Contrast use in whole-body MRIs

In this episode, Dr. Rena Malik explores the complexities of whole body MRI screening with guest Dr. Matthew Davenport. They discuss the pros and cons of using contrast material, the risks of overdiagnosis, and the potential harms of detecting indolent cancers or incidental findings in low-risk populations. Through vivid examples and expert explanation, the conversation highlights the importance of targeted cancer screening and making informed choices about imaging.

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▶️Chapters:

00:00 Use of contrast in MRIs
00:25 Trade-offs: accuracy vs. harm
00:59 Substantial harm from findings
01:51 Thyroid nodules and overdiagnosis
03:15 Retrospective outcomes and unintended harm
04:41 Screening for aggressive vs. indolent cancers
07:06 Prostate cancer screening example
08:24 Complications from incidental findings
09:33 Cascade of care after incidental findings

Stay connected with Dr. Matthew Davenport on social media for daily insights and updates. Don’t miss out—follow him now and check out these links!

LinkedIn profile: https://www.linkedin.com/in/matthew-davenport-md-mba-037184286

Work profile: https://medschool.umich.edu/profile/2315/matthew-s-davenport

Most relevant article: https://www.ajronline.org/doi/10.2214/AJR.22.28926

Next event is grand rounds speaker at Stanford: https://med.stanford.edu/radiology/education/grandrounds/2025-26.html#january

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DISCLAIMER: This podcast is purely educational and does not constitute medical advice. The content of this podcast is my personal opinion, and not that of my employer(s). Use of this information is at your own risk. Rena Malik, M.D. will not assume any liability for any direct or indirect losses or damages that may result from the use of information contained in this podcast including but not limited to economic loss, injury, illness or death.

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