[MR-guided core biopsy of the shoulder: possibilities and experience with a vertically open 0.5T system].
OBJECTIVE
The availability of open whole body MRI magnets and MR-compatible instrumentarium were essential conditions for the progression of interventional MRI. The advantages of an MR-guided biopsy at the musculoskeletal system are the visualization of the puncture site of a representative area for tumor histology, the absence of exposure to radiation and the free selection of imaging planes. The purpose of the study was the development of a new technique of a secure MR-guided biopsy of intraosseus lesions in the humeral head.


METHODS
MR-guided core biopsy of a intraosseus lesion of the humeral head was performed in five male patients on a vertical open, whole body MRI magnet (SIGNA SP/i 0.5T, GE Medical Systems). The technique using interactive MRI and the MR-compatible instrumentarium are described.


RESULTS
A secure core biopsy could be obtained from a representative area for tumor histology in all cases. No complications occurred, especially no nerve or vessel lesion, no rotator cuff lesion and no intra-articular contamination of the shoulder joint were observed.


CONCLUSIONS
A new technique is presented to obtain MR-guided core biopsies of intraosseous lesions of the humeral head. Furthermore, clinical indications of this technique are described.
Thomas
M
M
Orthopädische Klinik und Poliklinik am Universitätsklinikum Leipzig AöR. thom@medizin.uni-leipzig.de
Schulz
T
T
Schmidt
F
F
Kahn
T
T
Busse
M W
MW
D000328:Adult; D001706:Biopsy / Q000295:instrumentation / Q000379:methods*; D001859:Bone Neoplasms / Q000175:diagnosis / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D006811:Humerus / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012785:Shoulder Joint