Sources and editorial policy

Where the content comes from, how it is checked, and how errors are corrected.

What this reference is

An independent educational reference written by a practising MRI technologist for other technologists. It is published under the product name only.

It is not accredited or endorsed by any medical body, hospital or manufacturer, and it has not been formally peer reviewed. It does not replace your department's approved protocols, the radiologist's instructions, the MR safety officer or the manufacturer's instructions.

How the content is checked

Protocols, contrast timing and safety statements are checked against the published guidance listed below. Where a protocol follows a specific guideline, the guideline is named on that protocol.

Sequence and option names are checked against the manufacturers' own cross-vendor documents and operator manuals.

Parameter values are typical starting points at 1.5 T. They are not settings for a particular scanner, coil or patient.

Corrections

If you find an error, write to mritechref@gmail.com with the page and the source that disagrees. Confirmed errors are corrected in the next release and listed in the version history.

Version history

v2.0, November 2026. First public release. Last check against the sources below: November 2026.

Sources

1. ACR Manual on MR Safety, 2024 edition, with the changes effective February 2026. American College of Radiology.
2. ACR Manual on Contrast Media, including the 2023 gadopiclenol and 2024 classification updates. ACR Committee on Drugs and Contrast Media.
3. Weinreb JC et al. Use of intravenous gadolinium-based contrast media in patients with kidney disease: ACR–NKF consensus statements. Radiology 2021;298:28–35.
4. IEC 60601-2-33, Edition 4.0 (2022). Steckner MC et al. Transitioning from 0.5 to 0.9 mT. Magn Reson Med 2024;92:2237–2245.
5. ASTM F2503. Standard practice for marking medical devices and other items for safety in the MR environment.
6. Turkbey B et al. PI-RADS version 2.1. Eur Urol 2019;76:340–351.
7. ACR LI-RADS v2018 CT/MRI core and technical recommendations.
8. Mann RM et al. Breast MRI: guidelines from the European Society of Breast Imaging. Eur Radiol 2008;18:1307–1318. ACR Breast MRI Accreditation Program requirements.
9. Kramer CM et al. Standardized cardiovascular magnetic resonance imaging (CMR) protocols: 2020 update. J Cardiovasc Magn Reson 2020;22:17.
10. Wattjes MP et al. 2021 MAGNIMS–CMSC–NAIMS consensus recommendations on the use of MRI in patients with multiple sclerosis. Lancet Neurol 2021;20:653–670.
11. Bernasconi A et al. Recommendations for the use of structural MRI in the care of patients with epilepsy (HARNESS-MRI). Epilepsia 2019;60:1054–1068.
12. Beets-Tan RGH et al. MRI for clinical management of rectal cancer: updated ESGAR consensus recommendations. Eur Radiol 2018;28:1465–1475.
13. Taylor SA et al. The first joint ESGAR/ESPR consensus statement on the technical performance of cross-sectional small bowel and colonic imaging. Eur Radiol 2017;27:2570–2582.
14. Lambert RGW et al. Standardised image acquisition protocol for MRI of the sacroiliac joints: ASAS–SPARTAN consensus. Ann Rheum Dis 2024;83:1628–1635.
15. Radiopaedia.org: MRI protocol, sequence and artifact articles. Elster AD: MRIquestions.com (Questions and Answers in MRI).
16. Siemens Healthineers: MRI Acronyms, Cross-Vendor Comparisons. Operator manuals and application guides: GE HealthCare, Philips, Siemens Healthineers.

Educational reference. It does not replace your site protocols, the radiologist's instructions, the MR safety officer, or the manufacturer's instructions for any implant, device or contrast agent. Parameter values are typical starting points at 1.5 T and must be adapted to the scanner, coil and patient.