FDA approval for Siemens PET Scan - MRI combo

June 13, 2011 by Deborah Braconnier report

(Medical Xpress) -- The Siemens Biograph mMR system, offering both a PET scan and an MRI that work simultaneously, has been given approval by the FDA. The idea behind this machine and the ability to run both tests at the same time is expected to save diagnostic time as well as reduce a patient’s exposure to radiation.

A PET scan, or positron emission tomography, is a medical imaging test which creates three-dimensional images of functioning systems in the . The looks at gamma rays which are emitted by a positron-emitting radionuclide, or tracer, which is placed into the body. They have routinely been paired with CT scans.

An MRI, or magnetic resonance imaging, is a medical imaging that uses a powerful magnetic field. It is able to provide contrast between soft tissues within the body such as the brain, heart, muscles, and cancers. Unlike the CT scan, an MRI uses no radiation.

The Biograph is the first device to allow for simultaneous testing by both machines, according to the , and was given approval based on bench tests which compared the new device with older PET/CT device combinations. The MRI has the ability to provide much more detailed images than the CT and this new combination will allow for a reduction in radiation exposure by a patient.

The new system will allow for much quicker diagnostic testing. Siemens claims that the new system can scan the entire body in as little as 30 minutes. Having the same scans run sequentially could take an hour or more, provided they were both available right after the other. In many cases, patients would be required to wait in between testing for the other machine to become available. This simultaneous testing eliminates that possible wait time.

Siemens Medical Solutions, a division of , is a German engineering company that is headquartered in Pennsylvania. Earlier this year, they unveiled plans to restructure and reorganize their healthcare business in order to improve growth.

Explore further: Hybrid PET and MRI imaging on the horizon

Related Stories

Hybrid PET and MRI imaging on the horizon

June 6, 2011

Preliminary research presented at SNM's 58th Annual Meeting is breaking new ground for the development of a brand new hybrid molecular imaging system. Simultaneous positron emission tomography (PET) and magnetic resonance ...

Recommended for you

Researchers thwart cancer cells by triggering 'virus alert'

August 27, 2015

Working with human cancer cell lines and mice, researchers at the Johns Hopkins Kimmel Cancer Center and elsewhere have found a way to trigger a type of immune system "virus alert" that may one day boost cancer patients' ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.