Matches in SemOpenAlex for { <https://semopenalex.org/work/W2068157054> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2068157054 abstract "Problems in visualizing the complex anatomy of the cerebral vasculature during intravascular embolization therapy remain due to the two-dimensional nature of digital subtration angiography. We describe the characterization of a three- dimensional (3-D) imaging technique, Computed Rotational Angiography (CRA). Projection images were acquired by rotating a modified Siemens Multistar Angiographic prototype system (C- arm mounted XRII) around the object, resulting in approximately 130 images over 200 degrees in less than 5 s. Exposure time is less than 20 ms/frame; tube voltage ranges from 73 - 110 kVp; tube current ranges from 100 - 500 mA. In vitro resolution was tested using both small area (line patterns) and large area (beads) phantoms. Investigations using in vivo porcine models examined SNR in the presence of physiological flow conditions. Limiting high-contrast resolution was better than 6.2 lp/cm. Reconstruction of the large area phantom demonstrated uniform image quality. A comparison of model and measured SNR showed good agreement for low dose but significant difference for high dose reconstructions. SNR was 60 in multi-planar reformatted slices, and 140 in the maximum intensity projection through the same volume. In conclusion, the CRA technique we describe, -- combined with recent advances in computing hardware -- make the presentation of 3-D volumes in under 5 minutes during interventional procedures a very real possibility." @default.
- W2068157054 created "2016-06-24" @default.
- W2068157054 creator A5020184638 @default.
- W2068157054 creator A5038892854 @default.
- W2068157054 creator A5044905611 @default.
- W2068157054 creator A5087490596 @default.
- W2068157054 date "1998-07-24" @default.
- W2068157054 modified "2023-09-29" @default.
- W2068157054 title "Computed rotational angiography: system performance assessment using in-vitro and in-vivo models" @default.
- W2068157054 cites W1971609723 @default.
- W2068157054 cites W2003216596 @default.
- W2068157054 cites W2083764155 @default.
- W2068157054 cites W2086854417 @default.
- W2068157054 doi "https://doi.org/10.1117/12.317030" @default.
- W2068157054 hasPublicationYear "1998" @default.
- W2068157054 type Work @default.
- W2068157054 sameAs 2068157054 @default.
- W2068157054 citedByCount "2" @default.
- W2068157054 countsByYear W20681570542017 @default.
- W2068157054 crossrefType "proceedings-article" @default.
- W2068157054 hasAuthorship W2068157054A5020184638 @default.
- W2068157054 hasAuthorship W2068157054A5038892854 @default.
- W2068157054 hasAuthorship W2068157054A5044905611 @default.
- W2068157054 hasAuthorship W2068157054A5087490596 @default.
- W2068157054 hasConcept C104293457 @default.
- W2068157054 hasConcept C11413529 @default.
- W2068157054 hasConcept C115961682 @default.
- W2068157054 hasConcept C126838900 @default.
- W2068157054 hasConcept C136229726 @default.
- W2068157054 hasConcept C154945302 @default.
- W2068157054 hasConcept C205372480 @default.
- W2068157054 hasConcept C2780643987 @default.
- W2068157054 hasConcept C2989005 @default.
- W2068157054 hasConcept C41008148 @default.
- W2068157054 hasConcept C55020928 @default.
- W2068157054 hasConcept C55138121 @default.
- W2068157054 hasConcept C57493831 @default.
- W2068157054 hasConcept C71924100 @default.
- W2068157054 hasConceptScore W2068157054C104293457 @default.
- W2068157054 hasConceptScore W2068157054C11413529 @default.
- W2068157054 hasConceptScore W2068157054C115961682 @default.
- W2068157054 hasConceptScore W2068157054C126838900 @default.
- W2068157054 hasConceptScore W2068157054C136229726 @default.
- W2068157054 hasConceptScore W2068157054C154945302 @default.
- W2068157054 hasConceptScore W2068157054C205372480 @default.
- W2068157054 hasConceptScore W2068157054C2780643987 @default.
- W2068157054 hasConceptScore W2068157054C2989005 @default.
- W2068157054 hasConceptScore W2068157054C41008148 @default.
- W2068157054 hasConceptScore W2068157054C55020928 @default.
- W2068157054 hasConceptScore W2068157054C55138121 @default.
- W2068157054 hasConceptScore W2068157054C57493831 @default.
- W2068157054 hasConceptScore W2068157054C71924100 @default.
- W2068157054 hasLocation W20681570541 @default.
- W2068157054 hasOpenAccess W2068157054 @default.
- W2068157054 hasPrimaryLocation W20681570541 @default.
- W2068157054 hasRelatedWork W1535259942 @default.
- W2068157054 hasRelatedWork W1900615935 @default.
- W2068157054 hasRelatedWork W1966329603 @default.
- W2068157054 hasRelatedWork W1983892929 @default.
- W2068157054 hasRelatedWork W2012264099 @default.
- W2068157054 hasRelatedWork W2030781146 @default.
- W2068157054 hasRelatedWork W2043578943 @default.
- W2068157054 hasRelatedWork W2051983640 @default.
- W2068157054 hasRelatedWork W2096364402 @default.
- W2068157054 hasRelatedWork W2142677345 @default.
- W2068157054 hasRelatedWork W2146501653 @default.
- W2068157054 hasRelatedWork W2150237584 @default.
- W2068157054 hasRelatedWork W2154069047 @default.
- W2068157054 hasRelatedWork W2161978876 @default.
- W2068157054 hasRelatedWork W2335625384 @default.
- W2068157054 hasRelatedWork W2365436821 @default.
- W2068157054 hasRelatedWork W2384792996 @default.
- W2068157054 hasRelatedWork W2416135274 @default.
- W2068157054 hasRelatedWork W2483898402 @default.
- W2068157054 hasRelatedWork W2526491400 @default.
- W2068157054 isParatext "false" @default.
- W2068157054 isRetracted "false" @default.
- W2068157054 magId "2068157054" @default.
- W2068157054 workType "article" @default.