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Synchronous imaging of pelvic geometry and muscle morphometry: a pilot study of pelvic retroversion using upright MRI.
- Source :
-
Scientific reports [Sci Rep] 2021 Oct 11; Vol. 11 (1), pp. 20127. Date of Electronic Publication: 2021 Oct 11. - Publication Year :
- 2021
-
Abstract
- This study investigated feasibility of imaging lumbopelvic musculature and geometry in tandem using upright magnetic resonance imaging (MRI) in asymptomatic adults, and explored the effect of pelvic retroversion on lumbopelvic musculature and geometry. Six asymptomatic volunteers were imaged (0.5 T upright MRI) in 4 postures: standing, standing pelvic retroversion, standing 30° flexion, and supine. Measures included muscle morphometry [cross-sectional area (CSA), circularity, radius, and angle] of the gluteus and iliopsoas, and pelvic geometry [pelvic tilt (PT), pelvic incidence (PI), sacral slope (SS), L3-S1 lumbar lordosis (LL)] L3-coccyx. With four volunteers repeating postures, and three raters assessing repeatability, there was generally good repeatability [ICC(3,1) 0.80-0.97]. Retroversion had level dependent effects on muscle measures, for example gluteus CSA and circularity increased (up to 22%). Retroversion increased PT, decreased SS, and decreased L3-S1 LL, but did not affect PI. Gluteus CSA and circularity also had level-specific correlations with PT, SS, and L3-S1 LL. Overall, upright MRI of the lumbopelvic musculature is feasible with good reproducibility, and the morphometry of the involved muscles significantly changes with posture. This finding has the potential to be used for clinical consideration in designing and performing future studies with greater number of healthy subjects and patients.<br /> (© 2021. The Author(s).)
- Subjects :
- Adult
Bone Retroversion pathology
Cross-Sectional Studies
Feasibility Studies
Female
Humans
Male
Middle Aged
Pilot Projects
Range of Motion, Articular
Standing Position
Young Adult
Bone Retroversion physiopathology
Lordosis physiopathology
Lumbar Vertebrae anatomy & histology
Magnetic Resonance Imaging methods
Muscles anatomy & histology
Pelvic Bones anatomy & histology
Pelvis anatomy & histology
Subjects
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 11
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 34635683
- Full Text :
- https://doi.org/10.1038/s41598-021-99305-w