Journal ArticleDOI
Stop-action cardiac computed tomography.
George S. Harell,Diana F. Guthaner,Richard S. Breiman,Charles C. Morehouse,Edward J. Seppi,William H. Marshall,Lewis Wexler +6 more
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TLDR
A technique of post data-acquisition correlation of the angular projection data using the electrocardiogram as a reference signal produced seven "stop action" images of the heart and resulted in delineating morphological detail not recognizable on the conventional CT scan.Abstract:
Computed tomographic (CT) cardiac imaging in vivo has been hampered by motion of the heart during its cardiac cycle A technique of post data-acquisition correlation of the angular projection data using the electrocardiogram as a reference signal is described This method produced seven "stop action" images of the heart and resulted in delineating morphological detail not recognizable on the conventional CT scanread more
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Computed tomography—old ideas and new technology
TL;DR: The historic origins and evolution of several recently introduced ‘new’ techniques in computed tomography—iterative reconstruction, gated cardiac CT, multiple-source, and dual-energy CT—actually date back to the early days of CT.
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Iterative convolution backprojection algorithms for image reconstruction from limited data
TL;DR: A new operator framework is presented that treats all types of limited-data image-reconstruction problems in a unified way and derives iterative convolution backprojection algorithms that make no restrictions on the location of missing line integrals.
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Coronary CT angiography: current status and continuing challenges.
TL;DR: The aim of this review is to present an overview of the role of coronary CT angiography on cardiac imaging, with focus on coronary artery disease in terms of the diagnostic and prognostic value of coronaryCT angiographic.
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High-speed three-dimensional X-ray computed tomography: The dynamic spatial reconstructor
TL;DR: The Dynamic Spatial Reconstructor (DSR) was designed by the Biodynamics Research Unit at the Mayo Clinic to provide synchronous volume imaging, that is stop-action, high-repetition rate, and simultaneous scanning of many parallel thin cross sections spanning the entire anatomic extent of the bodily organ(s)of interest.
Journal ArticleDOI
Algorithms for limited-view computed tomography: an annotated bibliography and a challenge.
TL;DR: An overview of techniques proposed to tackle the problem of limited-view computed tomography, employing diverse theories such as signal recovery, image restoration, constrained deconvolution, and constrained optimization, as well as novel schemes such as iterative object-dependent algorithms incorporating a priori knowledge and use of multispectral radiation are presented.