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Titolo:
CARDIAC ECHO-PLANAR MR-IMAGING - COMPARISON OF SINGLE-SHOT AND MULTIPLE-SHOT TECHNIQUES
Autore:
WETTER DR; MCKINNON GC; DEBATIN JF; VONSCHULTHESS GK;
Indirizzi:
UNIV ZURICH HOSP,DEPT RADIOL,RAMISTR 100 CH-8091 ZURICH SWITZERLAND UNIV ZURICH HOSP,DEPT RADIOL CH-8091 ZURICH SWITZERLAND
Titolo Testata:
Radiology
fascicolo: 3, volume: 194, anno: 1995,
pagine: 765 - 770
SICI:
0033-8419(1995)194:3<765:CEM-CO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARTIFACTS; LIVER; NMR;
Keywords:
HEART, FLOW DYNAMICS; HEART, MR; MAGNETIC RESONANCE (MR), ECHO PLANAR; MYOCARDIUM, MR; VENTRICLES, MR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
D.R. Wetter et al., "CARDIAC ECHO-PLANAR MR-IMAGING - COMPARISON OF SINGLE-SHOT AND MULTIPLE-SHOT TECHNIQUES", Radiology, 194(3), 1995, pp. 765-770

Abstract

PURPOSE: To compare the quality of cardiac images acquired with two- and four-shot echo-planar imaging (EPI) with that of images acquired with single-shot EPI. MATERIALS AND METHODS: Single-, two-, and four-shot EPI was performed to obtain axial images that traversed both cardiac ventricles. The subjects were 10 healthy men whose ages ranged from 22 to 38 years (mean, 27 years). The multiple-shot EPI data were acquired in snapshot (sequential) and cardiac-gated (nonsequential) modes. Image quality was compared by evaluation of the depiction of cardiac structures and analysis of signal intensity, contrast, and signal homogeneity. RESULTS: Multiple-shot EPI depicted the coronary and internal mammary arteries better than did single-shot EPI (P < .05). Intraventricular signal intensity was more homogeneous on multiple-shot images (P < .005). Cardiac-gated acquisition resulted in less image blurring and allowed acquisition of more phases per RR interval. CONCLUSION: Multiple-shot EPI rendered higher quality images than did single-shot EPI.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 03:38:05