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간의 자기 공명 영사에서 true FISP 급속 T2 강조 영상의 유용성 : 호흡 정지 급속 스핀 에코와 HASTE 영상과의 비교

Other Titles
 The Value of True FISP Sequence as a Fast T2-Weighted MR Imaging of Liver : Comparison with Breath-hold Turbo Spin Echo and HASTE Sequence 
 유정식  ;  김기황  ;  정미경  ;  정은기  ;  유영훈  ;  김재근 
 Journal of the Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회지), Vol.3(3) : 245-250, 1999 
Journal Title
 Journal of the Korean Society of Magnetic Resonance in Medicine (대한자기공명의과학회지) 
Issue Date
Liver ; MR ; Magnetic Resonance(MR) ; pulse sequences ; Magnetic Resonance(MR) ; comparative studies
Purpose : To document the relative usefulness of true Fast-imaging steady-state precession(FISP) comparing to breath-hold turbo spin-echo(TSE), and half-Fourier single-shot turbo spin-echo(HASTE) as a fast T2-weighted sequence during hepatic MR imaging. Materials and Methods : For 46 patients with 87 focal hepatic lesions(hepatocellular carcinoma, n=26; metastasis. n=5; cavernous hemangioma, n=37; cyst, n=19), we obtained MR imaging of the liver at 1.5T. True FISP, TSE with and without fat-suppresion(FS), and HASTE with and without FS images were obtained during one breath-hold. Images were compared on the basis of tumor detectability and lesion-to-liver contrast-to-noise ratio(CNR). Qualitative analysis of each imaging sequence was also performed in terms of hepatic contour, visibility of vascular landmarks and imaging artifacts. Results : TSE-FS depicted more focal lesions(78/87, 90%) than other sequences(TSE, 75/87=86%;HASTE, 74/87=85%; HASTE-FS, 75/87=86%;true FISP,73/87=84%). However, there was no statistical significance between each sequence(p> .05). Using true FISP or HASTE, there was a statistically significant difference(p× .01) between the CNRs of solid tumors, crystal and hemangiomas. Additionally, true FISP sequence showed better hepatic contour, vascular landmarks and less artifacts comparing with TSE or HASTE regardless of FS(p< .001). Conclusion : True FISP sequence allows differentiation between solid tumors, hemangiomas and cystic lesions in terms of CNR, and provides better imaging quality than other fast T2-weighted MR sequences.
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Ryu, Young Hoon(유영훈) ORCID logo https://orcid.org/0000-0002-9000-5563
Yu, Jeong Sik(유정식) ORCID logo https://orcid.org/0000-0002-8171-5838
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