FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3020003818> ?p ?o ?g. }

• W3020003818 endingPage "3343" @default.
• W3020003818 startingPage "3332" @default.
• W3020003818 abstract "Purpose Dual‐energy (DE) x‐ray imaging has many clinical applications in radiography, fluoroscopy, and CT. This work characterizes a prototype dual‐layer (DL) flat‐panel detector (FPD) and investigates its DE imaging capabilities for applications in two‐dimensional (2D) radiography/fluoroscopy and quantitative three‐dimensional (3D) cone‐beam CT. Unlike other DE methods like kV switching, a DL FPD obtains DE images from a single exposure, making it robust against patient and system motion. Methods The DL FPD consists of a top layer with a 200 µm‐thick CsI scintillator coupled to an amorphous silicon (aSi) FPD of 150 µm pixel size and a bottom layer with a 550 µm thick CsI scintillator coupled to an identical aSi FPD. The two layers are separated by a 1‐mm Cu filter to increase spectral separation. Images (43 × 43 cm 2 active area) can be readout in 2 × 2 binning mode (300 µm pixels) at up to 15 frames per second. Detector performance was first characterized by measuring the MTF, NPS, and DQE for the top and bottom layers. For 2D applications, a qualitative study was conducted using an anthropomorphic thorax phantom containing a porcine heart with barium‐filled coronary arteries (similar to iodine). Additionally, fluoroscopic lung tumor tracking was investigated by superimposing a moving tumor phantom on the thorax phantom. Tracking accuracies of single‐energy (SE) and DE fluoroscopy were compared against the ground truth motion of the tumor. For 3D quantitative imaging, a phantom containing water, iodine, and calcium inserts was used to evaluate overall DE material decomposition capabilities. Virtual monoenergetic (VM) images ranging from 40 to 100 keV were generated, and the optimal VM image energy which achieved the highest image uniformity and maximum contrast‐to‐noise ratio (CNR) was determined. Results The spatial resolution of the top layer was substantially higher than that of the bottom layer (top layer 50% MTF = 2.2 mm −1 , bottom layer = 1.2 mm −1 ). A substantial increase in NNPS and reduction in DQE were observed for the bottom layer mainly due to photon loss within the top layer and Cu filter. For 2D radiographic and fluoroscopic applications, the DL FPD was capable of generating high‐quality material‐specific images separating soft tissue from bone and barium. For lung tumor tracking, DE fluoroscopy yielded more accurate results than SE fluoroscopy, with an average reduction in the root mean square error (RMSE) of over 10×. For the DE‐CBCT studies, accurate basis material decompositions were obtained. The estimated material densities were 294.68 17.41 and 92.14 15.61 mg/ml for the 300 and 100 mg/ml calcium inserts, respectively, and 8.93 1.45, 4.72 1.44, and 2.11 1.32 mg/ml for the 10, 5, and 2 mg/ml iodine inserts, respectively, with an average error of less than 5%. The optimal VM image energy was found to be 60 keV. Conclusions We characterized a prototype DL FPD and demonstrated its ability to perform accurate single‐exposure DE radiography/fluoroscopy and DE‐CBCT. The merits of the DL detector approach include superior spatial and temporal registration between its constituent images, and less complicated acquisition sequences." @default.
• W3020003818 created "2020-05-01" @default.
• W3020003818 creator A5006377215 @default.
• W3020003818 creator A5024807170 @default.
• W3020003818 creator A5033806100 @default.
• W3020003818 creator A5038669318 @default.
• W3020003818 creator A5055174519 @default.
• W3020003818 creator A5063020829 @default.
• W3020003818 creator A5064419586 @default.
• W3020003818 creator A5075837371 @default.
• W3020003818 date "2020-05-18" @default.
• W3020003818 modified "2023-09-29" @default.
• W3020003818 title "Characterization and potential applications of a dual‐layer flat‐panel detector" @default.
• W3020003818 cites W1926920987 @default.
• W3020003818 cites W1977836277 @default.
• W3020003818 cites W1983509299 @default.
• W3020003818 cites W1986594560 @default.
• W3020003818 cites W1989120143 @default.
• W3020003818 cites W2040337964 @default.
• W3020003818 cites W2052486537 @default.
• W3020003818 cites W2057407843 @default.
• W3020003818 cites W2066729559 @default.
• W3020003818 cites W2079805459 @default.
