Qp/Qs
Oh, J.K., J.B. Seward et A.J. Tajik. The Echo Manual. 3rd Edition, Boston: Philadelphia: Lippincott Williams and
Wilkins, (2007), p.70-72.
Qp/Qs = site VE Qp/site VE Qs = VE DTVD/VE DTVG
où :
VE DTVD = ST DTVD * TVI DTVD = π/4 * diamètre DTVD 2 * TVI DTVD
VE DTVG = ST DTVG * TVI DTVG = π/4 * diamètre DTVG 2 * TVI DTVG
Fraction de régurgitation (FR), en pourcentage
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual. Boston: Little, Brown and Company, (1999), 125.
FR = VR/VE VM
où :
VR = volume de régurgitation
VE VM = volume d'éjection mitrale
Volume de régurgitation (VR), en mL
Reynolds, Terry. The Echocardiographer's Pocket Reference. School of Cardiac Ultrasound, Arizona Heart
Institute, (2000), 396, 455.
VR = ORE * RM TVI
Pression systolique ventriculaire droite (PSVD), en mmHg
Reynolds, Terry. The Echocardiographer's Pocket Reference. School of Cardiac Ultrasound, Arizona Heart
Institute, (1993), 152.
2
PSVD = 4 * (Vmax TR)
où :
PAD = pression auriculaire droite
S/D
Reynolds, Terry. The Echocardiographer's Pocket Reference. 2nd ed., School of Cardiac Ultrasound, Arizona
Heart Institute, (2000), 217.
Vitesse S/vitesse D
où :
Vitesse S = onde S de veine pulmonaire
Vitesse D = onde D de veine pulmonaire
Références
+ PAD
6-11