Relevant bibliographies by topics / Interobserver agreement study

Academic literature on the topic 'Interobserver agreement study'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Interobserver agreement study"

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Jørgensen, Tue Smith, Ylva Hellsten, Hans Gottlieb, and Stig Brorson. "Assessment of diabetic foot ulcers based on pictorial material: an interobserver study." Journal of Wound Care 29, no. 11 (November 2, 2020): 658–63. http://dx.doi.org/10.12968/jowc.2020.29.11.658.

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Objective: The frequent change in clinicians, and the emerging use of photographic documentation in wound management, could require a more diverse treatment of patients due to poor interobserver agreement. The aim of this study was to assess the interobserver agreement of a commonly used classification system for diabetic foot ulcers (DFUs), the Meggitt–Wagner classification, and to compare the agreement on classification with the agreement in treatment recommendations. Method: An interobserver study was conducted based on a questionnaire linked to 30 photographs of DFUs. Different groups of observers were tested to investigate whether there was a difference between professions or level of education: experienced orthopaedic wound care doctors (n=7); nurses specialised in wound care (n=8) and untrained nurses assigned to a diabetic wound care training course (n=23). Krippendorff's alpha was used to calculate interobserver agreement, and an agreement of >0.67 was defined as substantial. Results: The Krippendorff's alpha value for interobserver agreement on the Meggitt–Wagner classification was 0.52 for the doctors group, 0.67 for the specialised nurses and 0.61 for the untrained nurses. The corresponding values regarding agreement on recommendation of surgical revision of the wound were 0.35, 0.22 and 0.15, respectively. The choice of dressing type or antibiotic treatment had even lower interobserver agreement. Conclusions: The interobserver agreement on the Meggitt–Wagner classification was substantial in the specialised nurse group, but the evaluation and treatment of DFUs should not be exclusively based on pictorial materials.
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Pedersen, Malene Roland Vils, Peter Obel Otto, Chris Vagn-Hansen, Torben Sørensen, and Søren Rafael Rafaelsen. "Interobserver Reliability and the Sigmoid Takeoff—An Interobserver Study." Cancers 14, no. 11 (June 4, 2022): 2802. http://dx.doi.org/10.3390/cancers14112802.

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Background: Colorectal cancer is the second most common cancer worldwide. The sigmoid takeoff is the landmark where the colon sigmoid curves toward the sacrum viewed from sagittal magnetic resonance imaging (MRI). The purpose of this study was to assess interobserver variability in the assessment of the anal verge and anorectal junction in patients diagnosed with rectal cancer on magnetic resonance imaging (MRI). Materials and Methods: The rectal MRI examinations were performed using a 1.5- or 3.0-tesla unit using an anterior coil and a standard scan protocol. Two senior radiologists assessed MRI scans from patients under investigation for rectal cancer. The two observers assessed the anal verge and takeoff in cm independently. Difference in agreement between the observers were evaluated using intraclass correlation (ICC) and graphically by Bland–Altman plots. Results: The study population (n = 122) included 68 (55.7%) female and 54 (44.3%) male subjects. The overall median age was 69.5 years (range 39–95 years). There was perfect agreement between the two observers when defining rectal tumor above or below the takeoff landmark. The reliability of measuring the distance from the anal verge to the sigmoid takeoff was 0.712. Conclusion: Overall, the study found a moderate reliability in assessing the location of the sigmoid takeoff, with a low difference in the distance measuring, as well as a good consensus concerning the determination of tumors in relation to the sigmoid takeoff. Routine implementation of this information within the report seems reasonable.
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Geijer, M., G. Gadeholt Göthlin, and J. H. Göthlin. "Observer variation in computed tomography of the sacroiliac joints: a retrospective analysis of 1383 cases." Acta Radiologica 48, no. 6 (July 2007): 665–71. http://dx.doi.org/10.1080/02841850701342146.

