Navigation Links
Mayo Clinic researchers share latest findings in CT radiation dose reduction efforts
Date:8/3/2010

ROCHESTER, Minn. - In recent years, advances in CT scanner technology have made perfusion computed tomography (CT) imaging an important diagnostic tool for patients with suspected stroke. Now, researchers at Mayo Clinic are working to reduce radiation dosages used to acquire perfusion and other CT images. Mayo Clinic medical physicist Cynthia McCollough, Ph.D., and her group of researchers presented their findings related to CT dose reduction at the 52nd Annual Meeting of the American Association of Physicists in Medicine on July 20 in Philadelphia. The presentation was entitled "20-Fold Dose Reduction Using a Gradient Adaptive Bilateral Filter: Demonstration Using in Vivo Animal Perfusion CT."

"We believe in the clinical value of perfusion CT, and though there is no documented risk of injury at the currently prescribed radiation levels, we are trying to lower the dose for the benefit of patients," says Dr. McCollough, diagnostic radiologist, Mayo Clinic.

The As Low As Reasonably Achievable, or ALARA, principle has always guided Mayo Clinic's approach to the dosages of radiation used to acquire CT images. Dr. McCollough's team has been experimenting with a newly created image-processing algorithm that produces high-quality perfusion CTs with up to 20 times less the radiation used under existing protocols. Depending on the diagnostic application, a perfusion CT exam takes about 30 seconds to scan the tissue multiple times after iodine has been injected. This technique detects changes in blood volume and flow that reveal injuries to vessels or a tumor's response to treatment. Information from each consecutive scan is then digitally cross-referenced with other images taken during the exam to improve image quality and reduce distortions.

Thus far, the new perfusion CT algorithms have proved effective in animal models, and Dr. McCollough's team has begun looking at ways to introduce the methodologies into clinical practice.

"W
'/>"/>

Contact: Rebecca Finseth
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

Page: 1 2

Related medicine news :

