Diagnostic Performance of TOF, 4D MRA, ASL and SWAN sequences in the Post-Radiosurgery Monitoring of Brain Arteriovenous Malformation: Systematic Review and Meta-Analysis

Brain Arteriovenous malformations (AVMs) are congenital anomalies of the cerebrovascular system, often discovered incidentally or through symptomatic presentations such as intracranial hemorrhage, seizure, headache, or neurological deficits. Various treatment modalities exist for AVMs, including radiosurgery, a treatment modality that is noninvasive and efficient. Accurate imaging is crucial for risk assessment, treatment planning, and monitoring of these patients before and after radiosurgery. Currently, Digital Subtraction Angiography (DSA) stands as the preferred imaging modality. Despite its efficacy, DSA is notably invasive, presenting inherent risks to the patients. This systematic review and meta-analysis aim to evaluate the efficacy of magnetic resonance imaging (MRI) sequences for monitoring brain AVMs after radiosurgery.