is it still possibe to measure or estimate PA pressures via the Echo
when the pulmonic valve or arteries cannot be seen? it seems the only
thing they were going by was the tricuspid.

and again, as far as my chest xrays went, those arent really signs of
PH?
still, my doc and i are gonna wait and see the results from the CT
scan before any caths. now he (my new lung doc) is telling me that
right heart caths arent as risky as a left heart cath. od think
anything going into the jugular would be just as bad if not worse,
especially if theres a possible artery disease.

also, arent there several differet types of pulmonary hypternsion?