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Background: Computed tomography (CT) for evaluation of sacroiliitis has a higher diagnostic accuracy than radiography. There is a high degree of interobserver variation in evaluating sacroiliitis on radiographs. Purpose: To evaluate interobserver variation in CT of the sacroiliac joints for evaluation of sacroiliitis in a large number of patients. Material and Methods: 1383 CT examinations of the sacroiliac joints were reviewed by two observers. The outcomes as originally reported and the findings from the reviews were classified as no sacroiliitis, equivocal, unilateral sacroiliitis, or bilateral sacroiliitis. The unweighted kappa statistic was used for assessment of observer agreement. Results: The interobserver agreement between the two reviewers was good (κ = 0.6724), with excellent agreement on cases of bilateral sacroiliitis and moderate agreement on cases of unilateral sacroiliitis. Excellent agreement was also reached in normal cases. Compared to the original reports, there were moderate interobserver agreements between both reviewers' findings and the original reports (κ = 0.4651 and κ = 0.4481, respectively). Conclusion: The interobserver variation for the diagnosis of sacroiliitis on CT between two reviewers in a study setting showed good agreement, with moderate agreement between each of the observers and the original clinical reports. CT is a reliable method for evaluating the sacroiliac joints for changes of sacroiliitis.
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Puente, José M., Juan L. Alcazar, Pilar Martinez-Ten, Carmina Bermejo, María T. Troncoso, and Juan A. García-Velasco. "Interobserver Agreement in the Study of 2D and 3D Sonographic Criteria for Adenomyosis." Journal of Endometriosis and Pelvic Pain Disorders 9, no. 3 (May 7, 2017): 211–15. http://dx.doi.org/10.5301/jeppd.5000295.

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Objective To study the degree of interobserver agreement for already known two-dimensional (2D) and three-dimensional (3D) sonography criteria of adenomyosis. Methods Fifty cases (25 adenomyosis cases, 25 non-adenomyosis cases) were studied by four expert observers and a less-experienced researcher. Each sonographic adenomyosis criterion was separately studied. Interobserver agreement was analysed by the kappa index with 95% confidence interval (CI). Results The degree of agreement about diagnosing adenomyosis was high or very high in all pair-wise comparisons (kappa values of 0.58–0–92). The agreement on identifying intra-myometrial cysts (kappa values of 0.46–0.79) and evaluating the junctional zone (JZ) by 3D-transvaginal ultrasound (3D-TVS) (kappa index of 0.46–0.88) was good. The agreements reached when evaluating the other criteria varied, but good agreement was generally reached. Conclusions Both the 2D-TVS and 3D-TVS criteria employed in diagnosing adenomyosis were reproducible parameters in adenomyosis diagnostics. The results were reproducible, even by a less experienced observer.
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Guarnizo, Angela, Thanh B. Nguyen, Rafael Glikstein, and Nader Zakhari. "Computed tomography assessment of anterior ethmoidal canal dehiscence: An interobserver agreement study and review of the literature." Neuroradiology Journal 33, no. 2 (March 2, 2020): 145–51. http://dx.doi.org/10.1177/1971400920908524.

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Purpose The anterior ethmoidal artery can be injured in functional endoscopic sinus surgery. The ability of computed tomography (CT) to identify dehiscence of the anterior ethmoidal canal (AEC) has not been widely evaluated. The aim of this study was to evaluate the interobserver agreement in the CT assessment of AEC dehiscence. Methods We conducted a retrospective review of consecutive CT scans of the paranasal sinuses (PNS) between January 1, 2012, and December 31, 2012. Two neuroradiologists separately assessed the presence of AEC dehiscence, the presence of PNS opacification, and the best CT plane to evaluate the AEC. Statistical analysis included descriptive analysis and interobserver agreement (kappa coefficient). Results The AEC was below the skull base in 199 (22.3%) cases. Dehiscence of the AEC was found in 13.2% for reader 1 and in 7.3% for reader 2. The interobserver agreement for identification of AEC dehiscence was only fair (κ = 0.246). The interobserver agreement for the AEC dehiscence in cases with opacification of ethmoidal air cells was substantial (κ = 0.754). Conclusion The suboptimal interobserver agreement could potentially limit the usefulness of CT scans for routine assessment of AEC dehiscence. In patients with PNS opacification, CT scans could still add valuable information regarding AEC dehiscence.
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Osmond, Allison, Hector Li-Chang, Richard Kirsch, Dimitrios Divaris, Vincent Falck, Dong Feng Liu, Celia Marginean, et al. "Interobserver variability in assessing dysplasia and architecture in colorectal adenomas: a multicentre Canadian study." Journal of Clinical Pathology 67, no. 9 (July 8, 2014): 781–86. http://dx.doi.org/10.1136/jclinpath-2014-202177.

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AimsFollowing the introduction of colorectal cancer screening programmes throughout Canada, it became necessary to standardise the diagnosis of colorectal adenomas. Canadian guidelines for standardised reporting of adenomas were developed in 2011. The aims of the present study were (a) to assess interobserver variability in the classification of dysplasia and architecture in adenomas and (b) to determine if interobserver variability could be improved by the adoption of criteria specified in the national guidelines.MethodsAn a priori power analysis was used to determine an adequate number of cases and participants. Twelve pathologists independently classified 40 whole-slide images of adenomas according to architecture and dysplasia grade. Following a wash-out period, participants were provided with the national guidelines and asked to reclassify the study set.ResultsAt baseline, there was moderate interobserver agreement for architecture (K=0.4700; 95% CI 0.4427 to 0.4972) and dysplasia grade (K=0.5680; 95% CI 0.5299 to 0.6062). Following distribution of the guidelines, there was improved interobserver agreement in assessing architecture (K=0.5403; 95% CI 0.5133 to 0.5674)). For dysplasia grade, overall interobserver agreement remained moderate but decreased significantly (K=0.4833; 95% CI 0.4452 to 0.5215). Half of the cases contained high-grade dysplasia (HGD). Two pathologists diagnosed HGD in ≥75% of cases.ConclusionsThe improvement in interobserver agreement in classifying adenoma architecture suggests that national guidelines can be useful in disseminating knowledge, however, the variability in the diagnosis of HGD, even following guideline review suggests the need for ongoing knowledge-transfer exercises.
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PILLAI, PB, GS SAIPRASAD, DR BASANNAR, and AG GOKARN. "STUDY ON INTEROBSERVER AGREEMENT IN A GOITRE PREVALENCE SURVEY." Medical Journal Armed Forces India 51, no. 2 (April 1995): 95–99. http://dx.doi.org/10.1016/s0377-1237(17)30937-1.

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Kumar, Padam, Richard A. Hillesheim, Jeffrey R. Sawyer, James H. Beaty, David D. Spence, William C. Warner Jr., Benjamin W. Sheffer, and Derek M. Kelly. "Pediatric Femoral Shaft Fracture Classification: An Intraobserver and Interobserver Reliability Study." Journal of the Pediatric Orthopaedic Society of North America 4, no. 2 (May 1, 2022): 1–9. http://dx.doi.org/10.55275/jposna-2022-0036.

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Purpose: Fracture stability is important in choosing the optimal treatment for pediatric femoral fractures, although there is no consensus for characterizing a fracture as “stable” or “unstable.” The authors sought to measure interobserver and intraobserver reliability in classifying femoral fracture stability and examined the relationship between fracture ratio and perceived fracture stability and morphology. Methods: Fracture ratios were calculated from anteroposterior and lateral radiographs from 65 children aged 5 to 12 years, who were treated for femoral shaft fractures at a level 1 pediatric trauma center. Deidentified radiographs were placed into a PowerPoint presentation in random order and were shown to six fellowship-trained pediatric orthopaedic surgeons at two time points, 4 months apart. Raters classified stability as “stable/unstable” and morphology as “spiral/oblique/transverse.” Cohen and Fleiss kappa (k) values were calculated to determine intraobserver and interobserver reliability. Generalized linear modeling was used to compare FR to rater fracture stability and morphology. Results: The mean k for fracture stability for all raters was 0.68 (strong intraobserver agreement). The k for fracture stability during Round 1 was 0.53 (67.7% interobserver agreement, moderate). The k for fracture stability during Round 2 was 0.68 (75.4% interobserver agreement, strong). The mean k for fracture morphology for all raters was 0.79 (strong intraobserver agreement). The k for fracture morphology during Round 1 was 0.38 (15.4% agreement, fair). The k for fracture morphology during Round 2 was 0.46 (24.6% agreement, moderate). The average anteroposterior ratio in stable fractures was 1.32 compared with 1.78 in unstable fractures (P < 0.001). The average lateral ratio in stable fractures was 1.34 compared with 2.10 in unstable fractures (P < 0.001). Average anteroposterior and lateral ratios were highest in spiral fractures and lowest in transverse fractures (P < 0.003). Conclusions: Raters demonstrated strong intraobserver and interobserver agreement in classifying radiographic femoral fracture stability. Anteroposterior and lateral fracture ratios were significantly higher in unstable fractures.
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Peixoto, Carla, Maite Castro, Isabel Carriles, Maria de Arriba, Victoria Lapresa, and Juan Luis Alcazar. "Diagnosing Septate Uterus Using Three-Dimensional Ultrasound Using Three Different Classifications: An Interobserver and Intraobserver Agreement Study." Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics 43, no. 12 (December 2021): 911–18. http://dx.doi.org/10.1055/s-0041-1740271.

