Talk:Pulmonary embolism
VQ doesn't seem to offer much of a fetal radiation benefit for pregnant women http://www.acr.org/~/media/186992e39e754270bb3abbf44a5a5801.pdf#page6
And there are just perfusion scans as options http://www.resus.com.au/blog/vq-or-ctpa-in-suspected-pe-in-pregnancy/
This is an important (and separate) topic. Lets move it to it's own page: PE in Pregnancy