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'The Real Harm Is in Missing the Diagnosis' with Dr. Ehsan Samei
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In this episode of Frame by Frame, host Chris St John is joined by Dr. Ehsan Samei, a leading medical physicist and advocate for patient-centered imaging.
Dr. Samei challenges long-held assumptions about radiation risk, urging a shift away from fear-based thinking. He critiques the limitations of population-based radiation thresholds and emphasizes why shared decision-making should drive medical imaging practices.
Through accessible examples, Dr. Samei explains why delayed or denied imaging can often pose a greater risk than the radiation itself. He also breaks down the widely debated Linear No-Threshold model and how it’s frequently misunderstood in clinical contexts.
As Chief Imaging Physicist at Duke University and a Distinguished Professor, Dr. Samei offers insights that are both scientifically grounded and deeply human. Whether you’re a clinician or simply someone curious about your healthcare, this episode provides a vital rethink of how we talk about imaging, risk, and patient trust.
Chapters:
[00:00] Intro & Welcome with Dr. Ehsan Samei
[02:24] Medical Imaging: A Gift to Modern Healthcare
[06:46] Patient Autonomy and Shared Decision-Making
[11:04] Understanding the Linear No-Threshold Model
[17:30] Cancer Risk: Separating Facts from Fear
[25:20] Radiation Doses: High vs Low Exposure Data
[29:52] Thresholds vs Clinical Guidance in Practice
[39:13] Communicating Benefits to Patients
[44:59] Key Takeaways & Preview of Part 2
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