Navigation Links
Halving the radiation dose in cardiac perfusion imaging is now 'feasible'
Date:5/17/2011

present study was designed to test whether radiation dose could be reduced without loss of resolution in the diagnostic images.

Radiation effective dose is measured in millisieverts, and, with conventional protocols, each investigation exposes the patient to a radiation dose of between 8 and 25 mSv. This study compared outcome from two protocols, a conventional full dose injection of tracer substance and a half-dose injection. Each group comprised 109 patients, who were investigated with stress-only, rest-and-stress and stress-and rest imaging. The full dose protocol was applied with dosages ranging between 12 and 32 milicurries (mCi) (depending on patient weight); in the half dose protocol dosages ranged between 5 and 17 mSCi. These were converted to radiation effective dose (in mSv).

Professor Zafrir explains that the study only became possible because of the introduction of new image processing software, which was originally designed to reduce the time it takes to acquire a full diagnostic image. " The aim of our study," she says, "was to use the same software but to assess the feasibility of reducing the tracer dose instead of reducing the acquisition time."

Results showed that 94% of the images from the half-dose protocol were assessed as "excellent to good", suggesting no loss of image quality or diagnostic accuracy when the radiation dose of the perfusion was halved.

Professor Zafrir also reports that 35% of the patients in the half-dose group had only a single stress-only investigation, and they were exposed to a mean of just 1.9 mSv. The total effective dose for stress-rest investigation was 7.19 mSv in the half dose protocol compared to 14.4 mSv in the conventional dose protocol.

"So it's our view that myocardial perfusion imaging is feasible with significant radiation dose reduction," says Professor Zafrir. "We found that image quality using the new processing software was similar to that in conventional prot
'/>"/>

