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Abdominal applications of 3.0-T MR imaging: Comparative review versus a 1.5-T system

Authors
 Jin-Young Choi  ;  Myeong-Jin Kim  ;  Yong Eun Chung  ;  Ji Youn Kim  ;  Alun C Jones  ;  Jan de Becker  ;  Marc van Cauteren 
Citation
 RADIOGRAPHICS, Vol.28(t) : 30, 2008 
Journal Title
RADIOGRAPHICS
ISSN
 0271-5333 
Issue Date
2008
MeSH
Abdomen/pathology* ; Aged ; Female ; Humans ; Image Enhancement/methods* ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Radiation Dosage ; Radiation Protection/methods*
Keywords
Abdomen/pathology* ; Aged ; Female ; Humans ; Image Enhancement/methods* ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Radiation Dosage ; Radiation Protection/methods*
Abstract
With the development of dedicated receiver coils and increased gradient performance, 3.0-T magnetic resonance (MR) systems are gaining wider acceptance in clinical practice. The expected twofold increase in signal-to-noise ratio (SNR) compared with that of 1.5-T MR systems may help improve spatial resolution or increase temporal resolution when used with parallel acquisition techniques. Several issues must be considered when applying 3.0-T MR in the abdomen, including the alteration of the radiofrequency field and relaxation time, increase in energy deposition and susceptibility effects, and problems associated with motion artifacts. For the evaluation of liver lesions, higher SNR and greater resolution achieved with the 3.0-T system could translate into better detection of malignant lesions on T2-weighted images obtained with adjusted imaging parameters. For the evaluation of pancreatic and biliary diseases, high-resolution T2-weighted imaging using single-shot turbo spin-echo sequences is useful; improvement in SNR was noticeable on two-dimensional MR cholangiopancreatographic images. For the preoperative imaging of rectal cancer, a single-shot sequence is useful for dramatically decreasing imaging time while maintaining image quality. Substantial modification of examination protocols, with optimized imaging parameters and sequence designs along with ongoing development of hardware, could contribute to an increased role of the 3.0-T system for abdominal MR examinations
Full Text
http://pubs.rsna.org/doi/abs/10.1148/rg.e30
DOI
10.1148/rg.e30
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Chung, Yong Eun(정용은) ORCID logo https://orcid.org/0000-0003-0811-9578
Choi, Jin Young(최진영) ORCID logo https://orcid.org/0000-0002-9025-6274
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106997
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