what is the medical procedure to treat fat accumulation in arteries by inserting a catheter with a balloon tip that can be blown to expand the artery?

What is the medical procedure to treat fat accumulation in arteries by inserting a catheter with a balloon tip that can be blown to expand the artery? what provides a mesh that support the weakened artery angioplasty, stent?

Angioplasty is the medical procedure to treat fat accumulation in arteries by inserting a catheter with a balloon tip that can be blown to expand the artery. Stent provides a mesh that support the weakened artery.