Surface PISA en cm
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual. 3rd ed., Philadelphia: Lippincott, Williams, and Wilkins,
(2007), p.74-76.
2
PISA = 2 π r
où :
r = rayon d'aliasing
Qp/Qs
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual. 3rd ed., 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 * DTVD TVI = π/4 * diamètre DTVD
VE DTVG = ST DTVG * DTVG TVI = π/4 * diamètre DTVG
Fraction de régurgitation (FR) en pourcentage
Oh, J.K., J.B. Seward, A.J. Tajik.The Echo Manual. 3rd ed., Philadelphia: Lippincott, Williams, and Wilkins,
(2007), p.215-217.
FR = VR/VE VM
où :
VR = volume de régurgitation
VE VM = volume d'éjection mitrale (ST mitrale * TVI mitral)
ST mitrale = surface mitrale transverse calculée à l'aide du diamètre de l'anneau
Volume de régurgitation (VR) en cc
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual. 3rd ed., Lippincott, Williams, and Wilkins, (2007),
p.215-217.
VR = ORE * RM TVI/100
Volume auriculaire droit
Lang, R., M. Bierig, R. Devereux, et al. "Recommendations for chamber quantification: a report from the
American Society of Echocardiography's guidelines and standards committee and the chamber
quantification writing group, Developed in conjunction with the European Association of
Echocardiography, a branch of the European Society of Cardiology." Journal of the American Society of
Echocardiograph. 2005, 18: p.1440-1463.
Vol RA = π/4(h) Σ(D1)
où :
Vol OD = volume auriculaire droit en ml
h = hauteur des disques circulaires empilés constituant le RA
D1 = axe mineur orthogonal
6-12
2
2
2
* DTVD TVI
2
* DTVG TVI
Mesures de référence