Term
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Definition
| the portion of the descending aorta that is located at the level of the diaphragm and extends to the bifurcation (common iliac arteries). |
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Term
| Abdominal Aortic Aneurysm (AAA) |
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Definition
| A dilation of the aorta. Most often infrarenal (below the kidneys). |
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Term
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Definition
| Loss of acoustic properties of targets lying behind an attenuating structure. |
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Term
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Definition
| Short, severe symptoms of sudden onset or short duration. |
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Term
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Definition
| Outermost layer of an artery |
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Term
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Definition
| The natural or surgically-created communication between blood vessels or prosthetic graft and blood vessel as in a bypass graft. It can be proximal or distal. |
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Term
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Definition
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Term
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Definition
| Rupture of the intima allows blood between layers of the vessel wall, expanding the vessel while separating the layers. |
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Term
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Definition
| An encapsulated hematoma occurring at the site of an anastomosis, or a ruptured artery, or following an iatrogenic procedure. The pulsing mass resembles an aneurysm. |
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Term
| Anterior tibial artery (ATA) |
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Definition
| A terminal branch of the popliteal artery located along the lateral surface of the tibia and continues onto the dorsum of the foot at the dorsalis pedis artery. |
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Term
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Definition
| Complete blockage of an artery. |
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Term
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Definition
| A local defect or excavation which is produced by sloughing of inflammatory necrotic tissue. |
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Term
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Definition
| Communication between an artery and vein. It may be congenital, traumatic or surgically created for dialysis access. |
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Term
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Definition
| Disease of the arterial intima, intimal proliferation, deposition of fatty substances and luminal reduction. |
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Term
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Definition
Passage of a small catheter into the artery or vein to obtain blood samples, used with interventional and diagnostic procedures on the arteries in
the heart or the body. |
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Term
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Definition
| A tube passed through the body for evacuating fluid or injecting them into the body cavities. Typically made of elastic, elastic web, rubber, glass, metal, or plastic. |
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Term
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Definition
| Severe neuralgic pain; also called reflex sympathetic dystrophy. |
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Term
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Definition
| Of long duration, or occurring with repeated frequency; opposite of acute. Occurring over a long period of time, old versus new. |
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Term
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Definition
| To become clotted or congealed. |
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Term
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Definition
| To change from a fluid to a semi solid mass. |
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Term
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Definition
| To meet or join. When performing a venous duplex exam, with light probe pressure, the walls of normal veins collapse and come together (compression). |
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Term
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Definition
| A stricture or narrowing of a vessel, usually of a congenital nature. |
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Term
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Definition
In abnormal veins the respiratory phasicity is lost, resulting in a steady flow signal. When
coupled with very low velocity, continuous flow indicates proximal (except in the Portal system) obstruction that is preventing the normal fluctuations in flow that occurs during respiration. |
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Term
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Definition
| A wave in which cycles repeat indefinitely. |
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Term
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Definition
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Term
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Definition
| The use of a foreign substance to provide a difference in density (contrast) so that the tissue or organ can be better visualized. |
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Term
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Definition
| An alternate, natural circulation pathway. When there is interference in the arterial supply because of obstruction, communicating channels develop to accommodate blood flow. The peripheral resistance of the collateral vessels is higher because of the smaller diameter of the vessels. |
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Term
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Definition
| The main artery that supplies the head and neck. It arises from the innominate (brachiocephalic) artery on the right and from the aorta on the left CCA. The CCA branches into the internal and external carotid arteries. |
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Term
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Definition
| The narrowing of a vessel opening. |
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Term
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Definition
| A closed sac or pouch, with a definite wall, contains fluid, semi fluid or solid material. |
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Term
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Definition
| A stenosis of sufficient diameter that flow rate and pressure are significantly affected, also referred to as “hemodynamically significant.” |
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Term
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Definition
A symptom of vertebrobasilar insufficiency
manifested by loss of postural control resulting
in sudden periodic falling, not associated with vertigo or
Unconsciousness |
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Term
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Definition
| A speech disorder in which the pronunciation is unclear although the linguistic content and meaning are normal. |
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Term
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Definition
| Abnormal sensations on the skin, such as feelings of numbness, tingling, prickling, or a burning or cutting pain. |
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Term
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Definition
| A defect in the ability to perform voluntary movement. |
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Term
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Definition
| A condition in which the action of swallowing is either difficult to perform, painful, or in which swallowed material seems to be held up in passage to the stomach. |
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Term
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Definition
| Lack of coordination of speech, and failure to arrange words in an understandable way; related to cortical damage. |
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Term
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Definition
| A skin discoloration consisting of large irregularity formed hemorrhagic areas. |
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Term
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Definition
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Term
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Definition
| A local or generalized condition in which the body tissues contain an excessive amount of tissue fluid. |
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Term
