Academic literature on the topic 'Anatomical defects'
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Journal articles on the topic "Anatomical defects"
Song, Seung Han, Hyeokdong Kwon, Sunje Kim, Joo Hak Kim, Hyun Woo Kyung, Sang-Ha Oh, Ho Jik Yang, and Yooseok Ha. "Propeller Dorsal Intercostal Artery Perforator Flap for an Extensive Defect on the Back Following Malignant Peripheral Nerve Sheath Tumor Resection: A Case Report." Archives of Hand and Microsurgery 26, no. 1 (March 1, 2021): 63–67. http://dx.doi.org/10.12790/ahm.20.0068.
Full textKamali, Y., No author No author, Z. Khaksar, A. Sharaki, and B. Kajbafi. "A detailed systematic anatomical study of monocephalic conjoined symmetric twin lambs." Open Veterinary Journal 5, no. 2 (2014): 124. http://dx.doi.org/10.5455/ovj.2014.v4.i2.p124.
Full textRao, Kavitha S., Vasumathi Kameswaran, and Benoit G. Bruneau. "Modeling congenital heart disease: lessons from mice, hPSC-based models, and organoids." Genes & Development 36, no. 11-12 (June 1, 2022): 652–63. http://dx.doi.org/10.1101/gad.349678.122.
Full textLadutko, D. Yu, V. N. Podhaisky, Yu N. Ladutko, A. V. Pekar, O. P. Kezlya, А. V. Selitsky, and A. V. Gubicheva. "Algorithm of surgical treatment of large bone defects of long tubular bones by vascularized bone grafting." Issues of Reconstructive and Plastic Surgery 24, no. 3-4 (January 20, 2022): 63–75. http://dx.doi.org/10.52581/1814-1471/78/06.
Full textTabery, Stefania, and Otto Daniëls. "How classical are the clinical features of the “ostium secundum” atrial septal defect?" Cardiology in the Young 7, no. 3 (July 1997): 294–301. http://dx.doi.org/10.1017/s1047951100004182.
Full textJenasamant, Saumya Sekhar, Manish V. Jawarkar, Swarnika Srivastava, Ajit Kumar Padhy, and Muhammad Abid Geelani. "Surgical challenge in situs inversus with dextrocardia and Lutembacher syndrome." Asian Cardiovascular and Thoracic Annals 26, no. 9 (March 6, 2017): 690–93. http://dx.doi.org/10.1177/0218492317697449.
Full textIorio, Caitlin Boling, J. Jared Christophel, and Stephen S. Park. "Nasal Reconstruction: Defects that Cross Anatomical Subunits." Facial Plastic Surgery 36, no. 01 (February 2020): 091–101. http://dx.doi.org/10.1055/s-0040-1701519.
Full textSun, Yu, Heike Helmholz, and Regine Willumeit-Römer. "Surgical Classification for Preclinical Rat Femoral Bone Defect Model: Standardization Based on Systematic Review, Anatomical Analysis and Virtual Surgery." Bioengineering 9, no. 9 (September 15, 2022): 476. http://dx.doi.org/10.3390/bioengineering9090476.
Full textSchmitz, HC, CC Egidy, H. Al-Khateeb, G. Cárdenas, T. Gehrke, and D. Kendoff. "Importance of Preoperative Imaging in Acetabular Revision Surgery - A Case Report." Open Orthopaedics Journal 6, no. 1 (May 30, 2012): 215–19. http://dx.doi.org/10.2174/1874325001206010215.
Full textAlmusharraf, Abdullah, and Andrew Whyte. "Task-based defect management: anatomical classification." Built Environment Project and Asset Management 6, no. 3 (July 4, 2016): 345–58. http://dx.doi.org/10.1108/bepam-02-2015-0006.
Full textDissertations / Theses on the topic "Anatomical defects"
Morosato, Federico. "Development of in vitro methods to test acetabular prosthetic reconstructions (messa a punto di metodi in vitro per la caratterizzazione biomeccanica di ricostruzioni acetabolari)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10154/.
Full textSilva, Marla Patrícia Garcia de Lima da. "Uma porta para o passado...estudo paleoantropológico de uma amostra de Não-Adultos dos vestígios Antropológicos exumados do Largo do Convento do Carmo (Lisboa) (séc. XVI – XVIII)." Master's thesis, Instituto Superior de Ciências Sociais e Políticas, 2014. http://hdl.handle.net/10400.5/12697.
Full textO objectivo desta dissertação prende-se com a descrição e estudo da amostra de 50 esqueletos não-adultos dos vestígios antropológicos exumados do Largo do Convento do Carmo, em Lisboa, que datam do período entre o século XVI a meados do século XVIII. O que implicou a quantificação de número de peças ósseas por indivíduo através do registo do Índice de Conservação Anatómica (ICA) e do estado geral da amostra (ICAG). O valor calculado de 27,77% apresentou-se bastante baixo. Foi realizado o estudo dos parâmetros paleodemográficos, na estimativa da idade à morte estimou-se a idade à morte em 40 dos indivíduos da amostra e, na determinação sexual aplicou-se o método a 14 indivíduos. Na observação morfológica (não-métrica) foram observados os caracteres discretos cranianos e pós-cranianos mas sem grande expressão. Nos indicadores de stresse ou condicionamentos de crescimento observou-se a criba orbitalia, a hiperostose porótica mas, foi nas hipoplasias lineares do esmalte dentário que se verificou uma prevalência maior de 36%. Por fim, na patologia oral observaram-se as cáries, o desgaste dentário e o tártaro. A prevalência de cáries foi de 6,73% e de 681 dentes observados tinham cáries cavitadas 11 dentes.