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Abstract Objective Currently, there are up to three different classifications for diagnosing septate uterus. The interobserver agreement among them has been poorly assessed. Objective To assess the interobserver agreement of nonexpert sonographers for classifying septate uterus using the European Society of Human Reproduction and Embryology/European Society for Gynaecological Endoscopy (ESHRE/ESGE), American Society for Reproductive Medicine (ASRM), and Congenital Uterine Malformations by Experts (CUME) classifications. Methods A total of 50 three-dimensional (3D) volumes of a nonconsecutive series of women with suspected uterine malformation were used. Two nonexpert examiners evaluated a single 3D volume of the uterus of each woman, blinded to each other. The following measurements were performed: indentation depth, indentation angle, uterine fundal wall thickness, external fundal indentation, and indentation-to-wall-thickness (I:WT) ratio. Each observer had to assign a diagnosis in each case, according to the three classification systems (ESHRE/ESGE, ASRM, and CUME). The interobserver agreement regarding the ESHRE/ESGE, ASRM, and CUME classifications was assessed using the Cohen weighted kappa index (k). Agreement regarding the three classifications (ASRM versus ESHRE/ESGE, ASRM versus CUME, ESHRE/ESGE versus CUME) was also assessed. Results The interobserver agreement between the 2 nonexpert examiners was good for the ESHRE/ESGE (k = 0.74; 95% confidence interval [CI]: 0.55–0.92) and very good for the ASRM and CUME classification systems (k = 0.95; 95%CI: 0.86–1.00; and k = 0.91; 95%CI: 0.79–1.00, respectively). Agreement between the ESHRE/ESGE and ASRM classifications was moderate for both examiners. Agreement between the ESHRE/ESGE and CUME classifications was moderate for examiner 1 and good for examiner 2. Agreement between the ASRM and CUME classifications was good for both examiners. Conclusion The three classifications have good (ESHRE/ESGE) or very good (ASRM and CUME) interobserver agreement. Agreement between the ASRM and CUME classifications was higher than that for the ESHRE/ESGE and ASRM and ESHRE/ESGE and CUME classifications.
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Kearns, Kevin P., and Nina N. Simmons. "Interobserver Reliability and Perceptual Ratings." Journal of Speech, Language, and Hearing Research 31, no. 1 (March 1988): 131–36. http://dx.doi.org/10.1044/jshr.3101.131.

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The purpose of this study was to examine the reliability of ratings of perceptual characteristics for 10 ataxic dysarthric subjects. The influence of the occurrence of "deviant" speech parameters on the calculation of reliability coefficients was also explored. Results indicated that overall interobserver agreement levels for minimally trained judges compared favorably to reliability coefficients reported in previous studies. Furthermore, levels of overall agreement were above levels of agreement expected on the basis of chance alone. In contrast to overall interobserver agreement, much lower levels of interobserver agreement were obtained when "occurrence Reliability" coefficients were calculated for deviant dimensions alone. However, occurrence reliability coefficients surpassed the level of agreement expected on the basis of chance alone for all subjects. Based on the results of this investigation, recommendations are made for modifying standard practices for obtaining interobserver reliability for perceptual ratings of speech characteristics.
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Dissertations / Theses on the topic "Interobserver agreement study"

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Cunningham, Isabel L. "The Development of a Three Minute Realtime Sampling Method to Measure Social Harmony during Interactions between Parents and their Toddlers with Autism." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1248433/.

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Training parents of a child with autism to increase the frequency of their child's social behavior may improve the quality of parent-child interactions. The purpose of this methodological study was to develop a direct observation method for rapidly sampling social harmony between parents and their toddlers with autism during parent training interactions. The current study used a pre and post probe design, with benchmark comparisons to test the discriminability of the measurement protocol across two sets of data. The first set of data came from pre and post training videos from a parent training program for children with a diagnosis of autism or at risk for a diagnosis. The second set of data came from videos of typically developing toddlers and their parents. The results of the study show that the measurement system differentiated in the level of harmonious engagement between the benchmark sample and the sample including children diagnosed with autism. The results are discussed in the context of future directions and the utility of the measurement system for behavior analytic practices in parent training and other settings where rapport and complex interactional behaviors are an intervention priority.
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Conference papers on the topic "Interobserver agreement study"

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Fabbri, C., G. Gibiino, C. Binda, M. Sbrancia, A. Anderloni, P. Cecinato, A. Lisotti, et al. "INTEROBSERVER AGREEMENT OF ENDOSCOPIC ULTRASOUND ASSESSMENT AND MANAGEMENT OF PANCREATIC FLUID COLLECTIONS (PFCS) - AN INTERNATIONAL STUDY." In ESGE Days. © Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1704177.

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