Breathing motion modeling requires observation of tissues at sufficiently distinct respiratory states for proper 4D characterization. This work proposes a method to improve sampling of the breathing cycle with limited imaging dose. We designed and tested a prospective free-breathing acquisition protocol with a simulation using datasets from five patients imaged with a model-based 4DCT technique. Each dataset contained 25 free-breathing fast helical CT scans with simultaneous breathing surrogate measurements. Tissue displacements were measured using deformable image registration. A correspondence model related tissue displacement to the surrogate. Model residual was computed by comparing predicted displacements to image registration results. To determine a stopping criteria for the prospective protocol, i.e. when the breathing cycle had been sufficiently sampled, subsets of N scans where 5 ⩽ N ⩽ 9 were used to fit reduced models for each patient. A previo...
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A study using a new computer-aided detection (CAD) algorithm found breast cancers... Read more on AuntMinnieEurope.com Related Reading: ...
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Ahead of print: Prävalenz und Risikofaktoren der felinen Hyperthyreose in einer Klinikpopulation ...Ziel: Die feline Hyperthyreose ist eine häufige Endokrinopathie bei älteren Katzen. In früheren Studien wurden unausgewogene Ernährung, Schi...
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Dicyclohexyl phthalate (DCHP) is one of the phthalate plasticizers. The objective of the present study was to investigate the effects of DCH...
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Health Promotion in the Community: Impact of Faith-Based Lay Health Educators in Urban NeighborhoodsAbstract Promoting wellness and providing reliable health information in the community present serious challenges. Lay health educators, al...
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Abstract To characterize the anatomical connectivity of the prelemniscal radiations (Raprl), a white matter region within the posterior sub...
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Predictors of postoperative pneumonia in patients undergoing oral cancer resections and its management p. 69 Ridhi Sood, Jerry Paul, Sunil...
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This work presents the nonlinear dynamical analysis of a multilayer piezoelectric macrofiber composite (MFC) laminated shell. The effects of...
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The upper reaches of the Heihe River have been regarded as a hotspot for phytoecology, climate change, water resources and hydrology studies...
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