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Variant 1: Follow-up of the asymptomatic patient with a total hip arthroplasty.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
US hip Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Variant 2: Total hip arthroplasty, evaluating suspected component malposition.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
Fluoroscopy hip May be appropriate Varies Varies 4 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast May be appropriate ☢☢☢ 1-10 mSv 6 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Variant 3: Evaluating patients with a painful primary total hip arthroplasty: infection not excluded.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
Aspiration hip Usually appropriate Varies Varies 9 n/a 0 0 0 0 0 0 0 0 0
Arthrography and aspiration hip May be appropriate Varies Varies 6 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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
MRI hip without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast May be appropriate ☢☢☢ 1-10 mSv 4 n/a 0 0 0 0 0 0 0 0 0
FDG-PET hip May be appropriate ☢☢☢ 1-10 mSv 4 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip May be appropriate ☢☢☢ 1-10 mSv 4 n/a 0 0 0 0 0 0 0 0 0
In-111 WBC and Tc-99m sulfur colloid scan hip May be appropriate ☢☢☢☢ 10-30 mSv 5 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan and Ga-67 scan hip May be appropriate ☢☢☢☢ 10-30 mSv 4 n/a 0 0 0 0 0 0 0 0 0
US hip Usually not appropriate O 0 mSv O 0 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
F18-fluoride PET hip Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
Variant 4: Evaluating patients with a painful primary total hip arthroplasty: suspect aseptic loosening (infection excluded).
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
X-ray arthrography hip May be appropriate ☢ <0.1 mSv 5 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
Tc-99m nuclear arthrography hip May be appropriate ☢☢☢ 1-10 mSv 4 n/a 0 0 0 0 0 0 0 0 0
Image-guided anesthetic injection of hip Usually not appropriate Varies Varies 3 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
F18-fluoride PET hip Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
FDG-PET hip Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
Variant 5: Evaluating suspected particle disease (aggressive granulomatous disease, infection excluded).
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 7 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually appropriate ☢☢☢ 1-10 mSv 8 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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 hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
FDG-PET hip Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
Variant 6: Evaluating patients with a painful primary metal-on-metal total hip arthroplasty or surface replacement: evaluate for aseptic lymphocyte-dominated vasculitis-associated lesion.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
MRI hip without IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
US hip May be appropriate O 0 mSv O 0 mSv [ped] 6 n/a 0 0 0 0 0 0 0 0 0
Radiography hip May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
Aspiration hip May be appropriate Varies Varies 5 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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 hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
Variant 7: Total hip arthroplasty, trochanteric pain; suspect abductor injury or trochanteric bursitis.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
US hip Usually appropriate O 0 mSv O 0 mSv [ped] 7 n/a 0 0 0 0 0 0 0 0 0
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
X-ray arthrography hip Usually not appropriate ☢ <0.1 mSv 3 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 3 n/a 0 0 0 0 0 0 0 0 0
Variant 8: Total hip arthroplasty; suspect iliopsoas bursitis or tendinitis.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
US hip Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
Injection anesthetic iliopsoas tendon May be appropriate Varies Varies 6 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast May be appropriate ☢☢☢ 1-10 mSv 4 n/a 0 0 0 0 0 0 0 0 0
X-ray arthrography hip Usually not appropriate ☢ <0.1 mSv 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Variant 9: Total hip arthroplasty, suspect nerve damage.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
MRI hip without IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
US hip May be appropriate O 0 mSv O 0 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
Radiography hip May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
MRI hip 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
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 2 n/a 0 0 0 0 0 0 0 0 0
Variant 10: Total hip arthroplasty, evaluate heterotopic bone.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually appropriate ☢☢☢ 1-10 mSv 7 n/a 0 0 0 0 0 0 0 0 0
US hip May be appropriate O 0 mSv O 0 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
Variant 11: Total hip arthroplasty, suspect periprosthetic fracture.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
Radiography hip Usually appropriate ☢☢☢ 1-10 mSv 9 n/a 0 0 0 0 0 0 0 0 0
CT hip without IV contrast Usually appropriate ☢☢☢ 1-10 mSv 8 n/a 0 0 0 0 0 0 0 0 0
MRI hip without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
Tc-99m bone scan hip May be appropriate ☢☢☢ 1-10 mSv 5 n/a 0 0 0 0 0 0 0 0 0
US hip Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
MRI hip without and with IV contrast Usually not appropriate O 0 mSv O 0 mSv [ped] 1 n/a 0 0 0 0 0 0 0 0 0
CT hip with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 n/a 0 0 0 0 0 0 0 0 0
CT hip without and with IV contrast Usually not appropriate ☢☢☢ 1-10 mSv 1 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.