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Academic literature on the topic 'Tomographic technique'

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Published: 10 December 2022
Last updated: 19 February 2023

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Journal articles on the topic "Tomographic technique"

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Takiguchi, Takashi. "Ultrasonic Tomographic Technique and Its Applications." Applied Sciences 9, no. 5 (March 11, 2019): 1005. http://dx.doi.org/10.3390/app9051005.

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X-ray tomography and magnetic resonance imaging (MRI) are excellent techniques for non-destructive or non-invasive inspections, however, they have shotcomings including the expensive cost in both the devices themselves and their protection facilities, the harmful side effects of the X-rays to human bodies and to the environment. In view of this argument, it is necessary to develop new, inexpensive, safe and reliable tomographic techniques, especially in medical imaging and non-destructive inspections. There are new tomographic techniques under development such as optical tomography, photo-acoustic tomography, ultrasonic tomography and so on, from which we take ultrasonic tomography as the topic in this paper. We introduce a review of the known ultrasonic tomographic techniques and discuss their future development.
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Lassen, N. A. "CBF by tomographic technique." Acta Neurologica Scandinavica 93 (July 1996): 2. http://dx.doi.org/10.1111/j.1600-0404.1996.tb00529.x.

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Lenthe, William C., McLean P. Echlin, Andreas Trenkle, Melanie Syha, Peter Gumbsch, and Tresa M. Pollock. "Quantitative voxel-to-voxel comparison of TriBeam and DCT strontium titanate three-dimensional data sets." Journal of Applied Crystallography 48, no. 4 (June 27, 2015): 1034–46. http://dx.doi.org/10.1107/s1600576715009231.

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Recently, techniques for the acquisition of three-dimensional tomographic and four-dimensional time-resolved data sets have emerged, allowing for the analysis of mm3volumes of material with nm-scale resolution. The ability to merge multi-modal data sets acquiredviamultiple techniques for the quantitative analysis of structure, chemistry and phase information is still a significant challenge. Large three-dimensional data sets have been acquired by time-resolved diffraction contrast tomography (DCT) and a new TriBeam tomography technique with high spatial resolution to address grain growth in strontium titanate. A methodology for combining three-dimensional tomographic data has been developed. Algorithms for the alignment of orientation reference frames, unification of sampling grids and automated grain matching have been integrated, and the resulting merged data set permits the simultaneous analysis of all tomographic data on a voxel-by-voxel and grain-by-grain basis. Quantitative analysis of merged data sets collected using DCT and TriBeam tomography shows that the spatial resolution of the DCT technique is limited near grain boundaries and the sample edge, resolving grains down to 10 µm diameter for the reconstruction method used. While the TriBeam technique allows for higher-resolution analysis of boundary plane location, it is a destructive tomography approach and can only be employed at the conclusion of a four-dimensional experiment.
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Bleuet, P., G. Audoit, J. P. Barnes, J. Bertheau, Y. Dabin, H. Dansas, J. M. Fabbri, et al. "Specifications for Hard Condensed Matter Specimens for Three-Dimensional High-Resolution Tomographies." Microscopy and Microanalysis 19, no. 3 (April 10, 2013): 726–39. http://dx.doi.org/10.1017/s1431927613000330.

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AbstractTomography is a standard and invaluable technique that covers a large range of length scales. It gives access to the inner morphology of specimens and to the three-dimensional (3D) distribution of physical quantities such as elemental composition, crystalline phases, oxidation state, or strain. These data are necessary to determine the effective properties of investigated heterogeneous media. However, each tomographic technique relies on severe sampling conditions and physical principles that require the sample to be adequately shaped. For that purpose, a wide range of sample preparation techniques is used, including mechanical machining, polishing, sawing, ion milling, or chemical techniques. Here, we focus on the basics of tomography that justify such advanced sample preparation, before reviewing and illustrating the main techniques. Performances and limits are highlighted, and we identify the best preparation technique for a particular tomographic scale and application. The targeted tomography techniques include hard X-ray micro- and nanotomography, electron nanotomography, and atom probe tomography. The article mainly focuses on hard condensed matter, including porous materials, alloys, and microelectronics applications, but also includes, to a lesser extent, biological considerations.
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Quan, Bao, and Jiang Nan. "A Simplified 3D Reconstruction Technique for Tomographic Particle Image Velocimetry." Advanced Materials Research 718-720 (July 2013): 2184–90. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.2184.

