Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
MRA of hemodialysis access grafts and fistulae using selective contrast injection and flow interruption
Autore:
Bos, C; Smits, JHM; Zijlstra, JJ; van der Mark, WAMA; Blankestijn, PJ; Bakker, CJG; Viergever, MA; Mali, VPTM;
Indirizzi:
Univ Med Ctr Utrecht, Image Sci Inst, Dept Radiol, Utrecht, Netherlands Univ Med Ctr Utrecht Utrecht Netherlands t Radiol, Utrecht, Netherlands Univ Med Ctr Utrecht, Dept Nephrol, Utrecht, Netherlands Univ Med Ctr Utrecht Utrecht Netherlands Nephrol, Utrecht, Netherlands
Titolo Testata:
MAGNETIC RESONANCE IN MEDICINE
fascicolo: 4, volume: 45, anno: 2001,
pagine: 557 - 561
SICI:
0740-3194(200104)45:4<557:MOHAGA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE ANGIOGRAPHY; THROMBOSIS;
Keywords:
contrast-enhanced MRA; interventional MR; hemodialysis access; flow artifacts; selective contrast injection;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Bos, C AZU, Room E01-334,Heidelberglaan 100, NL-3584 CX Utrecht, Netherlands AZU Room E01-334,Heidelberglaan 100 Utrecht Netherlands NL-3584 CX
Citazione:
C. Bos et al., "MRA of hemodialysis access grafts and fistulae using selective contrast injection and flow interruption", MAGN RES M, 45(4), 2001, pp. 557-561

Abstract

MR is a potentially attractive modality for evaluating hemodialysis accessanatomy and function. However, the wide range of flow rates in the hemodialysis access complicates interpretation of phase contrast, time-of-flight, and even contrast-enhanced MR angiograms, At high flow rates, signal voids may easily arise at mild narrowings or sharp-angled anastomoses. A method is proposed which Visualizes hemodialysis accesses without flow artifacts. Diluted Gd-DTPA is hand-injected directly into the access, while a cuff is used to reduce and subsequently interrupt access flow. Filling of the accessis monitored using a fast projection technique with complex subtraction. When filling is satisfactory, a 3D acquisition is started. The feasibility of this selective contrast-enhanced MR angiography technique is demonstratedin four Cimino-fistulae and four PTFE grafts. Magn Reson Med 45: 557-661, 2001. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 13:08:40