CHRONIC MESENTERIC ISCHEMIA - EVALUATION WITH PHASE-CONTRAST CINE MR-IMAGING

被引:63
作者
LI, KCP
WHITNEY, WS
MCDONNELL, CH
FREDRICKSON, JO
PELC, NJ
DALMAN, RL
JEFFREY, RB
机构
[1] STANFORD UNIV,SCH MED,DEPT RADIOL,STANFORD,CA 94305
[2] STANFORD UNIV,SCH MED,DEPT SURG,STANFORD,CA 94305
关键词
ARTERIES; MESENTERIC; BLOOD; FLOW DYNAMICS; INTESTINES; ISCHEMIA; MAGNETIC RESONANCE; PHASE IMAGING; VASCULAR STUDIES;
D O I
10.1148/radiology.190.1.8259400
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PURPOSE: To compare superior mesenteric artery (SMA) blood flow in healthy volunteers and patients with stenoses in the fasting state and after food intake by using phase-contrast (PC) cine magnetic resonance (MR) imaging. MATERIALS AND METHODS: Ten healthy subjects, four asymptomatic patients (three with 50% stenosis, one with 70% stenosis), and one symptomatic patient (with 80% stenosis) were studied. All subjects were studied after fasting at least 8 hours and 15, 30, and 45 minutes after ingesting a standard meal. RESULTS: In healthy volunteers, SMA blood flow at all postprandial intervals increased significantly compared with that obtained after fasting (P less than or equal to.0005). The percentage change in SMA blood flow 30 minutes after food intake provided the best distinction between the healthy subjects, the asymptomatic patients, and the symptomatic patient. CONCLUSION: Cine PC MR imaging is an effective, noninvasive technique for measuring SMA blood flow.
引用
收藏
页码:175 / 179
页数:5
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