Radiation dose of CT enterography

the retrieved excerpts do not report a specific effective-dose range (in mSv) for a standard adult CT enterography protocol. they reference radiation in relative terms: CD patients accumulate high cumulative doses (CT accounting for up to ~84.7% of the total, with ~15.5% exceeding 75 mSv over a lifetime) ¹, a "potentially harmful" threshold is cited as ≥50 mSv (≈five abdominal CT examinations) ², and low-dose/multidetector techniques can reduce exposure by roughly 10–60% ², but a per-exam CTE dose figure is not given. ^1–3

What is known:

• One cohort found CT contributed up to 84.7% of cumulative diagnostic dose and 15.5% of CD patients exceeded 75 mSv lifetime. ¹
• A ≥50 mSv lifetime threshold is described as potentially harmful, roughly equivalent to five abdominal CT examinations. ²
• Multidetector CT and low-dose protocols can reduce exposure by approximately 10–60% while retaining diagnostic accuracy. ²
• Conventional fluoroscopic evaluation uses about one-third the radiation of its CT equivalent. ³

What is unknown / caveats:

• No per-exam effective-dose (mSv) figure for standard adult CTE in the retrieved excerpts
• This corpus is Crohn's-surgery focused and may not index radiology dose-protocol literature
• The specific mSv range for a single standard adult CTE is not stated in the provided evidence.

References

1. Pozza A, Scarpa M, Lacognata C, Corbetti F, Mescoli C, Ruffolo C, Frego M, D'Incà R, Bardini R, Rugge M, Sturniolo GC, Angriman I. Magnetic resonance enterography for Crohn's disease: what the surgeon can take home. J Gastrointest Surg. 2011;15(10):1689-98. PMID: 21796461.

2. Minordi LM, D'Angelo FB, Privitera G, Papa A, Larosa L, Laterza L, Scaldaferri F, Barbaro B, Carbone L, Pugliese D. Crohn's Disease: Radiological Answers to Clinical Questions and Review of the Literature. J Clin Med. 2024;13(14):4145. PMID: 39064186.

3. Schwartzberg DM, Brandstetter S, Grucela AL. Crohn's Disease of the Esophagus, Duodenum, and Stomach. Clin Colon Rectal Surg. 2019;32(4):231-242. PMID: 31275069.

For educational use only, not a substitute for clinical judgement or medical advice. Consult qualified clinicians for diagnosis and treatment decisions. This tool may contain errors; use the flag button below to report inaccurate or harmful content.

Draft, generated by the IBDology RAG and not yet clinician-reviewed. Answers are grounded in the retrieved literature listed above; a high faithfulness score means the answer matches its sources, not that the sources are correct.