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Titolo:
Optimization of scantiming in abdominal breathhold contrast-enhanced MRA: an empirical guideline
Autore:
Boeve, WJ; Sluiter, WJ; Kamman, RL;
Indirizzi:
Univ Groningen Hosp, Dept Radiol, NL-9713 GZ Groningen, Netherlands Univ Groningen Hosp Groningen Netherlands NL-9713 GZ ningen, Netherlands Univ Groningen Hosp, Dept Stat, NL-9713 GZ Groningen, Netherlands Univ Groningen Hosp Groningen Netherlands NL-9713 GZ ningen, Netherlands
Titolo Testata:
MAGNETIC RESONANCE IMAGING
fascicolo: 2, volume: 19, anno: 2001,
pagine: 193 - 200
SICI:
0730-725X(200102)19:2<193:OOSIAB>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIGITAL SUBTRACTION ANGIOGRAPHY; RENAL-ARTERY STENOSIS; MESENTERIC CIRCULATION; POWER INJECTOR; LIVER; HOLD; TRANSPLANTATION; ACQUISITION; PORTOGRAPHY; ARRIVAL;
Keywords:
magnetic resonance angiography; contrast enhancement; abdomen; portal hypertension;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Boeve, WJ Univ Groningen Hosp, Dept Radiol, Hanzeplein 1, NL-9713 GZ Groningen, Netherlands Univ Groningen Hosp Hanzeplein 1 Groningen Netherlands NL-9713 GZ
Citazione:
W.J. Boeve et al., "Optimization of scantiming in abdominal breathhold contrast-enhanced MRA: an empirical guideline", MAGN RES IM, 19(2), 2001, pp. 193-200

Abstract

The objective of this study to determine a suitable scan timing scheme in contrast enhanced MRA for the depiction of the arterial. the portal and thesystemic venous system in the abdomen with maximum signal intensity in healthy subjects and in patients with cirrhosis. The signal intensity in the aorta, hepatic artery. portal vein, left renal vein and the supra- and infrarenal IVC were measured in 40 consecutive orthotopic liver transplantation candidates with cirrhosis and 20 healthy renal donors in a bolus triggered arterial scan and after 30, 60, 90 and 150 s respectively. The aorta and hepatic artery showed the highest signal intensity on the arterial scan. The portal and left renal vein showed the highest signal intensity after 30 s, the suprarenal IVC after 60 s and the infrarenal IVC after 90 s. No significant differences were found between healthy subjects and patients with cirrhosis. The arterial, portal and systemic venous system in the abdomen can be visualized selectively with maximum signal intensity by proper timing of the scans, hereby reducing redundant scans. Scanning at just the right timeto achieve optimal vessel opacification can he promoted by using data fromthis study. The proposed scan scheme is suitable for subjects with and without cirrhosis. (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:42:53