Matches in SemOpenAlex for { <https://semopenalex.org/work/W2060973255> ?p ?o ?g. }
Showing items 1 to 96 of
96
with 100 items per page.
- W2060973255 endingPage "3798" @default.
- W2060973255 startingPage "3797" @default.
- W2060973255 abstract "Purpose: Recently introduced compressed sensing theory has enabled accurate, low-dose CBCT reconstruction of anatomic information with fewer and noisier projections data. However, the reconstruction time remains a significant challenge for practical implementation in a busy clinic. We propose a novel gradient projection algorithm, based on Barzilai and Borwein formulation (GP-BB), that handles the total variation (TV)-norm regularization-based least squares problem for CBCT reconstruction in an extremely efficient manner, with speed acceptable for use in on-line IGRT. Methods: CBCT is reconstructed by minimizing the energy function consisting of 1) data fidelity term, and 2) TV-norm regularization term. Both terms are simultaneously minimized by calculating the gradient projection of the energy function with the step size determined using an approximate second-order Hessian calculation at each iteration, based on Barzilai and Borwein formulation. To speed up the process, a multi-resolution optimization is used. In addition, the entire algorithm was designed to run with a single GPU card. To evaluate the performance, the CBCT projection data of a clinically-treated head-and-neck patient was acquired from the Varian TrueBeam system. Results: The proposed GP-BB algorithm was shown to be extremely efficient that a clinically reasonable patient image, using 120 CBCT projections, was reconstructed in 12 iterations for a total time of < 34 seconds. The image quality was visually equivalent to the commercial Feldkamp-Davis-Kress (FDK) algorithm using 364 CBCT projections. This represents dose reduction of one-third (= 120/364) all at while maintaining the speed needed for clinical use. Conclusions: In this work, we developed a novel low-dose CBCT reconstruction algorithm that is able to generate a clinically reasonable patient image in 12 iterations, using 120 CBCT projections, in total of < 34 seconds, with a single GPU card. This makes our GP-BB algorithm entirely practical for daily clinical use." @default.
- W2060973255 created "2016-06-24" @default.
- W2060973255 creator A5009098657 @default.
- W2060973255 creator A5014071113 @default.
- W2060973255 creator A5045863545 @default.
- W2060973255 creator A5061830017 @default.
- W2060973255 creator A5062435050 @default.
- W2060973255 creator A5065677543 @default.
- W2060973255 creator A5069111787 @default.
- W2060973255 creator A5073976392 @default.
- W2060973255 date "2011-06-01" @default.
- W2060973255 modified "2023-10-17" @default.
- W2060973255 title "WE-A-301-09: Fast, Iterative, Low-Dose, Cone-Beam Computed Tomography Reconstruction Using a Gradient Projection Algorithm" @default.
- W2060973255 doi "https://doi.org/10.1118/1.3613293" @default.
- W2060973255 hasPublicationYear "2011" @default.
- W2060973255 type Work @default.
- W2060973255 sameAs 2060973255 @default.
- W2060973255 citedByCount "0" @default.
- W2060973255 crossrefType "journal-article" @default.
- W2060973255 hasAuthorship W2060973255A5009098657 @default.
- W2060973255 hasAuthorship W2060973255A5014071113 @default.
- W2060973255 hasAuthorship W2060973255A5045863545 @default.
- W2060973255 hasAuthorship W2060973255A5061830017 @default.
- W2060973255 hasAuthorship W2060973255A5062435050 @default.
- W2060973255 hasAuthorship W2060973255A5065677543 @default.
- W2060973255 hasAuthorship W2060973255A5069111787 @default.
- W2060973255 hasAuthorship W2060973255A5073976392 @default.
- W2060973255 hasConcept C11413529 @default.
- W2060973255 hasConcept C115961682 @default.
- W2060973255 hasConcept C120665830 @default.
- W2060973255 hasConcept C121332964 @default.