• W3020003818 cites W2082620898 @default.
• W3020003818 cites W2096210342 @default.
• W3020003818 cites W2106542522 @default.
• W3020003818 cites W2113260670 @default.
• W3020003818 cites W2119820340 @default.
• W3020003818 cites W2119830757 @default.
• W3020003818 cites W2123683167 @default.
• W3020003818 cites W2127960227 @default.
• W3020003818 cites W2165534837 @default.
• W3020003818 cites W2172632772 @default.
• W3020003818 cites W2319596257 @default.
• W3020003818 cites W2483704245 @default.
• W3020003818 cites W2521861490 @default.
• W3020003818 cites W2587655474 @default.
• W3020003818 cites W2604301590 @default.
• W3020003818 cites W2766675719 @default.
• W3020003818 cites W2896017923 @default.
• W3020003818 cites W2919510940 @default.
• W3020003818 cites W4254142313 @default.
• W3020003818 doi "https://doi.org/10.1002/mp.14211" @default.
• W3020003818 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7429359" @default.
• W3020003818 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32347561" @default.
• W3020003818 hasPublicationYear "2020" @default.
• W3020003818 type Work @default.
• W3020003818 sameAs 3020003818 @default.
• W3020003818 citedByCount "25" @default.
• W3020003818 countsByYear W30200038182020 @default.
• W3020003818 countsByYear W30200038182021 @default.
• W3020003818 countsByYear W30200038182022 @default.
• W3020003818 countsByYear W30200038182023 @default.
• W3020003818 crossrefType "journal-article" @default.
• W3020003818 hasAuthorship W3020003818A5006377215 @default.
• W3020003818 hasAuthorship W3020003818A5024807170 @default.
• W3020003818 hasAuthorship W3020003818A5033806100 @default.
• W3020003818 hasAuthorship W3020003818A5038669318 @default.
• W3020003818 hasAuthorship W3020003818A5055174519 @default.
• W3020003818 hasAuthorship W3020003818A5063020829 @default.
• W3020003818 hasAuthorship W3020003818A5064419586 @default.
• W3020003818 hasAuthorship W3020003818A5075837371 @default.
• W3020003818 hasBestOaLocation W30200038182 @default.
• W3020003818 hasConcept C104293457 @default.
• W3020003818 hasConcept C120665830 @default.
• W3020003818 hasConcept C121332964 @default.
• W3020003818 hasConcept C126838900 @default.
• W3020003818 hasConcept C136229726 @default.
• W3020003818 hasConcept C15744967 @default.
• W3020003818 hasConcept C161694136 @default.
• W3020003818 hasConcept C192562407 @default.
• W3020003818 hasConcept C19417346 @default.
• W3020003818 hasConcept C2775936607 @default.
• W3020003818 hasConcept C2776805002 @default.
• W3020003818 hasConcept C2781305912 @default.
• W3020003818 hasConcept C2989005 @default.
• W3020003818 hasConcept C31601959 @default.
• W3020003818 hasConcept C36454342 @default.
• W3020003818 hasConcept C71924100 @default.
• W3020003818 hasConcept C94898600 @default.
• W3020003818 hasConcept C94915269 @default.
• W3020003818 hasConceptScore W3020003818C104293457 @default.
• W3020003818 hasConceptScore W3020003818C120665830 @default.
• W3020003818 hasConceptScore W3020003818C121332964 @default.
• W3020003818 hasConceptScore W3020003818C126838900 @default.
• W3020003818 hasConceptScore W3020003818C136229726 @default.
• W3020003818 hasConceptScore W3020003818C15744967 @default.
• W3020003818 hasConceptScore W3020003818C161694136 @default.
• W3020003818 hasConceptScore W3020003818C192562407 @default.
• W3020003818 hasConceptScore W3020003818C19417346 @default.
• W3020003818 hasConceptScore W3020003818C2775936607 @default.
• W3020003818 hasConceptScore W3020003818C2776805002 @default.
• W3020003818 hasConceptScore W3020003818C2781305912 @default.
• W3020003818 hasConceptScore W3020003818C2989005 @default.
• W3020003818 hasConceptScore W3020003818C31601959 @default.
• W3020003818 hasConceptScore W3020003818C36454342 @default.
• W3020003818 hasConceptScore W3020003818C71924100 @default.
• W3020003818 hasConceptScore W3020003818C94898600 @default.

• next