Lv Calculation Formulas (Lv Bp-Disc Method) - GE LOGIQ 500 Advanced Reference Manual

Advanced Cardiac Calculations

LV Calculation Formulas (LV BP-DISC Method)

LVLs
LVAs
Figure 4–59. LV BP-DISC Method Measurements
Calc Mnemonic
LVA2d Left Ventricular Area,
Apical 2 Chamber, Diastole
LVA2s Left Ventricular Area,
Apical 2 Chamber, Systole
LVA4d Left Ventricular Area,
Apical 4 Chamber, Diastole
LVA4s Left Ventricular Area,
Apical 4 Chamber, Systole
LVL2d Left Ventricular Length,
Apical 2 Chamber, Diastole
LVL2s Left Ventricular Length,
Apical 2 Chamber, Systole
LVL4d Left Ventricular Length,
Apical 4 Chamber, Diastole
LVL4s Left Ventricular Length,
Apical 4 Chamber, Systole
HR Heart Rate
(beats/minute)
4–70
LVLs
LVAs
Calc Name Input Measurements
one area (by trace only) is
divided into 20 elliptical
disk segments
one area (by trace only) is
divided into 20 elliptical
disk segments
one area (by trace only) is
divided into 20 elliptical
disk segments
one area (by trace only) is
divided into 20 elliptical
disk segments
one distance
one distance
one distance
one distance
one 2 beat time interval
Table 4–6. LV BP-DISC Method Formulas
LVLd
LVAd
LVA2d=a1[cm ^2]
LVA2s=a1[cm ^2]
LVA4d=a1[cm ^2]
LVA4s=a1[cm ^2]
LVL2d=d1[cm or mm]
LVL2s=d1[cm or mm]
LVL4d=d1[cm or mm]
LVL4s=d1[cm or mm]
HR[BPM]=120 [sec]/ 2
beat time [sec]
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
LVLd
LVAd
Formula