Contact: Jacqueline Partarrieu
press@escardio.org
33-492-947-756
European Society of Cardiology
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Thomas Jefferson University and hospitals tasked to find new radiation drugs
2. Low-dose chest CT effective in reducing radiation for evaluation of cardiothoracic surgery patients
3. Study says eliminate pelvic imaging to reduce radiation for the detection of venous thromboembolism
4. Breast Cancer Recurrence Rates Appear Different When Radiation Used
5. Proton imaging provides more accuracy, less radiation to pediatric cancer patients
6. Managing Chemoradiation Side Effects May Prolong Survival
7. Society of Interventional Radiology addresses radiation safety, advances best practices
8. Minimizing side effects from chemoradiation could help brain cancer patients live longer
9. Japanese Radiation Called No Threat to North American Fish Fans
10. Radiation at time of lumpectomy may offer faster, more precise treatment for breast cancer patients
11. New radiation treatment practice recommendations for thyroid disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/4/2015)... 04, 2015 The U.S. healthcare worker ... join the ranks of senior citizens (1) and 27 ... already over-burdened healthcare system. Additionally, as older healthcare employees ... them. Per the U.S. Census Bureau, the number of ... 75% by 2050 while those 25 to 54 will ...
(Date:5/4/2015)... CA (PRWEB) May 04, 2015 ... is now offering a more comfortable and attractive alternative ... restoration of choice for those who have lost teeth. ... can feel insecure or slip at the worst possible ... eats or talks. They can also painfully pinch or ...
(Date:5/4/2015)... 2015 Pricing Healthcare announces it ... one patient receiving care at St. George Surgical Center ... must be performed by July 15th, 2015, and the patient ... up front and forego the filing of insurance claims). , ... every year, and it devastates more and more individuals and ...
(Date:5/4/2015)... Unlike some camps, the Nike Middle School Running ... goal is to educate first and train second, with a significant ... the young runners are building the knowledge base needed to have ... topics covered include Effort Based Training, Running Heroes, Running Vocabulary, and ... This is not a camp where kids come to run ...
(Date:5/4/2015)... Gettysburg, Pennsylvania (PRWEB) May 04, 2015 ... bicycle and hand cycle ride in the last decade ... after riding 110 miles in two days from the ... national non-profit saw 581 registered disabled and able-bodied participants ... Face of America recognizes and honors the commitment and ...
Breaking Medicine News(10 mins):Health News:U.S. Healthcare Worker Shortage Escalating: Sterling Warns Medical Practitioners to Rapidly Reverse Low Employee Retention 2Health News:U.S. Healthcare Worker Shortage Escalating: Sterling Warns Medical Practitioners to Rapidly Reverse Low Employee Retention 3Health News:U.S. Healthcare Worker Shortage Escalating: Sterling Warns Medical Practitioners to Rapidly Reverse Low Employee Retention 4Health News:Los Angeles Dental Implants Doctor, Kevin Sands DDS, Now Offers a More Comfortable and Aesthetically-Pleasing Solution to Denture-Wearers 2Health News:Pricing Healthcare to Pay a Patient's Bill for a Procedure at Utah Facility 2Health News:Pricing Healthcare to Pay a Patient's Bill for a Procedure at Utah Facility 3Health News:US Sports Camps and Select Nike Running Camps Offer Programs for Middle School Runners 2Health News:Gettysburg Welcomes Arriving Face of America Riders with Gala Celebration 2Health News:Gettysburg Welcomes Arriving Face of America Riders with Gala Celebration 3Health News:Gettysburg Welcomes Arriving Face of America Riders with Gala Celebration 4
... new class of drugs based on a widely used ... the laboratory and in mice, according to researchers. The ... treatment of these tumors. // ,Previous drugs ... same cell targets as hydroxyurea, but had serious side ...
... mantra of the media as dozens of people exposed to ... potent antibiotic. But if the supply dwindles, doctors say other ... previous generation's wonder drug: penicillin. Although alternatives exist, Cipro is ... , // ,It helped that Cipro was the ...
... An experimental anti-cancer drug has shown effectiveness in treating ... report. Researchers say the drug probably acts on many ... for treating other types of cancer. Dr. Antonio Fojo ... colleagues tested the drug, depsipeptide//, in patients with T-cell ...
... virus that kills at least 30 percent of its ... the globe more than two decades ago. Scientists retained ... and stored them in secure laboratories in Atlanta, Georgia, ... of many potential bioterrorism threats, but "perhaps it is ...
... warned doctors that doxycycline -- an antibiotic being prescribed ... -- can stunt fetal growth when taken by pregnant ... urged doctors to prescribe Cipro to pregnant women. The ... being overprescribed in the general population, possibly causing common ...
... drugs, statements about drug benefits are often overblown ... expected benefit; instead, they make an emotional appeal," ... New Hampshire. // ,Instead of telling ... medicine is going to prevent some outcome, these ...
Cached Medicine News:
(Date:5/4/2015)... 4, 2015 PharmaEngine, Inc. (TWO:4162) today ... (NASDAQ: MACK ) with its sublicensing partner, ... announced that Baxter has submitted a marketing authorization ... for MM-398 (irinotecan liposome injection), also known as ... pancreas who have been previously treated with gemcitabine-based ...
(Date:5/4/2015)...  Oncobiologics, Inc., a biotherapeutics company focused on ... completed the construction of its GMP commercial launch ... Cranbury, New Jersey . The ... to utilize multiple technologies that enable rapid deployment ... use of the latest single-use technologies, the facility ...
(Date:5/4/2015)... HeartWare International, Inc . (NASDAQ: HTWR ), a leading ... revolutionizing the treatment of advanced heart failure, today announced that ... present at the Bank of America Merrill Lynch 2015 Health ... Thursday, May 14, 2015, at 10:00 a.m. PT (1:00 p.m. ... at the conference will be available via a link on ...
Breaking Medicine Technology:PharmaEngine Announces Filing by Baxter BioScience of Marketing Authorization Application of MM-398 (PEP02) to the European Medicines Agency for Post-Gemcitabine Metastatic Pancreatic Cancer Patients 2PharmaEngine Announces Filing by Baxter BioScience of Marketing Authorization Application of MM-398 (PEP02) to the European Medicines Agency for Post-Gemcitabine Metastatic Pancreatic Cancer Patients 3Oncobiologics opens commercial launch manufacturing facility in Cranbury, New Jersey 2Oncobiologics opens commercial launch manufacturing facility in Cranbury, New Jersey 3HeartWare Presentation At Bank Of America Merrill Lynch 2015 Health Care Conference To Be Webcast 2
... a dynamic, service-oriented healthcare technology company has announced an ... and Practice Management software products. This update will enable ... the requirements set forth by the Centers for Medicare ... (Logo: http://photos.prnewswire.com/prnh/20101115/NY01712LOGO ) Currently, SequelMed ...
... capital, a burdensome and uncertain regulatory environment and lack ... the biggest threats to the biomedical industry,s growth over ... surveyed by CHI-California Healthcare Institute, BayBio and PwC US. ... quarters (74 percent) of biomedical industry CEOs surveyed said ...
Cached Medicine Technology:SequelMed Announces ANSI 5010 Upgrade for Its Users 2Survey of Biomedical Industry CEOs Finds Lack of Investment and Regulatory Environment Threaten Future Growth and Innovation 2Survey of Biomedical Industry CEOs Finds Lack of Investment and Regulatory Environment Threaten Future Growth and Innovation 3Survey of Biomedical Industry CEOs Finds Lack of Investment and Regulatory Environment Threaten Future Growth and Innovation 4Survey of Biomedical Industry CEOs Finds Lack of Investment and Regulatory Environment Threaten Future Growth and Innovation 5
Inquire...
Inquire...
One Pair of Knife Raising Blocks to move blade up 1 inch for adpatation of a freezing stage....
CO2 gas object holder and knife freezer for the 8000 Series Sliding Microtome...
Medicine Products: