3-DIMENSIONAL BLACK BLOOD MR-ANGIOGRAPHY OF THE LIVER DURING BREATH-HOLDING - A COMPARISON WITH 2-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY

被引:0
|
作者
SUTO, Y [1 ]
OHUCHI, Y [1 ]
KIMURA, T [1 ]
SHIRAKAWA, T [1 ]
MIZUUCHI, N [1 ]
TAKIZAWA, O [1 ]
YAMANE, T [1 ]
KAMBA, M [1 ]
MORIYAMA, S [1 ]
OHTA, Y [1 ]
机构
[1] SIEMENS ASAHI MED TECHNOL LTD,TOKYO,JAPAN
关键词
MR; VASCULAR STUDIES; COMPARATIVE STUDIES; 3-DIMENSIONAL; LIVER; PORTAL VEIN;
D O I
暂无
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
In 2-D time-of-flight MR angiography (2-D TOF MRA) of the liver, artifacts caused by respiratory motion are unavoidable. Therefore, a 3-D black blood MRA of the liver was attempted in 7 healthy volunteers, using a 3-D gradient echo sequence which allows imaging during breath holding. 2-D TOF MRA was performed as well. In all subjects, 3-D MRA allowed visualization of the trunk, 1st-, and 2nd-order branches of the portal vein without interruption. Right 3rd-order branches were visualized without interruption in 6 of 7 subjects (85%). However, with 2-D MRA, the transverse portion of the left main portal vein could not be visualized in any subject, and the periphery of the portal vein was less clear than with 3-D MRA.
引用
收藏
页码:131 / 134
页数:4
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