Advanced Cardiac Calculations
LOGIQ 500 Advanced Reference Manual
2276614–100 Rev. 0
4–81
B-Mode Analysis – Apical 4 Chamber (AP-4CH) (cont’d)
LVLs
LVAs
RVLs
RVAs
RVMLs
LVMLs
TAML
VENTRICULAR SYSTOLE
LAAs
LADMLs
LADSIs
RAAs
RADSIs
RADMLs
ATRIAL SYSTOLE
Figure 4–69. AP–4CH Measurements (Systole)
Calc Mnemonic
Calc Name
Input Measurements
Formula
LVAs
Left Ventricle Area,
Systole
one area (by ellipse, trace
or circle)
LVAs=a1[cm^2]
LVLs
Left Ventricular Length
Dimension, Systole
one distance
LVLs=d1[cm or mm]
LVMLs
Left Ventricular Medial-
Lateral Dimension, Systole
one distance
LVMLs=d1[cm or mm]
RVAs
Right Ventricle Area,
Systole
one area (by ellipse, trace
or circle)
RVAs=a1[cm^2]
RVLs
Right Ventricular Length
Dimension at Systole
one distance
RVLs=d1[cm or mm]
RVMLs
Right Ventricular Medial-
Lateral Dimension, Systole
one distance
RVMLs=d1[cm or mm]
TAML
Tricuspid Annulus Medial-
Lateral Dimension, Systole
one distance
TAML=d1[cm or mm]
LAA
Left Atrial Area, Systole
one area (by ellipse, trace
or circle)
LAA=a1[cm^2]
LADML
Left Atrial Medial-Lateral
Dimension, Systole
one distance
LADML=d1[cm or mm]
LADSI
Left Atrial Superior–Inferior
Dimension, Systole
one distance
LADSI=d1[cm or mm]
RAA
Right Atrial Area, Systole
one area (by ellipse, trace
or circle)
RAAs=a1[cm^2]
RADML
Right Atrial Medial-Lateral
Dimension, Systole
one distance
RADML=d1[cm or mm]
RADSI
Right Atrial Superior–
Inferior Dimension, Systole
one distance
RADSI=d1[cm or mm]
HR
Heart Rate (beats/minute)
one 2 beat time
interval
HR[BPM]=120 [sec]/ 2
beat time [sec]
Table 4–17. Apical 4 Chamber (AP-4CH) Systole
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