Quality Assurance (QA) of Computed Tomography:
CT Scan Machine
Test Conducted as per AERB Safety Code No.: AERB/RF-MED/SC-3 (Rev. 2)
Mechanical Safety Performance Tests
- Alignment of Table to Gantry
- Accuracy of Gantry Tilt
- Table Indexing Accuracy
Radiation Safety Performance Tests
- Slice Thickness
- Accuracy of Operating Potential
- Total Filtration
- Accuracy of Timer
- Linearity of Radiation Output (mA/mAs Linearity)
- Reproducibility of radiation output
- Radiation Dose Test [Weighted Computed Tomography Dose Index (CTDIW) for Head and Body Phantom]
- Low contrast resolution
- High contrast resolution
- Radiation Leakage Level from X-ray Tube Housing