FujiFilm SONOSITE X-PORTE, User Manual

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Measurement references 6-9
LVEDV = Left Ventricular End Diastolic Volume
LVDD = Left Ventricular Dimension at Diastole
Left Ventricular Mass in gm for 2D
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual . 3rd ed., Philadelphia: Lippincott, Williams, and Wilkins,
(2007), p.113-114.
LV Mass = 1.05 * {[(5/6) * A1 * (a + d + t)] - [(5/6) * A2 * (a + d)]}
where:
1.05 = Specific gravity of the myocardium
A1 = Short axis area, diastole (Epi)
A2 = Short axis area, diastole (Endo)
a = Long or semi major axis
d = Truncated semi major axis from the widest short axis diameter to mitral annulus plane.
t = Myocardial thickness
Left Ventricular Mass in gm for M Mode
Oh, J.K., J.B. Seward, A.J. Tajik. The Echo Manual . 3rd ed., Philadelphia: Lippincott, Williams, and Wilkins,
(2007), p.115.
LV Mass = 1.04 [(LVID + PWT + IVST)
3
– LVID
3
] * 0.8 + 0.6
where:
LVID = Internal Dimension
PWT = Posterior Wall Thickness
IVST = Interventricular Septal Thickness
1.04 = Specific gravity of the myocardium
0.8 = Correction factor
Left Ventricular Volume: Biplane Method in ml
Schiller, N.B., P.M. Shah, M. Crawford, et al. “Recommendations for Quantitation of the Left Ventricle by
Two-Dimensional Echocardiography.”
Journal of American Society of Echocardiography .
September-October 1989, 2: p.362.
Simpson’s method is used to model the chamber as a stack of elliptical disks.
where:
V = Volume in ml
a
i
= Diameter of major axis of elliptical disk i in mm
b
i
= Diameter of minor axis of elliptical disk i in mm
n = Number of disks (n=20)
V

4
---
 
 
a
i
b
i
L
n
---
 
 
i 1 =
n

=