File:Computed tomograph of pulmonary vessels.jpg|Pulmonary arterial tree levels
</gallery>
In case of severe pulmonary embolism, also measure the diameter of the pulmonary trunk at its bifurcation. A diameter of more than 27 mm for women and 29 mm for men indicates pulmonary hypertension.<ref group="notes">This measurement is, however, a poor predictor of pulmonary hypertension in patients with interstitial lung disease</ref><ref name=Radiopaedia>{{cite web |url= https://radiopaedia.org/articles/pulmonary-hypertension-1 |title= Pulmonary hypertension |website= [[Radiopaedia]] |author=Frank Gaillard |access-date= 2018-03-12}}</ref>
{{Bottom}}