REDUCTION OF ARTIFACTS FROM BREATHING AND PERISTALSIS IN PHASE-CONTRAST MRA OF THE CHEST AND ABDOMEN

被引：7

作者：

DUMOULIN, CL

STEINBERG, FL

YUCEL, EK

DARROW, RD

机构：

[1] ROXAN RADIOL GRP,BEVERLY HILLS,CA

[2] MASSACHUSETTS GEN HOSP,DEPT RADIOL,BOSTON,MA 02114

来源：

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY | 1993年 / 17卷 / 02期

关键词：

ARTIFACTS; MAGNETIC RESONANCE ANGIOGRAPHY; MAGNETIC RESONANCE IMAGING; TECHNIQUES; CHEST; ABDOMEN;

D O I：

10.1097/00004728-199303000-00031

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：

Strategies for the acquisition of temporally resolved phase-contrast angiography are described and demonstrated. Projections are acquired through the entire thickness of the subject permitting excitation geometries to be independent of image orientation. Minimal delays are used between the acquisition of oppositely flow-encoded data resulting in fewer artifacts from movement of nominally stationary tissue. A protocol that suppresses artifacts from both peristalsis and breathing is presented for the aortic arch and iliac arteries.

引用

页码：328 / 332

页数：5

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