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. 2012 Sep-Oct;36(5):526-31.
doi: 10.1016/j.clinimag.2011.11.016. Epub 2012 Jun 8.

Diagnostic accuracy of ultra-high-b-value 3.0-T diffusion-weighted MR imaging for detection of prostate cancer

Yoshimitsu Ohgiya  1 , Jumpei Suyama, Noritaka Seino, Takashi Hashizume, Masaaki Kawahara, Syouei Sai, Makoto Saiki, Jiro Munechika, Masanori Hirose, Takehiko Gokan
Affiliations

Diagnostic accuracy of ultra-high-b-value 3.0-T diffusion-weighted MR imaging for detection of prostate cancer

Yoshimitsu Ohgiya et al. Clin Imaging. 2012 Sep-Oct.

Abstract

Purpose: To investigate the diagnostic accuracy of 3.0-T diffusion-weighted imaging (DWI) for detection of prostate cancer by using different b-values.

Methods: Seventy-three patients underwent magnetic resonance imaging (MRI) at 3.0 T. Three MRI sets were reviewed by two radiologists: MRI and DWI (b = 500 s/mm(2)) (protocol A), MRI and DWI (b = 1000 s/mm(2)) (protocol B), and MRI and DWI (b = 2000s/mm(2)) (protocol C). Areas under the receiver operating characteristic curve (AUCs) were calculated.

Results: The mean of the AUCs in protocol C was larger than those in protocol A and in protocol B (P<.05).

Conclusion: DWI (b = 2000s/mm(2)) at 3.0 T can improve the diagnostic accuracy for detection of prostate cancer.

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