angiography


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Related to angiography: Cerebral angiography, Angiography of heart

angiography

[‚an·jē′äg·rə·fē]
(medicine)
Roentgenographic visualization of blood vessels following injection of a radiopaque material.
References in periodicals archive ?
Growing geriatric population, increasing prevalence of chronic diseases, technological innovations, and rising demand for diagnostic procedures are propelling the growth of the global angiography devices market.
Applying x-ray in angiography and angioplasty operations imposes many side effects on a patient's genetics and body system", Haji Babayee asserted, "after collision of X-ray with cells some physical effects such as ionizing heat and subsequent chemical and biological effects causing irreparable damage to living cells occur which depending on the severity, may include redness of the skin, minor burns, hair loss, bleeding, infertility, necrosis and cell death.
CT angiography, much like conventional cath data, cannot predict potential rupture of nonobstructive coronary plaques.
Prospective ECG-gated CT angiography is a technically robust, noninvasive imaging technique for the evaluation of vascular disease.
Group 1: Patients who had no evidence of neurocranial injury on CT and who had not undergone angiography (n = 12);
Deaths from coronary heart disease and admissions for unstable angina and myocardial infarction (heart attack) were more common in patients deemed appropriate for coronary angiography but who had not received it," researchers said.
When all the segments evaluated were included in this comparison, the diagnostic accuracy, sensitivity, specificity, positive and negative predictive values of MSCT coronary angiography to detect stenosis higher than 50% were 91%, 67%, 97%, 85% and 92%, respectively.
Only the predefined risk factors were independently associated with positive CT angiography on limited logistic regression (OR 24.
Recently, the use of invasive routine angiography in stable patients has been discouraged because of the high number of negative examinations (13-15) and the availability of alternative noninvasive diagnostic methods, such as helical or multislice CTA.
The authors concluded that CT angiography was an excellent screening tool for patients with suspected TIA or stroke.
However, the increased rate of angiography use at hospitals with on-site capability has not been associated with better outcomes following angiagraphy, including survival (McClellan, McNeil, and Newhouse 1994; Llevadot et al.
Each year, more than 1 million people in the United States undergo coronary angiography, a procedure in which a tiny probe is threaded into the arteries leading to the heart in an effort to locate blocked blood vessels.