CT and MR imaging of chronic subdural hematomas: a comparative study
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Published on: June 2, 2015
Senem Senturk1, Aslan Guzel, Aslan Bilici
1Department of Radiology, School of Medicine, Dicle University, Diyarbakir, Turkey. snmsenturk@gmail.com
Unlabelled:
QUESATIONS UNDER STUDY / PRINCIPLES: This study was designed to compare CT and MR appearances of chronic subdural haematomas as well as CT- and MR-guided measurements of haematoma thicknesses.
Methods:
CT and MR images of 48 chronic subdural haematomas of 34 patients were reviewed retrospectively. The thickness measurements and imaging characteristics of haematomas were compared.
Results:
Levelling was observed in 25% of haematomas, and most of them (60%) had intrahaematomal membranes. All membranes could be delineated by MR imaging, whereas only 27% were defined by CT. Mixed density (52%) and T1 hyperintensity (59%) were commonly observed in membraned haematomas, but the difference was not statistically significant. Haematomas were measured significantly thicker on MR images. All patients had been treated with burr-hole cranio-tomy and irrigation.
Conclusions:
MR imaging is more sensitive than CT in determining the size and internal structures of chronic subdural haematomas.
