Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Unique image precision for disease treatment

01.08.2014

Siemens is improving diagnosis and treatment of diseases with a unique imaging system that locates metabolic processes using nuclear detectors and x-ray images with high accuracy.

Symbia IntevoTM*, the world's first xSPECT* system, integrates metabolic information from single photon emission computed tomography (SPECT) into computed tomography (CT) images.


Previously, SPECT/CT images had low spatial resolution and physicians needed extensive experience and additional follow-up studies to decide whether a metabolic anomaly reflected a tumor or other diseases. Symbia Intevo also enables physicians to determine tumor size and thus plan treatment and monitor outcomes.

During SPECT examinations, patients are given low doses of radiopharma­ceuticals that emit radiation when they react with a particular body tissue. Different metabolic processes can thus be observed depending on the agent administered. To determine the location of a metabolic disorder in the body, SPECT information is overlaid with CT images showing the anatomy of the body.

Until now, the problem has been that SPECT examinations offer only low spatial resolution and the high-precision CT images have to be adapted to match them. It can happen that the resulting image no longer clearly shows whether the metabolic disorder observed is inside or outside the bone. It would initially be unclear whether the anomaly was caused by a tumor in the bone or something else, such as a soft tissue inflammation.

The developers at Siemens Health­care have now integrated SPECT and CT data in such a way that the high spatial resolution of the x-ray images remains intact and the SPECT images are significantly improved. The two datasets are generated sequentially during reconstruction in the same device using reference parameters such as the position of the detectors relative to the patient.

New, iterative image reconstruction algorithms refine the data in several passes. It was not previously possible to perform such complex calculation processes at the high resolution used in the CT images. That's why, in addition to new software, Symbia Intevo is also equipped with a powerful 64-bit computer.

The precise xSPECT data also makes it possible to determine the volume of the radiopharmaceutical used. This means that physicians can observe the change in metabolic activity and check whether their treatment is working.

Symbia Intevo also utilizes state-of-the-art algorithms that use the CT measurements to assign each voxel (three-dimensional pixel) in the xSPECT image to a particular class-fatty tissue, soft tissue, air, or hard (external) and soft (internal) bone areas. This makes it easy to recognize the body part where the metabolic disorder is located.

* Symbia Intevo and xSPECT are not commercially available in all countries. Due to regulatory reasons their future availability cannot be guaranteed.

Weitere Informationen:

http://www.siemens.com/innovationnews

Dr. Norbert Aschenbrenner | Siemens InnovationNews

Further reports about: CT SPECT activity diseases disorder metabolic reconstruction spatial tomography

More articles from Medical Engineering:

nachricht Tiny mechanical wrist gives new dexterity to needlescopic surgery
24.07.2015 | Vanderbilt University

nachricht Printing implants with the laser
21.07.2015 | Laser Zentrum Hannover e.V.

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Glaciers melt faster than ever

Glacier decline in the first decade of the 21st century has reached a historical record, since the onset of direct observations. Glacier melt is a global phenomenon and will continue even without further climate change. This is shown in the latest study by the World Glacier Monitoring Service under the lead of the University of Zurich, Switzerland.

The World Glacier Monitoring Service, domiciled at the University of Zurich, has compiled worldwide data on glacier changes for more than 120 years. Together...

Im Focus: Quantum Matter Stuck in Unrest

Using ultracold atoms trapped in light crystals, scientists from the MPQ, LMU, and the Weizmann Institute observe a novel state of matter that never thermalizes.

What happens if one mixes cold and hot water? After some initial dynamics, one is left with lukewarm water—the system has thermalized to a new thermal...

Im Focus: On the crest of the wave: Electronics on a time scale shorter than a cycle of light

Physicists from Regensburg and Marburg, Germany have succeeded in taking a slow-motion movie of speeding electrons in a solid driven by a strong light wave. In the process, they have unraveled a novel quantum phenomenon, which will be reported in the forthcoming edition of Nature.

The advent of ever faster electronics featuring clock rates up to the multiple-gigahertz range has revolutionized our day-to-day life. Researchers and...

Im Focus: Superfast fluorescence sets new speed record

Plasmonic device has speed and efficiency to serve optical computers

Researchers have developed an ultrafast light-emitting device that can flip on and off 90 billion times a second and could form the basis of optical computing.

Im Focus: Unlocking the rice immune system

Joint BioEnergy Institute study identifies bacterial protein that is key to protecting rice against bacterial blight

A bacterial signal that when recognized by rice plants enables the plants to resist a devastating blight disease has been identified by a multi-national team...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

3rd Euro Bio-inspired - International Conference and Exhibition on Bio-inspired Materials

23.07.2015 | Event News

Clash of Realities – International Conference on the Art, Technology and Theory of Digital Games

10.07.2015 | Event News

World Conference on Regenerative Medicine in Leipzig: Last chance to submit abstracts until 2 July

25.06.2015 | Event News

 
Latest News

“Seeing” molecular interactions could give boost to organic electronics

03.08.2015 | Materials Sciences

Stroke: news about platelets

03.08.2015 | Life Sciences

Molecular Spies to Fight Cancer - Procedure for improving tumor diagnosis successfully tested

03.08.2015 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>