Imaging system collimator for high energy and low energy isotopes

Abstract

A SPECT imaging system includes a detector unit configured to receive photons emitted by a radiopharmaceutical and convert the photons to projection data. The radiopharmaceutical emits radiation in a higher energy radiation range of interest and a lower energy radiation range of interest, and the detector unit concurrently detects the radiation in the higher and lower energy radiation ranges. The SPECT imaging system further includes a higher energy radiation collimator is positioned between the detector unit and the photons emitted by a radiopharmaceutical. The higher energy radiation collimator is configured for septa penetration for the higher energy radiation of interest without compromising a spatial resolution for the lower energy radiation of interest. The SPECT imaging system further includes a reconstructor configured to reconstruct a first image from projection data for the higher energy radiation of interest and a second image from projection data for the lower energy radiation of interest.

Dependencies are inferred from the claim text.