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376 results on '"Shin, Yong Sam"'

9. Reproducibility for carotid wall segmentation using T1-weighted DANTE-SPACE sequence on high-resolution 3-T carotid MRI.

Author

Won, So Yeon, Lee, Kijeong, Shin, Ilah, Choi, Hyun Seok, Choi, Jai Ho, Kim, Bum-Soo, and Shin, Yong Sam

Subjects
TRANSIENT ischemic attack, INTERNAL carotid artery, CAROTID artery stenosis, MAGNETIC resonance imaging, ISCHEMIC stroke
Abstract

Background: T1-weighted (T1W) magnetic resonance imaging (MRI) using the delay alternating with nutation for excitation-sampling perfection with application-optimized contrasts using different flip angle evolution (DANTE-SPACE) is the preferred imaging technique for evaluation of the vessel wall. Purpose: To evaluate the intra- and inter-rater reproducibility of carotid wall segmentation on T1W DANTE-SPACE in patients with symptomatic (acute stroke or transient ischemic attack) internal carotid artery (ICA) stenosis. Material and Methods: This prospective study included 25 patients with acute (≤3 months) stroke or transient ischemic attack and 50%–99% stenosis of the ICA. All patients underwent 3.0-T high-resolution carotid MRI. Two radiologists independently performed the manual segmentation of the vessel wall and inner lumen of the bilateral carotid artery on DANTE-SPACE. The intraclass correlation coefficient (ICC), Dice similarity coefficient (DSC), and Hausdorff distance (HD) were calculated. Results: The ICCs for intra-rater reproducibility of carotid wall volume, inner lumen volume, and normalized wall index were 0.965, 0.990, and 0.962, respectively. The ICCs for inter-rater reproducibility of carotid wall volume, inner lumen, and normalized wall index were 0.856, 0.981, and 0.904. DSC and HD for intra- and inter-rater reproducibility of carotid wall segmentation were as follows: 0.873 and 0.809 (DSC); and 0.079 and 0.118 (HD), respectively. For evaluation of reproducibility only in the carotid artery with symptomatic stenosis, the ICCs for intra- and inter-rater reproducibility indicated all perfect agreement. Conclusion: T1W DANTE-SPACE is a reproducible sequence for evaluation of the carotid wall using carotid MRI in patients with symptomatic ICA stenosis. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Prediction of Neurological Deterioration of Patients with Mild Traumatic Brain Injury Using Machine Learning

Author

Caracol, Gem Ralph, Choi, Jin-gyu, Park, Jae-Sung, Son, Byung-chul, Jeon, Sin-soo, Lee, Kwan-Sung, Shin, Yong Sam, Hwang, Dae-joon, Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, and Nguyen, Hien, editor

Published
2019
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