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Titolo:
COMPARISON OF THE UTILITY OF CT SCANS AND INTRAVASCULAR ULTRASOUND INENDOVASCULAR AORTIC GRAFTING
Autore:
VERBIN C; SCOCCIANTI M; KOPCHOK G; DONAYRE C; WHITE RA;
Indirizzi:
UNIV CALIF LOS ANGELES,HARBOR MED CTR,DEPT SURG,1000 W CARSON ST TORRANCE CA 90509 UNIV CALIF LOS ANGELES,HARBOR MED CTR,DEPT VASC SURG TORRANCE CA 90509
Titolo Testata:
Annals of vascular surgery
fascicolo: 5, volume: 9, anno: 1995,
pagine: 434 - 440
SICI:
0890-5096(1995)9:5<434:COTUOC>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLACEMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
C. Verbin et al., "COMPARISON OF THE UTILITY OF CT SCANS AND INTRAVASCULAR ULTRASOUND INENDOVASCULAR AORTIC GRAFTING", Annals of vascular surgery, 9(5), 1995, pp. 434-440

Abstract

Using CT scans and intravascular ultrasound (IVUS), aortic, aneurysm neck, and endoluminal graft cross-sectional dimensions were compared in a canine model before and after placement of endoluminal grafts in normal aortas (n = 10) and in artificially constructed abdominal aorticaneurysms (n = 15). Measurement of diameters (n = 83) revealed an average difference or bias between imaging modalities of 0.17 +/- 0.92 mm. Measurements obtained using IVUS were slightly larger than CT values(8.84 +/- 1.0 vs. 8.65 +/- 1.1, p <0.03) but correlated very well by linear regression analysis (r = 0.948, p <0.02). Analysis of cross-sectional area (n = 44) revealed an average difference or bias of 7.21 +/- 7.76 mm(2) between the two modalities. Again IVUS measurements were larger than CT measurements (65.0 +/- 16.5 vs. 57.9 +/- 11.9, p <0.001) and linear regression analysis showed less correlation (r = 0.897, p<0.001). Qualitative assessment of the graft and stent characteristics was more precise using IVUS. Graft folding, stent-aorta interfaces, and thrombus formation were easily identified by IVUS, whereas these more subtle characteristics were missed by CT scanning and arteriography. These studies demonstrate that IVUS measurements were slightly larger than CT values; however, both modalities demonstrate small bias andgood correlation. Qualitative analysis of the aneurysmal aorta and endoluminal graft using IVUS is comparable to and in some respects more detailed than measurements from CT scanning and arteriography.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/10/20 alle ore 12:48:16