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Titolo:
Ultrafast MR grid-tagging sequence for assessment of local mechanical properties of the lungs
Autore:
Chen, Q; Mai, VM; Bankier, AA; Napadow, VJ; Gilbert, RJ; 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 MIT, Dept Mech Engn, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Dept Mech Engn, Cambridge, MA 02139 USA
Titolo Testata:
MAGNETIC RESONANCE IN MEDICINE
fascicolo: 1, volume: 45, anno: 2001,
pagine: 24 - 28
SICI:
0740-3194(200101)45:1<24:UMGSFA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPATIAL MODULATION; WALL MOTION; ECHO TIMES; MAGNETIZATION; DEFORMATION; CONTRAST; TONGUE; HEART; TAGS;
Keywords:
MRI; grid tagging; SPAMM; lung; pulmonary mechanics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Chen, Q Evanston NW Healthcare, Dept Radiol, Evanston, IL 60201 USA Evanston NW Healthcare Evanston IL USA 60201 anston, IL 60201 USA
Citazione:
Q. Chen et al., "Ultrafast MR grid-tagging sequence for assessment of local mechanical properties of the lungs", MAGN RES M, 45(1), 2001, pp. 24-28

Abstract

While MR imaging with tagged magnetization has shown great utility in the study of muscle mechanics, the evaluation of pulmonary mechanics has long been hindered by the technical difficulties in MR imaging of lung parenchyma. In this study a fast MR grid-tagging technique is, described for dynamic assessment of regional pulmonary deformation. The method is based on a fastFLASH sequence with short TR and short TE. Tagging was achieved by using double DANTE pulse train or inversion pulses. Our results show that this technique is able to detect changes of the tagging grid caused by physiological deformation of the lung. Quantitative analysis of the data shows that this method is capable of assessing local pulmonary mechanics. The applicationof this technique could improve our understanding of ventilatory control, and thus provide a unique metric for assessing pulmonary disorders. Magn Reson Med 45:24-28, 2001. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 21:02:31