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.

引用

页码：275 / 280

页数：6

共 16 条

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