===Computed tomography===

{{::bilateral_chronic_subdural_hematoma_ct.jpg?300|}}

Bilateral hematomas may lead to medial compression of both ventricles resulting in a narrow, slit-like elongated ventricle (the anterior horns sharply pointed and approaching one another so called ‘squeezed ventricle,’ ‘hare’s ears sign, or ‘rabbit’s ears’)
((Marcu H, Becker H. Computed-tomography of bilateral isodense chronic subdural hematomas. Neuroradiology. 1977;14:81–3.))
((Ellis GL. Subdural haematoma in the elderly. Emerg Med Clin North Am. 1990;8:281–94.))
((Karasawa H, Tomita S, Suzuki S. Chronic subdural haematomas: Time density curve and iodine concentrations in enhanced CT. Neuroradiology. 1987;29:36–9.))
((Kim KS, Hemmati M, Weinberg P. Computed tomography in isodense subdural haematoma. Radiology. 1978;128:71–4.)).

see also [[Bilateral isodense chronic subdural hematoma]]

===Magnetic resonance imaging===
Magnetic resonance imaging is a more sensitive modality.