Related Experiment Videos
Increased brain tumor resection using fluorescence image guidance in a preclinical model
Arjen Bogaards1, Abhay Varma, Sean P Collens
1Department of Medical Biophysics, Ontario Cancer Institute/University Health Network and University of Toronto, Toronto, Ontario, Canada M5G 2M9.
Lasers in Surgery and Medicine
|September 25, 2004
Summary
Fluorescence-guided resection (FGR) significantly improves brain tumor removal completeness. This method enhances visualization of tumor margins, leading to more consistent and complete surgical outcomes.
Area of Science:
- Neurosurgery
- Surgical Oncology
- Medical Imaging
Background:
- Fluorescence image-guided surgery aims to improve visualization of brain tumor margins.
- Distinguishing tumor from healthy tissue is challenging during resection.
Purpose of the Study:
- To compare the completeness of brain tumor resection using white light resection (WLR) versus additional fluorescence-guided resection (FGR).
- To evaluate the impact of FGR on residual tumor volume.
Main Methods:
- A preclinical rabbit model with intracranial VX2 tumors was used.
- 5-aminolevulinic acid (ALA) was administered to induce protoporphyrin IX (PpIX) fluorescence.
- A fluorescence imaging and spectroscopy system was employed for guidance.
Main Results:
- FGR significantly increased resection completeness by 1.4 times (68% to 98%).
- Residual tumor volume decreased by a factor of 16 (32% to 2.0%).
Conclusions:
- Additional FGR enhances the completeness of brain tumor resection.
- FGR leads to more consistent resection outcomes across different cases.