FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2322210008> ?p ?o ?g. }

• W2322210008 abstract "Direct magnetic resonance imaging (MRI) planimetry of the maximal systolic aortic valve area does not consider temporal variations of the opening area during the ejection period. We evaluated an MRI-based methodology for the assessment of valvular dynamics in patients with severe aortic stenosis by measuring the systolic variability of the valvular blood stream, that is, the vena contracta.With institutional review board approval, we examined 22 patients (13 male, 9 female; mean age, 68 ±10 years) with severe aortic stenosis using 1.5 T MRI and a standardized scanning protocol consisting of gradient-echo phase-contrast velocity imaging and steady-state free precession-cine MRI before and after valve replacement therapy. Temporal changes of the aortic valve area, represented by systolic variations of the area of poststenotic turbulent flow at its smallest convergence, that is, the proximal vena contracta, were determined by MRI and quantified by a calculated parameter of temporal valve dynamics (T). T was defined as the period which the aortic valve spent over its maximal opening area (>85%) during systole. MRI was also used to determine left ventricular hypertrophy before (LVMI) and its regression (LVMR) after valve replacement. Findings were compared with transthoracic echocardiography and cardiac catheterization.All patients had an echocardiographic effective orifice area, EOATTE, of <1.0 cm2. The comparison of T to LVMI and LVMR revealed significant correlations (LVMI: r = -0.62; P = 0.002; LVMR: r = 0.62; P = 0.002). Further significant correlations with aortic stenosis severity were observed in the comparison with manual planimetry, invasive measurements, and echocardiographic valve areas, as well as with pressure gradients.MRI can measure systolic variations of the aortic valve area. Quantitative parameters of the hemodynamic relevance of valve dynamics obtained by this method correlate with established parameters of aortic stenosis severity and LVMR." @default.
• W2322210008 created "2016-06-24" @default.
• W2322210008 creator A5006065644 @default.
• W2322210008 creator A5011822001 @default.
• W2322210008 creator A5012015224 @default.
• W2322210008 creator A5026875446 @default.
• W2322210008 creator A5037066917 @default.
• W2322210008 creator A5050039208 @default.
• W2322210008 creator A5054270041 @default.
• W2322210008 creator A5055878070 @default.
• W2322210008 creator A5075109303 @default.
• W2322210008 creator A5077238443 @default.
• W2322210008 creator A5082228805 @default.
• W2322210008 date "2011-01-01" @default.
• W2322210008 modified "2023-09-26" @default.
• W2322210008 title "Hemodynamic Assessment of Severe Aortic Stenosis" @default.
• W2322210008 cites W189442960 @default.
• W2322210008 cites W1896623541 @default.
• W2322210008 cites W1975452026 @default.
• W2322210008 cites W1988368178 @default.
• W2322210008 cites W1989500756 @default.
• W2322210008 cites W199420291 @default.
• W2322210008 cites W2006875950 @default.
• W2322210008 cites W2012341790 @default.
• W2322210008 cites W2016051416 @default.
• W2322210008 cites W2019326434 @default.
• W2322210008 cites W2026543849 @default.
• W2322210008 cites W2035920310 @default.
• W2322210008 cites W2036108134 @default.
• W2322210008 cites W2047129278 @default.
• W2322210008 cites W2047684101 @default.
• W2322210008 cites W2052039979 @default.
• W2322210008 cites W2053154970 @default.
• W2322210008 cites W2053789627 @default.
• W2322210008 cites W2054436867 @default.
• W2322210008 cites W2055566477 @default.
• W2322210008 cites W2059639968 @default.
• W2322210008 cites W2060266734 @default.
• W2322210008 cites W2061884917 @default.
• W2322210008 cites W2069693007 @default.
• W2322210008 cites W2071662623 @default.
• W2322210008 cites W2075137754 @default.
• W2322210008 cites W2075278075 @default.
• W2322210008 cites W2081876656 @default.
• W2322210008 cites W2093244502 @default.
• W2322210008 cites W2097162202 @default.
• W2322210008 cites W2097536130 @default.
• W2322210008 cites W2108170145 @default.
• W2322210008 cites W2111312356 @default.
• W2322210008 cites W2115309842 @default.
• W2322210008 cites W2139687393 @default.
• W2322210008 cites W2154562817 @default.
• W2322210008 cites W2266929541 @default.
• W2322210008 cites W85062099 @default.
• W2322210008 doi "https://doi.org/10.1097/rli.0b013e3181f79ca2" @default.
• W2322210008 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21102347" @default.
• W2322210008 hasPublicationYear "2011" @default.
• W2322210008 type Work @default.
• W2322210008 sameAs 2322210008 @default.
• W2322210008 citedByCount "9" @default.
• W2322210008 countsByYear W23222100082012 @default.
• W2322210008 countsByYear W23222100082013 @default.
• W2322210008 countsByYear W23222100082017 @default.
• W2322210008 countsByYear W23222100082018 @default.
• W2322210008 countsByYear W23222100082019 @default.
• W2322210008 countsByYear W23222100082020 @default.
• W2322210008 countsByYear W23222100082021 @default.
• W2322210008 crossrefType "journal-article" @default.
• W2322210008 hasAuthorship W2322210008A5006065644 @default.
• W2322210008 hasAuthorship W2322210008A5011822001 @default.
• W2322210008 hasAuthorship W2322210008A5012015224 @default.
• W2322210008 hasAuthorship W2322210008A5026875446 @default.
• W2322210008 hasAuthorship W2322210008A5037066917 @default.
• W2322210008 hasAuthorship W2322210008A5050039208 @default.
• W2322210008 hasAuthorship W2322210008A5054270041 @default.
• W2322210008 hasAuthorship W2322210008A5055878070 @default.
• W2322210008 hasAuthorship W2322210008A5075109303 @default.
• W2322210008 hasAuthorship W2322210008A5077238443 @default.
• W2322210008 hasAuthorship W2322210008A5082228805 @default.
• W2322210008 hasConcept C126322002 @default.
• W2322210008 hasConcept C126838900 @default.
• W2322210008 hasConcept C143409427 @default.
• W2322210008 hasConcept C164705383 @default.
• W2322210008 hasConcept C182536299 @default.
• W2322210008 hasConcept C2776570981 @default.
• W2322210008 hasConcept C2777385415 @default.
• W2322210008 hasConcept C2780007028 @default.
• W2322210008 hasConcept C2780168065 @default.
• W2322210008 hasConcept C2780714102 @default.
• W2322210008 hasConcept C2781414266 @default.
• W2322210008 hasConcept C71924100 @default.
• W2322210008 hasConceptScore W2322210008C126322002 @default.
• W2322210008 hasConceptScore W2322210008C126838900 @default.
• W2322210008 hasConceptScore W2322210008C143409427 @default.
• W2322210008 hasConceptScore W2322210008C164705383 @default.
• W2322210008 hasConceptScore W2322210008C182536299 @default.
• W2322210008 hasConceptScore W2322210008C2776570981 @default.
• W2322210008 hasConceptScore W2322210008C2777385415 @default.
• W2322210008 hasConceptScore W2322210008C2780007028 @default.
• W2322210008 hasConceptScore W2322210008C2780168065 @default.

• next