Overview
Head CT is rapid and widely available for acute neurologic assessment. It detects hemorrhage fractures and mass effect. CT is the first line tool in many emergency settings.
Trauma and Hemorrhage
CT identifies acute intracranial hemorrhage and skull fractures. Rapid detection guides neurosurgical and critical care interventions. Repeat imaging monitors evolution of findings.
Chronic Disease
CT evaluates chronic sinus disease calcifications and bone pathology. It complements MRI for certain indications and surgical planning. Non contrast and contrast enhanced protocols are used as appropriate.
Limitations and Complementary Imaging
CT has limited soft tissue contrast compared with MRI. MRI provides superior evaluation of brain parenchyma and posterior fossa. Choice of modality depends on clinical question and timing.