Possibility of the Use of Three Dimension Ultrasounds and Measurement of Optical Long Axis of Mix Breed Dog
The purpose of this study was to evaluate the possibility of taking three dimensional (3D) ultrasound images for better visualization of canine eye and also taking the normal values of the optical a long axis by using this technique.
A total of 16 (8 males and 8 females) previously healthy 2 years old mix breed dogs. General Electrics Voluson 730-Pro ultrasound equipment with "3D small parts" option of a 3D and 4D linear trapezoid 5-12 MHz transducer was applied for all the examinations. Ultimately the normal values of the optical long axis were measured from a line between cornea and optic disc in males and females, lefts and rights. All the obtained data were analyzed by paired sample T-Test statistically.
The 3D ultrasonography method was found to be suitable for ophthalmic purposes. The relationships and connections between vitreous membranous, retina, and ocular wall are finely displayed and due to the stored 3D ultrasound tissue information. The values of the optical long axis in obtained 3D images were measured. There was a significant difference between male and female dogs but there was not any between left and right eye as it was expected (p<0/05).
It was so fast that a real-time 4D reconstruction could be performed too. Axial ocular length is significantly longer in the human male than the female. In veterinary medicine, ocular biometry can be used in establishing lens implant size, calculating lens power, and estimating prosthetic globe size after enucleation.