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What is angiography?
Radiographic demonstration of blood vessels after the injection of contrast media.
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Who is on the angiography team?
Radiologist/cardiologist, nurse/surgery technologist, RT
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What are the basic imaging steps of angiography?
- Vessel catheterized under fluoroscopic guidance
- Injector delivers preset amount of contrast media.
- Rapid rate of image acquisition
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What are some contraindications of angiography?
- Contrast media allergy,
- Impaired renal function
- Blood-clotting disorders
- Unstable cardiopulmonary/neurologic status
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What are some contraindications of angiography?
- Bleeding at the puncture site
- Thrombus formation
- Embolus formation,
- Infection
- Contrast reaction
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What equipment is needed for angiography?
- Catheters
- Physiologic monitoring equipment
- Pressure injector
- Fluoroscopic
- Imaging equipment
- Image recording equipment
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What are some characteristics of catheters used in angiography?
- Long, thin tubes placed in vessels; vary in length, shape, diameter; radiopaque, presterilized, preshaped,
- disposable
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What does the physiologic monitoring equipment do during angiography?
- Monitors and records vital patient data
- Takes ECG and pressure readings
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What are the requirements of the fluoroscopic
imaging equipment?
Must provide maximum resolution and produce radiation for long periods of time.
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What type of imaging recording equipment is used during angiographic procedures?
- Vidiotape
- Cineangiographic recording
- Digital
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List the six types of angiographic procedures
discussed in class and include indications of each plus other pertinent notes.
- . 1) Cerebral
- angiography – radiographic study of blood vessels of the brain
- - Vascular stenosis
- - Aneurysm
- - Trauma
- - Arteriovenous malformation
- - Carotid arteriograms are the most common
- 2) Thoracic angiography – study of
- ascending aorta, arch, descending aorta,
- -Pulmonary vessels
- - Aneurysm
- - Congenital abnormalities
- - Vessel stenosis and embolis
- - Trauma
- 3) Angiocardiography – radiologic imaging of the heart and associated structures
- - Coronary artery disease and angina
- - Myocardial infarct
- - Valvular disease
- - Congenital heart anomaly
- - a.k.a. cardiac catheterization
- 4) Abdominal angiography – study of abdominal vasculature
- - Aneurysm
- - GI bleed
- - Trauma
- - Stenosis or occlusion
- 5) Peripheral angiography – study of peripheral vasculature
- - Atherosclerotic disease
- - Vessel occlusion and stenosis
- - Embolus and thrombus
- - Can be arteriogram or venogram
- 6) Lymphography – study of lymph nodes and vessels
- - Assessment of lymphatics in staging of malignancies
- - Assessment of Hodgkin’s lymphoma
- - Peripheral swelling
- - Lower limb procedures are most common
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What is vascular intervention and what
procedures are performed?
Procedures that intervene in a disease process and provide therapeutic outcomes.
- Transcatheter embolization,
- Percutaneous transluminal angioplasty
- Insertion of venous devices.
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What type of venous access devices are inserted
during vascular intervention?
- Peripherally inserted central catheter
- Hickman line
- Subcutaneous port
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What alternate modalities can sometimes be used instead of angiography?
- CT
- MRI
- Nuclear Medicine
- Ultrasound
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