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:5/4/2016)... City, Utah (PRWEB) , ... May 04, 2016 ... ... modular surface flooring brand will provide the playing surface for the 2016 ... modular surface was installed today for the men’s volleyball championship to be held ...
(Date:5/4/2016)... (PRWEB) , ... May 04, ... ... full service insurance provider serving families of Camas and Vancouver, WA, has ... campaign fundraises for the National Breast Cancer Foundation and their Mammography Program, ...
(Date:5/4/2016)... ... May 04, 2016 , ... Level 10 Head Over Heels Athletic ... to the University of Arizona for the fall of 2019. , After a ... Brovedani’s commitment to the GymCats came from her connection with the coaching staff and ...
(Date:5/4/2016)... ... 04, 2016 , ... The RIDER Institute announces an IndieGoGo ... broad-spectrum antiviral therapeutics. DRACOs have proven effective against all 18 viruses tested in ... http://igg.me/at/EndTheVirus and runs for 60 days, we are raising new funding ...
(Date:5/4/2016)... NY (PRWEB) , ... May 04, 2016 , ... ... private owners, developers and operators of commercial real estate proudly announced that its ... Heart Health initiative. Team members portfolio-wide will continue Olshan Properties’ annual philanthropic ...
Breaking Medicine News(10 mins):
(Date:5/3/2016)... , May 3, 2016 ACME ... Jack Whelan and Delaware County Councilman ... HCI) Nasal Spray in all ACME pharmacies ... Centers for Disease Control and Prevention (CDC), naloxone has saved 26,463 ... police officers in Delaware County were authorized ...
(Date:5/3/2016)... OSWEGO, Ore. , May 3, 2016   ... the importance of extending care beyond the implant at ... Sessions, May 4-7 in San Francisco ... with continually delivering the highest quality of patient care ... patients are cared for each and every tomorrow," said ...
(Date:5/3/2016)... NEW YORK , May 3, 2016 ... Imaging (MRI) Market Size, Share, Development, Growth and Demand ... and Open), by Field Strength (High Field, Very High ... by Application (Brain, Head and Neck, Spine, Musculoskeletal, Vascular, ... Research, the global magnetic resonance imaging (MRI) market was ...
Breaking Medicine Technology: