Interpretable Models for Detecting and Monitoring Elevated Intracranial Pressure
This work addresses the problem of non-invasive ICP monitoring for neurological patients, offering an incremental improvement in interpretability and efficiency over existing methods.
The paper tackles the challenge of detecting elevated intracranial pressure (ICP) by monitoring the optic nerve sheath diameter in ultrasound videos, proposing two interpretable systems that outperform baselines and are validated by subject matter experts for clinical utility.
Detecting elevated intracranial pressure (ICP) is crucial in diagnosing and managing various neurological conditions. These fluctuations in pressure are transmitted to the optic nerve sheath (ONS), resulting in changes to its diameter, which can then be detected using ultrasound imaging devices. However, interpreting sonographic images of the ONS can be challenging. In this work, we propose two systems that actively monitor the ONS diameter throughout an ultrasound video and make a final prediction as to whether ICP is elevated. To construct our systems, we leverage subject matter expert (SME) guidance, structuring our processing pipeline according to their collection procedure, while also prioritizing interpretability and computational efficiency. We conduct a number of experiments, demonstrating that our proposed systems are able to outperform various baselines. One of our SMEs then manually validates our top system's performance, lending further credibility to our approach while demonstrating its potential utility in a clinical setting.