The Experts below are selected from a list of 15651 Experts worldwide ranked by ideXlab platform
Peter R Carroll - One of the best experts on this subject based on the ideXlab platform.
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carcinoma of the prostate gland mr imaging with pelvic phased array coils versus integrated endorectal pelvic phased array coils
Radiology, 1994Co-Authors: Hedvig Hricak, Scott White, Daniel B Vigneron, John Kurhanewicz, Anne Kosco, David C Levin, Jerome M Weiss, Perinchery Narayan, Peter R CarrollAbstract:PURPOSE: To compare the performance of pelvic phased-array (PPA) coils and integrated endorectal PPA coils in evaluation of local extent of prostate cancer. MATERIALS AND METHODS: Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extension, seminal vesicle invasion, nodal involvement, and stage were compared with step-sectioned (3-4-mm intervals) whole-mounted pathologic specimens. Prospective consensus versus single-reader interpretation (Kappa Statistics) and PPA versus integrated endorectal PPA coils (McNemar test) were compared, and a rating scale of 1-6 was developed for analysis of receiver operating characteristics. Statistical significance was calculated at delta = .05. RESULTS: Comparison between consensus and single-reader image interpretation showed positive but poor agreement (Kappa = .38) and no statistical significance. Staging accuracy was better (difference approached significance) for integrated endorecta...
Hedvig Hricak - One of the best experts on this subject based on the ideXlab platform.
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carcinoma of the prostate gland mr imaging with pelvic phased array coils versus integrated endorectal pelvic phased array coils
Radiology, 1994Co-Authors: Hedvig Hricak, Scott White, Daniel B Vigneron, John Kurhanewicz, Anne Kosco, David C Levin, Jerome M Weiss, Perinchery Narayan, Peter R CarrollAbstract:PURPOSE: To compare the performance of pelvic phased-array (PPA) coils and integrated endorectal PPA coils in evaluation of local extent of prostate cancer. MATERIALS AND METHODS: Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extension, seminal vesicle invasion, nodal involvement, and stage were compared with step-sectioned (3-4-mm intervals) whole-mounted pathologic specimens. Prospective consensus versus single-reader interpretation (Kappa Statistics) and PPA versus integrated endorectal PPA coils (McNemar test) were compared, and a rating scale of 1-6 was developed for analysis of receiver operating characteristics. Statistical significance was calculated at delta = .05. RESULTS: Comparison between consensus and single-reader image interpretation showed positive but poor agreement (Kappa = .38) and no statistical significance. Staging accuracy was better (difference approached significance) for integrated endorecta...
Dieu Tien Bui - One of the best experts on this subject based on the ideXlab platform.
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identification of areas prone to flash flood phenomena using multiple criteria decision making bivariate Statistics machine learning and their ensembles
Science of The Total Environment, 2020Co-Authors: Romulus Costache, Dieu Tien BuiAbstract:Taking into account the exponential growth of the number of flash-floods events worldwide, the detection of areas prone to these natural hazards is one of the main activities taken in order to mitigate the negative effects of these risk phenomena. In the present paper, new modeling approaches, Alternating Decision Tree (ADT) integrated with IOE (ADT-IOE) and ADT integrated with AHP (ADT-AHP), were proposed for flash-flood susceptibility mapping across the Suha river catchment (Romania). Besides, two stand-alone methods, Index of Entropy (IOE) and Analytical Hierarchy Process (AHP), were also investigated. For this regard, 111 torrential points and 111 non-torrential points along with 8 flash-flood conditioning factors have been involved in the training process of the four models. The quality of the flash-flood models was checked by using the ROC Curve method, classification accuracy (CLA), and Kappa index. The result shows that the two ensemble models, the ADT-IOE (AUC = 0.972, CLC = 86.37%, Kappa Statistics = 0.727) and the ADT-AHP (AUC = 0.926, CLA = 87.88%, Kappa Statistics = 0.758), have high prediction performance and outperform the other models. Therefore, ADT-IOE and ADT-AHP are new and promising tools for flash-flood susceptibility modeling.
