Evaluation of Intracranial Pressure by Transcranial Doppler Ultrasonography in Dogs with Intracranial Hypertension

• Published in: Journal of Veterinary Medical Science Vol. 62; no. 3; pp. 353 - 355
• Main Authors: FUKUSHIMA, Ushio, MIYASHITA, Katsuyuki, OKANO, Shozo, HIGUCHI, Seiichi, TAKASE, Katsuaki, HAGIO, Mitsuyoshi
• Format: Journal Article
• Language: English
• Published: Japan JAPANESE SOCIETY OF VETERINARY SCIENCE 01.03.2000; Japan Science and Technology Agency
• Subjects: Animals; Basilar Artery - diagnostic imaging; canine; Disease Models, Animal; Dog Diseases - diagnostic imaging; Dog Diseases - physiopathology; Dogs; intracranial hypertension; Intracranial Hypertension - diagnostic imaging; Intracranial Hypertension - physiopathology; Intracranial Hypertension - veterinary; Intracranial Pressure; transcranial Doppler ultrasonography; Ultrasonography, Doppler, Transcranial - veterinary; Vascular Resistance
• ISSN: 0916-7250; 1347-7439
• DOI: 10.1292/jvms.62.353

Transcranial Doppler ultrasonography (TCD) has been used to confirm changes in cerebral hemodynamics. In this study, we investigated whether the parameters for the basilar artery measured by TCD were correlated with the intracranial and cerebral perfusion pressures in extreme intracranial hypertension. An intracranial hypertension model was produced in seven dogs by inflating a balloon inserted into the epidural space. The resistance index was compared with the corresponding intracranial pressure and cerebral perfusion pressure values during intracranial hypertension. A significant correlation was recognized between the resistance index and cerebral perfusion pressure. Therefore, measurement of the basilar artery by TCD in the dog with intracranial hypertension is useful in estimating the intracranial circulation in cases where the measurement of intracranial pressure is not available or not indicated.