Ultrasound evaluation of common carotid artery blood flow in the Labrador retriever

BMC Veterinary Research

Rogério M Amorim¹  Marta C T Heckler¹  Maria J Mamprim¹  Danuta P Doiche¹  Denis J Svicero¹ 

[1] School of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, Sao Paulo 18618-970, Brazil

关键词: Dogs;    Velocity;    Blood flow;    Common carotid artery;    Doppler ultrasonography;   

Others  :  1119443
DOI  :  10.1186/1746-6148-9-195

 received in 2012-07-03, accepted in 2013-10-04,  发布年份 2013

【 摘 要 】

Background

Doppler ultrasound (DUS) examination provides quantitative and qualitative information concerning the blood flow in veins and arteries, enabling their morphological evaluation and the collection of hemodynamic data. Dogs and cats as well as humans may display neurological signs of brain hypoperfusion secondary to common carotid alterations. Hence, DUS examination might aid in the differential diagnosis of neurological disorders of ischemic origin, among other causes. The objective of this study was to register normal values for systolic peak velocity, minimum diastolic velocity, diameter and resistance index of both common carotid arteries of 12 healthy Labrador retriever dogs between 2 and 5 years of age. By gathering these values, we might be able to improve the sensitivity of hemodynamic studies in clinically important brain disorders.

Results

There were no statistical differences between the values for the right and left vessels: the systolic peak velocity was 75.8 ± 16 cm/s, minimum diastolic velocity was 12.2 ± 4 cm/s, common carotid diameter was 0.545 ± 0.063 cm, and resistance index was 0.83 ± 0.07.

Conclusions

The results of this study might be used to establish normal parameters for Labrador retriever dogs and thus help in the diagnosis of neurological disorders associated with alterations of the carotid arteries. Similar studies must be performed to evaluate the same parameters in other dog breeds of different sizes and skull conformations.

【 授权许可】

   
2013 Svicero et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

【 参考文献 】

• [1]Carvalho CF: Ultrassonografia Duplex Doppler Vascular: Aspectos Gerais. In Ultrassonografia Doppler em Pequenos Animais. São Paulo: Roca; 2009:87-97.
• [2]Nyland TG, Fisher PE: Evaluation of experimentally induced canine hepatic cirrhosis using duplex Doppler ultrasound. Vet Radiol Ultrasound 1990, 31:189-194.
• [3]Evans HE, Delahunta A: Guia para Dissecação do Cão. 5th edition. Rio de Janeiro: Guanabara-Koogan; 2001.
• [4]Wolff T, Guirguis-blake J, Miller T, Gillespie M, Harris R: Screening for carotid artery stenosis: an update of the evidence for the U.S. Preventive Services Task Forces. Ann Intern Med 2007, 147:860-870.
• [5]Lal BK: Cognitive function after carotid artery revascularization. Vasc Endovascular Surg 2007, 41(Suppl 1):5-13.
• [6]Farkasa E, Luitenb PGM, Bari F: Permanent, bilateral common carotid artery occlusion in the rat: a model for chronic cerebral hypoperfusion-related neurodegenerative diseases. Brain Res Rev 2007, 54:162-180.
• [7]Okajima M, Shimada A, Morita T, Yoshikawa M, Nishida K: Multiple osseous metastases of a carotid body tumor in a dog. J Vet Med Sci 2007, 69(Suppl 3):297-299.
• [8]Wisner ER, Matton JS, Nyland TG: Ultrasonography of the neck. In Veterinary Diagnostic Ultrasound. New York: WB Saunders; 1995:165-169.
• [9]Wisner ER, Matton JS, Nyland TG: Pescoço. In Ultra-som Diagnóstico em Pequenos animais. 2nd edition. São Paulo: Roca; 2005:293-313.
• [10]Schneider PA, Rossman ME, Bernstein EF, Torem S, Ringelstein EB, Otis SM: Effect of internal carotid artery occlusion on intracranial hemodynamics transcranial doppler evaluation and clinical correlation. Stroke 1988, 19(Suppl 5):589-593.
• [11]Lee K, Choi M, Yoon J, Jung J: Spectral waveform analysis of major arteries in conscious dogs by Doppler ultrasonography. Vet Radiol Ultrasound 2004, 2:166-171.
• [12]Cerri GG, Molnár LJ, Vezozzo DCP: Mapeamento dúplex das artérias carótidas e vertebrais. In Doppler. 1st edition. São Paulo: Sarvier; 1998:33-52.
• [13]Jurasic MJ, Lovrencic-huzjan A, Bedekovic MR, Demarin V: How to monitor vascular aging with an ultrasound. J Neurol Sci 2007, 18(Suppl 257):130-142.
• [14]Carvalho CB, Chammas MC, Cerri GG: Princípios físicos do Doppler em ultrassonografia. Ciência Rural 2008, 38:872-879.
• [15]Cerri GG, Molnár LJ, Vezozzo DCP: Avaliação dúplex do fígado, sistema portal e vasos viscerais. In Doppler. 1st edition. São Paulo: Sarvier; 1998:120-121.
• [16]Nyland TG, Mattoon JS: Physical principles, instrumentation and ultrasound diagnosis safety. In Small animal diagnostic ultrasound. 2nd edition. Philadelphia: Saunders; 2002:1-19.
• [17]Barreto JLW, Silva BM, Nóbrega ACL, Thomas TG: Extracranial carotid and vertebral artery flows in brain dead patients. Rev Bras Cardiol 2010, 23(1):57-67.
• [18]Boote EF: AAPM/RSNA physics tutorial for residents: topics in US. Radiographics 2003, 23:1315-1327.
• [19]Merritt CRB: Física do ultrassom. In Tratado de ultrassonografia diagnóstico. 4th edition. Rio de Janeiro: Elsevier; 2012:59-211.
• [20]Rose SC, Nelson TR: Ultrasonographic modalities to assess vascular anatomy and disease. J Vasc Interv Radiol 2004, 15:25-38.
• [21]Szatmári V, Sotonyi P, Vörös K: Normal duplex Doppler waveforms of the major abdominal blood vessels in dogs. A review. Vet Radiol Ultrasound 2001, 42:93-107.