Abstract #2687

Comparison of Capability for Distinguishing Malignant from Benign Prostatic Areas among 3D CEST Imaging, DWI and Combined Descriptors

Takahiro Ueda¹, Kaori Yamamoto², Yuichiro Sano², Masato Ikedo², Masanori Ozaki², Masao Yui², Hiroyuki Nagata³, Masahiko Nomura¹, Takeshi Yoshikawa¹, Daisuke Takenaka¹, Yoshiyuki Ozawa¹, and Yoshiharu Ohno^1,3

¹Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Japan, ²Canon Medical Systems Corporation, Otawara, Japan, ³Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, Toyoake, Japan

Synopsis

Keywords: Cancer, CEST / APT / NOE, CEST

Motivation: When compared with DWI, 3D CEST imaging has a potential to play a complementary role for improving management of suspected prostatic cancer patients and improve differentiation capability of malignant from benign prostatic area.

Goal(s): The goal was to compare the capability for distinguishing malignant from benign prostatic areas among 3D CEST imaging, DWI and combined both information.

Approach: This clinical study examined DWI and 3D CEST imaging. Then, ADC, MTR_asym and combined descriptors were compared to their diagnostic performance.

Results: Specificity and accuracy of combined discriminators were significantly higher than those of MTR_asym (p<0.0001) and ADC (p<0.0001).

Impact: 3D CEST imaging is considered at least as valuable as DWI and can improve capability for differentiation of malignant from benign prostatic areas with DWI. 3D CEST imaging may play as complementary role for management of suspected prostatic cancer patients.

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