HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Alemany, M. Articles by Raininko, R. Search for Related Content PubMed PubMed Citation Articles by Alemany, M. Articles by Raininko, R.

Coexistence of Microhemorrhages and Acute Spontaneous Brain Hemorrhage: Correlation with Signs of Microangiopathy and Clinical Data¹

¹ From the Departments of Radiology (M.A., R.R.) and Internal Medicine (A.S., A.T.), Uppsala Hospital, Uppsala, Sweden; and the Department of Radiology, Turku University Hospital, Turku, Finland (P.S.). From the 2002 RSNA Annual Meeting. Received March 26, 2004; revision requested June 4; final revision received February 10, 2005; accepted February 22. Supported by grants from the Swedish Medical Research Council, the Stroke Foundation, and the Selander Foundation. Address correspondence to M.A., Hospital Municipal de Badalona (Resonancia Magnética), Via Augusta 9-13, 08911 Badalona, Barcelona, Spain (e-mail: malemany{at}crccorp.es).

Purpose: To evaluate prospectively with magnetic resonance (MR) imaging the coexistence of microhemorrhages (MHs) in white patients with acute spontaneous intraparenchymal hemorrhage (IPH) and acute ischemic stroke and to study the association with imaging findings of microangiopathy and various clinical data.

Materials and Methods: Before examinations, informed consents were signed by either the patient or a relative. The study was carried out with the approval of the local ethics committee. MR imaging was performed in 90 patients with acute stroke: 45 with acute spontaneous IPHs (24 men and 21 women; median age, 65 and 68 years, respectively) and 45 age-matched control subjects without intracranial hemorrhages (26 men and 19 women; median age for both, 67 years), as determined at computed tomography. MR imaging included transverse T1- and T2-weighted spin-echo, transverse fluid-attenuated inversion recovery, transverse and coronal T2*-weighted gradient-echo, and, in 50 patients, diffusion-weighted sequences. Presence of MHs and signs of microangiopathy, such as T2 hyperintensities or lacunae, were recorded in the white and deep gray matter. The relationships between MH and IPH and between MH and T2 hyperintensities were analyzed by means of regression analysis. Different clinical features, such as arterial hypertension or diabetes, were registered and correlated with the image findings by means of regression analysis.

Results: MHs were found in 64% of patients with IPH (29 of 45) and 18% of control subjects (eight of 45). A statistically significant relationship between MH and IPH was determined (P < .001). Among the 29 patients with IPH and MH, 24 (83%) had T2 hyperintensities and 13 (45%) had lacunae; among the 16 patients without MH, seven (44%) had T2 hyperintensities and three (19%) had lacunae. A relationship between MH and occurrence and extent of T2 hyperintensities was also identified (P < .001). There was no clear relationship with the clinical data studied.

Conclusion: The results support a correlation between the presence of imaging signs of cerebral microangiopathy, clinically silent MHs, and acute IPHs.

© RSNA, 2006

This article has been cited by other articles:

				C. Cordonnier, R. Al-Shahi Salman, and J. Wardlaw Spontaneous brain microbleeds: systematic review, subgroup analyses and standards for study design and reporting Brain, August 1, 2007; 130(8): 1988 - 2003. [Abstract] [Full Text] [PDF]

				V. Palumbo, J. M. Boulanger, M. D. Hill, D. Inzitari, A. M. Buchan, and on behalf of the CASES Investigators Leukoaraiosis and intracerebral hemorrhage after thrombolysis in acute stroke Neurology, March 27, 2007; 68(13): 1020 - 1024. [Abstract] [Full Text] [PDF]