Connectivity of the Superficial Muscles of the Human Perineum: A Diffusion Tensor Imaging-Based Global Tractography Study
Autor: | Ali Zifan, Robert L. Sah, Esther Cory, Ravinder K. Mittal, Shantanu Sinha, Melissa M. Ledgerwood-Lee, Marco Reisert |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: |
Adult
Male External anal sphincter lcsh:Medicine Perineum Article 030218 nuclear medicine & medical imaging 03 medical and health sciences Young Adult 0302 clinical medicine Cadaver Clinical Research medicine Humans Peripheral Nerves lcsh:Science Multidisciplinary Pelvic floor medicine.diagnostic_test business.industry Muscles lcsh:R Bulbospongiosus Magnetic resonance imaging Anatomy X-Ray Microtomography Healthy Volunteers medicine.anatomical_structure Diffusion Tensor Imaging Biomedical Imaging lcsh:Q Female business 030217 neurology & neurosurgery Diffusion MRI Tractography |
Zdroj: | Scientific Reports Scientific reports, vol 8, iss 1 Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018) |
ISSN: | 2045-2322 |
Popis: | Despite the importance of pelvic floor muscles, significant controversy still exists about the true structural details of these muscles. We provide an objective analysis of the architecture and orientation of the superficial muscles of the perineum using a novel approach. Magnetic Resonance Diffusion Tensor Images (MR-DTI) were acquired in 10 healthy asymptomatic nulliparous women, and 4 healthy males. Global tractography was then used to generate the architecture of the muscles. Micro-CT imaging of a male cadaver was performed for validation of the fiber tracking results. Results show that muscles fibers of the external anal sphincter, from the right and left side, cross midline in the region of the perineal body to continue as transverse perinea and bulbospongiosus muscles of the opposite side. The morphology of the external anal sphincter resembles that of the number ‘8’ or a “purse string”. The crossing of muscle fascicles in the perineal body was supported by micro-CT imaging in the male subject. The superficial muscles of the perineum, and external anal sphincter are frequently damaged during child birth related injuries to the pelvic floor; we propose the use of MR-DTI based global tractography as a non-invasive imaging technique to assess damage to these muscles. |
Databáze: | OpenAIRE |
Externí odkaz: |