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ProxiScan™, a compact gamma camera for imaging of radionuclides distributed in the body developed by Hybridyne Imaging Technologies, Inc. and Brookhaven National Laboratory, can localize the uptake of radiation in tissue in detail assisting with diagnosis at an early stage and with radiopharmaceutical-guided surgery. Based on cadmium zinc telluride detectors, ProxiScan™ delivers high-resolution images for detecting small areas of interest.

The photo shows ProxiScan™- a gamma camera system for high-resolution imaging of anatomical regions. The whole system consists of the probe and computer.


ProxiScan™ is intended for the use of imaging the distribution of radionuclides in the human body using planar imaging techniques.  It may also be used for intraoperative investigations, on pathological specimens, and for endocavity applications if a protective sheath is used.

Photo provided courtesy of Brookhaven National Laboratory
ProxiScan™ is a cancer imaging device that has been cleared by the U.S. Food And Drug Administration.





Principle of Operation
The Compact Gamma Camera System for High-resolution Imaging utilizes multi-pixel cadmium zinc telluride (CdZnTe or CZT) detector arrays coupled to low-noise pulse processing electronics and high-performance image acquisition software. It combines the advantages of the high-resolution capability of cryogenically cooled semiconductors with the ambient-temperature operation of scintillators. The radiation sensor relies on a crystalline material, CZT. When struck by an incident X- or gamma-ray, a tiny current pulse is generated in the crystal that can be measured with Hybridyne's electronic readout circuit. Integrating the detectors and electronics into a small probe minimizes the working distance between the imaging system and the anatomical regions of interest, thereby allowing doctors to obtain better signals with less injected radioactive tracer. This capability entails more rapid measurements, improved images, and in some cases greater comfort for the patients. 
The photo shows the application specific integrated circuits on the top left, the pin-hole collimator on the top right and 2 multi-pixel CZTdetectors mounted onto a printed circuit board at the bottom.

Recent News 
February 2nd, 2010:
ProxiScan™  has once again been acclaimed for its innovation by receiving an invitation to the World's Best Technologies (WBT) Showcase in Arlington, Texas on March 16th, 2010:

August 11th, 2009:
ProxiScan™ was recognized as one of the top 100 inventions of the year by R&D Magazine. For more information about the award-winning product, see: 



Copyright 2011 Hybridyne Imaging Technologies, Inc. All rights reserved.