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Titolo:
DIFFERENTIATING BETWEEN T1 AND T2-ASTERISK CHANGES CAUSED BY GADOPENTETATE DIMEGLUMINE IN THE KIDNEY BY USING A DOUBLE-ECHO DYNAMIC MR-IMAGING SEQUENCE
Autore:
KUPERMAN VY; KARCZMAR GS; BLOMLEY MJK; LEWIS MZ; LUBICH LM; LIPTON MJ;
Indirizzi:
UNIV CHICAGO,MED CTR,DEPT RADIOL,MC2026,5841 S MARYLAND AVE CHICAGO IL 60637 HAMMERSMITH HOSP,DEPT RADIOL LONDON ENGLAND PRESBYTERIAN HOSP,DEPT RADIAT ONCOL NEW YORK NY 00000
Titolo Testata:
Journal of magnetic resonance imaging
fascicolo: 5, volume: 6, anno: 1996,
pagine: 764 - 768
SICI:
1053-1807(1996)6:5<764:DBTATC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
GADOLINIUM-DTPA; RENAL-FUNCTION; GD-DTPA; TRANSIT;
Keywords:
MR IMAGING; RENAL FUNCTION; CONTRAST AGENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
V.Y. Kuperman et al., "DIFFERENTIATING BETWEEN T1 AND T2-ASTERISK CHANGES CAUSED BY GADOPENTETATE DIMEGLUMINE IN THE KIDNEY BY USING A DOUBLE-ECHO DYNAMIC MR-IMAGING SEQUENCE", Journal of magnetic resonance imaging, 6(5), 1996, pp. 764-768

Abstract

Dynamic MR images of the passage of gadopentetate dimeglumine throughthe kidneys of normal rats are obtained using a dual gradient-echo sequence, The amplitudes of gradient echoes are defined by local T1 and T2 values in the tissue, The ratio of these amplitudes, primarily defined by local T2, can be used to differentiate between T1 and T2* effects. This is particularly important with regard to renal studies because, due to a highly inhomogeneous distribution of gadopentetate dimeglumine in the kidney, T2 shortening can impede MR data analysis. To study changes in the observed signal caused by gadopentetate dimeglumine, curves of MR renal intensity versus time were obtained in the cortex and medulla after administration of the contrast agent, Using T2 compensation, distinct temporal peaks were observed in the cortex and outer medulla, indicating a high concentration of gadopentetate dimeglumine in the vascular phase, The authors conclude that this technique can be a useful tool for studying renal function noninvasively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 20:43:06