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Tomographic particle image velocimetry (Tomo-PIV) is a newly developed technique for three-component three-dimensional (3C-3D) velocity measurement based on the tomographic reconstruction of a 3D volume light intensity field from multiple two-dimensional projections. A simplification of 3D tomographic reconstruction model, which reduced from a 3D volume with 2D images to a 2D slice with 1D lines, simplify this 3D reconstruction into a problem of 2D plane reconstruction by means of optical tomography, is applied in this paper . The principles and details of the tomographic algorithm are discussed, as well as the study of ART and MART reconstruction algorithm is carried out by means of computer-simulated image reconstruction procedure. The three-dimensional volume particle field is reconstructed by MART reconstruction algorithm base on the simplified 3D reconstruction model which made a high reconstruction quality Q=81.37% prove that the way of simplification by MART reconstruction is feasible, so it could be applied in reconstruction of 3D particle field in tomographic particle image velocimetry system.
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Cederlund, A., M. Kalke, and U. Welander. "Volumetric tomography – a new tomographic technique for panoramic units." Dentomaxillofacial Radiology 38, no. 2 (February 2009): 104–11. http://dx.doi.org/10.1259/dmfr/16577933.

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Bagnuolo, W. G., and D. R. Gies. "Tomographic Separation of Composite Spectra of O-Type Stars." International Astronomical Union Colloquium 135 (1992): 140–42. http://dx.doi.org/10.1017/s0252921100006230.

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AbstractWe have analyzed UV photospheric lines of three O-type binaries (AO Cas, Plaskett’s Star, and 29 UW CMa) by means of tomographic and cross-correlation analyses, with the goal of estimating the physical properties of the individual stars. The tomographic techniques allowed us to estimate Teff and log g the luminosity ratio, and rotational velocities. The mass ratios were obtained from a cross-correlation technique, applied to spectral regions in which preliminary tomography shows the secondary has strong photospheric line features.
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Abdulkareem, L. A. "Identification of Oil-Gas Two Phase Flow in a Vertical Pipe using Advanced Measurement Techniques." Engineering, Technology & Applied Science Research 10, no. 5 (October 26, 2020): 6165–71. http://dx.doi.org/10.48084/etasr.3679.

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The characteristics of flow configuration in pipes are very important in the oil industry due to its role in governing equipment design. In vertical risers, many flow configurations could be observed such as bubbly, slug, churn, and annular flow. In this project, two tomographic techniques have been applied simultaneously to the flow in a vertical riser: the Electrical Capacitance Tomography (ECT) technique and the Capacitance Wire Mesh Sensor (WMS) technique. The employed pipe diameter was 50mm and the superficial studied velocities were 0.06-3.0m/s for gas and 0.06-0.4m/s for oil. Several techniques have been used to analyze the output data of the two tomography techniques such as time series of cross-sectional averaged void fraction, Probability Density Function (PDF), image reconstruction, and liquid hold-up profile. The averaged void fractions were calculated from the output signal of the two measurement techniques and plotted as functions of the superficial velocity of the gas. The flow patterns were identified from the PDF of the averaged void fraction. In addition, it was found that both tomographic techniques are reliable in identifying the flow regimes in pipes.
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Kim, H., M. Lee, H. Choi, C. Min, and H. Choi. "Tomographic image reconstruction techniques for accurate spent fuel assembly verification." Journal of Instrumentation 18, no. 01 (January 1, 2023): C01032. http://dx.doi.org/10.1088/1748-0221/18/01/c01032.

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Abstract Non-proliferation and the security of nuclear materials are essential. The international atomic energy agency (IAEA) considers a tomographic image acquisition technique of spent fuel assemblies a promising technique to accurately verify the rod-by-rod spent fuel conditions stored in a water pool. Researchers at Yonsei University in Korea developed the bismuth germanate (BGO) scintillator-based Yonsei Single-photon Emission Computed Tomography (YSECT). Previous research validated the YSECT system experimentally to quickly evaluate the radioactivity distribution of test fuel rods in the Korea Institute of Nuclear Nonproliferation and Control (KINAC). Quick verification of the fuel assembly requires the development of a high-quality image reconstruction algorithm that enables image acquisition within a short time. This study examined various tomographic image reconstruction techniques to identify patterns of missing fuel rods accurately. Rotational projection image data sets were obtained for 15 patterns of test fuel rods for 900 seconds using the single-photon emission computed tomography (SPECT) system installed at KINAC. The projection images were acquired every 5° while four 64-channel detectors rotated 90°. The acquired images were reconstructed using the following methods: filtered back-projection, simultaneous iterative reconstruction technique, order-subset simultaneous algebraic reconstruction technique, maximum likelihood expectation maximization (MLEM), and Fast-Iterative Shrinkage-Thresholding algorithm (FISTA). Among the reconstruction algorithms used in this study, the image quality of MLEM showed the best performance, and the image contrast of FISTA showed the highest result. Therefore, the signal-to-noise ratio of the tomographic image was improved using the image reconstruction technique optimized for the YSECT system to verify the patterns of fuel rods. Hence, even for the low-quality measured data with the short-time scan of the SPECT system, this advanced technique is expected to show better discriminability of the patterns of fuel rods in the assembly.
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Welander, U., G. Li, WD McDavid, and G. Tronje. "Transtomography: a new tomographic scanning technique." Dentomaxillofacial Radiology 33, no. 3 (May 2004): 188–95. http://dx.doi.org/10.1259/dmfr/55001955.

