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Abstract #1196

Subtype Differentiation of Small (< 4 cm) Solid Renal Mass Using Histogram Analysis of Reduced Field-of-View Diffusion Weighted MRI at 3-T

Anqin Li1, Zhen Li1, Haojie Li1, and Daoyu Hu1

1Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China

To evaluate the utility of volumetric histogram analysis originated from reduced field-of-view (r-FOV) diffusion-weighted (DW) imaging for small (< 4cm) solid renal mass subtypes at 3-T MR. Differences of ADC histogram parameters among different subtypes of renal tumor were compared. Benign tumors had significantly lower mean ADC, median ADC, 10th, 25th, 75th, 90th percentiles ADC, SD and entropy values compared to malignant tumors. ADC histogram analysis of the entire lesion was complementary to the mean ADC measure and may have a certain value to help differentiate the majority of subtypes of small solid renal tumor.

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