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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.
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页码:131 / 134
页数:4
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