Quantitative evaluation of age‐related changes to pelvic floor muscles in magnetic resonance images from 369 patients

Autor: Tatsuya Nakatani, Atsushi Komemushi, Kazuya Morimoto, Tomoaki Tanaka, Yoshimitsu Komemushi, Yukio Yoneda, Rikio Yoshimura, Takeharu Katou
Rok vydání: 2019
Předmět:
Zdroj: Geriatrics & Gerontology International. 19:834-837
ISSN: 1447-0594
1444-1586
DOI: 10.1111/ggi.13726
Popis: AIM This study aimed to establish and validate a quantitative evaluation method for pelvic floor muscles using magnetic resonance images (MRI) and to examine the morphological change of pelvic floor muscles with aging. METHODS Data from 369 consecutive patients (163 men, 206 women; median age 58 years; range 17-92 years) who underwent coronal T2-weighted pelvic MRI at Osaka General Hospital between January 2016 and December 2016 were retrospectively examined. MRI of the levator ani muscle was evaluated. The MRI image blinded the patient information and was evaluated by a radiology specialist with 22 years of experience. In coronal T2-weighted MRI of the pelvis, the levator ani muscle was evaluated using the slice; it showed the most upward and downward convexity. We measured the thickness of the levator ani muscle, and the distance at the most convex part from a straight line connecting the origin and insertion of the levator ani muscle on both the left and right sides. Upward and downward convexity was recorded in positive and negative values, respectively. RESULTS The levator ani muscle was able to be evaluated quantitatively in all cases. Both men and women showed thinning (men: mean 3.316 mm, r = -0.388, P
Databáze: OpenAIRE