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    Right study, first time.

    Imaging Appropriateness Selector — type an indication, get the imaging studies rated for it, with adult and pediatric radiation levels. A clinical-workflow search interface informed by published imaging appropriateness criteria.

    For educational reference only. Clinical decisions require physician judgment of the individual patient. The Imaging Appropriateness Selector is a clinical-workflow search interface informed by the publicly published ACR Appropriateness Criteria® and supplemented by editorial commentary from a practicing interventional radiologist. ACR Appropriateness Criteria® is a registered trademark of the American College of Radiology. This tool is independent: not affiliated with, endorsed by, or licensed by the ACR. For the authoritative, unmodified source, visit acsearch.acr.org.

    How to use this tool

    Ask mode Type the indication, symptom set, or scenario in plain language — for example, "right lower quadrant pain with fever, suspected appendicitis". We match it to the closest published clinical scenario and return the studies rated for it, with adult and pediatric radiation levels. Patient vernacular is fine: "worst headache of life", "kidney stone", "PE workup".
    Browse mode Walk the published structure: pick a panel (e.g., Gastrointestinal, Neurologic), then a topic, then a clinical variant. Each variant returns the same procedure ratings and radiation levels — it's the deterministic path when you know exactly what you're looking for, or when Ask mode doesn't land on a confident match.

    Type an indication or scenario

    Recommended studies

    Source: ACR Appropriateness Criteria® — recommendations are from the published guidelines, not generated.

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    The Imaging Appropriateness Selector is one of dozens of free clinical and financial tools at GigHz, built by a practicing interventional radiologist. Browse the full set, or jump to complementary imaging tools.

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    Written and reviewed by Pouyan Golshani, MD, Interventional Radiologist — Last updated May 26, 2026

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