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Evaluating Pelvic Floor Muscles in Patients with Pelvic Organ Prolapse Using Diffusion Tensor Imaging / 中国医学影像学杂志
Chinese Journal of Medical Imaging ; (12): 295-298,302, 2017.
Article in Chinese | WPRIM | ID: wpr-609179
ABSTRACT
Purpose To evaluate parameter changes of pelvic floor muscles in patients with female pelvic organ prolapse (POP) through diffusion tensor imaging (DTI).Materials and Methods Fifty female patients with POP at Ⅲ or ⅣV degree (research group) and fifty healthy women volunteers (control group) were collected to make prospective research.The axial DTI sequence was performed in subjects,with b=500 s/mm2,at 15 directions.DTI original images were imported into the post-processing software,and the corresponding DTI mappings were formed.In the original images,pelvic floor muscles were sketched out layer by layer,and various DTI parameters,including fractional anisotrophy (FA),mean diffusivity (MD),λl,λ2,λ3,linear anisotropy (CL),planar anisotropy (CP) and spherical anisotropy (CS),were calculated.Six kinds of pelvic floor muscles,including anal sphincter,superficial transverse perineal muscle,pubic visceral muscle,puborectal muscle and iliococcygeal muscle were measured,and five of them were measured on both sides.The difference of DTI parameters between right and left side of each muscle,and the difference of DTI parameters between research and control group were compared.Results Between the right and left side of five kinds of pelvic floor muscles in control group,significant difference was only found in FA,λ3,CP,CS value of internal obturator muscle (P<0.01,P<0.001).There were significant differences in FA,λ3,CL,CP and CS values of the left and right muscles in the study group (P<0.05,P<0.001).Compared with control group,FA value and CS value of superficial transverse perineal muscle,CL value of left pubic visceral muscle,FA,λ3,CL,CS and CP value of right pubic visceral muscle,λ1 and λ3 value of left iliococcygeal muscle of research group were significantly different (P<0.01,P<0.05).Conclusion DTI for observation of female pelvic floor muscle is technically feasible,and it can detect the injury of pelvic floor muscle in POP patients,and may be helpful to reveal the pathogenesis of POP.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Medical Imaging Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Medical Imaging Year: 2017 Type: Article