Читать книгу Interventional Cardiology - Группа авторов - Страница 126

Although the LIMA can often be reached with a JR guide, the more acute primary angle and longer tip of an internal mammary artery (IMA) guide is preferable. Short‐tip hook‐shaped IMA catheters can occasionally be required to intubate a very steep take off angle. Sometimes, because of subclavian stenosis or extreme tortuosity, the IMA can only be selectively cannulated via the left radial approach.