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Titolo:
ECHO-PLANAR IMAGING OF THE LIVER WITH A STANDARD MR-IMAGING SYSTEM
Autore:
BUTTS K; RIEDERER SJ; EHMAN RL; FELMLEE JP; GRIMM RC;
Indirizzi:
MAYO CLIN & MAYO FDN,MAGNET RESONANCE LAB,200 1ST ST SW ROCHESTER MN 55905 MAYO CLIN & MAYO FDN,MAGNET RESONANCE LAB,200 1ST ST SW ROCHESTER MN 55905
Titolo Testata:
Radiology
fascicolo: 1, volume: 189, anno: 1993,
pagine: 259 - 264
SICI:
0033-8419(1993)189:1<259:EIOTLW>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
GRADIENT-ECHO; ARTIFACTS; SEQUENCES; ABDOMEN; ACQUISITION; SUPPRESSION; RESOLUTION; RESONANCE; CONTRAST; BREATH;
Keywords:
LIVER NEOPLASMS, MR; MAGNETIC RESONANCE (MR), COMPARATIVE STUDIES; MAGNETIC RESONANCE (MR), ECHO PLANAR; MAGNETIC RESONANCE (MR), RAPID IMAGING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
K. Butts et al., "ECHO-PLANAR IMAGING OF THE LIVER WITH A STANDARD MR-IMAGING SYSTEM", Radiology, 189(1), 1993, pp. 259-264

Abstract

PURPOSE: A multisection, whole-body echo-planar imaging (EPI) sequence was developed to obtain T2-weighted images of the liver in one 18-second breath hold with a standard magnetic resonance (MR) imaging system. MATERIALS AND METHODS: This capability was achieved by dividing thedata acquisition period into eight interleaved segments rather than one or two as implemented previously with EPI systems having high-powergradient subsystems. RESULTS: The interleaved echo-planar images had excellent depiction of anatomy and no identifiable respiratory artifact. In 26 lesions in 12 patients, the eight-shot echo-planar images (2,000/66 [repetition time msec/echo time msec]) had superior contrast compared with conventional T2-weighted spin-echo (SE) images (2,500/60) by an average factor of 1.22 +/- 0.31 (standard deviation) and an average contrast-to-noise ratio relative to conventional T2-weighted SE images of 0.85 +/- 0.22. CONCLUSION: With a conventional MR imaging system, breath-hold T2-weighted echo-planar images of the liver are comparable in diagnostic quality to conventional SE images.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 05:05:52