Fast Volumetric Imaging of Bone Using a Three-Dimensional Short TR Adiabatic Inversion Recovery Ultrashort Echo Time (STAIR-UTE) Sequence.

ABSTRACT: Bone is invisible with conventional MRI sequences. It is highly desirable to develop novel MRI sequences to image bone, providing a radiation-free modality for skeletal imaging. We compared the morphological and quantitative strength of three-dimensional (3D) ultrashort echo time (UTE), zero echo time (ZTE), and short TR adiabatic inversion recovery UTE (STAIR-UTE) MRI techniques for bone imaging in various skeletal anatomical regions, including the forearm, wrist, lower leg, upper leg, and skull. Five healthy volunteers (four male and one female) were subject to four MRI sequences, including 3D UTE with 2° and 7° flip angles (FAs), 3D ZTE with 2° FA, and 3D STAIR-UTE with 14° FA. Regions of interest (ROIs) were drawn in cortical bone, marrow cavity, and muscle to measure their signal inte

SUBMITTER: Daskareh M 

PROVIDER: S-EPMC12787626 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature