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Intraoperative imaging using a mobile computed tomography scanner.
1Department of Neurosurgery, Academic Hospital München-Bogenhausen, Technical University of Munich, Englschalkingerstrasse 77, 81925 Munich, Germany. h.gumprecht@kh-bogenhausen.de
Minimally Invasive Neurosurgery : MIN
|February 18, 2004
Summary
Intraoperative CT scans effectively detect residual glioma tumors, aiding further resection. However, most neurosurgical procedures can be successfully completed with advanced neuronavigation planning alone.
Area of Science:
- Neurosurgery
- Radiology
- Oncology
Background:
- Radical tumor removal in glioma patients is crucial for improved survival.
- Intraoperative imaging modalities like MRI, CT, and US are evaluated for clinical neurosurgical use.
- A mobile CT scanner has been utilized for intraoperative applications since 1999.
Purpose of the Study:
- To assess the utility and effectiveness of a mobile CT scanner for intraoperative imaging in glioma surgery.
- To compare the findings of intraoperative CT scans with postoperative MRI.
- To evaluate the outcomes of glioma surgeries performed with and without intraoperative imaging.
Main Methods:
- 470 CT scans were performed using a mobile CT scanner for various applications including neuronavigation, intraoperative, and postoperative imaging.
- Intraoperative CT results were compared with postoperative MRI findings.
- 87 glioma patients who underwent surgery without intraoperative imaging were evaluated.
Main Results:
- Intraoperative CT detected residual tumor in 27 out of 43 glioma patients, leading to further resection in 13 cases.
- Comparison with postoperative MRI revealed discrepancies in 6 cases, suggesting potential for more complete resection in 3 cases (6.8%).
- Glioma surgeries without intraoperative CT showed similar rates of potentially more complete resection (6.9%) based on postoperative MRI.
Conclusions:
- Intraoperative mobile CT scanning is a valuable tool for detecting residual glioma tumors.
- The mobile CT scanner can be seamlessly integrated into the surgical workflow.
- While beneficial in select cases, neuronavigation planning often suffices for successful glioma resection.