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Radio-guided brain tumorectomy using a gamma detecting probe and a mobile solid-state gamma camera
Toyoyuki Kojima1, Shin-Ichiro Kumita, Fumio Yamaguchi
1Department of Neurosurgery, Nippon Medical School, Tokyo, Japan.
Surgical Neurology
|February 27, 2004
Summary
This study introduces a gamma probe and mobile gamma camera technique for distinguishing brain tumors from normal tissue during surgery. The method effectively identifies tumors and residual tissues, aiding in complete tumor resection.
Area of Science:
- Neurosurgery
- Nuclear Medicine
- Medical Imaging
Background:
- A novel technique using a gamma probe and mobile gamma camera is presented for intraoperative brain tumor detection.
- This method utilizes technetium-99m hexakis-2-methoxy-isobutyl-isonitrile ((99m)Tc-MIBI) for tumor visualization.
Observation:
- The study involved 13 brain tumor patients undergoing surgery.
- Preoperative (99m)Tc-MIBI SPECT assessed tumor uptake, followed by intraoperative gamma probe localization and mobile gamma camera imaging.
- Histological examination and post-resection imaging confirmed tumor presence and residual disease.
Findings:
- The gamma probe and camera successfully identified tumors in all patients during surgery.
- Intraoperative findings correlated significantly with preoperative (99m)Tc-MIBI SPECT accumulation.
- Complete tumor resection was achieved in 9 patients, with residual tumor detected in 4.
Implications:
- This technique significantly aids in precise tumor identification and resection during surgery.
- It enables the detection of residual tumor tissue, potentially improving patient outcomes.
- The method offers a valuable tool for neurosurgeons to enhance the completeness of brain tumor removal.