Moment: How One MRI Can Lead to Years of Unnecessary Treatment
Rena Malik, MD Podcast
Screening biases: lead and length bias
Davenport explains lead-time and length biases and why sensitive imaging overrepresents indolent disease.
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
Let's Connect!:
WEBSITE: http://www.renamalikmd.com
YOUTUBE: https://www.youtube.com/@RenaMalikMD
INSTAGRAM: http://www.instagram.com/RenaMalikMD
TWITTER: http://twitter.com/RenaMalikMD
FACEBOOK: https://www.facebook.com/RenaMalikMD/
LINKEDIN: https://www.linkedin.com/in/renadmalik
PINTEREST: https://www.pinterest.com/renamalikmd/
TIKTOK: https://www.tiktok.com/RenaMalikMD
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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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