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Scalp marking for a craniotomy using a laser pointer during preoperative computed tomographic imaging: technical note
1Department of Neurosurgery, Takarazuka Municipal Hospital, Hyogo, Japan. sig-kubo@momo.so-net.ne.jp
Neurosurgery
|May 12, 2000
Summary
A new laser pointer technique accurately localizes superficial intracranial lesions on the scalp during computed tomography (CT) scans, aiding precise surgical planning for craniotomies.
Area of Science:
- Neurosurgery
- Medical Imaging
- Surgical Technology
Background:
- Preoperative localization of superficial intracranial lesions is crucial for accurate surgical site identification.
- Computed tomography (CT) imaging alone can present challenges for precise scalp localization.
Purpose of the Study:
- To present a simple, cost-effective laser pointer method for preoperative localization of intracranial lesions.
- To improve the accuracy of burr hole placement and craniotomy siting.
Main Methods:
- A laser projector is used during CT scans to mark the scalp.
- The device utilizes the angle of incidence measured by the CT scanner software.
- The laser is directed from the gantry at the same angle as the CT image to the patient's scalp.
Main Results:
- The technique was successfully applied in five patients with superficial brain tumors.
- Precise tumor localization on the scalp was confirmed during surgery.
- The method demonstrated high accuracy in marking the craniotomy area.
Conclusions:
- This laser pointer technique offers an easy-to-perform and valuable tool for preoperative craniotomy planning.
- The associated device is inexpensive and simple to construct.
- The method enhances surgical precision for superficial intracranial lesions.