Cerebrovascular Review Ch.24, 25 Flashcards
Complications of an angiography
Hematoma at the puncture site pseudoaneursym at the puncture site arterial occlusion neurologic problems allergic reactions
most common site for an intraarterial injection for an angiogram
common femoral artery, axillary or brachial are cannulated if necessary
MRI
magnetic resonance imaging, uses radio frequency energy and a strong magnetic field to produce multiplane images
MRA
magnetic resonance angiography, uses a contrast agent and provides high quality images without the need for x-rays
extremely sensitive to the presence of stenosis but tends to overestimate the disease process
CT
Computed tomography, employs ionizing radiation to obtain cross sectional anatomy, used to evaluate presence of cerebral infarctions, tumors, masses or anatomic variations
CTA
Computed tomography angiography, requires the use of intravenous contrast, used to evaluate the status of extracranial and intracranial vessels