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Combined Systems

Gemini TF PET/CT System

ready for clinical applications in oncology and cardiology

Gemini TF PET/CT System. An innovative positron emission tomography/computed tomography (PET/CT) system, the Gemini TF, is now commercially available for clinical use. The PET system uses atomic particle time measurements to deliver increased image quality and consistency, thus helping earlier disease detection in patients. The advantages of the technology have been previously demonstrated in a research environment, but these benefits are now extended to applications in the clinical environment. With the time-of-flight PET/CT system gamma rays are more accurately tracked using minute time measurements. As a result, the effective image sensitivity is raised by more than two times compared to conventional PET.Image acquisition is shortened to less than 10 minutes for a whole-body PET scan, even for larger patients, who had previously required additional scan time. The system also features the proprietary OpenView gantry design, allowing for increased patient comfort. The combined benefits of faster sampling, longer useful imaging times from short-lived isotopes and the use of new low-efficiency tracers are set to significantlyincrease the utility of PET/CT. The technology also opens the pathway to enable the molecular imagingapplications of the future.Time-of-flight PET technology offers several advantages. In a conventional PET system, a decaying radioactive agent is injected into the patient. As each nucleus decays, it releases a positron that immediately collides with an electron, releasing two gamma rays that travel away from the collision zone at 180? from each other. It is these pairs of gamma rays that are observed by the PET scanner, which uses this information to calculate where the agent is concentrated, thus creating an image of the affected area. Although the gamma rays in each pair arrive at slightly different times depending on their origin, this is not traditionally measured. With time-offlight, however, this time difference can be measured, enabling the point of origin to be more accurately predicted and leading to much more accurate imaging. Gemini TF PET/CT System




Philips Medical Systems

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