Table 6.

Echocardiographic Assessment of Right Ventricular Size

RV Size Parameter	Mean ± SD	Upper Limit of Normal
RV apical focused view
RV basal diameter, mm	32.8 ± 5.3	44.2
RV basal diameter index, mm/m2	18.6 ± 2.7	24.5
RV mid diameter, mm	26.4 ± 5.7	38.6
RV mid diameter index, mm/m2	15.0 ± 2.9	20.9
RV length (4Ch view), mm	73.7 ± 8.7	91.8
RV length index, mm/m2	41.9 ± 5.1	52.5
Parasternal view
RVOT PLAX diameter, mm	27.9 ± 4.2	36.4
RVOT PLAX diameter index, mm/m2	15.8 ± 2.3	20.8
RVOT PSAX proximal diameter, mm	28.3 ± 4.9	38.1
RVOT PSAX proximal diameter index, mm/m2	16.1 ± 2.8	22.1
Tricuspid annulus, mm	28.6 ± 5.1	39.4
Tricuspid annulus index, mm/m2	16.4 ± 2.6	22.0
Subcostal RV wall thickness, mm	3 ± 1	1–5
RV volume
RV EDV, mL	137 ± 44	179
RV EDVi, mL/m2	76 ± 20	95
RV ESV, mL	61 ± 22	84
RV ESV, mL	76 ± 24	43
RV ESVi, mL/m2	34 ± 11	37

Adapted with permission from Lang et al,⁵³ Addetia et al,¹⁴ and Addetia et al.¹⁵

4Ch = 4-chamber view; EDV = end-diastolic volume; EDVi = end-diastolic volume indexed to body surface area; ESV = end-systolic volume; ESVi = end-systolic volume indexed to body surface area; RV = right ventricle; RVOT = right ventricular outflow tract; PLAX = parasternal long-axis; PSAX = parasternal short-axis view.