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interventional radio
Question | Answer |
---|---|
What does PTA stand for? | percutaneous transluminal angioplasty |
- therapeutic procedure designed to dilate or reopen stenotic or occluded area in vessel | PTA |
- used to dilate strictures in venous structures, ureters, and GI tract | balloon angioplasty |
How long is the balloon inflated with contrast? | 15-45 sec |
- can be preformed virtually any vessel that can be reached percutaneously with a catheter | transluminal angioplasty |
what is the most common form of arterial stenosis treated by PTA? | atherosclerosis |
Long segments of occlusion are best treated how? | surgery |
- result of deposits of a new plaque, not arterial wall collapse | restenosis |
What kind of stents remain in the vessel permanently? | vascular stents |
- involves therapeutic introduction of various substances to occlude or drastically reduce blood flow within a vessel | transcatheter embolization |
What are the 3 main purposes of transcatheter embolization? | stop active bleeding sites control blood flow to diseased or malformed vessels stop or reducec blood flow to a particular area before surgery |
- used to temporarily reduce blood flow by constricting the vessel | vasoconstricting drugs |
- indicated for patient who has some type of ureteral or bladder blockage that causes hydronephrosis | percutaneous nephrostomy tube |
- used to trap emboli to prevent pulmonary embolism resulting from deep vein thrombosis of lower limbs | inferior vena cava filter |
- comprehensive term used to describe a minor surgical procedure involving the introduction of special catheters into the heart, great vessels, and coronary arteries | cardiac catherization |
- is preformed to identify the anatomic and physiologic condition of the heart | cardiac catheterization |
What is the most common disorder necessitating catheterization? | coronary artery disease |
- colloect fluid from tissue spaces and transport it to blood-vascular system | lymphatic system |
- main trunk of lymphatic system | thoracic duct |
- radiologic exam of the lymph vessels and nodes through the use of a contrast media | lymphography |