Physiological monitoring of stereotactic biopsy.
It is helpful to have direct confirmation during a CT-guided stereotactic procedure that the intended target has been reached without operating under imaging. This can be simply accomplished with readily available equipment by serial monitoring of electrical impedance as a probe is directed to the target because the impedance of hematomas, cysts, and most neoplasms is conspicuously below that of normal brain.
D001921:Brain / Q000473:pathology; D001927:Brain Diseases / Q000473:pathology*; D001932:Brain Neoplasms / Q000473:pathology; D004553:Electric Conductivity; D004566:Electrodes; D006801:Humans; D013238:Stereotaxic Techniques