Automated detection of bolus arrival and initiation of data acquisition in fast, three-dimensional, gadolinium-enhanced MR angiography

被引：210
作者：
Foo, TKF
Saranathan, M
Prince, MR
Chenevert, TL
机构：
[1] UNIV WASHINGTON,DEPT BIOMED ENGN,SEATTLE,WA 98195
[2] UNIV MICHIGAN,DEPT RADIOL,ANN ARBOR,MI 48109
来源：
RADIOLOGY | 1997年 / 203卷 / 01期
关键词：
magnetic resonance (MR); contrast enhancement; three-dimensional; vascular studies;
D O I：
10.1148/radiology.203.1.9122407
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：
Automatic triggering of magnetic resonance (MR) angiography with detection of a contrast material bolus was evaluated. Signal intensity changes with time were tracked in a prescribed tracking or monitoring volume by a parallel signal processing unit that automatically started data acquisition once user-defined thresholds were exceeded. This technique, referred to as MR Smartprep, was reliable and avoided the inconsistencies of manual timing.
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收藏
页码：275 / 280
页数：6
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