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Dissertations / Theses on the topic "Tomographic technique"

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Jacobsson, Svärd Staffan. "A Tomographic Measurement Technique for Irradiated Nuclear Fuel Assemblies." Doctoral thesis, Uppsala University, Department of Nuclear and Particle Physics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4227.

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The fuel assemblies used at the Swedish nuclear power plants contain typically between 100 and 300 fuel rods. An experimental technique has been demanded for determining the relative activities of specific isotopes in individual fuel rods without dismantling the assemblies. The purpose is to validate production codes, which requires an experimental relative accuracy of <2 % (1 σ).

Therefore, a new, non-destructive tomographic measurement technique for irradiated nuclear fuel assemblies has been developed. The technique includes two main steps: (1) the gamma-ray flux distribution around the assembly is recorded, and (2) the interior gamma-ray source distribution in the assembly is reconstructed. The use of detailed gamma-ray transport calculations in the reconstruction procedure enables accurate determination of the relative rod-by-rod source distribution.

To investigate the accuracy achievable, laboratory equipment has been constructed, including a fuel model with a well-known distribution of 137Cs. Furthermore, an instrument has been constructed and built for in-pool measurements on irradiated fuel assemblies at nuclear power plants.

Using the laboratory equipment, a relative accuracy of 1.2 % was obtained (1 σ). The measurements on irradiated fuel resulted in a repeatability of 0.8 %, showing the accuracy that can be achieved using this instrument. The agreement between rod-by-rod data obtained in calculations using the POLCA–7 production code and measured data was 3.1 % (1 σ).

Additionally, there is a safeguards interest in the tomographic technique for verifying that no fissile material has been diverted from fuel assemblies, i.e. that no fuel rods have been removed or replaced. The applicability has been demonstrated in a measurement on a spent fuel assembly. Furthermore, detection of both the removal of a rod as well as the replacement with a non-active rod has been investigated in detail and quantitatively established using the laboratory equipment.

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Jacobsson, Svärd Staffan. "A tomographic measurement technique for irradiated nuclear fuel assemblies /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4227.

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MALALLA, NUHAD ABDULWAHED YOUNIS. "C-ARM TOMOGRAPHIC IMAGING TECHNIQUE FOR DETECTION OF KIDNEY STONES." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1278.

