Dynamic MRI of the wrist in less than 20 seconds: normal midcarpal motion and reader reliability.

ABSTRACT:

Objective

To describe the normal motion pattern at the midcarpal compartment during active radial-ulnar deviation of the wrist using dynamic MRI, and to determine the observer performance for measurements obtained in asymptomatic volunteers.

Methods

Dynamic MRI of 35 wrists in 19 asymptomatic volunteers (age mean 30.4 years, SD 8.6) was performed during active radial-ulnar deviation using a fast gradient-echo pulse sequence with 315 ms temporal resolution (acquisition time, 19 s). Two independent readers measured the transverse translation of the trapezium at the scaphotrapezium joint (STJ) and the capitate-to-triquetrum distance (CTD). Relationships between these measurements and laterality, sex, lunate type, and wrist kinematic pattern were evaluated.

Results

At the

SUBMITTER: Henrichon SS 

PROVIDER: S-EPMC6934906 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature