MIAMI BEACH, Fla., Jan 16, 2012 (BUSINESS WIRE) -- Although using angioplasty to treat multiple sclerosis (MS) is highly controversial, sufferers often insist it helps -- in some cases dramatically, such as allowing them to walk without a cane. Patients with less severe MS also reported additional quality of life improvements, such as being able to talk more clearly, after having treatment to open blocked blood vessels in the chest and neck, according to research being presented at the 24th annual International Symposium on Endovascular Therapy (ISET).