Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
REDUCING MOTION ARTIFACTS IN IN-VIVO MAGNETIC-RESONANCE-IMAGING MEASUREMENTS OF RELAXATION-TIMES
Autore:
GOWLAND PA; LEACH MO; TANNER SF;
Indirizzi:
CRC,CLIN MAGNET RESONANCE RES GRP SUTTON SM2 5PT SURREY ENGLAND CRC,CLIN MAGNET RESONANCE RES GRP SUTTON SM2 5PT SURREY ENGLAND INST CANC RES,JOINT DEPT PHYS SUTTON SM2 5PT SURREY ENGLAND ROYAL MARSDEN HOSP SUTTON SM2 5PT SURREY ENGLAND
Titolo Testata:
British journal of radiology
fascicolo: 804, volume: 67, anno: 1994,
pagine: 1249 - 1257
Fonte:
ISI
Lingua:
ENG
Soggetto:
INVERSION-RECOVERY SEQUENCE; PULSE;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
P.A. Gowland et al., "REDUCING MOTION ARTIFACTS IN IN-VIVO MAGNETIC-RESONANCE-IMAGING MEASUREMENTS OF RELAXATION-TIMES", British journal of radiology, 67(804), 1994, pp. 1249-1257

Abstract

Robust and accurate methods of measuring relaxation times on commercial scanners have recently been developed. Such methods overcome many machine and sequence dependent errors, but are still subject to errors arising from motion artifacts. This paper considers methods of decreasing the effect of motion artifacts in in vivo T-1 and T-2 measurements. Three conventional techniques:for reducing such artifacts are assessed for their use with relaxation time measurement sequences. It is shown that these techniques do not adversely affect the accuracy of phantom T-1 measurements made with the spin echo/inversion recovery sequence, and of T-2 measurements made using the PHAPS sequence. For in vivo measurements of T-1 it is also shown that these techniques reduce the standard deviation of T-1 measurements in regions of interest and improve the reproducibility of such measurements overall. Two other techniques for reducing motion artifacts were found not to be compatible with the accurate measurement of relaxation times.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:38:28