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Abstract #3482

Quantitative Kinematics of the Wrist Using Dynamic MRI

Michael H. Buonocore1, 2, Robert D. Boutin1, Igor Immerman3, Gerald J. Sonico2, Zachary Ashwell1, Robert M. Szabo3, Abhijit J. Chaudhari1

1Radiology, UC Davis, Sacramento, CA, United States; 2Imaging Research Center, UC Davis, Sacramento, CA, United States; 3Orthopedic Surgery, UC Davis, Sacramento, CA, United States

The abstract describes the use of the TrueFISP pulse sequence for observation and quantitative measurement of carpal bone angles and distances during active wrist motion, and demonstrates its performance in healthy human volunteers. High spatial and temporal resolution dynamic images provide diagnostically important measurements for assessment of carpal bone instability, tendon dislocation, and other pathologies of the wrist joint.

Keywords

accuracy acquisition active agreed aligned apparatus approval artifact artifacts asymptomatic available axis banding bone built cadaver carpal carpi central channel clench clenched coil congruity consent contact critically cycle degrees desirable develop deviated deviation diagnostically dislocated distal distances dorsal dorsally dynamic eleven engineering evaluated extension extensor fast female fist forearm forfeiting future groove hand head healthy human immobilize implemented important improving informed instability joint journal kinematics labs lateral limitations literature localizer location long maintains making male many maximal measured minimized model motion movement neutral observation orientation orthopedic orthopedist overall pads perched performance place position positions precession protocol pulse quantitative quick radial radiographic radiologist radiology rapid real reduce reducing relaxed reliably reported requirements resolution scanned selection silver sixty slice slight spatial steady stress subjects successful support surgery susceptibility system tendon translated translation trio true type ulna ulnar unable variance views volunteers wrist wrists years