- W2060973255 hasConcept C126255220 @default.
- W2060973255 hasConcept C126838900 @default.
- W2060973255 hasConcept C141379421 @default.
- W2060973255 hasConcept C154945302 @default.
- W2060973255 hasConcept C168834538 @default.
- W2060973255 hasConcept C180048950 @default.
- W2060973255 hasConcept C203616005 @default.
- W2060973255 hasConcept C2776135515 @default.
- W2060973255 hasConcept C2779813781 @default.
- W2060973255 hasConcept C2780271382 @default.
- W2060973255 hasConcept C28826006 @default.
- W2060973255 hasConcept C31601959 @default.
- W2060973255 hasConcept C31972630 @default.
- W2060973255 hasConcept C33923547 @default.
- W2060973255 hasConcept C41008148 @default.
- W2060973255 hasConcept C544519230 @default.
- W2060973255 hasConcept C55020928 @default.
- W2060973255 hasConcept C57493831 @default.
- W2060973255 hasConcept C71924100 @default.
- W2060973255 hasConcept C9267231 @default.
- W2060973255 hasConceptScore W2060973255C11413529 @default.
- W2060973255 hasConceptScore W2060973255C115961682 @default.
- W2060973255 hasConceptScore W2060973255C120665830 @default.
- W2060973255 hasConceptScore W2060973255C121332964 @default.
- W2060973255 hasConceptScore W2060973255C126255220 @default.
- W2060973255 hasConceptScore W2060973255C126838900 @default.
- W2060973255 hasConceptScore W2060973255C141379421 @default.
- W2060973255 hasConceptScore W2060973255C154945302 @default.
- W2060973255 hasConceptScore W2060973255C168834538 @default.
- W2060973255 hasConceptScore W2060973255C180048950 @default.
- W2060973255 hasConceptScore W2060973255C203616005 @default.
- W2060973255 hasConceptScore W2060973255C2776135515 @default.
- W2060973255 hasConceptScore W2060973255C2779813781 @default.
- W2060973255 hasConceptScore W2060973255C2780271382 @default.
- W2060973255 hasConceptScore W2060973255C28826006 @default.
- W2060973255 hasConceptScore W2060973255C31601959 @default.
- W2060973255 hasConceptScore W2060973255C31972630 @default.
- W2060973255 hasConceptScore W2060973255C33923547 @default.
- W2060973255 hasConceptScore W2060973255C41008148 @default.
- W2060973255 hasConceptScore W2060973255C544519230 @default.
- W2060973255 hasConceptScore W2060973255C55020928 @default.
- W2060973255 hasConceptScore W2060973255C57493831 @default.
- W2060973255 hasConceptScore W2060973255C71924100 @default.
- W2060973255 hasConceptScore W2060973255C9267231 @default.
- W2060973255 hasIssue "6Part31" @default.
- W2060973255 hasLocation W20609732551 @default.
- W2060973255 hasOpenAccess W2060973255 @default.
- W2060973255 hasPrimaryLocation W20609732551 @default.
- W2060973255 hasRelatedWork W2022769601 @default.
- W2060973255 hasRelatedWork W2023584852 @default.
- W2060973255 hasRelatedWork W2032453499 @default.
- W2060973255 hasRelatedWork W2034905155 @default.
- W2060973255 hasRelatedWork W2035203020 @default.
- W2060973255 hasRelatedWork W2056875204 @default.
- W2060973255 hasRelatedWork W2465976953 @default.
- W2060973255 hasRelatedWork W2473234055 @default.
- W2060973255 hasRelatedWork W2765792683 @default.
- W2060973255 hasRelatedWork W4293427772 @default.
- W2060973255 hasVolume "38" @default.
- W2060973255 isParatext "false" @default.
- W2060973255 isRetracted "false" @default.
- W2060973255 magId "2060973255" @default.
- W2060973255 workType "article" @default.