Ultrasound of intracranial haematoma

Using a 2Mhz transducer insonating through the temporal acoustic bone window, Italian physicians detected the expansion of an extradural haematoma. In their discussion they highlight that transcranial sonography of brain parenchyma in adults has been proposed by several authors for the evaluation of the ventricular system, monitoring of midline shift, diagnosis and follow-up of intracranial mass lesions. In one study, of 151 patients, 133 (88%) had a sufficient acoustic bone window. Note that the skull contralateral to the acoustic bone window is visualised.

Arrow indicates EDH; asterisk indicates mesencephalon

Bedside detection of acute epidural hematoma by transcranial sonography in a head-injured patient
Intensive Care Med. 2010 Jun;36(6):1091-2