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Abstract
We have reviewed our continued experience with computed tomography guided freehand
percutaneous brain biopsy using a needle guide sheath of our own devising. The guide
sheath is equipped with small metallic marker beads and throws no artifacts. It is
useful in demonstrating the exact tip of the guide biopsy sheath in relation to the
wall of the intracerebral lesion. The deforming response of the target lesion wall
to the guide sheath and the biopsy needle is easily seen using our technique and is
highly correlated to obtaining a satisfactory pathologic specimen. Combination of
this guide sheath with a suitable computed tomography compatible head frame may represent
a highly accurate and reliable but relatively simple guidance system.
Keywords
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© 1987 Published by Elsevier Inc.