You really don't need cutting edge tech. I've seen dr's use their phones with an ultrasound attachment to find pleural effusions, visualize the heart, etc...
We don't at bedside all the time. They locate a pocket of fluid big enough to safely drain, mark the spot, insert a needle with catheter until fluid begins to drain, pull the needle leaving the cath and wait until it's done draining. Pull the cath and all done. The margin for error is small though. Go to far and you cause a pneumo