Friends and Fans — I have retired from my work as a public intellectual, so Philosophy in Action is on indefinite hiatus. Please check out the voluminous archive of free podcasts, as well as the premium audio content still available for sale. My two books — Responsibility & Luck: A Defense of Praise and Blame and Explore Atlas Shrugged — are available for purchase too. Best wishes! — Diana Brickell (Hsieh)

Paul Hsieh on Radiology in Practice

Radio Interview: 18 December 2014

I interviewed Paul Hsieh on "Radiology in Practice" on 18 December 2014. Listen to or download this episode of Philosophy in Action Radio below.

Most people have seen cool medical imaging devices such as CT and MRI scanners on TV shows. But what do those machines really do? Advanced medical imaging has revolutionized patient care in the past 25 years, allowing doctors to make diagnoses more accurately, quickly, and safely than ever before. Radiologist Dr. Paul Hsieh discussed the basics of modern radiology (x-rays, MRI, ultrasound, and nuclear medicine), how these different tests work, what they show about the human body, and how they help doctors take better care of patients.

Dr. Paul Hsieh is a radiologist in practice in South Denver. He received his MD from the University of Michigan, then completed a residency in diagnostic radiology at Washington University in St. Louis, and an MRI fellowship at Cedars-Sinai Medical Center in Los Angeles. Prior to entering private practice, he was an Assistant Professor of Radiology at Washington University School of Medicine. He is the co-founder of Freedom and Individual Rights in Medicine (FIRM). He has written scores of columns, mostly on health care policy, as well as articles for The Objective Standard. He blogs offbeat tech news at GeekPress.

Tags: Health, Medicine, Science, Technology

Note: My apologies for the sub-optimal audio quality. My fancy microphone wasn't working.


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  • Duration: 1:17:28
  • Download: MP3 File (44.3 MB)

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About the Podcast

The topics covered in this episode were:
  • About radiology
  • The different imaging modalities
  • X-rays
  • CAT Scans
  • MRI Scans
  • Ultrasound
  • Nuclear Medicine
  • PET Scans
  • Interventional Radiology
  • Radiation dangers
  • Medical education
  • Access to the radiologist
  • Specialization in radiology
  • Paul's work
  • Paul's choice of radiology

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About Philosophy in Action

I'm Dr. Diana Brickell (formerly Diana Hsieh). I'm a philosopher, and I've long specialized in the application of rational principles to the challenges of real life. I completed my Ph.D in philosophy from the University of Colorado at Boulder in 2009. I retired from work as a public intellectual in 2015.

From September 2009 to September 2015, I produced a radio show and podcast, Philosophy in Action Radio. In the primary show, my co-host Greg Perkins and I answered questions applying rational principles to the challenges of real life. We broadcast live over the internet on Sunday mornings.

You can listen to these 362 podcasts by subscribing to the Podcast RSS Feed. You can also peruse the podcast archive, where episodes and questions are sorted by date and by topic.

My first book, Responsibility & Luck: A Defense of Praise and Blame, can be purchased in paperback and Kindle. The book defends the justice of moral praise and blame of persons using an Aristotelian theory of moral responsibility, thereby refuting Thomas Nagel's "problem of moral luck." My second book (and online course), Explore Atlas Shrugged, is a fantastic resource for anyone wishing to study Ayn Rand's epic novel in depth.

You can also read my blog NoodleFood and subscribe to its Blog RSS Feed.

I can be reached via e-mail to diana@philosophyinaction.com.

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