Remote brain microhaemorrhages may predict haematoma in glioma patients treated with radiation therapy
To evaluate the prevalence of cerebral remote microhaemorrhages (RMH) and remote haematomas (RH) using magnetic resonance susceptibility-weighted imaging (SWI) among patients treated for gliomas during follow-up.
We conducted a retrospective single centre longitudinal study on 58 consecutive patients treated for gliomas from January 2009 through December 2010. Our institutional review board approved this study. We evaluated the presence and number of RMH and RH found outside the brain tumour on follow-up MR imaging. We performed univariate and bivariate analyses to identify predictors for RMH and RH and Kaplan–Meier survival analysis techniques.
Twenty-five (43%) and four patients (7%) developed at least one RMH or RH, respectively, during follow-up. The risk was significantly higher for patients who received radiation therapy (49% and 8% versus 0%) (p = 0.02). The risk of developing RH was significantly higher in patients with at least one RMH and a high burden of RMH. The mean age of those presenting with at least one RMH or RH was significantly lower.
RMH were common in adult survivors of gliomas who received radiation therapy and may predict the onset of RH during follow-up, mainly in younger patients.
• Brain RMH and RH are significantly more likely to occur after RT.
• RMH occur in almost half of the patients treated with RT.
• RMH and RH are significantly more frequent in younger patients.
• RH occur only in patients with RMH.
KeywordsMagnetic resonance imaging Diagnostic imaging Radiation effects Radiotherapy Intracranial haemorrhages
Laura McMaster provided professional English-language medical editing of this article.
Compliance with ethical standards
The scientific guarantor of this publication is Augustin Lecler.
Conflict of interest
The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
Statistics and biometry
One of the authors has significant statistical expertise.
Written informed consent was waived by the Institutional Review Board.
Our institutional review board approved this study and waived the informed consent requirement due to its retrospective nature.
• observational study
• performed at one institution
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