Local cerebral blood flow assessment using transcranial Doppler ultrasonography in a dog with brain infarction in the right middle cerebral artery territory

• Published in: Journal of Veterinary Medical Science Vol. 84; no. 10; pp. 1385 - 1390
• Main Authors: ISHIZUKA, Tomohito, TAKIGUCHI, Mitsuyoshi, OHTA, Hiroshi, OSUGA, Tatsuyuki, SASAOKA, Kazuyoshi, SASAKI, Noboru, MORISHITA, Keitaro
• Format: Journal Article
• Language: English
• Published: Tokyo JAPANESE SOCIETY OF VETERINARY SCIENCE 2022; Japan Science and Technology Agency; The Japanese Society of Veterinary Science
• Subjects: Blood flow; Cerebral blood flow; Cerebral infarction; critical care; Doppler effect; Edema; Internal Medicine; ischemic brain disease; neuroimaging; neurology; ultrasonography; Ultrasound
• ISSN: 0916-7250; 1347-7439; 1347-7439
• DOI: 10.1292/jvms.22-0310

A 12-year-old neutered male Chihuahua was diagnosed with acute brain infarction in the right middle cerebral artery (MCA) territory. Transcranial Doppler ultrasonography (TCD) was performed to assess the local cerebral blood flow at the time of diagnosis and after 4 and 31 hr. Initially, the right MCA retained blood flow but with a lower cerebral blood flow velocity (CBFV; 14.9 cm/sec) than the left MCA (27.9 cm/sec). The TCD vascular resistance variables were higher in the right than in the left MCA. An increase in the CBFV and a decrease in TCD vascular resistance variables were observed, consistent with improvements in neurological symptoms. TCD can be a non-invasive, and easy-to-use modality for bedside monitoring of cerebral edema and infarction.