dismiss

Visit DOTmed, Booth 1513, at FIME 2015 in Miami / See our Exhibitor Preview here!

SEARCH
Current Location:
>
> This Story


Log in or Register to rate this News Story
Forward Printable StoryPrint Comment

Never Miss a Story

Sign up for email alerts

 

More Industry Headlines

Legionnaires' outbreak in New York's South Bronx continues Since July 10 there have been 46 cases, two deaths

Yes, heavy cell phone usage increases risk of brain tumors Researchers identify RFR-induced 'oxidative stress' as the culprit

CMS report on medical homes finds no evidence of cost savings Concluding they don't work, however, 'a mistake'

UK researchers determine five types of prostate cancer Some are 'tigers', others are 'pussycats' — knowing which is which could save lives

Music festival takes aim at regional heroin epidemic In New Jersey, drug addiction does not rock

Leidos, Cerner, Accenture, win highly sought Department of Defense EHR contract Military Health System contract worth at least $4.3 billion

Pantheon acquires IBSL, expands into biomedical service segment Will significantly increase footprint in Italian market

Strength in numbers: The microbiome versus 'superbugs' New insight into how bacteria fight invasion could inform probiotic development

GE invests $1 billion to improve global training over next five years Over 300 million patients globally could benefit

Certain cardiovascular factors may predict Alzheimer’s Alcohol, smoking, diabetes and obesity all increase risk

Are CT exams a great risk for young adults?

by Loren Bonner , DOTmed News Online Editor
The benefits of CT scanning outweigh the risks of radiation exposure in sick young adults, according to a study published in the journal Radiology this month.

As the public becomes more concerned about radiation-induced cancers from CT scanning, researchers from Massachusetts General Hospital wanted to try to better understand the risks and benefits of CT scanning in young adults who are sick and need CT scanning as part of their medical treatment.

Story Continues Below Advertisement

Joint Commission changes are here! Are YOU ready?

As the leading Joint Commission accreditation service provider in the U.S., WEST PHYSICS knows these new requirements in depth. Click here to find out how WEST PHYSICS can help guide you successfully through the process.



"My patients come to me with genuine concern [about radiation dose] and I wanted to look at the bigger picture to see past the scan and more to the fact that they have lymphoma or were hit by a car," Dr. Susanna Lee, chief of women's imaging at MGH, told DOTmed News.

Lee and her colleagues started out by looking at young adult patients who were scanned most frequently. These tended to be cancer patients, and the research team quickly realized that these patients were actually dying from their cancers before any of the concerns about the effects of long-term radiation could factor in.

Models predict that as humans age, cells become less sensitive to the mutagenic effects of radiation. In other words, the rate of radiation-induced cancer is higher in children and young adults. If they survive, they are more likely to live 10-20 years, which is the time it normally takes to develop a post-radiation malignancy.

For the study, Lee and her team decided to look at imaging records of every patient between 18 and 35 years old who had a chest or abdominopelvic CT scan at one of three university-affiliated hospitals in Boston between 2003-2007. Chest CT exams were most commonly ordered for cancer and trauma; and abdominal pain, trauma and cancer for abdominopelvic CT scans.

"What was surprising is that these patients are pretty sick. If you think about it the general risk of death in that age group after the five year follow-up period is like 1 percent, these people have a 4 to 7 percent risk of dying," said Lee.

These figures — 7.1 percent for chest CT and 3.9 percent for abdominopelvic CT — were much greater than the 1 percent long-term risk of death from radiation-induced cancer predicted by statistical models in both groups.

Lee also said that it was not just cancer patients who presented the greater risk because of their bleak prognosis. Patients getting scanned for trauma and abdominal pain, for example, still had a risk of death well above the risk in the general population. When they subtracted out cancer patients from the data set, the risk of death for the other groups ranged from 2.5 to 5 percent.

Given more recent efforts to reduce radiation dose with programs like Image Wisely and Image Gently, Lee said a follow-up study using more recent data would probably make the difference in mortality even more pronounced.

"We use half the dose at our institution now than we did for this study, so the risk has gone down now. For me that's reassuring because if you look at our study, most patients are only getting one to two scans. These efforts for dose reduction are an important thing for us to be doing," said Lee.

Related:


Interested in Medical Industry News? Subscribe to DOTmed's weekly news email and always be informed. Click here, it takes just 30 seconds.

You Must Be Logged In To Post A Comment

Advertise
Increase Your
Brand Awareness
Auctions + Private Sales
Get The
Best Price
Buy Equipment/Parts
Find The
Lowest Price
Daily News
Read The
Latest News
Directory
Browse All
DOTmed Users
Ethics on DOTmed
View Our
Ethics Program
Gold Parts Vendor Program
Receive PH
Requests
Gold Service Dealer Program
Receive RFP/PS
Requests
Healthcare Providers
See all
HCP Tools
Jobs/Training
Find/Fill
A Job
Parts Hunter +EasyPay
Get Parts
Quotes
Recently Certified
View Recently
Certified Users
Recently Rated
View Recently
Certified Users
Rental Central
Rent Equipment
For Less
Sell Equipment/Parts
Get The
Most Money
Service Technicians Forum
Find Help
And Advice
Simple RFP
Get Equipment
Quotes
Virtual Trade Show
Find Service
For Equipment
Access and use of this site is subject to the terms and conditions of our LEGAL NOTICE & PRIVACY NOTICE
Property of and Proprietary to DOTmed.com, Inc. Copyright ©2001-2015 DOTmed.com, Inc.
ALL RIGHTS RESERVED