Table 56 Normal dimensions and distension of the pulmonary arteries in adults according to [99]

MPA

Systolic diameter (mm)

27.4

2.6

21–33

25.3

2.6

19–31

Diastolic diameter (mm)

22.9

2.4

19–27

21.2

2.1

17–25

Systolic area (cm²)

5.9

1.1

3.7–8.1

5.0

1.0

3.0–7.0

Diastolic area (cm²)

4.2

0.8

2.6–5.8

3.6

0.7

2.2–5.0

Distension (%)

42.7

17.2

9–77

41.8

15.7

10–74

RPA

Systolic diameter (mm)

20.2

2.9

14–26

17.8

2.4

14–22

Diastolic diameter (mm)

16.6

2.8

11–23

14.7

2.2

11–19

Systolic area (cm²)

3.3

1.0

1.3–5.3

2.6

0.7

1.2–4.0

Diastolic area (cm²)

2.2

0.8

0.6–3.8

1.8

0.6

0.6–3.0

Distension (%)

50.6

16.9

17–85

48.2

14.5

18–78

LPA

Systolic diameter (mm)

20.1

2.4

16–24

18.4

2.1

14–22

Diastolic diameter (mm)

17.3

2.5

11–23

15.9

2.0

12–20

Systolic area (cm²)

3.3

0.8

1.7–4.9

2.8

0.6

1.6–4.0

Diastolic area (cm²)

2.4

0.7

1.0–3.8

2.1

0.5

1.1–3.1

Distension (%)

35.6

10.1

16–56

35.2

10.3

15–55