The purpose of this dissertation was to make a description and study of a sample of 50 non-adult skeletons excavated from the Largo do Convento do Carmo, in Lisbon (16th to mid 18th century). It implied the quantification of bone pieces per individual in order to attain the anatomical conservational index, which was quite low 27,77%. It was also carried out a study of paleodemographic parameters, such as age at death which was obtained in 40 individuals, in the determination of sex the method could only be used on 14 individuals. On the non-metrical morphological approach was registered the epigenetic traits of the skull and of the axial skeleton but they did not show much expression. Regarding non-specific stress indicators, criba orbitalia and porotic hiperostoses was registered, but it was the linear enamel dental defects that with 36% prevalence stood out. Last but not least, on oral paleopathology was registered dental wear and dental calculus, but the prevalence went to 6,73% on carious lesions. Dental wear and dental calculus prevalence was very low and non-expressive.
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Mostefa, Kara Meriem. "Communication interventriculaire : de l'anatomie sur spécimens à la numérisation tridimensionnelle Anatomy of the ventricular septal defect in outflow tract defects: similarities and differences Channels between the ventricles: geometry and geography are both important “A new anatomic approach of the ventricular septal defect in the Interruption of the aortic arch Anatomy of the ventricular septal defect in congenital heart defects: a random association?" Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCB170.
Full textPart1: The ventricular septal defect (VSD) is the most common congenital heart disease and is an integral part of most complex congenital heart defects (CHD). In this work we tried to determine the distribution of the anatomic types of VSD in various CHD. We studied for this research 1178 heart specimens with CHD from the anatomic collection of the French Reference Center for Complex Congenital Heart Defects. During the morphologic study, special attention was paid to the anatomy of the VSD viewed from the right ventricular side. Our first result on outflow tract defects (OTD) was that all these defects share the same VSD, outlet in type. The anatomic differences between OTD regarding aortic-tricuspid continuity and the anatomy of the outlet septum suggest an anatomic continuum from interruption of the aortic arch (IAA) and VSD to common arterial trunk (CAT), rather than distinct physiological phenotypes. This could be explained embryologically by a defective rotation of the outflow tract. In the subgroup of IAA, the VSD in IAA type B is always an outlet VSD, in IAA type A the VSD can be of any type. This result reinforces the hypothesis of different pathogenic mechanisms responsible for the 2 types of IAA, and the inclusion of IAA type B in the group of cardiac neural crest defects. Conversely, IAA type A could be due to overlapping mechanisms: flow-related defect (coarctation-like) and neural crest contribution. We looked at the anatomic distribution of VSD in CHDs and we found that the VSD is similar in isolated VSD, aortic coarctation and transposition of the great arteries (TGA), while the VSD is predominantly outlet in outflow tract defects except TGA. This reinforces the allegedly different mechanisms in TGA and so-called cardiac neural crest defects. This anatomic approach could provide new insights in the grouping and etiology of CHD. Part2: One of the key success factors of the surgical treatment of complex congenital heart defects remains a detailed and in-depth understanding of the intracardiac anatomy. Currently, heart specimens are the best available teaching tools for studying the spatial relationships of the various components of the heart in complex congenital heart defects, like double outlet right ventricle (DORV). However, the access to anatomic collections is possible in only a few centres worldwide, and heart specimens may become damaged with time. We decided to study the intracardiac anatomy in DORV by using 3D imaging of heart specimens. The secondary objective is to build a database for teaching purposes. We performed CT scans with high resolution in heart specimens with various anatomic types of complex CHD with VSD. Heart specimens were fixed in 10% formalin. Openings were carefully stitched together before putting the heart in the CT scan. All 3D images were produced with a 3D reconstruction platform. The 3D view from the right and left ventricles showed the anatomic details very neatly for all hearts. We described the VSD, its localization, borders and surface. We described also the relationship of the VSD with the aorta and the pulmonary trunk and the length and orientation of the outlet septum. The ability to navigate through the heart cavities and vessels was very useful to understand the specific anatomy of the malformations. This study underlines the role of 3D scan reconstruction as an imaging modality to increase our understanding of the anatomy of complex congenital hearts defects like DORV. This could constitute an innovative pedagogic approach, and a way to preserve the anatomic collections in the future
Harb, Leandro José Corrêa. "AVALIAÇÃO IN VITRO DO CANAL CAVO-INTERRADICULAR EM MOLARES INFERIOR." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/6054.
