The directionality of a gamma probe is not only determined by the collimation, but the energy of the gamma rays. Incoming gamma rays are deflected by scattering within the tissue. This scattered radiation, known as Compton Scattering, can give a false representation of where the specimen of interest is, especially if deep within the tissue.
The C-Trak Galaxy system uniquely eliminates scattered radiation, therefore providing superior directionality. The surgeon can then dissect in the right direction to find the tissue of interest, making smaller incisions and dissecting less healthy tissue in the process.
Probes and Collimators
The OmniProbe has removable collimators making it flexible for a variety of procedures. The collimator has a 5 mm opening which is optimum for the most common procedures such as in breast sentinel node biopsies.
OmniProbe is available in either straight or angled orientation.
- OmniProbe PET used for detecting F-18 in FDG.
- OmniProbe EL for Laparoscopic use
- (available in straight, 20° or 90°).
In addition to the OmniProbe the C-Trak Galaxy System can be fitted with alternative probes for specialist applications.
The additional Lechner collimator has an even smaller field of view 3 mm making the probe even more directional but at a compromise of some sensitivity.
The Lechner collimator is especially useful for complex procedures where the nodes are close together and/or close to the injection site such as in the head and neck sentinel node biopsies.