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DOI:10.2214/AJR.05.0320
AJR 2007; 188:W49-W56
© American Roentgen Ray Society

Pictorial Essay

Hepatic MRI Using the Double-Echo Chemical Shift Phase-Selective Gradient-Echo Technique

Jeong-Sik Yu1, Jun-Gyun Park1, Eun-Kee Jeong1,2, Mi-Suk Park1 and Ki Whang Kim1

1 Department of Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, YongDong Severance Hospital, 146-92 Dogok-Dong, Gangnam-Gu, Seoul 135-720, South Korea.
2 Present address: Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah, Salt Lake City, UT 84108.

OBJECTIVE. The objective of our study was to describe the merits and drawbacks of the double-echo chemical shift phase-selective gradient-echo technique for hepatic MRI.

CONCLUSION. With complementary information from two different dynamic imaging sets in conjunction with errorless subtraction between in- and out-of-phase images, the double-echo chemical shift phase-selective gradient-echo technique provides useful information regarding unpredictable variations in intra- or extralesional lipid content, allowing detailed assessment of focal lesions during hepatic MRI.

Keywords: abdominal imaging • hepatobiliary imaging • liver disease • MRI • MR technique


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