Full textTodo tratamento endodôntico pode levar a insucessos devido às alterações anatômicas internas. Dentre estas está o canal cavo-interradicular, que comunica o assoalho da câmara pulpar com o periodonto na região da furca. Assim foi propósito deste trabalho avaliar a presença deste canal em 360 molares inferiores permanentes humanos que se encontravam armazenados desidratados, utilizando quatro métodos de avaliação: radiografias, a olho nu (ON), pelo microscópio odontológico (MO) e diafanização. Foram comparados os métodos (radiográfico e diafanização) utilizados para verificar a presença do canal cavo-interradicular; e observada a presença de foraminas através dos métodos (ON e MO) pelo assoalho da câmara pulpar e furca; bem como comparados os resultados entre os grupos de rizogênese completa (RC) e incompleta (RI). Foram utilizados 360 molares inferiores pertencentes ao acervo da Disciplina de Anatomia e Escultura Dental da UFSM, todos com assoalho da câmara pulpar intacto e armazenado em recipientes secos. Os mesmos foram rehidratados, seccionados, até 1,5 mm apicalmente à furca e até 0,5 mm do assoalho pulpar. Após, foram imersos em hipoclorito de sódio 1% (24h), lavados em água corrente e nova imersão em hipoclorito de sódio 1% em ultrassom (10 min.), seguida de nova lavagem em água corrente e secos à temperatura ambiente. Depois, foram armazenados individualmente em recipientes de vidro, numerados e tampados. Todas as avaliações foram feitas pelo mesmo operador, sendo a radiográfica com quatro amostras por película com uma lupa (4x); a ON e MO (30x) com iluminação artificial direcional na amostra; e pela diafanização cada amostra em seu recipiente com líquido, sobre um negatoscópio e com auxílio do MO (30x). Pela análise radiográfica o canal cavo-interradicular não se mostrou evidente, mas como uma zona levemente radiolúcida na região da furca em 9,04% das amostras; com suspeita da sua presença em 2,33% e não foi encontrado em 88,63%; pela diafanização, o canal não foi encontrado em 100%; a ON foram evidentes foraminas em 20,9% na furca e 1,9% no assoalho pulpar; pelo MO, 62,1% na furca e 5% no assoalho pulpar. O grupo RC apresentou foraminas em 61,1% na furca e 5,8% no assoalho pulpar; o grupo RI com 64,7% na furca e 3% no assoalho pulpar. Diante das condições desenvolvidas neste trabalho pode-se concluir que o exame radiográfico realmente não serve como um meio de diagnóstico efetivo, mas sim como um exame auxiliar, importante para programar procedimentos clínicos; pelas avaliações a ON e MO, o número de foraminas é bem maior na furca que no assoalho pulpar, podendo ser sítios de deposição de placa bacteriana, dificultando a limpeza da região quando exposta na cavidade bucal, e não houve maior número de foraminas no grupo rizogênese incompleta; o uso do microscópio odontológico é uma ferramenta excelente para visualização dos detalhes anatômicos dentários; a diafanização é um excelente método avaliativo, visto que temos a total visualização em terceira dimensão da anatomia interna dental; e que há necessidade de se estudar mais a respeito da utilização de dentes armazenados desidratados em algumas metodologias de pesquisas.
Dantas, Jacqueline Garcia Fernandes. "Comprova??o da real comunica??o entre o endodonto e o periodonto atrav?s do canal cavo inter-radicular e sua preval?ncia em molares inferiores humanos." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17081.
Full textThe neurovascular system of the pulp and of the periodontium is interconnected and among the possible intercommunications between these two tissues, there is the cavo inter-radicular canal. It is a small canal that goes through any inter-radicular dentine and arises in the furca region of the multi-radicular teeth. Its predominance has been studied in the literature, by several methodologies, with divergent results. The objective of this work was to establish, in vitro, the predominance of the cavo inter-radicular canal, in human lower molars, through the diaphanization technique and dye leakage. For this research, 140 teeth (100 first and second 40 lower molars) were selected, extracted due to different reasons, belonging to a teeth bank of the Endodontics discipline of the Dentistry College at Federal University of Rio Grande do Norte. The teeth were preserved in formol until the moment of use and immersed in physiological solution. Had the endodontic access fulfilled and the whole external surface, except for the furcation, sealed with two layers of nail enamel. The cleaning of the pulpar chamber floor was carried out with sodium hypochlorite solution 5%, being this solution renewed every 5 minutes, during 1 hour. The teeth were immersed in Indian dye and, after drying of the dye, they had their crowns split up in the amelo-cemental junction. Then, they were examined in a stereomicroscope, where marks of the coloring were observed in the furcation and on the pulpar floor. After this recording, the sample was diaphanized and with the transparent teeth, it was possible to observe in the stereomicroscope, the true inter-radicular canals. As a result of this experiment, the presence of these canals was observed in 13 % of the first and 7, 5 % of the second evaluated molars. The study showed that both the presence of the cavo inter-radicular canal is real and the diaphanization and dye leakage is an efficient method for this type of research
