Important: All items in bold in the Technique Parameters and Anatomic Coverage sections below are required to successfully achieve accreditation. CTDIvol information is required for each study. Either include a screen save of the dose with the images, or enter the dose as displayed by the scanner in the Clinical Test Image Data Sheet.
Adult Chest |
Technique Parameters |
Required Series | IV contrast may be used but is not required |
Reconstructed Slice Width | ≤ 5 mm |
Reconstruction Algorithm | Standard or equivalent |
CTDIvol | Reference value: 21 mGy* (Radiation dose reduction methods such as Automatic Exposure Control methods, e.g. Tube Current Modulation, are encouraged) |
Anatomical Coverage |
Coverage | Lung Apex to below the lung bases |
Adult Pulmonary Embolus |
Technique Parameters |
Required Series | IV contrast enhanced |
Reconstructed Slice Width | ≤ 3 mm |
Reconstruction Algorithm | Standard or equivalent |
CTDIvol | There are no reference values for this examination. Radiation dose reduction methods such as Automatic Exposure Control methods (e.g. Tube Current Modulation) are encouraged. |
Anatomical Coverage |
Coverage | Lung apices through lung bases |
Adult HRCT |
Technique Parameters |
Required Series | Non-enhanced |
Reconstructed Slice Width | ≤ 1.5 mm |
Reconstruction Algorithm | Sharp (bone or equivalent high spatial frequency) |
Reconstructed Spacing | ≤ 10 mm (may be contiguous from helical scans or spaced interval acquisition) |
CTDIvol | There are no reference values for this examination
|
Anatomical Coverage |
Coverage | Lung apices through lung bases |
Adult Aortic Dissection |
Technique Parameters |
Required Series | IV contrast enhanced |
Reconstructed Slice Width | ≤ 3 mm |
Reconstruction Algorithm | Standard |
CTDIvol | There are no reference values for this examination |
Anatomical Coverage |
Coverage | Lung apices through the level of the aortoiliac bifurcation |
*National Council on Radiation Protection and Measurement Diagnostic. Reference levels and achievable doses in medical and dental imaging: recommendations for the United States. Bethesda, MD. NCRP Report #172; 2012. (The 21 mGy reference value for the adult chest study is based on an average size patient and may be higher for larger sized patients)
Revision History for this Article |
Date | Section | Description of Revision(s) |
12-12-19 | All | Article created; FAQs incorporated; No criteria changes |
