Positron emission tomography (PET) is an established imaging technique that is finding increasing use in clinics, particularly in oncology applications. Current PET scanners, however, are large and very expensive. Their large diameter compromises their performance for imaging specific regions such as the breast, head and neck, thyroid, and limbs. In addition, the image resolution of these scanners has been limited in practice to 8-10 mm, restricting sensitive detection to large tumors.
Scientists at the University of California have developed a high-resolution, flexible, compact positron emission tomography camera. This camera is comprised of two plate detectors that can remain stationary for projection images or rotate to form tomographic images.
This compact camera is a useful clinical tool for high-quality PET imaging in specific regions of the body. It will allow physicians to use PET in a much broader scope, with imaging possible in the following areas:
This same PET system can also provide scientists with a powerful tool for small animal studies. The non-invasive nature of the imaging technique will allow scientists to follow the same animal over an extended period of time without the need for sacrifice.
This compact system overcomes the limitations of conventional PET systems, offering a cost effective alternative with better imaging than whole-body PET, SPECT, or planar gamma-camera imaging. Advantages include:
|United States Of America||Issued Patent||6,552,348||04/22/2003||1999-397|