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Titolo:
TRANSPLANT RENAL-ARTERY STENOSIS - EVALUATION OF DIAGNOSIS WITH MAGNETIC-RESONANCE ANGIOGRAPHY COMPARED WITH COLOR DUPLEX SONOGRAPHY AND ARTERIOGRAPHY
Autore:
LOUBEYRE P; CAHEN R; GROZEL F; TROLLIET P; POUTEILNOBLE C; LABEEUW M; MINH VT;
Indirizzi:
CTR HOSP LYON SUD,DEPT RADIOL,CHEMIN GRAND REVOYET F-69495 PIERRE BENITE FRANCE CTR HOSP LYON SUD,DEPT NEPHROL F-69495 PIERRE BENITE FRANCE
Titolo Testata:
Transplantation
fascicolo: 4, volume: 62, anno: 1996,
pagine: 446 - 450
SICI:
0041-1337(1996)62:4<446:TRS-EO>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTRAST MR-ANGIOGRAPHY; VASCULAR COMPLICATIONS; DOPPLER US; ALLOGRAFTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
P. Loubeyre et al., "TRANSPLANT RENAL-ARTERY STENOSIS - EVALUATION OF DIAGNOSIS WITH MAGNETIC-RESONANCE ANGIOGRAPHY COMPARED WITH COLOR DUPLEX SONOGRAPHY AND ARTERIOGRAPHY", Transplantation, 62(4), 1996, pp. 446-450

Abstract

The goal of this study was to assess the value of a three-dimensionalphase contrast magnetic resonance angiography (3D PC MRA) for diagnosing transplant renal artery stenosis (TRAS). Twelve consecutive patients clinically suspected of having TRAS were prospectively enrolled during a period of 18 months. Delays hom transplantation varied from 3 months to 4 years (mean: 18.3 months). Patients first had color Doppler sonography, then MRA-and, on the following day, intraarterial digital subtraction angiography (IADSA), The site of the maximum peak systolicvelocity was noted when doing the report of each color Doppler sonogram, On MRA images, any signal cutoff or any vascular narrowing of morethan 50% of the diameter of the vessel was considered to be a significant stenosis. Eight patients were considered to have TRAS on MRA, butonly two stenoses were noted oil IADSA. The six false-positive results of MRA (due to major intravoxel phase dispersion) were observed whenelevated peak systolic velocities were noted on doppler sonograms (mean: 214 cm/sec). These elevated peak systolic velocities were noted inthe proximal part of the renal artery when there was a tortuous vessel or a sharp angle between the renal artery and the parent vessel. It:is our opinion that 3D PC MRA is of limited value for the diagnosis of renal transplant artery stenosis because of a high number of false-positive results.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:22:30