Dynamic tracking of scaphoid, lunate, and capitate carpal bones using four-dimensional MRI. PLoS One 2022;17(6):e0269336
Date
06/03/2022Pubmed ID
35653348Pubmed Central ID
PMC9162359DOI
10.1371/journal.pone.0269336Scopus ID
2-s2.0-85131243073 (requires institutional sign-in at Scopus site) 2 CitationsAbstract
A preliminary exploration of technical methodology for dynamic analysis of scaphoid, capitate, and lunate during unconstrained movements is performed in this study. A heavily accelerated and fat-saturated 3D Cartesian MRI acquisition was used to capture temporal frames of the unconstrained moving wrist of 5 healthy subjects. A slab-to-volume point-cloud based registration was then utilized to register the moving volumes to a high-resolution image volume collected at a neutral resting position. Comprehensive in-silico error analyses for different acquisition parameter settings were performed to evaluate the performance limits of several dynamic metrics derived from the registration parameters. Computational analysis suggested that sufficient volume coverage for the dynamic acquisitions was reached when collecting 12 slice-encodes at 2.5mm resolution, which yielded a temporal resolution of and 2.6 seconds per volumetric frame. These acquisition parameters resulted in total in-silico errors of 1.9°±1.8° and 3°±4.6° in derived principal rotation angles within ulnar-radial deviation and flexion-extension motion, respectively. Rotation components of the carpal bones in the radius coordinate system were calculated and found to be consistent with earlier 4D-CT studies. Temporal metric profiles derived from ulnar-radial deviation motion demonstrated better performance than those derived from flexion/extension movements. Future work will continue to explore the use of these methods in deriving more complex dynamic metrics and their application to subjects with symptomatic carpal dysfunction.
Author List
Zarenia M, Arpinar VE, Nencka AS, Muftuler LT, Koch KMAuthors
Kevin M. Koch PhD Center Director, Professor in the Radiology department at Medical College of WisconsinLutfi Tugan Muftuler PhD Professor in the Neurosurgery department at Medical College of Wisconsin
Andrew S. Nencka PhD Director, Associate Professor in the Radiology department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
Biomechanical PhenomenaHumans
Magnetic Resonance Imaging
Range of Motion, Articular
Rotation
Scaphoid Bone
