What is CT head and NCCT head? NCCT Scan: Purpose, Procedure & Price [2023] • BookmeriLab NCCT Head or brain full form is a non-contrast CT scan of the head. It is done to diagnose infarction, which is the usual cause of headaches, dizziness, seizures, tumours, stroke, haemorrhage, TIA, and trauma to the patient's bones. The doctor may recommend the use of Contrast material during the scan.