O sistema neurovascular da polpa e do periodonto ? interligado e, dentre as poss?veis intercomunica??es entre esses dois tecidos, tem-se o canal cavo inter-radicular. Trata-se de um pequeno canal que percorre toda dentina inter-radicular e se exterioriza na regi?o de furca dos dentes multirradiculares. Sua preval?ncia foi estudada na literatura, por diversas metodologias, com resultados divergentes. O objetivo desse trabalho foi estabelecer, in vitro, a preval?ncia do canal cavo inter-radicular, em molares inferiores humanos, atrav?s da t?cnica de infiltra??o de corante e diafaniza??o. Para a pesquisa foram selecionados 140 dentes (100 primeiros e 40 segundos molares inferiores), extra?dos por raz?es diversas, pertencentes ao estoque de dentes da disciplina de Endodontia da Faculdade de Odontologia da Universidade Federal do Rio Grande do Norte. Os dentes anteriormente mantidos em formol foram lavados em ?gua corrente e conservadps em soro fisiol?gico at? o momento de uso. Nesse momento os mesmos tiveram os acessos endod?nticos realizados e toda a superf?cie externa, exceto a furca, impermeabilizada com duas camadas de esmalte de unha. A limpeza do assoalho da c?mara pulpar foi feita com solu??o de hipoclorito de s?dio a 5%, sendo essa solu??o renovada a cada 5 minutos durante 1 hora. Os dentes foram imersos em tinta nanquim e, ap?s secagem do corante, tiveram suas coroas seccionadas na jun??o amelocement?ria. Foram ent?o examinados em um estereomicrosc?pio, onde se observou marcas do corante na furca e ou assoalho pulpar. Feito esse registro, a amostra foi diafanizada e, com os dentes transparentes, p?de-se observar no estereomicrosc?pio, os verdadeiros canais cavo inter-radiculares. Como resultado desse experimento, foi verificada a presen?a desses canais em 13% dos primeiros e 7,5% dos segundos molares avaliados. O estudo demonstrou que a presen?a do canal cavo inter-radicular ? real e a diafaniza??o associada ? infiltra??o de corante um m?todo eficaz para esse tipo de pesquisa
CORRÊA, Priscila Gomes. "Defesas foliares em resposta à herbivoria em espécies lenhosas de restinga,Ipojuca-PE." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4924.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
The leaf, the major photosynthetic plant organ, has the important function to adjust the plants to different habitats through morphological, chemical and physiological changes as a defense against the environmental factors. The chewing insects, the major consumers of leaf tissues, prejudice the behavior of the plants through the consumption of the photosynthetic tissue. Some plants survive developing chemical and structural strategies of defense. This study evaluated the anatomical and chemical characteristics of defense in plants responsible to the acceptability or resistance to the herbivorous chewing insects in leaves, young and mature, in individuals of species occurring in restinga vegetation. The studied species were: Andira fraxinifolia Benth. (Fabaceae), Annona crassiflora Mart. (Annonaceae), Casearia javitensis Kunth (Flacourtiaceae), Guettarda platypoda DC. (Rubiaceae), Hancornia speciosa Gomes (Apocynaceae), Marlierea cf. regeliana (Myrtaceae), Myrcia bergiana O. Berg.(Myrtaceae), Ouratea fieldingiana (Gardner) Engl. (Ochnaceae), Sacoglottis mattogrossensis Malme (Humiriaceae) e Tetracera breyniana Schlechtd (Dilleniaceae). Ten young and ten mature leaves from five indivuals of each species were collected. All leaves were digitized in scanner and after fiexd in FAA 50. The phytochemical tests and the histological slides were made following the respective methods. The anatomical analyses were made using an optical microscope and a program of image analysis. Ouratea fieldingiana showed higher values to thickness of cuticle and epiderm, comparing with other studied species. However, Annona crassiflora exhibit greater leaf thickness and it was the third specie less attacked by herbivores. The species H. speciosa and S. matogrossensis showed smaller leaf lamina taken off by herbivorous, probably as a response to the presence of latex and rutine, indicating a chemical defense. The anatomical characters and the herbivory percentage showed a negative correlation without significance. However, the phytochemical and anatomical analysis exhibited a great variety of defensive strategies, as a positive result to the major secondary compounds classes (alkaloids, phenolic metabolites, and saponosides) and anatomical characters (cuticle and epidermal thickness, presence of trichomes, crystals and schlerenchymatic tissues).
A restinga apresenta uma flora marcada por fatores como elevadas temperaturas, luminosidade, solo arenoso e deposição de substâncias salinas. A desordenada exploração dos recursos naturais vem alterando processos biológicos como as interações entre planta e herbívoro, promovendo um maior investimento em defesa.As defesas relativas à supressão de tecido fotossintético são classificadas como constitutivas ou induzidas, diferindo na forma como a planta expressa a resistência, podendo ser, ainda, classificadas como químicas e físicas. Defesas físicas abrangem características estruturais da planta, enquanto que as defesas químicas são representadas por compostos secundários tóxicos ou repelentes. Esta pesquisa objetivou avaliar características anatômicas e fitoquímicas de defesa em folhas, jovens e adultas, de indivíduos de espécies ocorrentes numa vegetação de restinga sob a ação de insetos mastigadores. Foram coletadas dez folhas jovens e dez folhas adultas de cinco indivíduos das seguintes espécies: Andira fraxinifolia Benth. (Fabaceae), Annona crassiflora Mart. (Annonaceae), Casearia javitensis Kunth (Flacourtiaceae), Guettarda platypoda DC. (Rubiaceae), Hancornia speciosa Gomes (Apocynaceae), Marlierea cf. regeliana (Myrtaceae), Myrcia bergiana O. Berg.(Myrtaceae), Ouratea fieldingiana (Gardner) Engl. (Ochnaceae), Sacoglottis mattogrossensis Malme (Humiriaceae) e Tetracera breyniana Schlechtd (Dilleniaceae). O material botânico foi digitalizado em scanner de mesa e fixado em FAA 50. Os testes fitoquímicos e a confecção de lâminas histológicas seguiram metodologia apropriada. A análise das secções histológicas foi realizada sob microscopia óptica e programa de análise de imagens. A porcentagem de herbivoria variou entre 0-21%. O. fieldingiana exibiu os maiores valores referentes à espessura da cutícula superior (12,77μm) e inferior (6,55μm), assim como da epiderme nas faces adaxial (76,01μm) e abaxial (25,57μm). Andira fraxinifolia, Annona crassiflora e C. javitensis apresentaram tricomas simples restritos a face abaxial. G. platypoda, Myrcia bergiana e T. breyniana apresentaram tricomas simples em ambas as faces. As análises para polifenóis e terpenóides nas espécies estudadas mostraram resultados positivos, enquanto que o teste para alcalóides exibiu resultado positivo apenas em A. crassiflora. As análises mostraram uma grande variedade de estratégias defensivas, entretanto os parâmetros anatômicos e porcentagem deherbivoria não apresentaram resultados significantes.
