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CT를 이용한 비석회화 죽상경화반의 측정에 있어서 내강의 조영 정도가 미치는 영향에 대한 실험적 연구: T1 강조 자기공명영상과의 비교

Other Titles
 The Effect of the Degree of Luminal Contrast-Enhancement on CT Measurement of Plaque Size: A Comparison with T1-weighted Magnetic Resonance Imaging 
 Byoung Wook Choi  ;  Jin Hur  ;  Hye-Jeong Lee  ;  Young Jin Kim  ;  Tae Hoon Kim  ;  Kyu Ok Choe 
 Journal of the Korean Society of Radiology, Vol.63(4) : 329-337, 2010 
Journal Title
 Journal of the Korean Society of Radiology 
Issue Date
Atherosclerosis ; Tomography, X-Ray Computed ; Magnetic Resonance Imaging ; Aorta, Coronary Diseases ; Rabbits
PURPOSE: We studied early and delayed contrast-enhanced CT to determine the effects of the degree of luminal enhancement on the measurement of plaque size compared to T1-weighted MRI. MATERIALS AND METHODS: T1-weighted MRI and a two-phase contrast-enhanced CT was performed in 5 New Zealand white rabbits with atherosclerosis. Early-phase images were acquired during an expected peak enhancement period of the lumen; delayed-phase images were acquired 240 sec after administration of the contrast media. Anteroposterior and lateral luminal diameters (APD, LD), luminal area (LA), total vessel area (TVA), and plaque area (PA) of the aorta were measured on MRI and CT, respectively and compared to each other. RESULTS: A total of 78 slices of the aorta were analyzed. PA, measured on T1-weighted MR images, was significantly greater than PA for both early-phase and delayed-phase CT (p < 0.001). The mean difference in PA was 12.13 +/- 5.52 mm2 (p < 0.001), 11.51 +/- 4.37 mm2 (p < 0.001), -0.62 +/- 3.87 mm2 (p = 0.159) for MRI vs. early-phase CT, MRI vs. delayed-phase CT, and early-phase CT vs. delayed-phase CT, respectively. CONCLUSION: Different luminal densities by contrast enhancement do not affect the CT measurement of plaque area for the detection of obstructive coronary artery disease
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Young Jin(김영진) ORCID logo https://orcid.org/0000-0002-6235-6550
Kim, Tae Hoon(김태훈) ORCID logo https://orcid.org/0000-0003-3598-2529
Lee, Hye Jeong(이혜정) ORCID logo https://orcid.org/0000-0003-4349-9174
Choe, Kyu Ok(최규옥)
Choi, Byoung Wook(최병욱) ORCID logo https://orcid.org/0000-0002-8873-5444
Hur, Jin(허진) ORCID logo https://orcid.org/0000-0002-8651-6571
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