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Titolo:
DIFFUSION-WEIGHTED MR-IMAGING - NAVIGATED MULTISHOT SE EPI TECHNIQUE FOR CLINICAL USE
Autore:
MURTZ P; FLACKE S; TRABER F; KELLER E; GIESEKE J; FOLKERS P; SCHILD HH;
Indirizzi:
UNIV BONN,RADIOL KLIN,SIGMUND FREUD STR 25 D-53105 BONN GERMANY PHILIPS MED SYST BEST NETHERLANDS
Titolo Testata:
RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren
fascicolo: 6, volume: 168, anno: 1998,
pagine: 580 - 588
SICI:
0936-6652(1998)168:6<580:DM-NMS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
GER
Soggetto:
INTRAVOXEL INCOHERENT MOTION; CEREBRAL-ISCHEMIA; WATER DIFFUSION; NERVOUS-SYSTEM; HUMAN BRAIN; ARTIFACTS; PERFUSION; ECHOES; STROKE;
Keywords:
DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING; DIFFUSION COEFFICIENT; SE EPI SEQUENCE; NAVIGATOR ECHO CORRECTION; TISSUE CHARACTERIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
P. Murtz et al., "DIFFUSION-WEIGHTED MR-IMAGING - NAVIGATED MULTISHOT SE EPI TECHNIQUE FOR CLINICAL USE", RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren, 168(6), 1998, pp. 580-588

Abstract

Purpose: Evaluation of a navigated multi-shot SE EPI sequence for routine clinical use in MR diffusion imaging, Methods: We compared a multi-shot SE EPI sequence with the conventional SE sequence as well as with a single-shot SE EPI sequence on a standard 1.5 Tesla MR-scanner (ACS-NT, Philips Medical Systems) with a conventional gradient system (10 mT/m). Image quality and the reproducibility of the apparent diffusion coefficient were analysed with phantoms and with healthy volunteers. The diffusion coefficients of different brain areas were determined in a group of twenty volunteers. Results: The multi-shot SE EPI sequence showed considerably shorter measurement times and smaller motion artifacts than the SE sequence and was less sensitive to susceptibility artifacts than the single-shot version. The reproducibility of the diffusion coefficients was better than 10%. Conclusion: The navigated multi-shot SE technique is more practicable and meaningful than the SE and the single-shot SE EPI techniques on a standard 1.5 Tesla MR-scannerwith a conventional gradient system. In our opinion it is now the best method for diffusion imaging and should be preferred in clinical use. The determination of diffusion coefficients yields reliable results and characteristic values for different tissue can be obtained.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 00:48:13