General Electric Company

Girish Bal

Floribertus Heukensfeldt Jansen

Yaron Hefetz

John Eric Tkaczyk

Brian David Yanoff

Ravindra Mohan Manjeshwar

Yanfeng Du

Sergei Ivanovich Dolinsky

Gideon Berlad

Evren Asma

Osnat Zak

Qian Hua

An apparatus and methods for evaluating the operation of pixelated detectors are provided. The method includes obtaining data values for each of a plurality of pixels of a pixelated detector and determining a data consistency metric for each of the plurality of detector pixels. The method further includes identifying, using the determined data consistency metric, any detector pixels that exceed an acceptance criterion as noisy pixels.

Apparatus and methods for evaluating operation of pixelated detectors

Apparatus and methods for determining a system matrix for pinhole collimator imaging systems are provided. One method includes using a closed form expression to determine a penetration term for a collimator of the medical imaging system and determining a point spread function of the collimator based on the penetration term. The method further includes calculating the system matrix for the medical imaging system based on the determined point spread function.

Apparatus and methods for determining a system matrix for pinhole collimator imaging systems

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Niskayuna, NY, United States of America

Girish Bal