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Nephrolithiasis can be a painful problem due to presence of kidney stones. Kidney stone is among the common painful disorders of the urinary system. Various imaging modalities are used to diagnose patients with symptoms of renal or urinary tract disease such as plain kidney, ureter, bladder x-ray (KUB), intravenous pyelography (IVP), and computed tomography (CT). As a traditional three-dimensional (3D) nephrolithiasis and kidney stones detection technique, computed tomography (CT) provides detailed cross-sectional images as well as 3D structure of kidney from moving the x-ray beam in a circle around the body. However, the risk of CT scans of the kidney is relatively higher exposure to radiation which is more than regular x-rays. C-arm technique is a new x-ray imaging modality that uses 2D array detector and cone shaped x-ray beam to create 3D information about the scanned object. Both x-ray source and 2D array detector cells mounted on C-shaped wheeled structure (C-arm). A series of projection images are acquired by rotating the C-arm around the patient in along circular path with a single rotation. The characteristic structure of C-arm allows to provide wide variety of movements around the patient that helps to remain the patient stationary during scanning time. In this work, we investigated a C-arm technique to generate a series of tomographic images for nephrolithiasis and detection of kidney stones. C-arm tomographic technique (C-arm tomosynthesis) as a new three dimensional (3D) kidney imaging method that provides a series of two dimensional (2D) images along partial circular orbit over limited view angle. Our experiments were done with kidney phantom which formed from a pig kidney with two embedded kidney stones inside it and low radiation dosage. Radiation dose and scanning time needed for kidney imaging are all dramatically reduced due to the cone beam geometry and also to limitation of angular rotation. To demonstrate the capability of our C-arm tomosynthesis to generate 3D kidney information for kidney stone detection, two groups of tomographic image reconstruction algorithms were developed for C-arm tomosynthesis: direct algorithms such as filtered back projection (FBP) and iterative algorithms such as simultaneous algebraic reconstruction technique (SART), maximum likelihood expectation maximization (MLEM), ordered- subset maximum likelihood expectation maximization (OS-MLEM) and Pre-computed penalized likelihood reconstruction (PPL). Three reconstruction methods were investigated including: pixel-driven method (PDM), ray-driven method (RDM) and distance driven method (DDM). Each method differs in their efficiency of calculation accuracy per computing time. Preliminary results demonstrated the capability of proposed technique to generate volumetric data about the kidney for nephrolithiasis and kidney stone detection by using all investigated reconstruction algorithms. In spite of each algorithms differs in their strategies, embedded kidney stone can be clearly visualized in all reconstruction results. Computer simulation studies were also done on simulated phantom to evaluate the results for each reconstruction algorithm. To mimic kidney phantom, simulated phantom was simulated with two different size kidney stones. Dataset of projection images was collated by using a virtual C-arm tomosynthesis with geometric configuration similar to real technique. All investigated algorithms were used to reconstruct 3D information. Different of image quality functions were applied to evaluate the imaging system and the reconstruction algorithms. The results show the capability of C-arm tomosynthesis to generate 3D information of kidney structures and to identify the size and location of kidney stones with limited amount of radiation dose.
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Kim, Chuyoung. "Algorithms for Tomographic Reconstruction of Rectangular Temperature Distributions using Orthogonal Acoustic Rays." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/73754.

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Non-intrusive acoustic thermometry using an acoustic impulse generator and two microphones is developed and integrated with tomographic techniques to reconstruct temperature contours. A low velocity plume at around 450 °F exiting through a rectangular duct (3.25 by 10 inches) was used for validation and reconstruction. 0.3 % static temperature relative error compared with thermocouple-measured data was achieved using a cross-correlation algorithm to calculate speed of sound. Tomographic reconstruction algorithms, the simplified multiplicative algebraic reconstruction technique (SMART) and least squares method (LSQR), are investigated for visualizing temperature contours of the heated plume. A rectangular arrangement of transmitter and microphones with a traversing mechanism collected two orthogonal sets of acoustic projection data. Both reconstruction techniques have successfully recreated the overall characteristic of the contour; however, for the future work, the integration of the refraction effect and implementation of additional angled projections are required to improve local temperature estimation accuracy. The root-mean-square percentage errors of reconstructing non-uniform, asymmetric temperature contours using the SMART and LSQR method are calculated as 20% and 19%, respectively.
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Sik, Ayhan Serkan. "X-ray Physics And Computerized Tomography Simulation Using Java And Flash." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/3/756239/index.pdf.

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For the education of X-ray imaging, having a detailed knowledge on the interaction of radiation with matter is very important. Also the generation and detection concepts of the X-ray have to be grasped well. Sometimes it is not easy to visualize the interactions and assess the scheme in quantum physics level for the medical doctors and the engineers who have not studied on the modern physics in an appropriate level. This thesis aims to visualize these interactions, X-ray generation and detection, and computerized tomographic imaging. With these simulations, the user can 1) observe and analyze which type of interaction occurs under which condition, 2) understand the interaction cross sections and interaction results, 3) visualise X-ray generation and detection features, 4) clarify the method of image reconstruction, and the features affecting the image quality in computerized tomography system. This is accomplished by changing the controllable variables of the radiation and the systems with the provided interfaces. In this thesis, JAVA/FLASH based simulation interfaces are designed to easily assess the subject. The benefits of these software are their ability to execute the programs prepared on the World Wide Web media. The interfaces are accessible from anywhere, at any time.
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Paduelli, Marcela Candian. "Estudo da técnica de ondas de tensão como instrumento de avaliação interna de árvores urbanas." Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/4180.

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Made available in DSpace on 2016-06-02T19:58:04Z (GMT). No. of bitstreams: 1 3535.pdf: 15531173 bytes, checksum: 0bec1dee483a9cf070857af8977686a0 (MD5) Previous issue date: 2011-03-18
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Arborization is fundamental in urban spaces, due to the significant benefits it provides. To important issue to guarantee the adequacy of the role it plays is its maintenance. To this purpose, an application of preventive methods of diagnosis is recommended, allowing the evaluation of external and internal conditions of tress. Currently, the analysis of urban trees is subjectivity. For a complete and secure analysis, it is important to associate this visual external analysis to an internal analysis. This could be done by applying non-destructive techniques, wich allows an internal visualization of the tree through a tomographic image, without causing it any damage. Among the non-destructive techniques, that have applicability in the internal evaluation of urban trees, the technique of stress waves can be highlighted. Considering the great benefits that this technique can provide in the evaluation of urban trees, this research seeks to verify its scientific and technique viability, analyzing its reliability and also establishing some parameters of application. Studies with 12 trees of the Caesalpinea peltophoroides species (popularly known as Sibipiruna) have been carried out. The stress waves equipment was applied to sections of 50, 90 and 130 cm from the trees basis, generating tomographic images of these sections. Afterwards, the trees were cut at the level of these sections and, in order to compare these images, some pictures of them were made. The results show that the trees waves technique presents large applicability for internal evaluation of urban trees, achieving significant results. Also some parameters for the application of this technique were established. For instance, it is necessary to determinate the speed reference of waves propagation for the interpretation of tomographic images, as well as it is to determinate the best height of the assays section. The latter consisting on the height of the diameter to the chest height (DAP), where average density of the tree is representative.
A arborização é fundamental nos espaços urbanos, devido aos importantes benefícios que proporciona. Para garantir que esta exerça adequadamente seu papel, é importante a sua manutenção, na qual é necessário o emprego de métodos de diagnóstico preventivos, que permitam avaliar as condições externas e internas das árvores. Atualmente, a análise de árvores urbanas é realizada basicamente pela análise visual externa, a qual apresenta grande subjetividade. Para uma análise completa e segura é importante que a análise visual externa seja acompanhada de uma análise interna. Esta pode ser realizada por meio de técnicas nãodestrutivas, que possibilitam a visualização interna da árvore através da imagem tomográfica, sem causar nenhum dano a esta. Dentre as técnicas não-destrutivas existentes, com aplicabilidade na avaliação interna de árvores urbanas, pode-se destacar a técnica de ondas de tensão. Diante dos grandes benefícios que esta técnica pode proporcionar na avaliação de árvores urbanas, esta pesquisa buscou verificar sua viabilidade técnica e científica, analisando a sua confiabilidade e estabelecendo parâmetros para sua aplicação. Foram realizados estudos com 12 árvores da espécie Caesalpinea peltophoroides (conhecida popularmente como Sibipiruna), nas quais foram realizadas medições em seções a 50, 90 e 130 cm da base, empregando o equipamento de ondas de tensão, o qual gerou as imagens tomográficas das seções. Em seguida, as árvores foram cortadas nas seções de ensaio e fotografadas, para posterior comparação com a imagem tomográfica gerada. Os resultados permitiram verificar que a técnica de ondas de tensão apresenta grande viabilidade de aplicação na avaliação interna de árvores urbanas, com resultados bastante significativos. Foi possível também estabelecer alguns parâmetros de aplicação da técnica, como a necessidade da determinação da velocidade de propagação da onda de referência, para a interpretação da imagem tomográfica e a determinação da melhor altura da seção para realização dos ensaios, a qual consistiu na altura do diâmetro à altura do peito (DAP), na qual se encontra a representatividade da densidade média da árvore.
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Boutet, Jérôme. "Localisation d'inclusions fluorescentes dans les milieux diffusants à l'aide de techniques laser. Application au diagnostic médical in vivo." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENY009/document.

