6 March 2013 A new imaging method for real-time 3D x-ray reconstruction
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Proceedings Volume 8668, Medical Imaging 2013: Physics of Medical Imaging; 86685G (2013) https://doi.org/10.1117/12.2006397
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States
Abstract
Existing Computed Tomography (CT) systems are vulnerable to internal organ movements. This drawback is compensated by extra exposures and digital processing. CT being a radiation dose intensive modality, it is imperative to limit the patient’s exposure to X-ray radiation, if only by removing the necessity to take extra exposures. A multiple pinhole camera, akin to optical lightfield imaging, to acquire simultaneously multiple X-ray projections is presented. This new method allows a single snapshot acquisition of all necessary projections for 3D reconstruction. It will also allow the real-time dynamic 3D X-ray reconstruction of moving organs, as it requires no scanning and no moving parts in its final implementation. A proof-of-concept apparatus that simulates the intended process was built and parallaxed images were obtained with minor processing. Synthetic 3D reconstruction tests are also presented.
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Murat Tahtali, Murat Tahtali, Sajib K. Saha, Sajib K. Saha, Andrew J. Lambert, Andrew J. Lambert, Mark R. Pickering, Mark R. Pickering, } "A new imaging method for real-time 3D x-ray reconstruction", Proc. SPIE 8668, Medical Imaging 2013: Physics of Medical Imaging, 86685G (6 March 2013); doi: 10.1117/12.2006397; https://doi.org/10.1117/12.2006397
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