[A new MR-(and CT-) compatible bone biopsy system: first clinical results].
OBJECTIVE
To describe the development and clinical evaluation of a new, hand-powered or alternatively motor-driven, MRI and CT compatible percutaneous bone biopsy system.


METHODS
A new coaxial drill system (Cook Europe A/S) was designed for percutaneous, MR-guided bone biopsies and powered either by hand or an optional motor (10-250 rotations/minute using 6 bar [88.2 PSI] compressed air). The system has been used in 23 patients. Fourteen procedures were performed in a 1.5 T MR scanner (Philips-Gyroscan ACS-NT) which has an attached C-arm (Philips-BV 212-Angio) in case fluoroscopy is required, and 9 procedures in a CT scanner (Siemens-Somatom Plus).


RESULTS
Driven by hand or by the pneumatic motor unit, the system achieved safe and accurate MR-guided access to all of the lesions and was even able to penetrate osteosclerotic lesions. MR- or CT-guided percutaneous biopsy yielded a correct diagnosis in all but 5 cases. No procedural complications occurred.


CONCLUSIONS
MR-guided percutaneous bone biopsy performed with the new coaxial drill system was found to be safe and reliable, and suitable for obtaining histological specimens from skeletal lesions even when covered with thick cortical or sclerotic bone.
Neuerburg
J
J
Klinik für Radiologische Diagnostik, Universitätsklinikum, RWTH Aachen. neuerburg@rad.rwth-aachen.de
Adam
G
G
Bücker
A
A
Zilkens
K W
KW
Schmitz-Rode
T
T
Katterbach
F J
FJ
Klosterhalfen
B
B
Rasmussen
E
E
van Vaals
J J
JJ
Günther
R W
RW
D001706:Biopsy / Q000295:instrumentation / Q000379:methods*; D001845:Bone Cysts / Q000000981:diagnostic imaging / Q000473:pathology; D001847:Bone Diseases / Q000000981:diagnostic imaging / Q000473:pathology*; D001842:Bone and Bones / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*
Neues MR-(und CT-)kompatibles Knochenbiopsiesystem: Erste klinische Ergebnisse.