Intraoperative Micro-Measurement in Neurosurgical Microsurgery: A Technical Note

OBJECTIVE: In neurosurgical microsurgery, understanding the accurate size of microstructures is essential to perform operation safely and less invasively. We here describe a simple method of measuring the size of microvessels using a digital image as a microscale. MATERIALS AND METHODS: The digital image was made as a microscale on the computer. We measured the size of intracranial microstructures using the microscale. RESULTS: We accurately measured the size of the vertebral artery perforator of 1 mm or less using the adjusted microscale on the computer. CONCLUSIONS: The development of a microscale is easy and renders the measurement of microstructures, sized 1 mm or less, feasible, and accurate.