American College of Radiology
ACR Appropriateness Criteria®

Occupational Lung Diseases

Variant 1: Silica exposure, suspected silicosis.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
X-ray chest Usually appropriate ☢ <0.1 mSv ☢ <0.03 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
CT chest without IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
CT chest with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT chest Usually not appropriate ☢☢☢☢ 10-30 mSv 3 n/a 0 0 0 0 0 0 0 0 0
CT chest without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
Variant 2: Coal dust exposure, suspected pneumoconiosis.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
CT chest without IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
X-ray chest Usually appropriate ☢ <0.1 mSv ☢ <0.03 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
CT chest with IV contrast May be appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT chest Usually not appropriate ☢☢☢☢ 10-30 mSv 3 n/a 0 0 0 0 0 0 0 0 0
CT chest without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
Variant 3: Asbestos exposure, suspected interstitial lung disease.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
CT chest without IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
X-ray chest Usually appropriate ☢ <0.1 mSv ☢ <0.03 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
CT chest with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT chest Usually not appropriate ☢☢☢☢ 10-30 mSv 3 n/a 0 0 0 0 0 0 0 0 0
CT chest without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
MRI chest without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 2 n/a 0 0 0 0 0 0 0 0 0
Variant 4: Asbestos exposure, suspected mesothelioma.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
CT chest with IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
X-ray chest Usually appropriate ☢ <0.1 mSv ☢ <0.03 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
CT chest without IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 7 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT chest May be appropriate ☢☢☢☢ 10-30 mSv 6 n/a 0 0 0 0 0 0 0 0 0
MRI chest without and with IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
CT chest without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
MRI chest without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
Appendix Key

A more complete discussion of the items presented below can be found by accessing the supporting documents at the designated hyperlinks.

Appropriateness Category:The panel’s recommendation for a procedure based on the assessment of the risks and benefits of performing the procedure for the specified clinical scenario.

SOE: Strength of Evidence. The assessment of the amount and quality of evidence found in the peer reviewed medical literature for an appropriateness recommendation.

  • References: The citation number and PMID for the reference(s) associated with the recommendation.
  • Study Quality: The assessment of the quality of an individual reference based on the number of study quality elements described in the reference.

RRL: Relative Radiation Level. A population based assessment of the amount of radiation a typical patient may be exposed to during the specified procedure.

Rating: The final rating (1-9 scale) for the procedure as determined by the panel during rating rounds.

Median: The median rating (1-9 scale) for the procedure as determined by the panel during rating rounds.

Final tabulations: A histogram showing the number of panel members who rated the procedure as noted in the column heading (ie, 1, 2, 3, etc.).

Additional supporting documents about the AC methodology and processes can be found at www.acr.org/ac.