Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Body Scanners for Lab Animals

29.08.2003


A PET (positron emission tomography) scanner sensitive enough to use on laboratory mice has been developed by biomedical engineers at UC Davis. The device is already being used for studies on prostate cancer.


This MicroPET scan of a live rat shows the skeleton.



"We think it’s the highest resolution scanner in existence. We can see things we couldn’t see before," said Simon Cherry, professor of biomedical engineering at UC Davis, who leads the research group.

PET scanners have become widely used in medical imaging, alongside X-rays, CAT scans and magnetic resonance imaging, because they can give information about metabolic activity in body tissues. The machines used for scanning people cannot see sufficiently fine detail for use on small animals such as mice and rats.


The current machine, called MicroPET II, can resolve a volume of about one cubic millimeter, or one microliter, Cherry said. That represents an approximately eight-fold improvement over an earlier device built by Cherry’s laboratory at UCLA, before moving to UC Davis in 2001.

PET works by detecting short-lived radioactive tracers that emit positrons, or anti-electrons. Those tracers can be attached to other molecules that are targeted to particular cells. For example, highly active cells, such as cancer cells, can be tagged with radioactive glucose.

Non-invasive imaging technology such as PET allows researchers to gain more information and to use fewer animals in experimental studies. For example, researchers could use an experimental drug to treat cancer in mice and see if the tumors were shrinking. Without methods such as PET, small deposits of cancer cells are hard to detect in experimental animals.

Cherry presented the work at the annual meeting of the Society for Molecular Imaging in San Francisco, Aug. 15-18. The work has also been published in the journal Physics in Medicine and Biology.


Media contact(s):
Andy Fell, UC Davis News Service, (530) 752-4533, ahfell@ucdavis.edu


Andy Fell | UC DAvis
Further information:
http://www.news.ucdavis.edu/search/news_detail.lasso?id=6630

More articles from Life Sciences:

nachricht Scientists enlist engineered protein to battle the MERS virus
22.05.2017 | University of Toronto

nachricht Insight into enzyme's 3-D structure could cut biofuel costs
19.05.2017 | DOE/Los Alamos National Laboratory

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

Im Focus: Bacteria harness the lotus effect to protect themselves

Biofilms: Researchers find the causes of water-repelling properties

Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...

Im Focus: Hydrogen Bonds Directly Detected for the First Time

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.

Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

Innovation 4.0: Shaping a humane fourth industrial revolution

17.05.2017 | Event News

Media accreditation opens for historic year at European Health Forum Gastein

16.05.2017 | Event News

 
Latest News

New approach to revolutionize the production of molecular hydrogen

22.05.2017 | Materials Sciences

Scientists enlist engineered protein to battle the MERS virus

22.05.2017 | Life Sciences

Experts explain origins of topographic relief on Earth, Mars and Titan

22.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>