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Abstract #3335

Improved diagnostic value for prostate cancer with bpMRI PI-RADS v2.1 integrating quantitative synthetic magnetic resonance imaging

You Yun1, Jinxia Guo2, Nannan Shao1, Wentao Liu1, Lifeng Wang1, Xiaoxian Zhang1, Dongqiu Shan1, and Xuejun Chen1
1The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China, 2GE Healthcare MR Research,Beijing,China, Beijing, China

Synopsis

Keywords: Prostate, Prostate, Prostate Imaging Reporting and Data System, Relaxation time quantitative technique, Synthetic magnetic resonance imaging

Motivation: It’s essential to explore new imaging methods to improve the diagnostic performance of bp-MRI (T2W+DWI) PI-RADS v2.1 in the absence of DCE.

Goal(s): To evaluate the potential of quantitative relaxometry from synthetic MRI in combination with bp-MRI PI-RADS v2.1 score for differentiating clinically significant prostate cancer.

Approach: T2WI, T2WI fs, DWI and synthetic MRI with magnetic resonance image compilation (MAGiC) imaging in 3T MR

Results: Integrating T1, T2, PD and ADC with PI-RADS score improves the diagnostic performance for lesions in peripheral zone significantly with increased both sensitivity and specificity, but not significantly for the lesions in transitional zone.

Impact: The introduction of relaxometry from synthetic MRI can help improve the diagnostic efficiency in the peripheral zone when integrated with PI-RADS in the absence of DCE, which avoid the increase of peripheral zone lesions with PI-RADS score of 3.

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Keywords