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Definition
| Removal of an embolus from a vessel. |
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Term
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Definition
| An obstruction in a vessel from a foreign substance or blood clot. |
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Term
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Definition
| A mass of undissolved matter present in a blood or lymphatic vessel and carried there by the blood. |
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Term
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Definition
| Surgical removal of atherosclerotic material and intimal lining from within an artery. |
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Term
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Definition
| Inflammation of the innermost layer (intima)of an artery. |
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Term
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Definition
| A graft placed within a vessel. |
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Term
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Definition
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Term
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Definition
| Study of the causation of disease. |
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Term
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Definition
| Originating outside an organ or part. |
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Term
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Definition
| Outside of the skull, usually used in reference to vessels or structures outside of the cranium. |
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Term
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Definition
| Discharge or escape, as of blood or other substance from within a vessel into the tissue. |
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Term
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Definition
| Originating from without, opposite of intrinsic. |
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Term
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Definition
| Easily crumpled; term is occasionally used to describe atherosclerotic plaque. |
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Term
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Definition
| uniform circumferential dilatation; spindle shaped. |
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Term
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Definition
| Tissue death, usually as a result of inadequate blood supply; occasionally due to infection. The lack of blood supply may be due to atherosclerosis, embolism, spasm, frostbite, tourniquets, etc. |
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Term
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Definition
| That large muscle of the posterior portion of the lower leg that propels venous blood up the leg it contracts. Commonly referred to as the calf muscle pump. |
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Term
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Definition
| the material used, either organic or inorganic, that is surgically inserted to replace a defect in the body. |
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Term
| Greater saphenous vein (GSV) |
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Definition
| One of two major superficial veins of the lower limb. It originates on the dorsum of the foot, ascends medially along the calf and thigh, and drains into the common femoral vein. It is the longest vein in the body and is the vessel of choice or the lower extremity bypass procedures and it is also used for coronary artery bypass. |
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Term
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Definition
| A blood-filled swelling; refers to an abnormal collection of blood in the body that is typically the result of a broken or ruptured blood vessel. Hematomas can cause a minor skin bruise, or a collection of clotted blood that is deep within a muscle, organ or even the skull. |
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Term
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Definition
| Pain in the calf muscle resulting from passive dorsiflexion of the foot. It is sometimes indicative of deep venous thrombosis. |
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Term
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Definition
| A graft which is similar in structure and origin to the native vessel and is donated from another human being or specimen. |
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Term
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Definition
| obstruction of the outflow from the kidney somewhere in the ureter, bladder, or urethra, causing dilation of the kidney’s collecting system. |
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Term
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Definition
| Producing echoes of higher amplitude than normal for the surrounding medium. |
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Term
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Definition
| amplitude than normal for the surrounding medium. |
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Term
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Definition
| Another name for the internal iliac artery, which supplies the pelvic viscera and musculature. |
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Term
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Definition
| in position. Used to describe a vascular surgery procedure where the greater saphenous vein remains in its anatomical position as the vessel is transformed into an arterial conduit. |
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Term
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Definition
| Originates at the terminal bifurcation of the abdominal aorta |
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Term
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Definition
| Formed by the union of the internal iliac vein which drains the pelvis and the external iliac vein which is a continuation of the common femoral vein. |
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Term
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Definition
| to perform natural function. Used to refer to venous valves which no longer close completely, permitting blood to flow in a backward direction. |
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Term
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Definition
| a localized area of ischemic tissue necrosis due to inadequate arterial blood supply. |
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Term
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Definition
| An event occurring when there is an arterial occlusion or stenosis to the point of insufficient blood flow to an organ. |
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Term
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Definition
| Originates from the union of the right and left iliac veins terminating in the right atrium of the heart. |
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Term
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Definition
| located below the popliteal artery. |
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Term
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Definition
| located below the renal arteries. |
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Term
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Definition
| a fibrous band extending from the anterior superficial iliac spine to the pubis tubercle in the groin. |
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Term
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Definition
| formed by the union of the internal jugular with the subclavian vein. |
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Term
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Definition
| arising from the arch of the aorta, dividing into the right subclavian and right common carotid arteries. |
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Term
| Internal carotid artery (ICA) |
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Definition
| arises from the common carotid artery (CCA) at the carotid bulb, and courses posterolaterally to the base of the skull where it gives rise to vessels which feed the brain, nose, orbit, internal ear, and forehead. |
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Term
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Definition
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Term
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Definition
| soft clot, which is within the walls of a blood vessel. |
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Term
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Definition
| on the same side, opposite of contralateral. |
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Term
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Definition
| major vein subdivided into anterior, external and internal jugular veins bilaterally. |
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