Beyond the Block: Why Would an Anaesthesiologist Use Ultrasound?

Increasingly, anaesthesiologists have been using ultrasound guidance to help visualise soft tissue anatomy and nerve location while performing regional nerve blocks. Correct placement of local anaesthetics lead to long lasting pain management and enhanced recovery times.
But beyond the block, how does ultrasound help anaesthesiologists do their jobs?
The answer has a lot to do with the changing practise of medicine.