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La tomographie de fluorescence est une méthode d'imagerie préclinique et clinique permettant de localiser des traceurs fluorescents préalablement injectés ou naturellement présents dans un organisme vivant. Ce travail de thèse à consisté, dans un premier temps, à définir l'architecture et les conditions d'utilisation optimales d'un tomographe de fluorescence continu appliqué à l'observation de tissus de faible épaisseur. On s'est en particulier attaché à traiter le problème de l'observation de tissus hétérogènes et d'organes fortement absorbants. Dans un deuxième temps, pour observer des tissus de plus grande épaisseur, nous avons montré l'apport de la mesure du temps de vol moyen des photons pour améliorer la localisation d'inclusions fluorescentes. Les performances de deux types de systèmes capables de réaliser ce type de mesure ont été comparées et nous avons proposé un protocole permettant d'en optimiser les principaux paramètres. Notre procédé a été appliqué à la problématique du guidage de biopsies prostatiques. Il pourra aussi être utilisé pour visualiser d'autres pathologies moyennant une simple adaptation
Fluorescence tomography is a preclinical and clinical imaging method which aims to localize fluorescent probes injected into a living organism. In this thesis work, we defined the optimal design and parameters of a continuous wave fluorescent tomograph applied to thin tissue observation. We handled the problem of observing heterogeneous and highly absorbing organs. Secondly, we showed the advantage of time of flight measurement for inclusion detection through thicker tissues. The detection performances of two types of system capable of these measurements were compared and we proposed a protocol to optimize their main parameters. This process was applied to the problematic of prostatic biopsy guiding. It would also be used to detect and localize other pathologies by means of a simple adaptation
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Breckon, W. R. "Image reconstruction in Electrical Impedance Tomography." Thesis, Oxford Brookes University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292254.

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Pratte, Jean-François. "Conception d'un amplificateur filtre rapide en CMOS 0.35 um destiné à un tomographe à émission de positrons animal." Sherbrooke : Université de Sherbrooke, 2002.

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Şık, Ayhan Serkan. "X-ray physics and computerized tomography simulation using java and flash." Ankara : METU, 2003. http://etd.lib.metu.edu.tr/upload/756239/index.pdf.

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Thesis (M.S.)--Middle East Technical University, 2003.
Keywords: Keywords: Radiation interaction with matter, cross section of interaction, radiation generation and detection, computerized tomographic imaging, Java/Flash simulations.
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Books on the topic "Tomographic technique"

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Pindera, Jerzy Tadeusz. Techniques of Tomographic Isodyne Stress Analysis. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-015-9359-5.

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Techniques of tomographic isodyne stress analysis. Dprdrecht: Kluwer Academic Publishers, 2000.

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Ibrahim, Muhammad N. Application of tomographic techniques to particle tracking. Manchester: UMIST, 1997.

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S, Beck M., and Commission of the European Communities. Directorate-General for Science, Research and Development., eds. Tomographic techniques for process design and operation. Southampton, UK: Computational Mechanics Publications, 1993.

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Correction techniques in emission tomography. Boca Raton: CRC Press, 2012.

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1948-, Rankin Sheila, ed. Practical CT techniques. London: Springer-Verlag, 1992.

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Measuring the quantum state of light. Cambridge, UK: Cambridge University Press, 1997.

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Schwarz, Tobias. Veterinary computed tomography. Chichester, West Sussex, UK: Wiley-Blackwell, 2011.

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K, Fishman Elliot, and Jeffrey R. Brooke, eds. Spiral CT: Principles, techniques, and clinical applications. New York: Raven Press, 1995.

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Practical CT: Technology and techniques. New York: Raven Press, 1987.

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Book chapters on the topic "Tomographic technique"

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Plets, C., A. L. Baert, G. L. Nijs, and G. Wilms. "Materials, Technique and Methodology." In Computer Tomographic Imaging and Anatomic Correlation of the Human Brain, 1–7. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4291-2_1.

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Woelke, H., P. Hanrath, M. Schlüter, W. Bleifeld, E. Klotz, H. Weiss, D. Waller, and J. von Weltzien. "Flashing Tomosynthesis — A New Tomographic Technique for Quantitative Coronary Angiography." In Angiocardiography, 277–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-662-00820-1_25.

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Bourillot, Eric, Pauline Vitry, Virgil Optasanu, Cédric Plassard, Yvon Lacroute, Tony Montessin, and Eric Lesniewska. "Solid Solution Characterization in Metal by Original Tomographic Scanning Microwave Microscopy Technique." In Characterization of Minerals, Metals, and Materials 2015, 65–72. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093404.ch8.

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Bourillot, Eric, Pauline Vitry, Virgil Optasanu, Cédric Plassard, Yvon Lacroute, Tony Montessin, and Eric Lesniewska. "Solid Solution Characterization in Metal by Original Tomographic Scanning Microwave Microscopy Technique." In Characterization of Minerals, Metals, and Materials 2015, 65–72. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48191-3_8.

