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 Coronary CTA

Technique Parameters

Required Series

Best phase of contrast enhanced axial images (only submit the one best phase set of axial images and the required screen shots. Additional cardiac phases, multiplanar views and reconstructions should not be submitted)

Dose Reduction

Required (dose modulation, prospective gating or automatic dose reduction)

Reconstructed Slice Width

≤ 1 mm

Reconstruction Algorithm

Standard

CTDIvol

  • ≤ 50 mGy prospective gating 

  • ≤ 150 mGy retrospective gating 

  • CTDIvol information on dose received is required

DLP

  • < 1400 mGy-cm for retrospective gating 

  • < 700 mGy-cm for prospective gating

Gating

The use of prospective gating is encouraged whenever possible (if retrospective gating is used, include justification in the “other symptoms, abnormal studies or pertinent information” section of the Clinical Test Image Datasheet)

Anatomical Coverage

Coverage

Scan must cover the entire coronary circulation and heart (Additional calcium score images are not recommended. Calcium score scans should not be used in patients with already known CAD.)

Required Screen Shots

  • CTDIvol and DLP  

  • Scout with locations displayed 

  • Curved or straight reformat of 2 cm of LAD 

  • Curved or straight reformat of 2 cm of LCX 

  • Curved or straight reformat of 2 cm of OM1 or first large OM or RCA




Revision History for this Article

Date

Section

Description of Revision(s)

12-12-19

All

Article created; FAQs incorporated

12-12-19Technique ParametersAdded DLP requirements
12-19-19CoverageChanged coverage to "Scan must cover the entire coronary circulation and heart". It was incorrectly listed as lung apex to below lung bases.
1-14-2020Required Screen ShotsAdded "or RCA"




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