We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Editor's Correspondence |

President Obama’s Coronary Calcium Scan

Andrew J. Einstein, MD, PhD
Arch Intern Med. 2010;170(13):1175-1176. doi:10.1001/archinternmed.2010.212.
Text Size: A A A
Published online


Dr Redberg's editorial addressing President Obama's physical examination1 takes issue with the computed tomographic (CT) scan for coronary calcium he reportedly received, citing the potential associated cancer risk and the lack of proven benefit in low-risk persons.2 The implications of coronary artery disease screening with CT for health care cost are important, but the discussion of risks and benefits for President Obama deserves clarification. The projected cancer risk of 9 (range, 3-42) per 100 000 persons3 cited in this editorial is a point estimate, associated with considerable uncertainty, for a 40-year-old man, imparted by the median dose of a range of multidetector-row CT scan protocols. By contrast, President Obama is 48 years old and reportedly underwent electron-beam CT (EBCT).1,2 An older technology no longer manufactured or sold by the major CT vendors but still used in a number of institutions for calcium scoring, EBCT has a more standardized scan protocol that imparts a considerably lower radiation dose. Thus, the risk from such an EBCT scan would be approximately a third of that cited, without the potential for being much higher.

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Collections
PubMed Articles