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 |

Effect of Laser on Carcinoma in Man

Hubert L. Rosomoff, MD; Richard Hellstrom, MD; Jerry Brown, MD; Fred Carroll
JAMA. 1965;192(2):167-168. doi:10.1001/jama.1965.03080150097031.
Text Size: A A A
Published online

THIS report, preliminary in nature, concerns itself with the effect of laser on the exposed surface of in vivo carcinoma in man. LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. It represents a technological advance in instrumentation by which atoms are stimulated to emit light in same phase and direction at a given frequency. This yields a unidirectional, coherent, intense, monochromatic beam of high energy content. When a solid-state system is used, a pulsed, high-peak power output is achieved which can be focused through a lens to an impact site, to produce a maximum in power density. Thus, the ruby laser used in this study was emitting light at a wave length of 6,943 Angstroms with the delivery of 1 to 3 joules of energy in a pulse duration of 0.0005 seconds. By calculation, this is a rated power output of 2,000 to 6,000 w.

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

First Page Preview

View Large
First page PDF preview

First Page Preview

View Large
First page PDF preview

Figures

Tables

References

CME
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.
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.

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();