591 bytes added,
09:44, 29 May 2018 {{Authors
|author1=[[User:Mikael Häggström|Mikael Häggström]]
|author2=
}}
==Planning==
CT of pulmonary embolism needs to be done as a [[CT angiography]] in pulmonary arterial phase.
==Severity==
Severity of pulmonary embolism is determined by the level of the embolism along the pulmonary arterial tree, as well as how many such vessels are involved, and how much of the area is covered in each vessel.
<gallery>
File:Computed tomograph of pulmonary vessels.jpg|Pulmonary arterial tree levels
File:SegandSubsegPE.png|Segmental and subsegmental pulmonary emboli on both sides
</gallery>