Probe holder for stereotactic surgery in the CT scanner a technical note

Abstract

The necessity for intraoperative computer tomographic (CT) visualization of stereotactic probes and for the immediate assessment of the results of therapeutic intervention has brought about the integration of CT and stereotactic surgical sites. In order to perform intraoperative CT imaging, a simple mechanical device has been developed to hold a probe at the target. This device replaces the conventional semicircular arc that was used to guide the probe to the target during stereotactic procedures. Intraoperative imaging during a CT stereotactic procedure was accomplished without significant artifacts.

Establishing a Benchmark for Complications Using Frame-Based Stereotactic Surgery

“…The onset of parenchymal imaging (not just angiography or ventriculography) allowed targeting for many new disorders. The initial availability of digital imaging using CT [7,11,21,23,29,[41][42][43][44][45][46] or MRI [14,15,34,47,48] further provided surgeons with the opportunity to obtain a precise diagnosis and facilitate treatment of a wide variety of intracranial lesions. Many clinical problems were identified much earlier in their clinical course.…”

“…Over the next 25 years, a wide variety of frame-based stereotactic procedures were performed in the CT scanner itself, both functional as well as morphological brain surgery [11,29,35,38,43,57] . The integration of the imaging site and the surgical site greatly improved efficiency, facilitating high-resolution intraoperative imaging and immediate postoperative imaging without moving the patient.…”

“…Instead, digitally acquired images were used to localize the target, after which a modified freehand technique was used in the scanner or the operating room to biopsy, treat, or even create a lesion [27,28] . Some centers supplemented their frameless systems with mechanical probe holders [29] .…”

Modern principles of stereotactic neurosurgery of nontraumatic intracerebral hematomas: a literature review

“…Для облегчения стереотаксических расчетов координат ТЦ к общепринятым аппаратам разработаны специальные устройства-адаптеры, цель которых совмещение систем координат КТ-установки и стереотаксического аппарата [16][17][18][19].…”

A Dedicated CT System for the Stereotactic Operating Room

“…The Perry system was designed for use solely within the CT scanner and a unique software program was written to interface the frame and CT computer; approach trajectories are limited to the vertex. Surgery in the CT scanner can be performed with the Leksell system using an ad apter to hold the probe at the target during reimaging [5]. In addition, the Leksell system allows unlimited approach trajectories and it also can be used for conventional (non-CT) stereotactic procedures.…”