By DAVID KIRK My father called me from a hospital bed a few years ago. He had been admitted to a small hospital with an abdominal infection, and his surgeon had offered him an open operation. He wanted my clinical perspective. I knew that in his condition, he was unlikely to survive general anesthesia and the open procedure. I spoke to the surgeon myself and asked why he wouldn’t ask interventional radiology (IR) to drain the infection instead. The surgeon told me that the hospital lacked the equipment required for IR, and without IR, the open operation was the best option on his me...