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Single breath-hold multiarterial dynamic MRI of the liver at 3T using a 3D fat-suppressed keyhole technique

Authors
 Hye-Suk Hong  ;  Hua Sun Kim  ;  Myeong-Jin Kim  ;  Jan De Becker  ;  Donald G. Mitchell  ;  Masayuki Kanematsu 
Citation
 JOURNAL OF MAGNETIC RESONANCE IMAGING, Vol.28(2) : 396-402, 2008 
Journal Title
JOURNAL OF MAGNETIC RESONANCE IMAGING
ISSN
 1053-1807 
Issue Date
2008
MeSH
Adult ; Aged ; Contrast Media ; Female ; Humans ; Image Enhancement/methods* ; Image Interpretation, Computer-Assisted ; Imaging, Three-Dimensional* ; Liver Diseases/diagnosis* ; Magnetic Resonance Imaging/methods* ; Male ; Meglumine/analogs & derivatives ; Middle Aged ; Organometallic Compounds
Keywords
focal liver lesions ; liver MRI ; contrast‐enhanced dynamic MRI ; multiphase arterial MRI
Abstract
PURPOSE: To evaluate the feasibility of single breath-hold, multiarterial MRI of the liver using the THRIVE-CENTRA-keyhole technique.

MATERIALS AND METHODS: Twenty-eight patients with 63 focal hepatic lesions underwent liver MR examinations that included the three-dimensional THRIVE-CENTRA-keyhole sequence. Three or six phases were obtained for arterial phase scanning during a single breath-hold. Central k-space data were collected for each phase but the remaining peripheral k-space data were collected only once. The enhancement pattern of each hepatic lesion was analyzed according to the specific diagnosis.

RESULTS: Hepatocellular carcinomas (n = 24) enhancement patterns included: rim enhancing (n = 9), homogeneous (n = 7), nodule-in-nodule (n = 5), or heterogeneous (n = 3). A late peritumoral rim was observed in four (17%) of the hepatocellular carcinomas. Most metastases (17 of 18; 94%) demonstrated peripheral rim enhancement. The progressive centripetal enhancement of hemangiomas (n = 6) was clearly depicted. Focal nodular hyperplasia (n = 4) showed early homogeneous enhancement and one lesion demonstrated a central scar.

CONCLUSION: The THRIVE-CENTRA-keyhole technique can be used to acquire single breath-hold, multiarterial images depicting improved enhancement characteristics of focal hepatic lesions. This technique will allow accurate timing of arterial scanning with 3D acquisition and high temporal resolution.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/jmri.21442/abstract
DOI
10.1002/jmri.21442
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
Hong, Hye Suk(홍혜숙) ORCID logo https://orcid.org/0000-0001-7398-2517
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106418
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