Percutaneous transluminal angioplasty is a treatment that uses a catheter to widen narrowed blood vessels.
A broader term for percutaneous angioplasty; 経皮経管的血管形成術 specifically emphasizes the transluminal approach.
Compound of 経皮 (transdermal/percutaneous), 経管的 (transluminal), and 血管形成術 (angioplasty). A modern medical term formed from Sino-Japanese elements.