Monthly Archives: March 2015

Consumer Reports Overstates Cardiac CT Radiation Dose

  Consumer Reports regularly publishes health information to aid the consumer/patient in making decisions. And that’s a good thing. But also important is having the most current information, which their January 27, 2015 article, titled “The surprising dangers of CT scans and X-rays,” does not.

All of the cautions about imaging tests that are listed in the Consumer Reports article are valid: ask why the test is necessary; check the credentials of the imaging specialist; ask for the lowest effective dose; avoid unnecessary repeat scans.

But one important piece of data is almost a decade old and, as a result, is potentially misleading. I’m talking about the radiation dose from a Cardiac CT scan. The article states that a Cardiac CT Angiogram (CTA) exposes the patient to 12 mSv of ionizing radiation, or 120 times that of a chest X-ray. This was true years ago, when CTA was first being used to diagnose coronary artery disease. But it is not true today. Continue reading


Filed under Cardiac CT, Imaging, Media Coverage, Non-Invasive Testing