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Depiction of periprostatic nerve fibers by means of 1.5 T diffusion tensor imaging
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Depiction of periprostatic nerve fibers by means of 1.5 T diffusion tensor imaging
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Journal Article
Depiction of periprostatic nerve fibers by means of 1.5 T diffusion tensor imaging
2021
Overview
Purpose
The knowledge of periprostatic nerve fiber (pNF) is still incomplete by means of conventional MRI. The purpose of our study was to demonstrate if DTI imaging is able to depict anatomical features of pNF.
Methods
For this retrospective study, fifty-six patients (mean age 63.5 years), who underwent 1.5-T prostate MRI, including 32 directions DTI, were enrolled between October 2014 and December 2018. ANOVA test and Student’s
t
-test were performed between the mean values of the number, FA values, and fiber length of pNF between base and mid-gland, mid-gland and apex, base and apex, right and left side, and anterior and posterior face of the prostate. A qualitative analysis was performed to detect the main orientation of pNF through a colorimetric 3D tractographic reconstruction.
Results
The number of pNF showed a decrease from the base (322) to mid-gland (248) and apex (75) (
p
< 0.05). The FA values were higher at base and mid-gland (0.435 and 0.456) compared to the apex (0.313) (p < 0.05). The length of pNF was higher at apex (13.4 mm) compared to base (11.5 mm) and mid-gland (11.7 mm) (
p
< 0.05). The number of pNF was higher on the posterior face compared to the anterior face at base (186 vs 137), (
p
< 0.001). The FA values were higher on the posterior face compared to the anterior face at base (0.452 vs 0.417), mid-gland (0.483 vs 0.429), and apex (0.42 vs 0.382), (
p
< 0.05). The length of the pNF was higher in the posterior (14.7 mm) than in the anterior face (12 mm) at apex (
p
< 0.001). The main orientation of pNF was longitudinal in all patients (56/56, 100%).
Conclusions
DTI imaging has been demonstrated able to depict anatomical features of pNF.
Publisher
Springer US,Springer Nature B.V
Subject
