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Titolo:
CT angiography
Autore:
Rankin, SC;
Indirizzi:
Guys Hosp, Dept Radiol, London SE1 9RT, England Guys Hosp London EnglandSE1 9RT p, Dept Radiol, London SE1 9RT, England
Titolo Testata:
EUROPEAN RADIOLOGY
fascicolo: 2, volume: 9, anno: 1999,
pagine: 297 - 310
SICI:
0938-7994(1999)9:2<297:CA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
RENAL-ARTERY STENOSIS; ABDOMINAL AORTIC-ANEURYSMS; DIGITAL SUBTRACTION ANGIOGRAPHY; SPIRAL COMPUTED-TOMOGRAPHY; INTERNAL CAROTID-ARTERY; VENTILATION-PERFUSION SCINTIGRAPHY; MAXIMUM INTENSITY PROJECTIONS; ACUTE PULMONARY-EMBOLISM; ENHANCED MR-ANGIOGRAPHY; SHADED SURFACE DISPLAY;
Keywords:
CT angiography; carotid artery; aorta; pulmonary arteries; renal arteries; technique;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
95
Recensione:
Indirizzi per estratti:
Indirizzo: Rankin, SC Guys Hosp, Dept Radiol, St Thomas St, London SE1 9RT, England Guys Hosp St Thomas St London England SE1 9RT SE1 9RT, England
Citazione:
S.C. Rankin, "CT angiography", EUR RADIOL, 9(2), 1999, pp. 297-310

Abstract

The advent of spiral (helical, volume) CT has revolutionised the performance of body CT and allowed the development of CT angiography (CTA). CT angiography is a non-invasive method of visualising the vascular system and in some instances can replace conventional angiography. In spiral CT a volume of data is obtained rapidly with no respiratory misregistration at peak vascular opacification following the peripheral injection of contrast. Appropriate timing will ensure that either the venous or arterial tree is visualised and from the volume of data multiple overlapping slices can be obtained to generate 2D and 3D images with no increase in radiation to the patient. CT angiography may be performed as a dedicated study or be undertaken retrospectively using post-processing of data from a conventional diagnostic spiral scan to provide additional information about the vascular tree. When undertaken as a dedicated study CTA is quicker, less invasive and less costly than a conventional angiogram with a decrease in the radiation dose to the patient; however, the spatial resolution is limited with vessels less than 2 mm not visualised and there is no contrast saving.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 11:47:49