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Titolo:
EVALUATION OF RAPID GRADIENT-ECHO AND TUR BO-SPIN ECHO SEQUENCES IN MRT OF FOCAL LIVER-LESIONS USING 0.5 TESLA
Autore:
KREFT B; LAYER G; SPILLER L; TRABER F; WOLFF M; GIESEKE J; STEUDEL A;
Indirizzi:
UNIV BONN,RADIOL KLIN,SIGMUND FREUD STR 25 D-53127 BONN GERMANY PHILIPS MED SYST HAMBURG GERMANY
Titolo Testata:
RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren
fascicolo: 6, volume: 161, anno: 1994,
pagine: 512 - 518
SICI:
0936-6652(1994)161:6<512:EORGAT>2.0.ZU;2-4
Fonte:
ISI
Lingua:
GER
Soggetto:
HEPATIC METASTASES; CT; CONTRAST; 1.5T;
Keywords:
LIVER MR TOMOGRAPHY; FOCAL LIVER LESIONS GRADIENT ECHO SEQUENCES; TURBO-SPIN ECHO SEQUENCES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
B. Kreft et al., "EVALUATION OF RAPID GRADIENT-ECHO AND TUR BO-SPIN ECHO SEQUENCES IN MRT OF FOCAL LIVER-LESIONS USING 0.5 TESLA", RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren, 161(6), 1994, pp. 512-518

Abstract

The value of rapid T-1- and T-2-weighted fast field (T-1-FFE, T-2-FFE) gradient-echo sequences and T-2 weighted turbo-spin echo (TSE) sequences in the diagnosis of focal liver lesions using 0.5 Tesla was compared with conventional spin-echo sequences (SE). Amongst 88 liver lesions T-1-SE sequences showed 98%, T-2-TSE sequences showed 92%, T-2-SE sequence showed 84%, T-1-FFE sequence showed 78% and T-2-FFE sequence showed 69%. Direct comparison has shown that TSE sequences are able to demonstrate significantly more lesions (p < 0.05) than T-2-SE sequences. Quantitative assessment has shown that the tumour/liver contrast/noise ratio in the T-1-SE sequence was 118% higher than in the T-1-FFE sequence (p < 0.001). Comparison of T-2 weighted sequences has shown that the tumour/liver contrast/noise ratio was 45% higher in the TSE sequence than in the T-2-SE and 239% higher than in the T-2-FFE sequence (p < 0.001). The results indicate that the TSE sequence should be usedinstead of the conventional T-2-SE sequence because of the reduced time (about 40%), due to improved image quality and increased demonstration rate of liver lesions. Neither T-1-FFE nor T-2-FFE are suitable, when using moderate field strength, to replace T-1-SE or TSE sequences.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 00:57:49