Supported by the Merck Foundation, PO Box 2000, Rahway, NJ 07065-0900 and Acuson Computed Sonography, PO Box 7393, Mountain View, CA 94039-7393.
BIPLANE TRANSESOPHAGEAL ECHOCARDIOGRAPHY IN THE DOG: TECHNIQUE, ANATOMY AND IMAGING PLANES
Article first published online: 23 MAY 2005
Veterinary Radiology & Ultrasound
Volume 36, Issue 3, pages 212–226, May 1995
How to Cite
Loyer, C. and Thomas, W. P. (1995), BIPLANE TRANSESOPHAGEAL ECHOCARDIOGRAPHY IN THE DOG: TECHNIQUE, ANATOMY AND IMAGING PLANES. Veterinary Radiology & Ultrasound, 36: 212–226. doi: 10.1111/j.1740-8261.1995.tb00250.x
Funding for Dr. Loyer's residency program provided by the Merck Foundation. Dr. Loyer's current address is: Veterinary Referral Center of Colorado, 2401 South Downing St., Denver, CO 80210-5811.
- Issue published online: 23 MAY 2005
- Article first published online: 23 MAY 2005
- Received January 12, 1994; accepted for publication June 14, 1994.
- transesophageal echocardiography;
- cardiac imaging;
- Doppler echocardiography;
To determine the feasibility of transesophageal echocardiography (TEE) in dogs, biplane TEE was performed in 6 normal, anesthetized dogs, using a 10 mm × 110 cm endoscopic TEE transducer. Positioning was confirmed by fluoroscopy, and imaging planes were confirmed by necropsy examination.
A transgastric position provided only a limited view of the left ventricular apex. Three TEE positions over the base of the heart were identified. A caudal position provided excellent images in both transverse and longitudinal planes, but alignment with flow for Doppler examination was poor. A middle position provided long axis views of the left ventricular inflow region and mitral valve suitable for Doppler examination. A cranial position provided excellent views for both anatomic and Doppler examination of right and left ventricular outflow and associated great vessels.
We conclude that biplane TEE provides unique views of the heart in dogs which are complementary to, and often superior to, transthoracic views for evaluation of structures at the heart base.