Albuquerque, Danielle Frota de. "Avaliação de imagens de defeitos ósseos induzidos na cabeça da mandíbula por meio de tomografia computadorizada de feixe cônico." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288921.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: A Tomografia Computadorizada (TC) de feixe cônico é indicada para avaliar a morfologia óssea da articulação têmporomandibular (ATM). O objetivo dessa pesquisa é avaliar diferentes protocolos de aquisição no diagnóstico de alterações ósseas da ATM através da TC de feixe cônico. A amostra foi constituída de 30 cabeças de mandíbula. Perfurações foram confeccionadas em diferentes regiões (medial, central e lateral) das superfícies das cabeças de mandíbulas, variando no tamanho, que simulam alterações ósseas na ATM. Essas mandíbulas foram submetidas à exame de TC feixe Cônico (Cone Beam i-Cat Imaging Sciences International, Hatfield, Pennsylvania, EUA) no protocolo de aquisição 1 (voxel de 0,4mm, tempo 20 segundo, FOV de 6cm, 18,45mAs e 120Kvp) e 2 (voxel 0,25mm, tempo de exposição 40 segundo, FOV 6 cm, 36,12 mAs e 120Kvp) As imagens foram formatadas, impressas em filme e avaliadas por dois examinadores. Foi aplicado a estatística de Kappa e teste de validade (especificidade e sensibilidade). Os resultados foram obtidos com a comparação entre as avaliações dos examinadores e os defeitos confeccionados. Os valores de Kappa encontrados, independente da área, no protocolo 2 (Kappa=0,241; Kappa=0,109) foram maiores que no protocolo 1 (Kappa=0,221; Kappa=0,058) para os dois examinadores, mas sem diferenças estatísticas significantes. Quando se avaliou as regiões separadamente, a maior concordância observada foi na região central, nos dois examinadores, no protocolo 1 (Kappa=0,378 e Kappa=0,270) e no protocolo 2 (Kappa=0,426 e 0,379). Concluíu-se que os protocolos avaliados podem ser usados para a observação de alterações na cabeça da mandíbula, contudo o protocolo 2 pode ser indicado para avaliação mais detalhada dos defeitos ósseos e que houve dificuldade em detectar defeitos muito pequenos, menores ou igual a 0,9mm
Abstract: Cone beam computed tomography (CT) is recommended to assess TMJ bone morphology. The aim of the present study was to evaluate different acquisition protocols of cone beam CT for the evaluation of simulated mandibular condyle bone lesions. Thirty macerated condyle were used. Spherical lesions were created in different regions (medial, central and lateral) of the condyles' surface, varying in size, which simulated bone changes in the TMJ. Condyles were submitted to cone beam computed tomography (Cone Beam i- Cat Imaging Sciences International, Hatfield, Pennsylvania, USA). The images were formatted and printed on film and subsequently evaluated by two examiners. The statistical tests used were the Kappa statistics and test validity (sensitivity and specificity). It was observed that when comparing the examiners with the gold standard, regardless of the area, the Kappa values observed for Protocol 2 (Kappa = 0.241, Kappa = 0.109) were higher than those for protocol 1 (Kappa = 0.221, Kappa = 0.058 ) for both examiners, but were not statistically different. When evaluating the individual regions, the highest agreement between both examiners was observed in the central region in protocol 1 (Kappa = 0.378 and kappa = 0.270) and protocol 2 (Kappa = 0.426 and 0.379). It can be concluded that both protocols evaluated proved to be reliable for the observation of defects in the condyle. However, protocol 2 can be recommended for further evaluation of bone defects, and very small defects, 0.9mm or smaller, were difficult to detect with this technique
Doutorado
Radiologia Odontologica
Doutor em Radiologia Odontológica
Amaral, Deise. "Anatoquímica de nós de Pinus elliottii var. elliottii." reponame:Repositório Institucional da UFPR, 2014. http://hdl.handle.net/1884/40042.
Full textCo-orientador : Prof. Dr. Heber dos Santos Abreu
Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Engenharia Florestal. Defesa: Curitiba, 13/10/2014
Inclui referências : f. 141-152
Área de concentração : Tecnologia e utilização de produtos florestais
Resumo: Os nós são considerados um dos defeitos mais prejudiciais a aplicação da madeira. Sua ocorrência é inerente a cada espécie, fazendo parte da fisiologia natural da árvore, mas, em espécies florestais de interesse econômico, são considerados prejudiciais por reduzir o valor comercial de peças de madeira. Pela sua influência nas propriedades tecnológicas da madeira, mercados de comercialização de produtos florestais elaboram normas de classificação específicas e institutos de pesquisas viabilizam estudos com intuito de avaliar sua interferência, minimizar sua ocorrência, reduzir os prejuízos causados por eles e expandir possibilidade de utilização em outros fins, mas apesar dos inúmeros trabalhos científicos divulgados a respeito de nós, existe uma lacuna de conhecimento básico sobre sua composição química e arranjo anatômico. Neste contexto, a finalidade desse trabalho é fornecer informações sobre dinâmica de elementos químicos e anatômicos que formam os nós. A espécie utilizada para o estudo foi o Pinus elliottii var. elliottii, largamente utilizado na indústria de papel e celulose e também utilizada para a produção de madeira processada. Para dar suporte ao trabalho, o Capítulo 1 apresenta revisão de estudos e pesquisas sobre o assunto. O detalhamento do estudo anatômico é apresentado no Capítulo 2: caracterização anatômica de nós em Pinus elliottii var. elliottii e o estudo químico, apresentado no Capítulo 3: estudo químico de lignina e celulose em madeira de nós de Pinus elliottii var. elliottii. No estudo anatômico, os resultados indicaram que os elementos de estudos do desenvolvimento das traqueídes (comprimento, espessura da parede, diâmetro total e de lume) apresentaram características específicas, em padrões distintos dos observados para a madeira de entorno dos nós. Nos estudos químicos foi identificada a existência de um gradiente crescente de percentual de lignina e cristalinidade da molécula de celulose entre regiões de nó, madeira livre de nó e transição; formação de estrutura mais aldeídicas em ligninas da madeira livre de nó ocorrente no entorno do nó e lignificação em estágio de maturação mais avançado nas amostras de nós. Palavras-chave: Pinus elliottii; nós; anatomia; lignificação; cristalinidade da celulose.
