نتایج جستجو برای: cone beam ct

تعداد نتایج: 274935  

2008
David A. Reimann Vipin Chaudhary

With cone beam CT long computation and a large amount of memory is required. The majority of the computation is in the backprojection step. We have investigated the use of parallel methods on workstation clusters using MPI to overcome both the long processing t ime and lessen memory requirements on individual workstations. We used the asynchronous MPI implementation t o reconstruct a 25€i3 volu...

Journal: :Japanese Journal of Oral and Maxillofacial Surgery 2016

Journal: :Dentomaxillofacial Radiology 2013

Journal: :Medical physics 2004
J H Siewerdsen D J Moseley B Bakhtiar S Richard D A Jaffray

The influence of antiscatter x-ray grids on image quality in cone-beam computed tomography (CT) is evaluated through broad experimental investigation for various anatomical sites (head and body), scatter conditions (scatter-to-primary ratio (SPR) ranging from approximately 10% to 150%), patient dose, and spatial resolution in three-dimensional reconstructions. Studies involved linear grids in c...

Journal: :Journal of Physics: Conference Series 2006

Journal: :Radiotherapy and Oncology 2019

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