SUSCEPTIBILITY WEIGHTED IMAGING TECHNIQUE UTILITY IN DIVERSE NEUROLOGICAL ENTITIES

Background: Susceptibility Weighted Imaging (SWI) is a novel modality based upon GE (Gradient Echo) sequences that employ differences in susceptibility of various paramagnetic as well diamagnetic substances aid the better diagnosis neurological entities such intracranial tumors, vascular malformations, arterial stroke, venous hemorrhagic infarcts. Objective:To assess utility SWI diseases. Methods: The retrospective observational study was held tertiary care medical center India 2021. Multiple diseases on were analyzed 100 patients with complaints. inclusion criteria included patient all age group who presented signs and symptoms. exclusion presence post-operative non-compatible orthopedic hardware cardiac pacemakers, cochlear implants situ. Results: majority males > 60 years (23%) age. Among patients, most had tumors (18%), followed by trauma (16%), stroke (15%), hemorrhage (14%). Most 14 have intraparenchymal 9 (64.29%). There were10 sinuses thrombosis 15 cases amongst whom middle cerebral artery (46.66%). 13 pathologies amyloid angiopathy 4 (30.77%). primary (83.33%) 10 (66.67%) newly diagnosed 11 (61.11%) hemorrhage, 3 (16.67%) calcification, (22.22%) both calcification. According to grading tumor intratumoral score (ITSS), grade III. On correlation MR Spectroscopy (MRS) perfusion (MRP) study, 6 (100%) III showed hyperperfusion MRP raised choline/Creatinine ratio. than CT (P<0.05) detecting trauma, sinus thrombosis, pathologies, tumors. Conclusion: helpful imaging tool neuroradiological practice should be incorporated into standard procedures. It beneficial identifying hemorrhages, low-flow abnormalities, diffuse axonal injury, neurodegenerative illnesses. In addition, it supplementary sequence distinguishing calcium from brain categorizing