Abstract: The knots are considered one of the most harmful defects the application timber. Its occurrence is inherent in each species, part of the natural physiology of the tree, but tree species of economic interest, are considered harmful by reducing the commercial value of wood pieces. By its influence on technological properties of wood, commercialization of forest products markets elaborate standards of specific classification and research institutes enable studies designed to assess their interference, minimize its occurrence, reduce the harm caused by them and expand the possibility of using other purposes, but despite numerous scientific papers published about knots, there is a lack of basic knowledge about their chemical composition and anatomical arrangement. In this context, the purpose of this work is to provide information on the dynamics of chemical and anatomical elements that form the knots. The species used for the study was the Pinus elliottii var. elliottii, widely used in the pulp and paper industry and also used for the production of processed wood. To support the work, Chapter 1 presents review of studies and research on the subject. The details of the anatomical study is presented in Chapter 2: anatomical characterization of knots in Pinus elliottii var. elliottii and the chemical study, presented in Chapter 3: Chemical study of lignin and cellulose in wood of Pinus elliottii var. elliottii. In the anatomical study, the results indicated that the elements of studies of the development of tracheids (length, wall thickness, overall diameter and volume) presented specific characteristics in different patterns observed for the wood around the knots. In chemical studies has identified the existence of a gradient increasing percentage of lignin and cellulose crystallinity of the molecule between knots regions, clear wood and transition; formation of more aldehydic wood lignin structure in clear wood occurring in the vicinity of the knot and lignification in more advanced stage of maturation in samples from knots. Keywords: Pinus elliottii; knots; Anatomy; lignification; cellulose crystallinity.
Vanni, Christiana Maria Ribeiro Salles. "Retalho miocutâneo de peitoral maior na reconstrução dos defeitos da cabeça e pescoço: estudo anatômico." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5132/tde-15012014-144008/.
Full textObjectives: Determine whether the length of the pectoralis major myocutaneous pedicled flap and its ability to reach multiple head and neck sites are influenced by anthropometric data and by the side of flap dissection. The study is also designed to determine whether infraclavicular rotation provides a significant gain in flap reach over supraclavicular rotation. Design: Prospective, cross-sectional and anatomical study on cadavers and patients. Materials: Fifty pectoral major myocutaneous flaps were studied in fresh adult cadavers less than 24 hours after death provided by the Serviço de Verificação de Óbitos of the University of São Paulo, and later in 15 patients undergoing head and neck reconstruction using this flap. Methods: For all cases a standardized quadrangular skin island measuring 8 cm x 6 cm (height x width) was employed, located over the sternocostal portion of the major pectoralis muscle, with the nipple as the medial limit and the muscle\'s inferior border as the caudal limit. All flaps were based only on the pectoralis branch of the thoracoacromial artery and the rotation was initially performed over the clavicle. Pedicle length was measured after rotation, from the midpoint of the clavicle to the superior border of the skin island. The reach of the skin island center was tested to the following sites: laryngeal prominence of the thyroid cartilage, chin, angle of the mandibule, external auditive canal and orbit. Ratios of the length of the pedicle and the reach of the flap and the anthropometric data and dissection side were analyzed. Afterwards, only in the cadavers, the flap was rotated beneath the clavicle and its reach to the same regions was measured again, and then compared to the result obtained from supraclavicular rotation. Results: In the cadavers, the average pedicule flap length was 17.67 ± 2.24 cm, while for the patients, the average length was 16.03 ± 1.35 cm. All flaps reached all studied sites, except for the orbit, which was reached in 20 cases by supraclavicular rotation (40%), and in 21 cases beneath the clavicle (42%) in the cadavers, and in 13.3% of the patients. In the cadavers, infraclavicular rotation did not result in a significant gain in reach to the orbit or to any other studied site (P=0.839 - chi-square), although there was a statistically significant (p=001; Pearson Correlation) gain of 0.61 cm in the average length of the flap. In the univariate analysis, there was a statistically significant difference in the cadavers for the reach of the flap to the orbit in individuals with a greater acromion-trochanter distance (DAT; p= 0.008 - Student\'s t-test), greater biacromial distance (DBA; p= 0.024 - Student\'s t-test) and a smaller value for the ratio of the mastoidsuprasternal notch distance over the acromion-trochanter distance - DMF/DAT (p= 0.005 - Student\'s t-test). It was also observed that the cadavers whose flaps reached the orbit had statistically higher body weights (p=0.036 - Student\'s t-test). With regard to the length of the flap, in the univariate analysis, there was a positive and statistically significant correlation between the length of the flap and the biacromial distance - DBA (r= 0.311; p= 0.028 - Pearson correlation); a negative and statistically significant correlation with the ratio of the mastoid-suprasternal notch distance over the biacromial distance - DMF/DBA (r= -0.362; p= 0.010 - Pearson correlation) and with the ratio between the mastoid-suprasternal notch distance over the acromion-trochanter distance - DMF/DAT (r= -0.403; p= 0.004 - Pearson correlation). Whereas in the patients, the univariate analysis showed a positive and statistically significant correlation between the length of the flap and the length of the sternum (CE) (r= 0.722; p= 0.002 - Spearman correlation) and a negative and statistically significant correlation with the ratio between the mastoidsuprasternal notch distance over the length of the sternum - DMF/CE (r= - 0.587; p= 0.021 - Spearman correlation). With the results obtained in this last analysis, the variables in the patients with p < 0.20 were submitted to multivariate analysis using linear regression in an effort to establish an equation to predict the length of the vascular flap. Sternum length (p=0.004) was the only variable found that was capable of determining the length of the vascular pedicle of the PMMC flap. Based on these regression data, an equation was formulated to determine the length of the vascular pedicle of the PMMC flap (COMP) based on the length of the sternum (CE), as follows: COMP = 2.54 + 0.64 X CE. Conclusions: Infraclavicular rotation of the pectoral major myocutaneous flap does not add to the reach of the flap to the head and neck region as compared to supraclavicular rotation; the reach of the pectoral major myocutaneous flap is not influenced by the side of the dissection or by anthropometric measures; and the length of the vascular pedicle is not influenced by the side of dissection, but is positively influenced by sternum length. Although anthropometric measures do not influence the reach of the flap according to this anatomical model, it can be inferred that the determinant equation of the length of the pedicle can, in practice, contribute to the planning of head and neck reconstruction using the pectoral major myocutaneous flap, especially for more cranial defects
Reiff, Rodrigo Bezerra de Menezes. "Reparo de defeito osteocondral no joelho de coelhos utilizando centrifugado de medula óssea autóloga." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5140/tde-27092010-155257/.
