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Quantitative evaluation liver cyst, hemangioma and hepatocellular carcinoma  by using T1 mapping and DWI
Fei Wang1, Yupei Zhang1, Mengxiao Liu2, and Juan Zhu1
1Department of MRI,AnQing Municipal Hospital, Anqing, China, 2MR scientific Marketing, Diagnostic Imaging, Siemens Healthcare Ltd, Shanghai, China
T1-mapping technology for differential diagnosis of hepatic cyst,hemangioma and HCC provides a new quantitative method, especially for no-enhanced T1-mapping, have promise of clinical application.
Figure 1. (a~f) Liver cyst. appeared hyperintensity on T2WI-fs and hypointensity on contrast image, ADC value 2.81×10-3mm2/s, pre-contrast T1=3125ms, post-contrast T1=2800ms, decrease rate of T1 = 10.4%. (g~l) Hemangioma. appeared hyperintensity on both T2WI-fs and contrast image. ADC value 1.53×10-3mm2/s, pre-contrast T1=1828ms, post-contrast T1=210ms, decrease rate of T1 = 88.5%. (m~r) HCC. appeared hypointensity on both T2WI-fs and delayed contrast image. ADC value 0.95×10-3mm2/s, pre-contrast T1=1208ms, post-contrast T1=530ms, decrease rate of T1 = 56.1%
Figure 2. Boxplots of pre- and post-contrast T1 value, decrease rate and ADC value