title: A computer-assisted device for the intraoperative CT-correlated localization of brain tumors.
abstract: In a series of 72 open brain tumor operations the 32P (radiophosphorus) test proved to be valuable for the removal of visually not detectable tumor residues. As during resection a topographical orientation in the depth of tumor cavities was nearly impossible, a computerized measuring device was developed which enables the surgeon to locate the tumor boundaries by simultaneous comparison with preoperative CT scans. For 32P-beta emission measurements a miniature semiconductor probe can be attached to the tip of the four-axis digitizing arm allowing the evaluation of radicality by topographic distinction between tumor ramifications and normal brain tissue. The device was tested during 3 craniotomies and the perspectives of computerized stereotaxy are discussed.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary / Q000601:surgery; D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary / Q000601:surgery; D003936:Diagnosis, Computer-Assisted; D004867:Equipment Design; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000295:instrumentation