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Archives of cardiovascular diseases
Volume 111, n° 8-9
pages 518-527 (août 2018)
Doi : 10.1016/j.acvd.2017.11.004
Received : 25 June 2017 ;  accepted : 22 November 2017
Clinical research

Prospective assessment of the frequency of low gradient severe aortic stenosis with preserved left ventricular ejection fraction: Critical impact of aortic flow misalignment and pressure recovery phenomenon
Évaluation prospective de la fréquence du rétrécissement aortique sévère à bas gradient et fraction d’éjection ventriculaire gauche préservée : impact critique du mauvais alignement du flux aortique et du phénomène de restitution de pression
 

Figure 1




Figure 1 : 

Patient repartition according to evaluation of aortic stenosis: two-dimensional (2D) apical approach versus multiview approach. HG: high gradient; LF: low flow; LG: low gradient; NF: normal flow.


Figure 2




Figure 2 : 

Patient repartition according to evaluation of aortic stenosis: two-dimensional (2D) apical approach versus 2D apical approach with correction for pressure recovery. HG: high gradient; LF: low flow; LG: low gradient; NF: normal flow.


Figure 3




Figure 3 : 

Patient repartition according to evaluation of aortic stenosis: two-dimensional (2D) apical approach versus combined approach (multiview approach followed by correction for pressure recovery). ELI: energy loss index; HG: high gradient; LF: low flow; LG: low gradient; NF: normal flow.


Figure 4




Figure 4 : 

Impact of the use of the multiview approach and correction for pressure recovery on the frequency of low-gradient severe aortic stenosis (AS) with preserved left ventricular ejection fraction (LVEF).

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