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RISS 인기검색어
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- 저자 : 선종백(Jong Baek Seon) (검색결과 2 건)
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검진센터를 방문한 성인에서 64-MDCT를 이용한 뇌동맥 관상동맥 질환의 발견율에 대한 고찰
범희남(Hui Nam Beom),최연상(Yeon Sang Choi),선종백(Jong Baek Seon),최성관(Seong Gwan Choi),이규수(Kyu Soo Lee) 대한CT영상기술학회 2008 대한CT영상기술학회지 Vol.10 No.1
Purpose To evaluate the detection rate of cerebrovascular and coronary artery disease (CAD), which were major cause of sudden death, on the population visiting health screening center using 64-channel multi-detector computed tomography (MDCT) and evaluate the usefulness of MDCT on health screening. Materials and methods 730 patients (M:F=531:199) were included in this study. Simultaneously, they underwent cerebral and coronary MDCT for health screening, MDCT was performed with 64-channel MDCT (Light Speed VCT, GE Health Care, USA) using 0.625mm of slice thickness and 0.35~0.5sec of tube rotation time. Data analysis was based on reading paper. We evaluated the detection rate of cerebrovascular disease including intracerebral aneurysm, steno-occlusive disease, brain tumor and coronary artery disease including presence of calcific plaque and stenotic luminal narrowing of coronary artery. Results The evaluated detection rate of cerebrovascular disease on health screening MDCT was 5.6% (41/730) including 34 patients (82.9%) with intracerebral aneurysm Among these, posterior communicating artery (P-com) aneurym was most commonly detected 18 patient (43.9%). In terms of corona1y artery disease, 217 paitents (29.7%) had calcific plaque and 47 patients (6.4%) had stenotic intravascular luminal narrowing of coronary artery. 14 of 217 patients (6.5%) had calcific plaque was classified into high(>400 calcium score) risk group of CAD. 19 of 47 patients (40.4%) had significant intravascular luminal narrowing was recommended coronary angiography for interventional treatment. Conclusion Cerebrovascular and coronary MDCT is expected to useful diagnostic tool for health screening because that can be used to classify the high risk group of cerebrovascular and coronary artery disease with sudden death potential.
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김창곤(Chang Kon Kim),허재윤(Jae Yun Heo),고창수(Chang Su Ko),범희남(Hee Nam Bum),선종백(Jong Baek Seon) 대한CT영상기술학회 2009 대한CT영상기술학회지 Vol.11 No.1
Purpose This study was to survey contrast media washout time in right atrium(RA) using time bolus and saline push method. And, we have compared routine injection with changed injection method in order to obtain the excellent images without streak artifacts at cardiac computed tomographic angiography(CTA). Materials and methods We have inspected 50 people those who had scanned CT during November, 2008. After preparing intravenous route in medial-cubital vein at elbow joint of right side, we had performed the test bolus at the ascending aorta. We attained enhance peak time and injected the combination of contrast media(CM) and saline(CM: 60cc, 4cc/sec ; saline: 50cc, 5cc/sec). Then we acquired contrast media washout time in RA to below 300HU. We have selected 45 people those who had scanned cardiac CTA between October to November 2005. We divided them to 3 groups(group A: CM 70cc, 4.0/sec ; saline 30cc, 4.0/sec, group B: CM 75cc, 4.0/sec ; saline 30cc, 4.0/sec, group C: CM 80cc, 4.0/sec ; saline 30cc, 4.0/sec) and evaluated in the quantitative and qualitative way. We have performed 50 people those who had scanned cardiac CTA using changed volume method(group D) and evaluated in and qualitative way during January, 2009. Results 1. At the time curve coordinates against HU of RA, contrast media washout time takes 23sec in 15 and takes 24sec in 35 people to below 300HU. It means that takes about 9sec after injection contrast media. 2. Group D is superior to other groups(A, B, C) in the quantitative way. 3. Group D is superior to other groups(A, B, C) in the qualitative way. Conclusion According to the results contrast media washout time has regularity and changed volume method helped to obtain excellent image without streak artifacts.
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