17 May 2019 This model overlaps the patient's brain and allows surgeons to recognise the exact place at which they are working during surgery. This prevents locational errors that can result in serious neurological deficits for the patient. Neuronavigation also allows for better definition: Of surgical approaches Of the limits of removal of the tumours It also guides the surgeon to the exact point for a biopsy or placing a deep brain electrode. Traditional neuronavigation has some limitations. One is a so-called “brain shift" that occurs during surgery. The location of the brain’s structures can change when it is manipulated. Even if this location change is only a few millimetres, there is a risk that orientation is being based on a map that is no longer up-to-date. To overcome this problem, new systems can re-model the three-dimensional model (i.e. the neurosurgeon’s map) as often as necessary during the procedure. Thanks to the new images continuously captured by the CT in the operating theatre, this system enables the surgeon control: The degree of removal of lesions The efficacy of the surgical procedure. This article was written with the support of physicians and other clinical professionals from the Hospital da Luz network. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.
