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Titolo:
Effect of respiratory phases on MR lung signal intensity and lung conspicuity using segmented multiple inversion recovery turbo spin echo (MIR-TSE)
Autore:
Mai, VM; Chen, Q; Li, W; Hatabu, H; Edelman, RR;
Indirizzi:
Beth Israel Deaconess Med Ctr, Dept Radiol, Boston, MA 02215 USA Beth Israel Deaconess Med Ctr Boston MA USA 02215 l, Boston, MA 02215 USA Harvard Univ, Sch Med, Boston, MA USA Harvard Univ Boston MA USAHarvard Univ, Sch Med, Boston, MA USA
Titolo Testata:
MAGNETIC RESONANCE IN MEDICINE
fascicolo: 5, volume: 43, anno: 2000,
pagine: 760 - 763
SICI:
0740-3194(200005)43:5<760:EORPOM>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
NAVIGATOR CORRECTION; ANGIOGRAPHY; TISSUE;
Keywords:
lung; pulmonary parenchyma; MRI; multiple inversion recovery (MIR); segmented turbo spin echo;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Mai, VM Beth Israel Deaconess Med Ctr, Dept Radiol, 330 Brookline Ave,AN-234, Boston, MA 02215 USA Beth Israel Deaconess Med Ctr 330 Brookline Ave,AN-234 Boston MA USA 02215
Citazione:
V.M. Mai et al., "Effect of respiratory phases on MR lung signal intensity and lung conspicuity using segmented multiple inversion recovery turbo spin echo (MIR-TSE)", MAGN RES M, 43(5), 2000, pp. 760-763

Abstract

The purpose of this study was to determine the effect of respiratory phaseon signal intensity of the lung. Lung images were obtained from eleven healthy human volunteers using a multiple inversion recovery segmented turbo spin echo sequence (MIR-TSE). MIR exploits the difference in T-1 between different tissues to effectively null signal contributions from fat and musclefor improved visualization of the lung. The volunteers were asked to perform breath-holding on end inspiration or end expiration. There was a significant decrease in signal intensity of the lung with average SNR of 7.3 +/- 0.9 vs. 14.4 +/- 0.8 for coronal slices, and 9.5 +/- 1.5 vs. 16.0 +/- 2.4 for sagittal breath-hold images acquired during end inspiration compared withend expiration. It is concluded that MRI of the lungs should be performed during end expiration in order to optimize image quality. Magn Reson Med 43: 760-763, 2000. (C) 2000 Wiley-Liss, Inc.

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Documento generato il 02/12/20 alle ore 15:09:23