Ultrasonography of the equine neonatal kidney.

This research study used ultrasonography, a type of imaging technique, to examine the kidneys of neonatal Thoroughbred foals, with the purpose of defining their appearance and size and to establish a routine imaging protocol. This will enable more informed interpretations of renal images in the early days after birth.

Research Context and Objectives

• The study was conducted on the ultrasonography of the neonatal kidney in the foal, specifically thoroughbred foals. Ultrasonography is a medical imaging technique that uses high-frequency sound waves to visualize internal body structures.
• The main objective of the research was to define the ultrasonographic appearance and size of the kidneys in neonatal thoroughbred foals. Further, the study sought to establish an imaging protocol that ensures all regions of the kidneys are examined.

Methods and Procedures

• The study enlisted 6 normal thoroughbred foals, with an average age of 5 days.
• Through ultrasonography, the researchers were able to differentiate between various parts of the kidney such as the renal cortex, medulla, terminal recesses, renal crest, and pelvis. Additionally, the researchers could identify the ureter, which carried urine, and the renal, interlobar, and arcuate vessels.
• The researchers also identified the correct placement of the ultrasonographic probe for the most accurate examination. For the right kidney, the probe was placed at the 14-17th intercostal spaces and paralumbar fossa. Meanwhile, for the left kidney, the probe was positioned at the 16th or 17th intercostal spaces and paralumbar fossa.
• Perirenal structures, including the caudate lobe of the liver, the dorsal extremity of the spleen, the adrenals, the aorta and caudal vena cava, were also identified in the imaging process.

Implications of the Research

• Understanding the normal appearance of the neonatal kidney via ultrasonography is crucial for identifying deviations from normality, which can indicate potential pathological conditions.
• The imaging protocol established through this study provides a routine procedure that will ensure all regions of each kidney are examined. This is particularly important in the first few days following birth where prompt detection and treatment of renal anomalies can be critical.
• The results of the study allow veterinary practitioners to be better equipped when handling neonatal foals, particularly in terms of identifying and diagnosing renal anomalies at an early stage.