Full textThe articular cartilage, due to its avascular nature, presents a limited regeneration capacity. A therapeutical approach to the treatment of cartilage defects consists of the utilization of cells or tissues applied to the lesion site. The aim of this study was to evaluate the effect of applying autologous bone marrow centrifuged in osteochondral lesions in the knees of rabbits, compared to a control group of osteochondral lesions without any filling, analyzing the behavior of these groups in terms of time. Twelve adult albino male New Zealand rabbits were used being submitted to an osteochondral lesion of 4 mm in diameter and 3 mm deep in both knees, at the femoral trochlea area. On the right knees, which comprised the Study Group, the osteochondral defect was filled by a clot of mesenchymal cells, obtained by centrifugation of an aspirate from bone marrow and sealed with fibrin glue. On the left knees, which comprised the Control Group, the osteochondral defect did not get any filling. The animals were divided into 3 groups of 4 rabbits, and studied after eight, 16 and 24 weeks. The results were described based on a histological grading scale which took into account the cell morphology, the subchondral bone reconstruction, the matrix staining, the filling of the defect, the surface regularity and the bonding of the edges. The statistical analysis was made by the t-student Test for paired data in the comparison between the Study Group and the Control Group. For the comparisons made by the time factor, it was used the ANOVA Test one way. With 5% level of confidence, the hypothesis of equality between the Study and Control Groups was rejected. It was observed a decreasing distance between scores of the Study and Control Groups as time increased, as well as an increasing tendency of the scale value for the Control Group. It was concluded that the application of autologous bone marrow centrifuged in osteochondral defects in the knees of rabbits showed better result in histological evaluation, in comparison to the Control Group. By analyzing the evolution of the groups through time, there was an approach of their histological scores, especially by the increase observed in the Control Group
Books on the topic "Anatomical defects"
D, Jacobstein Mark, ed. Magnetic resonance imaging of congenital heart disease: Anatomic, angiographic, and echocardiographic correlations. St. Louis: Mosby, 1988.
Find full textCrum, Brian A., Eduardo E. Benarroch, and Robert D. Brown. Neurologic Disorders Categorized by Anatomical Involvement. Oxford University Press, 2012. http://dx.doi.org/10.1093/med/9780199755691.003.0523.
Full textEngels, Eric A., and Allan Hildesheim. Immunologic Factors. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190238667.003.0025.
Full textSerfass, Evan R., and Justin D. Ramos. Ventricular Septal Defect. Edited by Kirk Lalwani, Ira Todd Cohen, Ellen Y. Choi, and Vidya T. Raman. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190685157.003.0007.
Full textNguyen, Khoa, and Patrick Callahan. Transcatheter Closure of Atrial Septal Defects. Edited by Kirk Lalwani, Ira Todd Cohen, Ellen Y. Choi, and Vidya T. Raman. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190685157.003.0014.
Full textDemetriades, Demetrios, Leslie Kobayashi, and Lydia Lam. Cardiac complications in trauma. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0062.
Full textDemetriades, Demetrios, Leslie Kobayashi, and Lydia Lam. Cardiac complications in trauma. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199687039.003.0062_update_001.
Full textLam, Lydia, Leslie Kobayashi, and Demetrios Demetriades. Cardiac complications in trauma. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199687039.003.0062_update_002.
Full textLam, Lydia, Leslie Kobayashi, and Demetrios Demetriades. Cardiac complications in trauma. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199687039.003.0062_update_003.
Full textHayashi, Daichi, Ali Guermazi, and Frank W. Roemer. Radiography and computed tomography imaging of osteoarthritis. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199668847.003.0016.
Full textBook chapters on the topic "Anatomical defects"
Auffarth, Alexander, Mark Tauber, and Herbert Resch. "The J-Bone Graft for Anatomical Reconstruction of Glenoid Defects." In Shoulder Instability, 89–116. Milano: Springer Milan, 2011. http://dx.doi.org/10.1007/978-88-470-2035-1_5.
Full textTurner, Benjamin, John Collin, and Rui Fernandes. "Soft Tissue Reconstruction of the Maxillofacial Region." In Oral and Maxillofacial Surgery for the Clinician, 1941–67. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_86.
Full textZimmermann, Arthur. "Tumor-Like Lesions of the Hepatobiliary Tract: Anatomical Variations and Malformations Resulting in Hepatic Mass Effects or Focal Defects." In Tumors and Tumor-Like Lesions of the Hepatobiliary Tract, 1–12. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26587-2_121-1.
