NEAR 2Pi COMPTON CAMERA FOR MEDICAL IMAGING

Abstract

To capture more emitted photons with a Compton camera, the scatter detector (12) is tilted (non-orthogonal angle) relative to a radial from the isocenter of the imaging system. The tilt creates a greater volume for scatter interaction. To capture more scatter photons, the catcher detector (13) is non-planar, such as a multi-faced detector at least partially surrounding a volume behind the scatterdetector (12). The tilted scatter detector (12) alone, the non-planar catcher detector (13) alone, or the tilted scatter detector (12) and the non-planar catcher detector (13) are used in the Comptoncamera.

Description

Background technique [0001] This embodiment relates to medical imaging using the Compton effect. The Compton effect allows higher imaging energies than that used for single photon emission computed tomography (SPECT). The Compton imaging system was constructed as a test platform, for example the scattering layer was assembled and then the trapper layer was mounted to the large frame. Electronics are connected to detect Compton-based events from the phantom's emissions. The Compton imaging system failed to address the design and constraint requirements for practical use in any commercial clinical setting. Current proposals lack the ability to integrate into imaging platforms in the clinic, or lack the design and constraint requirements (ie, flexibility and scalability) to address commercial and diagnostic needs. [0002] Compton cameras can have low sensitivity ($) and poor image quality (IQ). The absolute number of scattered photons in the scattering layer is low due to ge...

AI Technical Summary

Problems solved by technology

Limited detector energy resolution leads to additional Compton angle uncertainty

Limited detector position resolution in both the scatter and trap layers leads to additional Compton cone offset

Images