FujiFilm SonoSite SII, User Manual Supplement

Page: 108 / 476

106 Referenzmaterial für Messungen
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 = SV-Qp-Situs/SV-Qs-Situs = RVOT SV/LVOT SV
wobei: RVOT SV = RVOT CSA * RVOT VTI = π/4 * RVOT Durchmesser
2
* RVOT VTI
LVOT SV = LVOT CSA * LVOT VTI = π/4 * LVOT-Durchmesser
2
* LVOT VTI
Rückströmungsfraktion (RF) in Prozent
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual . 3rd ed., Philadelphia: Lippincott, Williams, and Wilkins,
(2007), p.215-217.
RF = RV/MV SV
wobei: RV = Regurgitationsvolumen
MV SV = Mitralschlagvolumen (Mitral CSA * Mitral VTI)
Mitral CSA = Querschnittsfläche berechnet mithilfe des Anulus-Durchmessers
Rückströmungsvolumen (RV) in cc
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual . 3rd ed., Lippincott, Williams, and Wilkins, (2007),
p.215-217.
RV = ERO * MR VTI/100
Rechtes Vorhofvolumen
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.” J
ournal of the American Society of Echocardiograph. 2005,
18: p.1440-1463.
RA Vol = π/4 *
Σ(
ai) * ai * L/20 für i = 1 bis 20 (Anzahl der Segmente)
wobei: RV Vol = Rechtes Vorhofvolumen
ai = Durchmesser des Kammerblickschnitts i
L = Länge des Kammerblicks