Enhanced resolution imaging systems for digital radiography

摘要

The invention provides methods and apparatus for enhanced PCI and dual-use radiation imaging systems. In one implementation high resolution storage phosphor plate radiation detector (an area detector) is employed for conventional attenuation radiation imaging and/or PCI (including conventional PCI and coded aperture PCI). Slit and slot scan implementations for dual-use systems are introduced. Dedicated single and dual-use slit and slot scan system for conventional attenuation imaging and PCI are described that employ face-on or edge-on detectors. Slit and slot scan systems that employ area detectors are described. Edge-on, structured cell detector designs are described. Applications of edge-on structured cell detectors for CT, Nuclear Medicine, PET, and probe detectors are described.

主权项

1. A dual-use imaging slit or slot scan system for simultaneous PCI and conventional digital imaging of the same object, wherein the system is comprised of:
At least one radiation source, At least one set of pre-object and pre-detector slits or slots for conventional digital imaging, At least one set of pre-object and pre-detector slits or slots for PCI digital imaging, A set of pre-object and pre-detector masks associated with each set of pre-object and pre-detector slits or slots for PCI digital imaging, A radiation detector employed with each pre-detector slit or slot, Detector readout electronics configured for analyzing the readout signals using energy integration or photon counting or energy resolution techniques, and An electronic communications link to a computer for data post-processing, storage, and display.