Cross-sectional imaging using X-ray and computer reconstruction
Expansion
Computed Tomography
Purpose
Workhorse modality for trauma, acute pathology, and oncology staging
Clinical Context
CT uses X-ray radiation with computer algorithms to reconstruct axial, coronal, and sagittal images. Faster than MRI; better for acute bleeding.
Related Terms
- MRI:
- Ultrasound:
- PET-CT:
Key Points
- CT is rapid, sensitive, and versatile - overuse is a concern due to radiation dose