Identifying ovine transcranial acoustic windows


de Souza-Daw, Tony; Lewis, Philip M.; Stewart, Robert; Junor, Paul; Maller, Jerome; Hoang, Thang Manh; Nguyen, Tien Dzung; Manasseh, Richard


Transcranial Doppler ultrasound (TCD) is used to measure cerebral blood flow velocity in patients with cerebrovascular pathology. The task of locating an adequate acoustic window, through which TCD might be performed, is frequently time consuming or impossible for patients with thick or dense temporal bones. We examined the possibility of utilising B-Mode ultrasound images to guide detection of acoustic windows prior to TCD. B-Mode images of the temporal bone were acquired on deceased sheep shortly after death. We found that on selected sheep, the inner table of the temporal bone was visible on B-Mode imaging. We suggest that visibility of the inner table of the temporal bone on B-Mode imaging is associated with a high probability of successful TCD at that location.

Publication year


Publication type

Conference paper


IFMBE proceedings: Mega-conference on biomedical engineering, the 4th International Conference on the Development of Biomedical Engineering (BME 2012), Ho Chi Minh City, Vietnam, 08-12 January 2012 / Vo Van Toi, Nguyen Bao Toan, Truong Quang Dang Khoa and Tra Ha Lien Phuong (eds.), Vol. 40, pp. 69-71






Copyright © 2012 International Federation for Medical and Biomedical Engineering.