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Titolo:
MAGNETIC-RESONANCE ANGIOGRAPHY OF THE AORTIC-ARCH
Autore:
CARPENTER JP; HOLLAND GA; GOLDEN MA; BARKER CF; LEXA FJ; GILFEATHER M; SCHNALL MD;
Indirizzi:
HOSP UNIV PENN,3400 SPRUCE ST PHILADELPHIA PA 19104 UNIV PENN,SCH MED,DEPT SURG PHILADELPHIA PA 19104 UNIV PENN,SCH MED,DEPT RADIOL PHILADELPHIA PA 19104
Titolo Testata:
Journal of vascular surgery
fascicolo: 1, volume: 25, anno: 1997,
pagine: 145 - 151
SICI:
0741-5214(1997)25:1<145:MAOTA>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
CAROTID-ARTERY STENOSIS; MR-ANGIOGRAPHY; CONVENTIONAL ANGIOGRAPHY; DUPLEX ULTRASONOGRAPHY; DOPPLER SONOGRAPHY; ENDARTERECTOMY; ARTERIOGRAPHY; CANDIDATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
J.P. Carpenter et al., "MAGNETIC-RESONANCE ANGIOGRAPHY OF THE AORTIC-ARCH", Journal of vascular surgery, 25(1), 1997, pp. 145-151

Abstract

Duplex ultrasound and magnetic resonance angiographic (MRA) studies are the principal noninvasive methods for evaluation of extracranial occlusive disease in patients at risk for stroke, but each has limited ability to diagnose aortic arch and arch vessel disease. Recent favorable reports of the nonnephrotoxic contrast agent Gadolinium (Gd) being used to enhance MRA images of the abdominal aorta prompted us to examine its utility for the aortic arch vessels. Prospectively, 28 patients'uvith suspected carotid or arch vessel disease were imaged by contrast arteriographic examination and MRA+Gd of the aortic arch within 30 days of each other. One (for contrast arteriograms) or two (for MRA) blinded readers measured stenoses with the contrast arteriograms as thestandard. A total of 196 arch vessels containing 58 stenoses and fourocclusions (by arteriogram) were examined with each method. Interobserver agreement for interpretation of MRA studies was substantial (kappa=0.68). MRA detected all anatomic anomalies (e.g., bovine arch). The correlation of MRA with arteriographic scans for arch vessel stenoses >50% was sensitivity, 73% (readers 1 and 2); specificity, 98% (reader 1), 89% (reader 2); positive predictive value, 73% (reader 1), 89% (reader 2); negative predictive value, 98% (readers 1 and 2); accuracy, 97% (reader 1), 98% (reader 2). MRA+Gd is an accurate new noninvasive imaging method for detection of significant aortic arch disease. In itscurrent state of development, however, it cannot obviate the need forcontrast arteriographic examination.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 12:49:22