Gunvor Semb - One of the best experts on this subject based on the ideXlab platform.
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comparative assessment of dental arch relationships using goslon yardstick in patients with unilateral complete cleft lip and palate using dental casts two dimensional photos and three dimensional images
The Cleft Palate-Craniofacial Journal, 2012Co-Authors: Servet Dogan, Sultan Olmez, Gunvor SembAbstract:Objective: Comparison of the use of two-dimensional (2D) and three-dimensional (3D) images for rating dental arch relationships. Materials and Methods: The sample consists of pretreatment dental casts, 2D photographs, and 3D images of 70 patients with unilateral complete cleft lip and palate. Two experienced examiners used the Goslon Yardstick to rate dental arch relationships. The ratings were done three times for all groups. Weighted Kappa Statistics were used to evaluate intra- and interrater agreement and the agreement between the groups. Results: Intra- and interexaminer agreement were high for all groups (between 0.86 and 0.96), indicating very good reproducibility. The mean Goslon scores ranged between 2.84 and 2.90. Conclusion: 2D and 3D imaging of dental casts provides a valid alternative for actual study models for rating dental arch relationships.
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assessment of dental arch relationships in japanese patients with unilateral cleft lip and palate
The Cleft Palate-Craniofacial Journal, 2006Co-Authors: Takafumi Susami, Gunvor Semb, W C Shaw, Yuji Ogihara, Masako Matsuzaki, Miyuki Sakiyama, Tsuyoshi TakatoAbstract:Objective: Evaluation of the dental arch relationships of Japanese patients with unilateral cleft lip and palate (UCLP) from the orthodontic clinic of the University of Tokyo Hospital (UTH) compared with patients treated by the Oslo Cleft Team, Norway. Design: Retrospective study and comparison with previous reports. Materials: Dental models of 24 patients with UCLP in UTH taken before orthodontic treatment and before alveolar bone grafting were included. Surgeons in many hospitals performed primary surgeries. These models were matched for age and gender with 24 models from a consecutive series of patients treated by the Oslo Cleft Team as part of the Eurocran Good Practice Archive. A total of 48 models were evaluated. Main Outcome Measure: Dental arch relationship was rated with the Goslon Yardstick. The strength of agreement of rating was assessed with weighted Kappa Statistics. Results: Intra- and interexaminer agreements evaluated by weighted Kappa Statistics were high, indicating good reproducibility. Almost 60% of the patients in UTH were classified into poor or very poor categories, and the mean Goslon score was 3.50. These results show a contrast to those in Oslo and were the poorest in comparison with previous reports. Conclusion: Dental arch relationships in patients with UCLP in UTH were poor. This seemed to be attributable to surgical procedures, but a factor of racial difference in the craniofacial morphology was also considered. Further intercenter research is required to clarify this point.
David C Levin - One of the best experts on this subject based on the ideXlab platform.
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carcinoma of the prostate gland mr imaging with pelvic phased array coils versus integrated endorectal pelvic phased array coils
Radiology, 1994Co-Authors: Hedvig Hricak, Scott White, Daniel B Vigneron, John Kurhanewicz, Anne Kosco, David C Levin, Jerome M Weiss, Perinchery Narayan, Peter R CarrollAbstract:PURPOSE: To compare the performance of pelvic phased-array (PPA) coils and integrated endorectal PPA coils in evaluation of local extent of prostate cancer. MATERIALS AND METHODS: Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extension, seminal vesicle invasion, nodal involvement, and stage were compared with step-sectioned (3-4-mm intervals) whole-mounted pathologic specimens. Prospective consensus versus single-reader interpretation (Kappa Statistics) and PPA versus integrated endorectal PPA coils (McNemar test) were compared, and a rating scale of 1-6 was developed for analysis of receiver operating characteristics. Statistical significance was calculated at delta = .05. RESULTS: Comparison between consensus and single-reader image interpretation showed positive but poor agreement (Kappa = .38) and no statistical significance. Staging accuracy was better (difference approached significance) for integrated endorecta...
