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CT-Guided Core Biopsy of Subchondral Bone and Intervertebral Space in Suspected Spondylodiskitis

Sven C. A. Michel1, Christian W. A. Pfirrmann1, Norbert Boos1 and Juerg Hodler1

1 All authors: Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, Zurich, Switzerland 8008.


Figure 1
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  		Fig. 1 —Schematic display of transverse section through vertebral body demonstrating transpedicular approach (A) and posterolateral approach (B) for biopsy needle. Needle track in sagittal plane (C): both subchondral bone and disk material are included in biopsy track.

 

Figure 2
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  		Fig. 2 —Sequential CT fluoroscopy images (left figure parts) of left transpedicular biopsy at level of T11 in patient with T10-T11 spondylodiskitis (with positive microbiology and histology) and corresponding scout image (right figure part; line corresponds to level of transverse image of left figure part). An 11-gauge Trap System bone biopsy needle (MD Tech) is advanced through left pedicle into vertebral body (white arrowheads). Tip of needle (black arrowhead) is subsequently advanced in disk space (asterisk).

 

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