1. The West Clinic Joins Cancer Clinics of Excellence (CCE)
2. Stethoscope App gives iPhone New Clinical Skills
3. Mayo Clinic responsible for $22 billion in economic impact, including $9.6 billion in Minnesota
4. Sunquest Introduces Integrated Clinical Environment Physician Portal Solution in US
5. Almac Launches New STEMS System to Transform Temperature Controlled Shipment Monitoring in Clinical Trials
6. Clinical trial underway: Miniature ultrasound device could revolutionize pain relief
7. Sunquest Completes System-Wide Implementation at Cleveland Clinic Hospital Laboratories
8. Michael J. Fox Foundation Awards $1.1 Million For Clinical Trial of Transdermal Nicotine as Disease-Modifying Treatment For Parkinsons
9. NOVAVAX Presents Positive Clinical Results at The World Health Organization Conference, Geneva, Switzerland
10. UCLA Health System Presents: How to Successfully Implement a Clinical Portal
11. International Merchant Advisors CEO Mel Roseman to Discuss New Medical Marijuana Clinics Live on CBS Radio Networks Big Biz Show February 22, 2010 at 1:40 pm PST
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/27/2015)... honor of American Heart Month in February, Dr. Edwin Scott, from ... on how to improve heart health. , Heart disease may be ... to accept it as their fate. Although one may lack the ... sex or age — there are some key heart disease prevention ... to improve heart health and prevent heart disease: , 1. Don't ...
(Date:2/27/2015)... ME (PRWEB) February 27, 2015 Royal River ... ME, reports a new study that found adults who got ... develop type 2 diabetes compared to those who got the ... blood sugar levels. , The report is part of the ... ,” which Royal River Natural Foods publishes free each month ...
(Date:2/27/2015)... 27, 2015 Adding to its ... pharmaceuticals, Benedict Advertising & Marketing has added Sedation ... The company’s patented NITROUSEAL® N20 closed mask and ... of sedation. , Sedation Systems, http://www.sedationsystems.com ... a new level, though it focuses primarily on ...
(Date:2/27/2015)... 27, 2015 FACE Skincare~Medical~Wellness, a ... announced a unique combination to take fifteen years ... Décolletage is a new treatment introduced that is ... specifically indicated to improve lines and wrinkles on ... person who suffers from the stubborn vertical lines ...
(Date:2/27/2015)... Nashville, TN (PRWEB) February 27, 2015 ... Oral Health, has announced a scholarship for rising freshmen ... is Nashville’s leading periodontist office specializing in many periodontal ... , and treatment of gum disease . In ... single $1,000 college scholarship for eligible rising freshmen undergraduate ...
Breaking Medicine News(10 mins):Health News:Center for Primary Care Celebrates American Heart Month 2Health News:Center for Primary Care Celebrates American Heart Month 3Health News:Center for Primary Care Celebrates American Heart Month 4Health News:New Study Finds Magnesium May Slow Progress of Diabetes, Retailer Reports 2Health News:Benedict Advertising & Marketing Signs Sedation Systems 2Health News:Face Skincare Announces New Combination Therapy 2Health News:Nashville Periodontist Office AIOH Announces 2015 Scholarship 2
... 40 per cent of colon and breast,cancer cases in ... activity and weight maintenance, according to estimates in a,report ... to prevent,cancer. , The report, ... Cancer Research Fund (WCRF) and American Institute for Cancer ...
... WHITE PLAINS, N.Y., Feb. 26 Stress levels are ... starting to take a toll on many people. To ... their heads over it. In fact, daily stress can ... as seborrheic dermatitis, psoriasis and eczema. (Photo: http://www.newscom.com/cgi-bin/prnh/20090226/NYFNSH02 ...
... Maintain Compliance and Make Patient Safety a PriorityPORTLAND, ... recession has healthcare payers caught between member demands ... costs, while they also wrestle with business restructuring, ... expense and complexity of new technologies, treatments and ...
... Glenwood Systems, LLC ( http://www.GlenwoodSystems.com ) launches the GlaceComplete product suite ... to an assisted medical billing process. The product has ... inefficiency while maximizing revenue contribution for the average office based medical ... ...
... one-time $250 bonus coming from $787 billion national stimulus package ... ... can look forward to receiving a one-time $250 bonus payment by ... thousands of people in the Social Security Disability Insurance ...
... N.Y., Feb. 26 ABC,s hit television series Extreme ... (ET) episode on a March of Dimes volunteer family ... prematurely and whose home was later destroyed by a flood. ... in less than a week,s time during the taping of ...
Cached Medicine News:Health News:Landmark Report: Many Cancers Could be Prevented 2Health News:Recession Got You Scratching Your Head, New Scalpicin(R) Anti-Itch Wipes Can Help 2Health News:Independent Review Organizations Take Pressure Off Healthcare Payers as Recession Deepens 2Health News:Independent Review Organizations Take Pressure Off Healthcare Payers as Recession Deepens 3Health News:Glenwood Systems, LLC Improves Medical Billing Process with GlaceComplete 2Health News:Glenwood Systems, LLC Improves Medical Billing Process with GlaceComplete 3Health News:Social Security Disability Insurance Recipients To Get Extra $250 By Summer 2Health News:Social Security Disability Insurance Recipients To Get Extra $250 By Summer 3Health News:Social Security Disability Insurance Recipients To Get Extra $250 By Summer 4Health News:ABC's Extreme Makeover: Home Edition Gives Parents of Preemie a New Home 2
(Date:2/27/2015)... YORK , Feb. 27, 2015 Securities ... the board of Salix Pharmaceuticals, Ltd. (NASDAQ: ... $158.00 per share. Concerned SLXP investors are encouraged to ... The investigation focuses upon the shareholder ... agreement, Salix shareholders would receive only $158.00 per share ...
(Date:2/27/2015)... 27, 2015  Boston Scientific Corporation (NYSE: ... 2015 Annual Healthcare Conference on March 10 in ... Brennan , executive vice president and chief financial officer, ... will participate in a 25-minute question and answer session ... 1:05 p.m. ET. Following a 5-minute break, a question ...
(Date:2/27/2015)... Feb. 27, 2015 /CNW/ - Covalon Technologies Ltd. (the "Company" ... today announced financial results for its first quarter ended ... months ended December 31, 2014, revenue was $1,336,685. Operating ... $229,820 or $0.02 per share.  Covalon,s ... am very pleased with the significant progress we have ...
Breaking Medicine Technology:Boston Scientific to Participate in the Barclays 2015 Annual Healthcare Conference 2Covalon Announces First Quarter Financial Results 2Covalon Announces First Quarter Financial Results 3
... It may seem as if new developments to combat ... of light. At the forefront of the research, dermatologists ... how the skin ages in order to develop more effective ... laser light – used successfully for years to make skin ...
... Anomatic Corporation, known for their unique, high volume ... medical, pharmaceutical, personal care and cosmetic packaging industries, is ... 1.2 million dollars to build a comprehensive ... capacity. This capacity increase includes 10 new metal stamping ...
Cached Medicine Technology:Electricity Sparks Interest in New Technologies and Cosmeceuticals for Aging Skin 2Electricity Sparks Interest in New Technologies and Cosmeceuticals for Aging Skin 3Electricity Sparks Interest in New Technologies and Cosmeceuticals for Aging Skin 4Anodizing Leader Expands Capacity at U.S. Facility 2
... immobilization following shoulder fusion, dislocation, reconstruction ... allows the shoulder to be positioned ... Following brachial plexus injury this orthosis ... stretch during the healing process and ...
... and Cronin, Inc. is ... Patient Footwear, Orthopedic Softgoods, ... Products. Our products are ... and available in the ...
... and Cronin, Inc. is ... Patient Footwear, Orthopedic Softgoods, ... Products. Our products are ... and available in the ...
... of acute low back pain, they want ... restores functional mobility by providing powerful compression ... sizes that correspond directly to men's or ... reduce inventory requirements while simplifying the fitting ...
Medicine Products: