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<li>Bold italic values: Recommended and best validated.</li>
<li>Bold italic values: Recommended and best validated.</li>
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==Table 7==
{| class="wikitable" style="font-size:90%;"
|+'''Table 7 Reference limits and partition values of right ventricular and pulmonary artery size'''
|-
!
! Reference range
! Mildly abnormal
! Moderately abnormal
! Severely abnormal
|-
| colspan="5" | RV dimensions (Figure 12)
|-
| style="padding-left:12px" | Basal RV diameter (RVD 1), cm
| align="center" | 2.0–2.8
| align="center" | 2.9–3.3
| align="center" | 3.4–3.8
| align="center" | &ge;3.9
|-
| style="padding-left:12px" | Mid-RV diameter (RVD 2), cm
| align="center" | 2.7–3.3
| align="center" | 3.4–3.7
| align="center" | 3.8–4.1
| align="center" | &ge;4.2
|-
| style="padding-left:12px" | Base-to-apex length (RVD 3), cm
| align="center" | 7.1–7.9
| align="center" | 8.0–8.5
| align="center" | 8.6–9.1
| align="center" | &ge;9.2
|-
| colspan="5" | RVOT diameters (Figure 13, 14)
|-
| style="padding-left:12px" | Above aortic valve (RVOT 1), cm
| align="center" | 2.5–2.9
| align="center" | 3.0–3.2
| align="center" | 3.3–3.5
| align="center" | &ge;3.6
|-
| style="padding-left:12px" | Above pulmonic valve (RVOT 2), cm
| align="center" | 1.7–2.3
| align="center" | 2.4–2.7
| align="center" | 2.8–3.1
| align="center" | &ge;3.2
|-
| colspan="5" | PA diameter
|-
| style="padding-left:12px" | Below pulmonic valve (PA 1), cm
| align="center" | 1.5–2.1
| align="center" | 2.2–2.5
| align="center" | 2.6–2.9
| align="center" | &ge;3.0
|-
| colspan="5" | <ul><li><em>RV</em>, Right ventricular; <em>RVOT</em>, right ventricular outflow tract; <em>PA</em>, pulmonary artery.</li>
<li>Data from Foale et al.<sup>76</sup></li></ul>


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