Might doctors see carotid artery during pfo closure in cath lab?

Yes: Although a angiogram of the carotid artery's could be done during a cath procedure for pfo, most times it not a good idea. There would be an increased risk of stroke and increased dose of contrast. A ultrasound carotid duplex would be safer.

They don't but can: Usually angiogram of the aorta and carotid arteries is not part of the cath. Procedure for pfo closure. So it is not performed. But, technically, an angiogram of the carotids, coronaries or other structures can be performed during the same procedure if there was an indication for it.