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Yang, Guoxian, Keni Zhang, and Piwu Li. "Cross-Hole Seismic Computer Tomographic Technique for Underground Powerhouse of Xiaolangdi Project on the Yellow River." In Acoustical Imaging, 677–81. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2958-3_92.

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Stefanini, Ariela Marçal, Taylor Oliveira Fidelis, Gustavo Moreira Penna, Gabriel Rodrigo Gomes Pessanha, Reinaldo Antônio Gomes Marques, and Deive Ciro de Oliveira. "Tomographic Identification and Evaluation of Pulmonary Involvement Due to SARS-CoV-2 Infection Using Artificial Intelligence and Image Segmentation Technique." In Bioengineering and Biomedical Signal and Image Processing, 405–16. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-88163-4_35.

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Revels, Jonathan W., and Achille Mileto. "CT as a Functional Imaging Technique." In Computed Tomography, 333–45. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26957-9_18.

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Di Carli, Marcelo F., Raffaele Giubbini, D. Albano, E. Milan, I. Carvajal, E. Alexanderson, Diana Paez, and Maurizio Dondi. "Technical Considerations for Cardiac PET/CT." In IAEA Atlas of Cardiac PET/CT, 1–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-64499-7_1.

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AbstractPositron emission tomography (PET) is a non-invasive imaging technique that employs positron-emitting radionuclides labelled to biological molecules. Unlike other imaging techniques, such as computer tomography (CT) and magnetic resonance imaging (MRI) that provide anatomical or structural information, PET allows obtaining unique quantitative information of important biologic processes in vivo (e.g. myocardial perfusion and metabolism, inflammation, innervation, receptor density).
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Santiago, Jonas Francisco Y. "Unconventional Imaging Techniques." In Positron Emission Tomography with Computed Tomography (PET/CT), 115–21. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05518-3_10.

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Dixon, Adrian K. "Computerised Tomography." In Investigational Techniques in Oncology, 103–23. London: Springer London, 1987. http://dx.doi.org/10.1007/978-1-4471-1434-5_6.

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Conference papers on the topic "Tomographic technique"

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Troiani, Francesco, Nadia Cherubini, Alessandro Dodaro, Franco Vittorio Frazzoli, and Romolo Remetti. "L/ILW Waste Characterisation by the ENEA Multi-Technique Gamma System SRWGA." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4730.

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The SEA Radioactive Waste Gamma Analyser (SRWGA), is the gamma assay system of the ENEA Laboratory for L/ILW Waste Characterisation, which started operating in 1996 as a simple gamma scanner and has been under a continuous improvement process to became a multi-techniques system. The SRWGA is designed for the assay of radioactive waste drums containing gamma emitting nuclides. The system operates with an XtRa (extended range) Ge coaxial detector. This is liquid nitrogen colled, and shielded by means of a lead cylinder with two collimation windows; one mixed transmission source is provided. The system allows the application of four different measuring techniques, each one with its peculiar field of application, depending on waste characteristics or measuring time: Open Geometry, Segmented Gamma Scanning (with multi-energy transmission correction), Angular Scanning and, recently, Low Resolution Emission and Transmission Tomography, as the SRWGA is now endowed with new mechanical motions systems for tomographic capabilities. Tomographic reconstructions are obtained by means of a backprojection filtered by convolution methods (for transmission tomography) and Best Likelihood Maximisation (for emission tomography). The information obtained with transmission and emission tomography allows the localisation of matrix dishomogeneities and hot spots, carrying out a strong reduction of total activity uncertainties. This work presents the experimental results obtained using certified γ sources located in known matrices.
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Caorsi, Salvatore, and Matteo Pastorino. "A stochastic tomographic technique for microwave NDE." In The ninth international symposium on nondestructive characterization of materials. AIP, 1999. http://dx.doi.org/10.1063/1.1301986.

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Kauranen, P., H. M. Hertz, and S. Svanberg. "Two-tone frequency-modulation spectroscopy for low-absorption tomographic imaging." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cmi3.

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Non-intrusive spatially resolved measurements of gas concentrations are important in fluid flow, combustion, and heat transfer research. By combining multi-angle absorption measurements with tomographic reconstruction, quantitative and spatially resolved measurements may be performed.1 Due to the low absorbance of most gaseous species in the visible wavelength region, previous attempts in optical absorption tomography have been restricted to specially selected species in order to obtain a sufficiently high signal-to-noise ratio for the tomographic reconstruction. We combine tomography with two-tone frequency modulation spectroscopy (TTFMS), a highly sensitive absorption technique, extending the possibilities for quantitative and spatially resolved measurements to a vast number of species.2 Our TTFMS experiment uses laser modulation at 647 ± 5.2 MHz and has an absorption sensitivity of 1:106. The tomographic method is demonstrated by mapping the concentration in a section of a weakly absorbing O2 gas flow, using a GaAlAs diode laser operating around 760 nm.
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Vignoli, G., and L. Zanzi. "Focusing Inversion Technique Applied to Radar Tomographic Data." In Near Surface 2005 - 11th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2005. http://dx.doi.org/10.3997/2214-4609-pdb.13.b017.

