Abstract #1073
Diffusion-weighted imaging of prostate cancer using statistical model based on a gamma distribution
Hiroshi Shinmoto 1 , Chiharu Tamura 1 , Shigeyoshi Soga 1 , Teppei Okamura 1 , Kentaro Yamada 1 , Tatsumi Kaji 1 , and Koichi Oshio 2
1
Radiology, National Defense Medical College,
Saitama, Japan,
2
Diagnostic
Radiology, Keio University, School of Medicine, Tokyo,
Japan
The purpose of this study was to investigate the
distribution of diffusion coefficients in prostate
cancer (PC) and healthy peripheral zone (PZ) using the
statistical model based on a gamma distribution.
Twenty-six patients with PC were included in this study.
The mean and the standard deviation were significantly
lower in PC than in PZ. ADC < 1.0 (%) was significantly
higher in PC than in PZ and ADC > 3.0 (%) was
significantly lower in PC than in PZ. The statistical
model provides additional insight for DWI and allows us
better correlation of diffusion signal decay and
histologic findings.
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