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Titolo:
HEMORRHAGIC AND NONHEMORRHAGIC STROKE - DIAGNOSIS WITH DIFFUSION-WEIGHTED AND T2-WEIGHTED ECHO-PLANAR MR-IMAGING
Autore:
EBISU T; TANAKA C; UMEDA M; KITAMURA M; FUKUNAGA M; AOKI I; SATO H; HIGUCHI T; NARUSE S; HORIKAWA Y; UEDA S;
Indirizzi:
MEIJI COLL ORIENTAL MED,DEPT NEUROSURG,HIYOSHI CHO KYOTO 62903 JAPAN GE YOKOGAWA MED SYST TOKYO JAPAN KYOTO PREFECTURAL UNIV MED,DEPT NEUROSURG KYOTO 602 JAPAN
Titolo Testata:
Radiology
fascicolo: 3, volume: 203, anno: 1997,
pagine: 823 - 828
SICI:
0033-8419(1997)203:3<823:HANS-D>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRAIN; SPECTROSCOPY; APPEARANCE; INVITRO; CATS;
Keywords:
BRAIN, INFARCTION; BRAIN, HEMORRHAGE; BRAIN, MR; MAGNETIC RESONANCE (MR), DIFFUSION STUDY; MAGNETIC RESONANCE (MR), ECHO PLANAR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
T. Ebisu et al., "HEMORRHAGIC AND NONHEMORRHAGIC STROKE - DIAGNOSIS WITH DIFFUSION-WEIGHTED AND T2-WEIGHTED ECHO-PLANAR MR-IMAGING", Radiology, 203(3), 1997, pp. 823-828

Abstract

PURPOSE: To determine if diffusion- and T2-weighted echo-planar magnetic resonance (MR) imaging can be used to detect acute hemorrhagic stroke and to differentiate hemorrhagic from nonhemorrhagic stroke. MATERIALS AND METHODS: A total of 118 examinations (diffusion- and T2-weighted MR imaging) in 19 patients with 27 nonhemorrhagic strokes and in six patients with seven hemorrhagic strokes were performed. The ratios of apparent diffusion coefficient and of signal intensity on T2-weighted MR images in lesions to those in contralateral control areas were calculated. RESULTS: Decreased ADC was shown in lesions of acute (0-3 days) hemorrhagic stroke, as well as in lesions of acute nonhemorrhagicstroke. Hypointense areas were seen on T2-weighted MR images in patients with acute hemorrhagic stroke, in contrast to normal to increased signal intensity in those with acute nonhemorrhagic stroke. Apparent diffusion coefficient tended to remain decreased in hemorrhagic stroke lesions even 100 days after onset, in contrast to the increased coefficient in nonhemorrhagic stroke lesions at the late chronic stage (31 days or older). CONCLUSION: Diffusion- and T2-weighted echo-planar MR imaging can be used to detect and distinguish between acute hemorrhagicand nonhemorrhagic stroke.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 19:24:38