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 ......
Comments and Opinions |

Magnetic Resonance Imaging for Stage IV Melanoma During Pregnancy

Felicity A. Campbell, FRCP, UK, MRCGP; Colin Campbell, FRCP, UK, FRCR
Arch Dermatol. 2006;142(3):393-403. doi:10.1001/archderm.142.3.393-a.
Text Size: A A A
Published online


In their recent article, Beyeler et al1 conclude that “staging procedures must avoid ionizing radiation” and state that “magnetic resonance imaging [MRI] is harmless to the fetus.” This statement is misleading.

In the United Kingdom, the National Radiological Protection Board (NRPB), now the Radiation Protection Division of the Health Protection Agency, suggests that pregnant women should not be offered MRI in the first 3 months of pregnancy. Although the results of studies on mammals were mostly negative, the National Radiological Protection Board considered it prudent to avoid MRI of pregnant women during the first trimester, until the consequences of exposure to time-varying magnetic field gradients become more clearly established. The radiofrequency fields used during MRI can cause heating effects in the mother and fetus. These, in turn, can cause adverse effects that may be avoidable if the temperatures in the tissues do not exceed 38°C. On this basis, the NRPB concluded that until further information becomes available, pregnant women should not undergo MRI in the first 3 months of pregnancy unless the only reasonable alternative imaging method involves the use of x-ray procedures.


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.