The research aims to create a new tool to help neurosurgeons identify brain tumour margins more accurately. This is essential as any residual tumour in the brain after surgery can lead to the recurrence of tumours, causing the patient’s survival chances to reduce considerably. The brain tumour margin delineation probe combines two imaging techniques: electrical impedance tomography (EIT) and ultrasound. These two techniques give doctors complementary information about the tissue being imaged, providing a clearer picture of the tumour location. The EIT system being developed for this probe will be able to image the surface of the brain and a few millimeters underneath it. The ultrasound part of the tool will use cutting-edge techniques called elastography and H-Scan, which will help create a detailed map of the tumour’s shape and location, improving the resolution and accuracy. The researchers will be working with doctors and other experts to ensure that the probe is designed to meet the needs of medical professionals. The effectiveness of the probe will be tested in tissue samples and animal models with brain tumours. The successful completion of the proposed work could help doctors more safely and effectively remove brain tumours, with significant benefits for patients.