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Screen-imaging guidance using a modified portable video macroscope for middle cerebral artery occlusion
Xingbao Zhu1, Junli Luo1, Yun Liu1
1Department of Neurosurgery, Kunming General Hospital, Chengdu Military Area Command of Chinese PLA, Kunming 650032, Yunnan Province, China.
Neural Regeneration Research
|February 28, 2015
Summary
A novel telescopic system with screen-imaging guidance offers an advantage over traditional operating microscopes for micro-neurosurgery. This "long distance observation and short distance operation" approach enables clearer visualization and minimally invasive procedures.
Area of Science:
- Neurosurgery
- Medical Imaging
- Surgical Technology
Background:
- Operating microscopes have limited focal lengths, restricting simultaneous viewing and surgical access.
- Telescopic systems offer a longer focal length, allowing surgeons to operate from a distance, improving visualization and access.
Purpose of the Study:
- To develop and evaluate a novel telescopic system using screen-imaging guidance for micro-neurosurgery.
- To assess the efficacy of this system in establishing a middle cerebral artery occlusion model in rats.
Main Methods:
- A modified portable video macroscope was constructed using a Computar macro lens, USB CCD camera, and laptop for screen display.
- The system was employed to create a middle cerebral artery occlusion model in rats, with procedures guided by screen imaging.
- Surgical outcomes were evaluated using a modified neurological score system, assessing model establishment time, sensorimotor deficit, and infarct volume.
Main Results:
- The modified macroscope provided appropriate magnification (5-20×) even with the lens positioned 800 mm from the surgical field.
- Screen-imaging guidance facilitated accurate, smooth, minimally invasive, and easier surgical procedures.
- The success rate for establishing the middle cerebral artery occlusion model was 74.07%, with no significant differences in key outcome metrics compared to conventional methods.
Conclusions:
- The telescopic lens system is effective for screen-based surgical operations, enabling "long distance observation and short distance operation."
- Screen-imaging guidance with a modified portable video macroscope is a viable tool for establishing animal models and performing micro-neurosurgery.
