Document Detail

Assessing Circle of Willis blood circulation in dogs with transcranial color-coded duplex sonography.
MedLine Citation:
PMID:  19788040     Owner:  NLM     Status:  MEDLINE    
Insonation of Circle of Willis by transcranial Doppler duplex color sonography is described in 30 healthy dogs with 15 weighing < 33 lb and 15 weighing >33 lb. Imaging was via a temporal window to explore the rostral, middle, and caudal cerebral arteries on both the left and right-hand sides; and through an suboccipital window to study the basilar artery. Normal mean values of the peak systolic velocity (PSV), end diastolic velocity, mean velocity, resistance index (RI), and pulsatility index (PI) were characterized and compared with those obtained in previous studies. There was significant differences in the PSV, RI, and PI in the rostral cerebral artery between dogs weighing < 33 vs. > 33 lb. Mean PSV was higher in weighing over 33 lb, whereas the mean resistive index and mean PI were lower in these dogs.
Francisco J Duque; Jose M Dominguez-Roldan; Patricia Ruiz; Concepcion Zaragoza; Rafael Barrera-Chacon
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association     Volume:  50     ISSN:  1058-8183     ISO Abbreviation:  Vet Radiol Ultrasound     Publication Date:    2009 Sep-Oct
Date Detail:
Created Date:  2009-09-30     Completed Date:  2009-10-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9209635     Medline TA:  Vet Radiol Ultrasound     Country:  United States    
Other Details:
Languages:  eng     Pagination:  530-5     Citation Subset:  IM    
Department of Animal Medicine, Faculty of Veterinary Sciences, University of Extremadura, Avda. Universidad s/n, 10071 Caceres, Spain.
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MeSH Terms
Basilar Artery / physiology,  ultrasonography
Blood Flow Velocity / veterinary
Cerebral Arteries / physiology,  ultrasonography
Cerebrovascular Circulation*
Circle of Willis / physiology,  ultrasonography*
Dogs / physiology*
Pulsatile Flow
Ultrasonography, Doppler, Transcranial / veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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