광섬유 압력 변환기를 사용하여 쥐에서 경막외 Intracranial 압력 측정

Overview

This article describes a novel technique for measuring intracranial pressure (ICP) in anaesthetized rats using a minimally invasive fibre-optic pressure sensing system. The method aims to provide accurate ICP measurements without causing significant brain trauma, making it applicable to various experimental models.

Key Study Components

Area of Science

• Neuroscience
• Biomedical Engineering
• Animal Models

Background

• Intracranial pressure is a critical parameter in neurological studies.
• Traditional methods of measuring ICP can be invasive and traumatic.
• Minimally invasive techniques are needed to improve animal welfare.
• Fibre-optic technology offers a potential solution for accurate measurements.

Purpose of Study

• To develop a technique for accurate ICP measurement in rats.
• To minimize brain trauma during the measurement process.
• To enable the use of this technique in various experimental models.

Methods Used

• Two small holes are burred in the skull of the rat.
• An ICP monitoring screw and an anchoring screw are inserted and cemented in place.
• A fiber optic pressure transducer is inserted into the monitoring screw.
• An airtight seal is formed around the pressure transducer to seal the cranial vault.

Main Results

• The technique allows for the measurement of ICP in the epidural space.
• Results can be obtained that show a physiological trace of intracranial pressure.
• The method demonstrates minimal impact on brain tissue.
• It can be applied in various experimental settings.

Conclusions

• This novel technique provides a reliable method for ICP measurement.
• It enhances the ability to study intracranial pressure dynamics in animal models.
• The method's minimally invasive nature improves animal welfare.

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