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:12/26/2014)... 2014 Parker & Sons, Inc. ... in heating, cooling and plumbing contractor services throughout ... services in 2014 with regard to air-conditioning systems. ... is known for its incredibly hot summers. Working ... intricacies and details of a wide variety of ...
(Date:12/25/2014)... 2014 The click strand ... strength and durability. Today, the business announces a ... valid until Jan. 30, 2015. , Click strand ... hardwood. BambooFlooringChina.com is a well-known brand in the ... to find a reliable bamboo flooring supplier. , ...
(Date:12/25/2014)... 2014 Product liability lawsuits filed in ... ( http://www.consumerinjurylawyers.com/DePuy/ ) continue to move forward in federal ... issued in the U.S. District Court, Northern District of ... open conference on January 7, 2015, at the Paul ... West Palm Beach, Florida. The Conference is scheduled to ...
(Date:12/25/2014)... Recently, Dylan Queen, a famous online company supplying ... of discounted prom dresses, most of which are priced ... the company, the promotion is valid until Jan. 22, ... the UK market. , The prom dresses in this ... styles: A-line strapless, empire strapless chiffon, one shoulder, floor-length, ...
(Date:12/25/2014)... sells many bamboo products and the business is famous ... announces big discounts on its bamboo mats , which ... the world’s leader in bamboo flooring. According to the ... 2015. , The bamboo mats are made from well-treated ... the bamboo strips for the mats are boiled and ...
Breaking Medicine News(10 mins):Health News:Parker & Sons Announces Record Demand For 24 Hour Emergency Services In 2014 With Regard To Air-Conditioning Systems 2Health News:Parker & Sons Announces Record Demand For 24 Hour Emergency Services In 2014 With Regard To Air-Conditioning Systems 3Health News:BambooFlooringChina.com: click strand woven bamboo flooring promotion valid until Jan. 30, 2015. 2Health News:Federal Court Overseeing DePuy ASR Hip Lawsuit Set to Convene Conference in January, Bernstein Liebhard LLP Reports 2Health News:Federal Court Overseeing DePuy ASR Hip Lawsuit Set to Convene Conference in January, Bernstein Liebhard LLP Reports 3Health News:Dylan Queen: Cheap Prom Dresses for the UK Market 2Health News:Various Styles of Bamboo Mats in Many Colors from BambooFlooringChina.com 2
... , Effort aims to ... and professionals and pursue a co-operative and collaborative approach to ... , WASHINGTON, Aug. 4 The National ... a formal Memorandum of Understanding with two like-minded organizations--the Canadian ...
... , INDIANAPOLIS, Aug. 4 Arcadia Resources, Inc. ... innovative consumer health care services under the Arcadia HealthCare(SM) brand, ... provider Comfort Keepers((R) )to provide DailyMed(TM) for Comfort Keepers franchisees ... the program with Comfort Keepers will launch this month and ...
... , , , GLENWOOD, ... a recognized leader in personal and environmental radiation monitoring services, today reported financial ... , , Fiscal 2009 Third Quarter Highlights , ... to $23.5 million on continued global demand for InLight products and increased domestic ...
... , , CARLSBAD, Calif., Aug. ... leader in antisense therapeutics, today announced that management will present a ... on Tuesday, August 11, 2009, at 1:00 p.m. ET at the ... webcast of the presentation will be available on the "Investors & ...
... , , , ... GOHE) is pleased to advise the nutrition and investing community that ... Releases and corporate activities, are easily accessible by simply Googling Cholesterade(R). ... searching for recent updates on Go Healthy and/or its products, we ...
... , , HUNTINGTON ... sports water , is targeting the Southern California ... events throughout the late summer and fall. , ... the most demanding environments, from professional sporting events to serious amateur ...
Cached Medicine News:Health News:The National Health Care Anti-Fraud Association Signs Memorandum of Understanding With Canadian and European Anti-Fraud Organizations 2Health News:The National Health Care Anti-Fraud Association Signs Memorandum of Understanding With Canadian and European Anti-Fraud Organizations 3Health News:Arcadia HealthCare's DailyMed(TM) Signs Deal with Comfort Keepers(R), A Leading Provider of In-Home Care 2Health News:Arcadia HealthCare's DailyMed(TM) Signs Deal with Comfort Keepers(R), A Leading Provider of In-Home Care 3Health News:Arcadia HealthCare's DailyMed(TM) Signs Deal with Comfort Keepers(R), A Leading Provider of In-Home Care 4Health News:Arcadia HealthCare's DailyMed(TM) Signs Deal with Comfort Keepers(R), A Leading Provider of In-Home Care 5Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 2Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 3Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 4Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 5Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 6Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 7Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 8Health News:Landauer, Inc. Reports Fiscal 2009 Third Quarter Results 9Health News:Go Healthy's Marquis Product Cholesterade(R) at Your Fingertips on Google 2Health News:AquaHydrate, First High Performance Sports Water, Targets So Cal Sports Market With Summer Event Support 2Health News:AquaHydrate, First High Performance Sports Water, Targets So Cal Sports Market With Summer Event Support 3
(Date:12/24/2014)... , Dec. 24, 2014  Actavis plc (NYSE: ... Company has received a complete response letter from ... its New Drug Application (NDA) for the fixed-dose ... treatment of hypertension.   Photo - ... disappointed in the receipt of a complete response ...
(Date:12/24/2014)... 2014 Soligenix, Inc. (OTCQB: SNGX) (Soligenix ... products that address unmet medical needs in the ... that on December 24, 2014 it closed its ... Company raised approximately $2.3 million in gross proceeds ... net proceeds from the offering to fund its ...
(Date:12/24/2014)... N.J. and FARMINGTON, Conn. ... Technologies, Inc. (NYSE MKT: PTN), a biopharmaceutical company ... of diseases with significant unmet medical need and ... on a private placement of 2,050,000 shares of ... purchase 24,949,325 shares of its common stock.  Funds ...
Breaking Medicine Technology:Actavis Confirms Complete Response Letter for Nebivolol/Valsartan Fixed-Dose Combination for Hypertension 2Actavis Confirms Complete Response Letter for Nebivolol/Valsartan Fixed-Dose Combination for Hypertension 3Actavis Confirms Complete Response Letter for Nebivolol/Valsartan Fixed-Dose Combination for Hypertension 4Soligenix Announces Closing of Public Offering of Units 2Soligenix Announces Closing of Public Offering of Units 3Palatin Completes $20 Million Equity and $10 Million Debt Financings 2Palatin Completes $20 Million Equity and $10 Million Debt Financings 3Palatin Completes $20 Million Equity and $10 Million Debt Financings 4
... 2007 - Enzon,Pharmaceuticals, Inc. (Nasdaq: ENZN) announced today ... at the 2007,Annual Meeting of the American Association ... 14 - 18, 2007 in Los Angeles, CA., ... -- Abstract #1494: EZN-2208, a novel polyethyleneglycol-SN38,conjugate, has ...
... 13, 2007,/PRNewswire-FirstCall/ -- Sunesis Pharmaceuticals, Inc. today,announced that ... Meeting,of the American Association for Cancer Research (AACR) ... , Data being presented in a poster session ... selective and potent,inhibitor of cyclin-dependent kinases (CDKs) 2, ...
Cached Medicine Technology:Enzon to Present Preclinical Data From PEG-SN38 and PEGylation,Technology Studies at AACR Meeting 2Sunesis Pharmaceuticals to Present Data at the Annual Meeting of,the American Association for Cancer Research 2
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
Medicine Products: