Table 2:

Inclusion criteria

Component	Details
Study design	Evidence-based guidelines that meet AGREE-II checklist items 7, 8 and 917^,18 Question 7. Systematic methods were used to search for evidence: Searched and named at least 1 electronic database using an electronic search strategy (e.g., MEDLINE, Embase, PubMed, CENTRAL) Question 8. The criteria for selecting the evidence are clearly described: Described a formal process for study selection; AND Reported the inclusion and exclusion criteria; OR If it is based on a systematic review but does not provide explicit methods. Question 9. The strengths and limitations of the body of evidence are clearly described: Performed critical appraisal on the included studies (e.g., risk of bias, describe study limitations); OR If it is based on a systematic review and GRADE is performed.
Population	Adults (≥ 18 yr) and/or children (< 18 yr)
Intervention/comparison	Recommendations on diagnostic imaging modalities (e.g., radiography, magnetic resonance imaging, computed tomography)
Outcomes	Diagnostic imaging recommendations for a clinical and diagnostic scenario identified by the expert panel
Timing	Published in the last 5 years (as of the date of the search)
Language	Published in English^*

Note: AGREE = Appraisal of Guidelines for Research & Evaluation, CENTRAL = Cochrane Central Register of Controlled Trials, GRADE = Grading of Recommendations Assessment, Development and Evaluation.
↵* Although the search strategy will not have a language filter, we will only include guidelines published in English. An appendix within the guideline will provide a list of potentially relevant guidelines published in other languages.