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Marchisio, M., L. D‘Onofrio, and E. Forlani. "SST - A Tomographic VSP Technique for Geomechanical Applications." In 1st EEGS Meeting. European Association of Geoscientists & Engineers, 1995. http://dx.doi.org/10.3997/2214-4609.201407522.

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Lin, Kang-Ping, and Sung-Cheng Huang. "Elastic mapping technique for intersubject tomographic image registration." In Visual Communications and Image Processing '95, edited by Lance T. Wu. SPIE, 1995. http://dx.doi.org/10.1117/12.206800.

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Bessonov, V. B., and A. Kislov. "Correction of ring artifacts during tomographic reconstruction." In 6TH INTERNATIONAL CONFERENCE ON X-RAY, ELECTROVACUUM AND BIOMEDICAL TECHNIQUE. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0020741.

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El-Sherbiny, S. M., E. M. Saad, and M. A. A. El-Dosoky. "An optimum design of continuous-wave ultrasonic tomographic technique." In Proceedings of the Twenty-First National Radio Science Conference. IEEE, 2004. http://dx.doi.org/10.1109/nrsc.2004.239923.

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Chang Zhang, Qiang Yang, and Yingning Dong. "MIMO radar signal processing based on tomographic imaging technique." In 2014 International Radar Conference (Radar). IEEE, 2014. http://dx.doi.org/10.1109/radar.2014.7060301.

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Rui, Diao, and Zhao Shengtian. "Near Surface Data Constrained Velocity Model Tomographic Inversion Technique." In Near Surface Geophysics Asia Pacific Conference, Beijing, China 17-19 July 2013. Society of Exploration Geophysicists, Australian Society of Exploration Geophysicists, Chinese Geophysical Society, Korean Society of Earth and Exploration Geophysicists, and Society of Exploration Geophysicists of Japan, 2013. http://dx.doi.org/10.1190/nsgapc2013-121.

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Reports on the topic "Tomographic technique"

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Monnig, C. A., K. A. Marshall, G. D. Rayson, and G. M. Hieftje. Tomographic Image Reconstruction Techniques for Spectroscopic Sources: Theory and Computer Simulations. Fort Belvoir, VA: Defense Technical Information Center, July 1988. http://dx.doi.org/10.21236/ada198213.

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Romero, Jr., Arturo Espejo. Application of seismic tomographic techniques in the investigation of geothermal systems. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/97342.

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New, B. M. A seismic transmission tomography technique for rock quality evaluation. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/123616.

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Kuettner, Lindsey Ann. Diffraction Contrast Tomography: A Novel 3D Polycrystalline Grain Imaging Technique. Office of Scientific and Technical Information (OSTI), June 2017. http://dx.doi.org/10.2172/1363729.

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Shin, Jun Seob. Novel techniques for image quality enhancement in ultrasound imaging tomography. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1215813.

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Aufderheide, M. B., D. M. Goodman, J. A. Jackson, and E. M. Johansson. Image recovery techniques for x-ray computed tomography in limited data environments. Office of Scientific and Technical Information (OSTI), March 1999. http://dx.doi.org/10.2172/11988.

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Crandall, Dustin, Johnathan Moore, Rebecca Rodriguez, Magdalena Gill, Daniel Soeder, Dustin McIntyre, and Sarah Brown. Characterization of the Martinsburg Formation using Computed Tomography and Geophysical Logging Techniques. Office of Scientific and Technical Information (OSTI), March 2017. http://dx.doi.org/10.2172/1841736.

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Kuhl, D. E. New techniques for positron emission tomography in the study of human neurological disorders. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10154585.

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Kuhl, D. E. New techniques for positron emission tomography in the study of human neurological disorders. Office of Scientific and Technical Information (OSTI), January 1993. http://dx.doi.org/10.2172/6467222.

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Kuhl, D. E. New techniques for positron emission tomography in the study of human neurological disorders. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/5176116.

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