Revision History



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




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