Navigation Links
MRI/PET scanner combo
Date:3/7/2008

Two kinds of body imaging -- positron emission tomography (PET) and magnetic resonance imaging (MRI) -- have been combined for the first time in a single scanner.

MRI scans provide exquisite structural detail but little functional information, while PET scans -- which follow a radioactive tracer in the body -- can show body processes but not structures, said Simon Cherry, professor and chair of biomedical engineering at UC Davis. Cherry's lab built the scanner for studies with laboratory mice, for example in cancer research.

"We can correlate the structure of a tumor by MRI with the functional information from PET, and understand what's happening inside a tumor," Cherry said.

Combining the two types of scan in a single machine is difficult because the two systems interfere with each other. MRI scanners rely on very strong, very smooth magnetic fields that can easily be disturbed by metallic objects inside the scanner. At the same time, those magnetic fields can seriously affect the detectors and electronics needed for PET scanning. There is also a limited amount of space within the scanner in which to fit everything together, Cherry noted.

Scanners that combine computer-assisted tomography (CAT) and PET scans are already available, but CAT scans provide less structural detail than MRI scans, especially of soft tissue, Cherry said. They also give the patient a dose of radiation from X-rays.

The photomultiplier tubes used in conventional PET machines are very sensitive to magnetic fields. So the researchers used a new technology -- the silicon avalanche photodiode detector -- in their machine. They were able to show that the scanner could acquire accurate PET and MRI images at the same time from test objects and mice.


'/>"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
Source:Eurekalert

Page: 1

Related medicine news :

1. RemoteScan - Scanner Connectivity Software for EMR (Electronic Medical Record) Systems
2. Sheffield engineers have big ideas for the latest in medical scanners
3. Diagnostic Centers of America Retains NewsMark Public Relations to Showcase Its Rise as Only Medical Facility in South Florida With Worlds Most Advanced Cardiac Scanner
4. Delray Beach Mayor Commemorates Diagnostic Centers of America (DCA) $2 Million Purchase from Siemens to Become Only Medical Facility in South Florida with Worlds Most Advanced Cardiac Scanner.
5. Naviscans PEM Flex(TM) Scanner Shows Promising New Data in Breast Cancer Management
6. Community Hospital of Long Beach - Help Us Win an MRI Scanner!
7. MEDRAD Announces eCoil(TM) for Siemens, Philips 3.0T MR Scanners
8. Treatment Combo for Pancreatic Cancer Has Limited Benefit
9. Raised Breast Cancer Risk Persists After Combo HRT Stopped
10. Combo Treatment Best for Melanoma, Advanced Ovarian Cancer
11. Drug Combo Tied to Kidney Risk With Some Cardiac Surgeries
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/26/2016)... ... , ... North Cypress Medical Center hosted its 9th Annual Spring ... the help of community partners, the event organizers raised $45,000 for the Lone ... members and their families through health, wellness, and therapeutic support. , A special ...
(Date:5/26/2016)... ... May 26, 2016 , ... The MIAMI Institute for Age Management ... Dr. Adonis Maiquez MD, ABAARM. Dr. Adonis , Wellness Physician of the MIAMI ... member of the Institute for Functional Medicine. , He also heads up FITTLab, the ...
(Date:5/26/2016)... ... May 26, 2016 , ... Bunion Bootie , the ... bunionette) treatment was more than humbled by customer demand over the Mother’s Day Weekend ... mid sale. Now that Bunion Bootie has completely replenished its inventory levels, it hopes ...
(Date:5/26/2016)... ... May 26, 2016 , ... A health conscious snack ... The Dough Bar, has ignited an undeniable buzz in the protein product community ... not just any doughnut.  These doughnuts are packed with 11 grams of protein and ...
(Date:5/26/2016)... ... 2016 , ... Metcalf & Associates’ Maureen Metcalf ... in leading technology and human resources operations for health care, education, banking, and ... featured on Metcalf’s VoiceAmerica radio show , Innovative Leaders Driving Thriving Organizations. ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... and GERMANTOWN, Maryland , May 25, ... QGEN ; Frankfurt Prime Standard: QIA) today announced that the ... Therawis Diagnostics GmbH to develop and commercialize predictive assays in ... PITX2 as a marker to predict effectiveness of anthracycline treatment ... "We are pleased to partner with Therawis, which developed ...
(Date:5/25/2016)... NEW YORK , May 25, 2016 ... Device Market Size, Share, Development, Growth and Demand Forecast ... Insulin Syringe, Insulin Pump and Others)" published by P&S ... valued at $9,998.3 million in 2015, and it is ... 2016-2022. Based on type, the insulin pump segment is ...
(Date:5/25/2016)... Digital Health Dialog, LLC dba EngagedMedia ... US Patent and Trademark Office of U.S. Patent ... for electronic opt-­in and processing of discount coupons ... compliance and otherwise. Logo - http://photos.prnewswire.com/prnh/20160524/371583LOGO ... "Our technology allows for individuals to opt­-in to ...
Breaking Medicine Technology: