pulomonary stenosis and right heart cath question!

ok, so my doctor wants me to get one to see if i have pulmonary hypertension, and if i still have a congenital pulmoary artery stenosis, that we fear i may not have outgrown. all i gotta do is call them back, and say i'll do it. and they will schedule it. the doctor wrote out the test request form already.

ive had a regular echo and stress echo done and nothing can view this area properly, though the one echo claims that via continuous doppler, etc.. that there is no evidence of pulmonary hypertension and my chest x-ray (regular.. NOT a CT scan), didnt show any enlarged area of my heart in that regard or anything severe enough to show up on that. would it though?

anyways, on my recent EKG's and symptoms, as you all might know, have shown right heart strain pattern.. RBBB, and borderline/possible right atrial enlargement.. and along with my symptoms.. of shortness of breath, tachycardias, etc.. they think somethings mainly up with the Pulmonary thing.

ok, my questions are:

will a right heart cath be able to rule our right atrial/ventricular failure? will it be able to measure or get an idea, a better idea if its enlarged or failing yet?

would it be able to see if i have the pulmonary stenosis still?
the doctor claims this will just measure the pulmonary pressures.. what abut the right ventricular EF, etc and pressures? will this cath be able to VIEW.. the actual pulmonary artery and see it, like a regular cath to see if theres coronary disease? my mom got to take pics home of hers from the hospital.

is it true that no matter what.. no matter how mild or severe the pulmonary artery stenosis is, that you will have some degree of pulmonary hypertension? this is what my doctor says.

he says if it shows a PH, then that means the stenosis is probably still there. yeah but what about seeing the narrowing? will it be able to view the artery?

is this the best route? really? i know they can do a transesophogeal echocardiogram, but even that supposedly can still be a bit vague.

he said i can do either right now. whats your opinion?

[bananaslug]

also, with a regular stress echo, can they see if there's any LVH or RVH, RAH?

supposedly my EKG shows some left ventiuclra hypertroophy but the one echo i had done in january said i did not. the stress echo, the doc just.. says.. it was 'normal'. cant get a straight answer.