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KMID : 0387519930030010119
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Journal of Maryknoll Hospital
1993 Volume.3 No. 1 p.119 ~ p.126
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Single Breath-Hold MR Imaging in Liver
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최순정
김성희/김선희/채유순/정춘필/김양숙
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Abstract
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Single breath-hold gradient echo images with Small Tip Angle Gradient Echo(STAGE) were evaluated in the study of liver in 16 patients(4 normal liver, 5 hepatoma, 5 cholangiocarcinoma, 1 hemangioma, and 1 cavernous transformation of portal vein).
The
authors obtained one slice of gradient echo image during single breath-hold at the level of pathology defined on conventional spin echo image. Single breath-hold gradient echo images were compared with spin echo images of image quality and
artifacts.
Single breath-hold gradient image showed improved resolution of vascular detail and excellent contrast between lesion and adjacent normal liver in hepatoma. Cholangiocarcinoma showed decreased contrast between lesion and biliary trees but improve
contrast between lesion and blood vessel. Cavernous transformation of portal vein was noted as tortuous vessel of high signal intensity.
Single breath-hold gradient echo scan increased vascular artifact, but decreased respiratory artifact leading to improved image quality.
Single breath-hold technique can reduce imaging time and improve image quality, and may be used as complementary method to spin echo scan.
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KEYWORD
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