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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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국회도서관 홈으로 정보검색 소장정보 검색
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Purpose: To investigate the diagnostic criteria of T1-weighted imaging (T1W) and time-of-flight (TOF) imaging for detecting intraplaque hemorrhage (IPH) of a vertebrobasilar artery (VBA) compared with simultaneous non-contrast angiography and intraplaque hemorrhage (SNAP) imaging.

Materials and Methods: Eighty-seven patients with VBA atherosclerosis who underwent high resolution MR imaging for evaluation of VBA plaque were reviewed. The presence and location of VBA plaque and IPH on SNAP were determined. The signal intensity (SI) of the VBA plaque on T1W and TOF imaging was manually measured and the SI ratio against adjacent muscles was calculated. The receiver-operating characteristic (ROC) curve was used to compare the diagnostic accuracy for detecting VBA IPH.

Results: Of 87 patients, 67 had IPH and 20 had no IPH on SNAP. The SI ratio between VBA IPH and temporalis muscle on T1W was significantly higher than that in the no-IPH group (235.9 ± 16.8 vs. 120.0 ± 5.1, P < 0.001). The SI ratio between IPH and temporalis muscle on TOF was also significantly higher than that in the no-IPH group (236.8 ± 13.3 vs. 112.8 ± 7.4, P < 0.001). Diagnostic efficacies of SI ratios on TOF and TIW were excellent (AUC: 0.976 on TOF and 0.964 on T1W; cutoff value: 136.7% for TOF imaging and 135.1% for T1W imaging).

Conclusion: Compared with SNAP, cutoff levels of the SI ratio between VBA plaque and temporalis muscle on T1W and TOF imaging for detecting IPH were approximately 1.35 times.

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Advances in fast vessel-wall magnetic resonance imaging using high-density coil array Xuetong Yin, Nan Li, Sen Jia, Xiaoliang Zhang, Ye Li p. 229-251

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Accelerating magnetic resonance fingerprinting using hybrid deep learning and iterative reconstruction Peng Cao, Di Cui, Yanzhen Ming, Varut Vardhanabhuti, Elaine Lee, Edward Hui p. 293-299

DEMO : deep MR parametric mapping with unsupervised multi-tasking framework Jing Cheng, Yuanyuan Liu, Yanjie Zhu, Dong Liang p. 300-312

Diagnostic image feature and performance of CT and gadoxetic acid disodium-enhanced MRI in distinction of combined hepatocellular-cholangiocarcinoma from hepatocellular carcinoma Hyunghu Kim, Seung-seob Kim, Sunyoung Lee, Myeongjee Lee, Myeong-Jin Kim p. 313-322

Diagnostic criteria of T1-weighted imaging for detecting intraplaque hemorrhage of vertebrobasilar artery based on simultaneous non-contrast angiography and intraplaque hemorrhage imaging Sukjoon Lim, Nam Hyeok Kim, Hyo Sung Kwak, Seung Bae Hwang, Gyung Ho Chung p. 323-331

Cardiac Behçet's disease presenting with right ventricular endomyocardial fibrosis and intracardiac thrombosis : a case report Eun Ji Choi, Min Sun Kim, Hyun Jung Koo, Jae-Kwan Song, Joo Seon Song, Joon-Won Kang, Dong Hyun Yang p. 332-337

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