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Titolo:
Fluid-attenuated inversion-recovery MR imaging in acute and subacute cerebral intraventricular hemorrhage
Autore:
Bakshi, R; Kamran, S; Kinkel, PR; Bates, VE; Mechtler, LL; Janardhan, V; Belani, SL; Kinkel, WR;
Indirizzi:
SUNYtr,Dento, Millard Fillmore Hosp, Kaleida Hlth Syst, Lucy Dent Inaging C SUNY Buffalo Buffalo NY USA 14260 Kaleida Hlth Syst, Lucy Dent Inaging C
Titolo Testata:
AMERICAN JOURNAL OF NEURORADIOLOGY
fascicolo: 4, volume: 20, anno: 1999,
pagine: 629 - 636
SICI:
0195-6108(199904)20:4<629:FIMIIA>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACUTE SUBARACHNOID HEMORRHAGE; TISSUE-PLASMINOGEN ACTIVATOR; SPIN-ECHO MR; INTRACEREBRAL HEMORRHAGE; MULTIPLE-SCLEROSIS; PULSE SEQUENCES; APPEARANCE; PREDICTOR; DISEASE; VOLUME;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Bakshi, R Lucy Dent Inaging Ctr, 3 Gates Circle, Buffalo, NY 14209 USA Lucy Dent Inaging Ctr 3 Gates Circle Buffalo NY USA 14209 09 USA
Citazione:
R. Bakshi et al., "Fluid-attenuated inversion-recovery MR imaging in acute and subacute cerebral intraventricular hemorrhage", AM J NEUROR, 20(4), 1999, pp. 629-636

Abstract

BACKGROUND AND PURPOSE: Fluid-attenuated inversion-recovery (FLAIR) MR imaging may show subarachnoid hemorrhage (SAH) with high sensitivity. We hypothesized that the FLAIR technique is effective and reliable in the diagnosisof cerebral intraventricular hemorrhage (IVH). METHODS: Two observers evaluated the 1.5-T MR fast spin-echo FLAIR images,T1- and T2-weighted MR images, and CT scans of 13 patients with IVH and the FLAIR images of 40 control subjects. RESULTS: IVH appeared bright on the FLAIR images obtained during the first48 hours and was of variable appearance at later stages. FLAIR MR imaging detected 12 of 13 cases of IVH; no control subjects were falsely thought tohave IVH (92% sensitivity, 100% specificity). However, IVH could not be fully excluded in the third ventricle (20%, n = 8) or in the fourth ventricle(28%, n = 11) on some control images because of CSF pulsation artifacts. Two cases had CT-negative IVH seen on FLAIR images, One case had FLAIR-negative IVH seen by CT. Although the sensitivities of conventional MR imaging (92%) and CT (85%) were also high, FLAIR imaging showed IVH more conspicuously than did standard MR imaging and CT in 62% of the cases (n = 8), FLAIR was as good as or better than CT in showing IVH in 10 cases (77%), FLAIR images showed all coexisting SAH. CONCLUSION: FLAIR MR imaging identifies acute and subacute IVH in the lateral ventricles with high sensitivity and specificity. In cases of subacute IVH, conventional MR imaging complements FLAIR in detecting IVH, The usefulness of the FLAIR technique for detecting third anti fourth ventricular IVHmay be compromised by artifacts, Blood hemoglobin degradation most likely causes the variable FLAIR appearance of IVH after the first 48 hours.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 01:38:45