Possibility and Reproducibility of Renal Assessing and Size Measurement by Three-Dimensional vs Two-Dimensional Ultrasonography in Dogs

Objective- To determine the possibility and reproducibility of three-dimensional ultrasonography (۳DUS) and comparison of the achieved measurements to normal two-dimensional ultrasonography (۲DCS). Design- Descriptive study. Animals- ۱۰ young mixed normal dogs, age ۱.۵-۲.۵ year, weighing ۹.۷-۱۲ kg. Procedure- Renal width, length, and depth measured in coronal and transverse sections. The measurements were taken in both ۲DUS and ۳DUS scans. Each kidney was imaged five time s in coronal and transverse section and the measurements were recorded for each image. Statistical analysis-Descriptive analysis, paired t-test. Results- The mean difference of the measurements obtained by ۳DUS in compare with ۲DUS was: ۰.۱۷em for renal length, ۰.۰۸ ernforrenal width, and ۰.۱۳ em for renal depth. There was no significant difference between ۳DUS and ۲DUS. Conclusion and Clinical Relevance- In this study the correlation was seen between ۳DUS and ۲DUS.The۳DUS method gives us extremely useful images for teaching and diagnosing purposes. The ۳DUS image presentation can also be easily demonstrated in rotating ۳Danimation.