Matches in SemOpenAlex for { <https://semopenalex.org/work/W183868740> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W183868740 endingPage "535" @default.
- W183868740 startingPage "521" @default.
- W183868740 abstract "Surgical intervention for chronic aortic or mitral regurgitation in asymptomatic individuals is recommended on the basis of regurgitant severity and the hemodynamic consequences on the left ventricle (LV). Echocardiography is the standard tool in clinical practice for evaluation of adults with chronic regurgitation. Regurgitant volume (RV) and fraction (RF) can be determined as the difference between stroke volumes measured at two intracardiac sites: antegrade flow across the regurgitant valve compared to antegrade flow across a normal valve. Alternatively, these severity measures can be determined by imaging the proximal flow convergence. Regurgitant orifice area also can be determined. However, limitations do exist with echocardiography due to poor image quality, variability in measuring flow diameters and foreshortened views of the ventricle. Cardiac magnetic resonance (CMR) imaging is a promising modality which can also measure regurgitant severity and may provide additional information about LV size and function. Q-flow methods allow measurement of flow velocity and instantaneous volume flow rates in the aorta or pulmonary artery; this data can be integrated over the cardiac cycle to determine RV and RF. CMR also allows accurate measurement of left and right ventricular volumes; the difference in stroke volume between the two ventricles is regurgitant volume. The role of CMR in clinical management of adults with valve regurgitation merits further study. Currently, we find CMR helpful when regurgitant severity is indeterminant on echocardiography (particularly if LV dysfunction is present), when more accurate measures of LV function are needed and when aortic dilation is present." @default.
- W183868740 created "2016-06-24" @default.
- W183868740 creator A5004047369 @default.
- W183868740 creator A5045674717 @default.
- W183868740 date "2009-08-01" @default.
- W183868740 modified "2023-09-24" @default.
- W183868740 title "Valvular regurgitation: does cardiovascular magnetic resonance provide additional information compared to echocardiography?" @default.
- W183868740 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19763073" @default.
- W183868740 hasPublicationYear "2009" @default.
- W183868740 type Work @default.
- W183868740 sameAs 183868740 @default.
- W183868740 citedByCount "2" @default.
- W183868740 countsByYear W1838687402012 @default.
- W183868740 countsByYear W1838687402015 @default.
- W183868740 crossrefType "journal-article" @default.
- W183868740 hasAuthorship W183868740A5004047369 @default.
- W183868740 hasAuthorship W183868740A5045674717 @default.
- W183868740 hasConcept C126322002 @default.
- W183868740 hasConcept C126838900 @default.
- W183868740 hasConcept C143409427 @default.
- W183868740 hasConcept C164705383 @default.
- W183868740 hasConcept C2778198053 @default.
- W183868740 hasConcept C2778793143 @default.
- W183868740 hasConcept C2778921608 @default.
- W183868740 hasConcept C2780168065 @default.
- W183868740 hasConcept C2780714102 @default.
- W183868740 hasConcept C2993373945 @default.
- W183868740 hasConcept C71924100 @default.
- W183868740 hasConcept C78085059 @default.
- W183868740 hasConcept C80461066 @default.
- W183868740 hasConceptScore W183868740C126322002 @default.
- W183868740 hasConceptScore W183868740C126838900 @default.
- W183868740 hasConceptScore W183868740C143409427 @default.
- W183868740 hasConceptScore W183868740C164705383 @default.
- W183868740 hasConceptScore W183868740C2778198053 @default.
- W183868740 hasConceptScore W183868740C2778793143 @default.
- W183868740 hasConceptScore W183868740C2778921608 @default.
- W183868740 hasConceptScore W183868740C2780168065 @default.
- W183868740 hasConceptScore W183868740C2780714102 @default.
- W183868740 hasConceptScore W183868740C2993373945 @default.
- W183868740 hasConceptScore W183868740C71924100 @default.
- W183868740 hasConceptScore W183868740C78085059 @default.
- W183868740 hasConceptScore W183868740C80461066 @default.
- W183868740 hasIssue "4" @default.
- W183868740 hasLocation W1838687401 @default.
- W183868740 hasLocation W1838687402 @default.
- W183868740 hasOpenAccess W183868740 @default.
- W183868740 hasPrimaryLocation W1838687401 @default.
- W183868740 hasRelatedWork W1998166247 @default.
- W183868740 hasRelatedWork W2023508749 @default.
- W183868740 hasRelatedWork W2023800172 @default.
- W183868740 hasRelatedWork W2039353438 @default.
- W183868740 hasRelatedWork W2052282654 @default.
- W183868740 hasRelatedWork W2059066658 @default.
- W183868740 hasRelatedWork W2078427630 @default.
- W183868740 hasRelatedWork W2136813824 @default.
- W183868740 hasRelatedWork W2167194715 @default.
- W183868740 hasRelatedWork W2413483009 @default.
- W183868740 hasRelatedWork W2760730267 @default.
- W183868740 hasRelatedWork W2791890457 @default.
- W183868740 hasRelatedWork W2989253634 @default.
- W183868740 hasRelatedWork W29926769 @default.
- W183868740 hasRelatedWork W31317014 @default.
- W183868740 hasRelatedWork W3141390285 @default.
- W183868740 hasRelatedWork W3202196810 @default.
- W183868740 hasRelatedWork W70750070 @default.
- W183868740 hasRelatedWork W2183547261 @default.
- W183868740 hasRelatedWork W3179331061 @default.
- W183868740 hasVolume "57" @default.
- W183868740 isParatext "false" @default.
- W183868740 isRetracted "false" @default.
- W183868740 magId "183868740" @default.
- W183868740 workType "article" @default.