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Riferimenti di misurazione
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 = GS sito Qp/GS sito Qs = RVOT GS/LVOT GS
dove:
RVOT GS = RVOT AT * RVOT VTI = π/4 *
RVOT diametro
2
* RVOT VTI
LVOT GS = LVOT AT * LVOT VTI = π/4 * LVOT diametro
2
* LVOT VTI
Frazione rigurgitante (FR), in percentuale
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/GS VM
dove:
VR = volume rigurgitante
GS VM = gittata sistolica valvola mitrale (AT mitrale * VTI mitrale)
AT mitrale = area trasversale calcolata mediante il diametro dell’annulus
Volume rigurgitante (VR) in cc
Oh, J.K., J.B. Seward, A.J. Tajik.
The Echo Manual
. 3rd ed., Lippincott, Williams, and Wilkins, (2007),
p.215-217.
VR = OER * RM VTI/100
Volume atriale destro
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.
Vol AD = π/4 *
Σ(
ai) * ai * L/20 per i = da 1 a 20 (numero di segmenti)
dove:
Volume AD = volume atriale destro in ml
ai = diametro della sezione di visualizzazione della camera i
L = lunghezza della visualizzazione della camera
Summary of Contents for SonoSite SII
Page 1: ...Doppler and ECG User Guide Supplement...
Page 136: ...134 Schall Ausgangsleistung...
Page 270: ...268 Puissance acoustique...
Page 338: ...336 Uscita acustica...
Page 406: ...404 Sa da ac stica...
Page 475: ......
Page 476: ...P21465 05 P21465 05...