Full textZimmermann, Arthur. "Tumor-Like Lesions of the Hepatobiliary Tract: Anatomical Variations and Malformations Resulting in Hepatic Mass Effects or Focal Defects." In Tumors and Tumor-Like Lesions of the Hepatobiliary Tract, 2171–82. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26956-6_121.
Full textMarino, Bruno, Maria Cristina Digilio, Federica Mileto, Emanuela Conti, and Bruno Dallapiccola. "Atrioventricular Canal Defect: Anatomical and Genetic Characteristics." In Cardiovascular Development and Congenital Malformations, 244–47. Malden, Massachusetts, USA: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470988664.ch61.
Full textKleinübing, Harry, and Mauro S. L. Pinho. "Transperineal Ultrasonography of Anatomic Defects in Fecal Incontinence." In Imaging Atlas of the Pelvic Floor and Anorectal Diseases, 35–37. Milano: Springer Milan, 2008. http://dx.doi.org/10.1007/978-88-470-0809-0_6.
Full textFaletra, Francesco F., Vera L. Paiocchi, Laura A. Leo, Susanne A. Schlossbauer, and S. Yen Ho. "Atrial Septal Defects: 2DE vs 3DE and Anatomic Specimen." In Practical 3D Echocardiography, 239–49. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72941-7_20.
Full textPatel, Krupal B., Stephen Y. Kang, and Matthew O. Old. "Principles of Lateral Craniofacial Reconstruction: Anatomic Defect-Based Approach to Reconstruction." In Principles of Lateral Craniofacial Reconstruction, 19–31. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50291-1_2.
Full textEbels, T., E. J. Meijboom, R. H. Anderson, M. J. M. Schasfoort-van Leeuwen, A. Eijgelaar, and J. N. Homan van der Heide. "Anatomic Correlations between Left Ventricular Inflow and Outflow Tract in Atrioventricular Septal Defect with Separate Valve Orifices." In Pediatric Cardiology, 911–14. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4613-8598-1_246.
Full textHraška, Viktor, and Peter Murín. "Anatomic Correction of Corrected Transposition of the Great Arteries with Ventricular Septal Defect and Obstruction of the Left Ventricular Outflow Tract." In Surgery of Conotruncal Anomalies, 459–77. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23057-3_27.
Full textConference papers on the topic "Anatomical defects"
Tang, Elaine, Reza H. Khiabani, Christopher M. Haggerty, and Ajit P. Yoganathan. "In Vitro Investigation of the Effect of Flow Pulsatility on Power Loss in the Total Cavopulmonary Connection." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-54020.
Full textRoach, Brendan L., Andrea R. Tan, Aaron M. Stoker, James L. Cook, Keith J. Yeager, Gerard A. Ateshian, and Clark T. Hung. "Fabrication of Tissue-Engineered Cartilage Grafts With Anatomic Surface Contours for Repair of Large Focal Defects." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14657.
Full textDharia, Mehul A., Danny L. Levine, Roy D. Crowninshield, Eik Siggelkow, Dale A. Degroff, and Douglas H. Wentz. "Effectiveness of Trabecular Metal™ Acetabular Augment in Revision THR of Pelvis With Severe Acetabular Defect: A Finite Element Study." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176222.
Full textSundareswaran, Kartik S., Diane de Zelicourt, Kerem Pekkan, Gopinath Jayaprakash, David Kim, Brian Whited, Jarek Rossignac, Mark A. Fogel, Kirk R. Kanter, and Ajit P. Yoganathan. "Anatomically Realistic Patient-Specific Surgical Planning of Complex Congenital Heart Defects Using MRI and CFD." In 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2007. http://dx.doi.org/10.1109/iembs.2007.4352258.
Full textDasi, Lakshmi, Kerem Pekkan, Kevin Whitehead, Mark Fogel, and Ajit Yoganathan. "Hepatic Venous Blood Flow Distribution in the Total Cavopulmonary Connection: Patient-Specific Anatomical Models." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176392.
Full textPorto, Edoardo, Juan M. Revuelta Barbero, Eduardo J. Medina, Roberto M. Soriano, Candace E. Hobson, Esther X. Vivas, Clementino A. Solares, and Gustavo Pradilla. "Exoscope-Assisted Approach to Repair Middle Cranial Fossa Defects: An Anatomic Atlas and Case Report." In 31st Annual Meeting North American Skull Base Society. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1743980.
Full textTenhoff, Amanda C., Tinen L. Iles, Paul A. Iaizzo, and Robroy MacIver. "Aberrant Coronary Artery: A Rare Congenital Anomaly Examined Through Pre- And Post-Procedural 3D Anatomical Modeling." In 2022 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/dmd2022-1061.
Full textMady, Leila J., Thomas M. Kaffenberger, Katie L. Melder, Paul A. Gardner, Carl H. Snyderman, Shaum Sridharan, and Eric W. Wang. "Anatomic Considerations of Microvascular Free Tissue Reconstruction of Clival Defects: Expanding the Algorithm for Skull Base Reconstruction in Endoscopic Endonasal Surgery." In 30th Annual Meeting North American Skull Base Society. Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1702652.
Full textCordeiro, Glaucia Mesquita, Katrine Evelen Carole Silva Sousa Cançado, Nilo Antunes Souza Filho, Jessica Mendes Costa Freitas Santos, and José Pereira Guara. "HEREDITARY MULTIPLE EXOSTOSIS: THE ROLE OF THE MASTOLOGIST IN AN INTERDISCIPLINARY APPROACH." In Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1072.
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