Increasing the Performance of the Iterative Computed Tomography Image Reconstruction Algorithms
نویسندگان
چکیده
منابع مشابه
Computed Tomography Iterative Reconstruction Techniques.
For all their diagnostic value, computed tomography (CT) examinations have relatively high radiation exposure. Past efforts to decrease patient dose emphasized advances in data acquisition technology because attempts to decrease dose resulted in increased image noise from filtered back projection reconstruction techniques. Iterative reconstruction techniques lead to reduced dose and maintain im...
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Proton computed tomography (pCT) is an imaging modality that is based on tracking individual protons as they traverse the object to be imaged. Proton-by-proton tracking is necessary due to the effects of multiple Coulomb scattering (MCS), a process that deviates the proton path from a striaght line. If optimal spatial resolution is to be achieved, the path of each proton must be predicted with ...
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Proton computed tomography (pCT) is a novel imaging modality developed for patients receiving proton radiation therapy. The purpose of this work was to investigate hull-detection algorithms used for preconditioning of the large and sparse linear system of equations that needs to be solved for pCT image reconstruction. The hull-detection algorithms investigated here included silhouette/space car...
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ژورنال
عنوان ژورنال: Al-Nahrain Journal for Engineering Sciences
سال: 2020
ISSN: 2521-9162,2521-9154
DOI: 10.29194/njes.23020194