dismiss

Clean Sweep Live Auction on Thur. March 28th. Click to view the full inventory

DOTmed Home MRI Oncology Ultrasound Molecular Imaging X-Ray Cardiology Health IT Business Affairs
News Home Parts & Service Operating Room CT Women's Health Proton Therapy Endoscopy HTMs Mobile Imaging
SEARCH
Current Location:
>
> This Story


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

 

advertisement

 

CT Homepage

New approach identifies lung cancer patients most likely to respond to chemotherapy Combines radiomics and CT image assessment

BSWH to install Glassbeam's CLEAN blueprint to leverage machine uptime Will include integrated CMMS software by EQ2

Machine learning reduces false positives for lung cancer in low-dose CT False positives occur at rate of 96 percent

Siemens to unveil its SOMATOM go.Top Cardiovascular Edition CT at ACC 19 Ideal for the cardiovascular outpatient setting

Hitachi unveils new CT and ultrasound solutions at ECR Standard version of SCENARIA VIEW and three new Arietta ultrasound solutions

Universal measurement approach to CT X-ray proposed by researchers 'Only a small change to existing practice is required to unify their measurements.'

Canon showcases CT image reconstruction tech and software upgrade at ECR Removing noise while preserving signals

Philips debuts Incisive CT at ECR Includes industry-first "Tube for Life" guarantee policy

Personalized cardiac test could eliminate unnecessary catheterizations Examines flow of blood with AI and CT

NIH awards $1.8 million to Magnetic Insight for neurovascular MPI Detects magnetic nanoparticle tracers, enables deep-tissue imaging

A new study suggests that greater
dose variations may be due to use
of scanners by different medical staffs

Study calls for more consistent standards to lower dose variation

by John R. Fischer , Staff Reporter
A new study says variations in CT radiation dose exposure may have more to do with staff than patient differences or the machine used.

Compiled by an international research team, the findings suggest that greater differences in the amount of radiation dose from CT scanners are primarily due to how different medical staffs use the machines, ushering in the need for more consistent dose standards to protect patients from unnecessary radiation risks.

Story Continues Below Advertisement

RaySafe helps you avoid unnecessary radiation

RaySafe solutions are designed to minimize the need for user interaction, bringing unprecedented simplicity & usability to the X-ray room. We're committed to establishing a radiation safety culture wherever technicians & medical staff encounter radiation.



"The benchmarks and standards exist through a variety of sources as to how to set up CT examinations. The question is why aren’t those standards accessed or followed or recognized," Dr. Donald Frush, a professor of radiology and pediatrics in Duke’s department of radiology who was not a part of the study, told HCB News. "I think fundamentally practices and people who run those things are doing many things at one time from an imaging standpoint."

CT radiation doses vary on high levels across patients, institutions and countries. Research, however, shows that exposures can be reduced by 50 percent or more without mitigating image quality and diagnostic accuracy.

Evaluating dose CT data across seven countries, the team reviewed more than two million scans from 151 institutions. The exams consisted of abdomen, chest, combined chest and abdomen, and head evaluations taken between November 2015 and August 2017 from 1.7 million adults.

Researchers adjusted data for different variables related to the patient, such as sex and size, finding little change in dose variation across countries. Adjustment of patient characteristics, for instance, still saw a fourfold range in mean effective dose for abdominal scans and a proportional 17-fold range in high-dose scans. Similar variations were found with chest scans and combined abdomen scans, and little change was also found when adjusting factors such as institution type or machine manufacturer and model.

When adjusting for the technical factor of how scanners are used by medical staff, however, nearly all dose variation was substantially reduced or eliminated across nations.

An observational study, the research does not establish cause and was limited by the exclusion of several technical factors: the lack of information on other imaging modalities used on patients, the use of a single indication on a single machine model, and focus on only institutions that invest in dose monitoring software rather than ones that do not.

It does, however, suggest that optimizing doses based on a consistent standard can be achieved.

"Fundamentally, I think that in order to have a sort of concerted consistent effort across the entire landscape of CT practices, we as the healthcare community need to have a better strategy than what we have now," said Frush. "We have sort of relied on radiologists to drive this. The radiologists are doing a lot of other things. The technologists could help drive this. They’re front line and dealing with CT and patients all the time. They have the expertise and knowledge. We should have administrators, radiologists, technologists and many others involved in this process."

The findings were published in The BMJ.

CT Homepage


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 ©2001-2019 DOTmed.com, Inc.
ALL RIGHTS RESERVED