Heart right ventricle cross-sectional diameter       

                       (end diastole)

             Wladimiroff JW, Voster R, and McGhie JS.

     Normal cardiac ventricular geometry and function during

                         the last trimester of pregnancy.

                   Br J Obstet Gynaecol 1982;89:839-844

 

GA

(wks)

-2SD

Mean

+2SD

28

7.2

11.2

15.2

29

8.7

11.7

14.7

30

9.4

12.4

15.4

31

9.6

12.6

15.6

32

9.9

13.1

16.3

33

9.1

13.5

17.9

34

10.6

13.6

16.6

35

10.8

14.8

18.8

36

12.7

15.9

19.1

37

13.2

16.2

19.2

38

13.1

16.1

19.1

39

14

16.6

19.4

40

15.9

18.1

20.3