Final answer:
Angioplasty is a procedure that restores blood flow to ischemic myocardial tissue by inserting and inflating a balloon catheter in a clogged vessel, and often involves placing a stent to keep the artery open.
Step-by-step explanation:
The true statement regarding angioplasty is that it is used to restore blood flow to ischemic myocardial tissue. Angioplasty is a medical procedure where a balloon catheter is inserted into a clogged blood vessel and inflated to compress the plaque against the artery wall, thereby widening the artery to restore blood flow. Often, a stent, which is a small mesh tube, is inserted to keep the artery open and prevent it from collapsing after the procedure. This is crucial for patients with blocked coronary arteries since it can alleviate symptoms of heart disease or prevent a heart attack. It should be noted that an angiogram is a different procedure, used to diagnose heart disorders by taking x-ray images of blood vessels, and angioplasty is not a battery-operated device.