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
Current Location:
> This Story

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


CT Homepage

Three methods for combating 3-D printer cyberattacks CT scanners and Raman spectroscopy used to examine 3-D printed objects for cyberattacks

Musculoskeletal CT exams jump 754 percent over 20 years New study could guide capital expenditures for imaging technology

Shared Imaging provides mobile imaging systems to Kelsey-Seybold Clinic for monthly fee "Functional service" business model

Study suggests classifying Traumatic Brain Injury with new CT scoring systems 'Stockholm' and 'Helsinki' CT scores best for predicting patient outcomes

How is XR-29 impacting hospitals and their CT service agreements? Many facilities face choices and there's no single right answer

Yale researchers develop SPECT/CT tracer to risk-stratify patients with abdominal aortic aneurysm Preclinical studies show promise

Cinematic rendering generates photorealistic images using CT and MR data May improve physician-patient communication

Samsung's upgraded BodyTom Elite CT scores FDA clearance Previous generation introduced six years ago

Kaiser ERs reduce unnecessary CT scans with 'well-validated decision rules' Progress implementing the Canadian CT Head Rule

CT screening may help smokers quit Creating a 'teachable moment for smoking cessation'

Low dose radiation 'likely helps
prevent' cancer: experts

Experts assert no evidence links X-ray or CT to future cancer diagnoses

By Lauren Dubinsky and Gus Iversen

By-and-large, the health care industry is on a mission to reduce radiation exposure to the bare minimum and avoid it entirely whenever possible — but some experts have taken the position that this attitude is misguided and potentially hazardous to patients.

An article published this month in The Journal of Nuclear Medicine makes the case that the nature of radiation exposure is fundamentally misunderstood.

Story Continues Below Advertisement

The (#1 Resource) for Medical Imaging and Peripherals. Call 1-949-273-8000

As a Master Distributor for major brands Barco, Philips, and Sony, we offer custom imaging solutions. With our renowned OEM Solutions and Service/Repair Center, Ampronix is a one-stop shop for HD Medical LCD Displays--Printers--Recorders--4K Cameras

The confusion goes back at least as far as Hermann Muller's 1946 Nobel Lecture, in which he claimed, “all radiation is harmful, regardless of how low the dose and dose rate.” This way of thinking is known as the linear no-threshold hypothesis (LNTH) and this isn't the first time it's come under fire.

Study author, Jeffry A. Siegel — who is the president and CEO of Nuclear Physics Enterprises, an international nuclear physics consulting firm specializing in clinical trial design for radionuclide therapy agents, regulatory issues, quantitative diagnostic imaging acquisition and analysis, and radiation dosimetry — makes the case that Muller's argument is scientifically invalid.

Although it has repeatedly been shown that the dose-response relationship may reasonably be considered to be linear down to a certain threshold, (i.e. "half as much is half as bad") Siegel and the other authors argue, at a certain point this relationship changes.

"Credible evidence of imaging-related low-dose (<100 mGy) carcinogenic risk is nonexistent; it is a hypothetical risk derived from the demonstrably false LNTH," they wrote. "On the contrary, low-dose radiation does not cause, but more likely helps prevent, cancer."

Some evidence toward the possible benefits of very low radiation dose exposure was published in 2015 in PLOS ONE, where researchers showed that exposing fruit flies to radiation could actually make them live longer.

As Low As Reasonability Achievable, or ALARA, refers to the widely accepted principle that using the minimum necessary radiation dose for CT, X-ray and nuclear medicine imaging exams is the best medicine — and despite a lack of evidence regarding the dangers of low dose — many regulatory policies are based on it.

Siegel's team points to studies that demonstrate the LNTH and ALARA philosophies focus solely on molecular damage and disregard the protective, biological responses that can take place on a very low level.
  Pages: 1 - 2 >>

CT Homepage

You Must Be Logged In To Post A Comment

Increase Your
Brand Awareness
Auctions + Private Sales
Get The
Best Price
Buy Equipment/Parts
Find The
Lowest Price
Daily News
Read The
Latest News
Browse All
DOTmed Users
Ethics on DOTmed
View Our
Ethics Program
Gold Parts Vendor Program
Receive PH
Gold Service Dealer Program
Receive RFP/PS
Healthcare Providers
See all
HCP Tools
A Job
Parts Hunter +EasyPay
Get Parts
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
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, Inc. Copyright ©2001-2017, Inc.