FATTY METAMORPHOSIS OF HEPATOCELLULAR-CARCINOMA DETECTION WITH CHEMICAL-SHIFT GRADIENT-ECHO MR-IMAGING

被引:88
作者
MARTIN, J
SENTIS, M
ZIDAN, A
DONOSO, L
PUIG, J
FALCO, J
BELLA, R
机构
[1] CONSORCI HOSP PARC TAULI,SERV DIAGNOST IMATGE,SABADELL,SPAIN
[2] CONSORCI HOSP PARC TAULI,DEPT PATOL,SABADELL,SPAIN
关键词
LIVER; FATTY; LIVER NEOPLASMS; MR; MAGNETIC RESONANCE (MR); CHEMICAL SHIFT;
D O I
10.1148/radiology.195.1.7892452
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PURPOSE: To assess the value of chemical shift gradient-echo (GRE) magnetic resonance (MR) imaging with th, fast low-angle shot (FLASH) technique to detect fatty metamorphosis in hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Sixty-three cirrhotic patients with 69 HCCs underwent MR imaging at 1.0 T with chemical shift GRE technique. Both opposed-phase and in-phase FLASH imaging with breath holding was performed, and the percentage variation in signal intensity of the nodules between the two images was calculated. RESULTS: Chemical shift GRE imaging depicted fat in 10 HCCs (14%). In these cases, the percentage variation in signal intensity increased notably and was 88.6%-369.3% (mean, 174.7%), which indicated fatty content (sensitivity, 100%; specificity, 100% when compared with fine-needle aspiration cytology). In the remaining 59 nodules, the percentage of signal intensity variation ranged from 12.7% to -19.1% (mean, -4.0%). CONCLUSION: Chemical shift GRE MR imaging can be used to detect fatty metamorphosis in HCC.
引用
收藏
页码:125 / 130
页数:6
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