0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
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 ......
ARTICLE |

Power Line-Generated Electromagnetic Fields

C. Andrew L. Bassett, MD, ScD
JAMA. 1988;260(3):343. doi:10.1001/jama.1988.03410030059027.
Text Size: A A A
Published online

To the Editor.—  I read the MEDICAL NEWS & PERSPECTIVES report on the power line controversy1 with some dismay. Comparable items, appearing quite regularly in the lay press, already have caused unnecessary apprehension among patients who often interpret the term electromagnetic generically. Unfortunately, your reporter and others rarely attempt to delineate power line magnetic phenomena from those associated with diagnostic devices, such as magnetic resonance imaging, and therapeutic devices, such as those used to treat chronically non-united fractures or osteonecrosis.Although there may be legitimate concerns about power lines, clearly they have not yet become a significant issue for magnetic resonance imaging. Furthermore, bone healing units have been in use for more than 15 years. During that time, more than 100 000 patients have been exposed safely to these selected magnetic fields, which were based, originally, on naturally occurring, strain-generated potentials in bone. In fact, no untoward reactions from

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Figures

Tables

References

CME
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.
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.

Multimedia

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

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

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

Jobs
brightcove.createExperiences();