HEPATOCELLULAR-CARCINOMA IN CIRRHOTIC LIVERS - DETECTION WITH UNENHANCED AND IRON OXIDE-ENHANCED MR-IMAGING

被引:109
作者
YAMAMOTO, H [1 ]
YAMASHITA, Y [1 ]
YOSHIMATSU, S [1 ]
BABA, Y [1 ]
HATANAKA, Y [1 ]
MURAKAMI, R [1 ]
NISHIHARU, T [1 ]
TAKAHASHI, M [1 ]
HIGASHIDA, Y [1 ]
MORIBE, N [1 ]
机构
[1] KUMAMOTO UNIV,SCH MED,DEPT RADIOL TECHNOL,KUMAMOTO 860,JAPAN
关键词
IRON; LIVERNEOPLASMS; LIVER; MR; MAGNETIC RESONANCE (MR); CONTRAST ENHANCEMENT; RECEIVER OPERATING CHARACTERISTIC (ROC);
D O I
10.1148/radiology.195.1.7892448
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 evaluate diagnostic accuracy with unenhanced and superparamagnetic iron oxide (SPIO)-enhanced magnetic resonance (MR) imaging for detection of hepatocellular carcinoma (HCC) in cirrhotic livers. MATERIALS ANL) METHODS: Fifteen patients with 26 histologically proved HCCs associated with liver cirrhosis underwent imaging with T1-, T2-, and proton-density-weighted spin-echo (SE) and fast low-angle shot (FLASH) sequences. Lesion-to-liver contrast-to-noise ratios were measured in all sequences. Diagnostic performance of the imaging techniques was assessed by using receiver operating characteristic analysis. RESULTS: Enhanced SE and FLASH sequences were significantly more accurate (P <.005) for the detection of small HCCs. Among the unenhanced pulse sequences, the accuracy of tumor localization was highest with the T2-weighted SE sequences; however, 25% of the lesions were located incorrectly. Compared with unenhanced images, lesions were correctly located more often when SPIO-enhanced SE and FLASH sequences were used. CONCLUSION: SPIO-enhanced MR imaging with proton-density-weighted or FLASH sequences was more accurate in the detection of small HCCs in cirrhotic livers.
引用
收藏
页码:106 / 112
页数:7
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