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. 2014 May-Jun;38(3):302-6.
doi: 10.1016/j.clinimag.2014.01.009. Epub 2014 Feb 7.

Visualization of periprostatic nerve fibers before and after radical prostatectomy using diffusion tensor magnetic resonance imaging with tractography

Kazuhiro Kitajima  1 , Satoru Takahashi  2 , Yoshiko Ueno  3 , Hideaki Miyake  4 , Masato Fujisawa  5 , Kazuro Sugimura  6
Affiliations

Visualization of periprostatic nerve fibers before and after radical prostatectomy using diffusion tensor magnetic resonance imaging with tractography

Kazuhiro Kitajima et al. Clin Imaging. 2014 May-Jun.

Abstract

Purpose: The purpose was to evaluate whether the diffusion tensor imaging (DTI) technique can visualize changes in the numbers of periprostatic nerve fibers before and after nerve-sparing and non-nerve-sparing prostatectomy.

Method: Fifty-two prostate cancer patients underwent 3-T magnetic resonance imaging including DTI before and after prostatectomy.

Results: After non-nerve-sparing prostatectomy, the numbers of tracts were significantly decreased at base (218.8±198.8 vs. 60.5±88.7), midgland (124.1±134.5 vs. 32.5±45.7), and apex (103.1±127.4 vs. 29.1±57.1). However, after nerve-sparing prostatectomy, the numbers of tracts were not changed significantly at base (170.5±139.7 vs. 127.7±146.0), midgland (134.3±140.8 vs. 83.7±58.3), and apex (64.1±68.4 vs. 62.3±61.9).

Conclusion: DTI technique may be feasible for visualization of periprostatic nerve fibers.

Keywords: Diffusion tensor imaging; Erectile dysfunction; Prostate cancer; Prostatectomy; Tractography.

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