Ultrasound is an imaging technique that does a non-evasive and non- painful test for diagnosis and staging of diseases. It uses sound waves in its application. In case of animals, ultrasound with biopsy is an excellent tool that helps the veterinarians to make effective diagnosis of the pets. Using this method, veterinarians obtain tissue samples without submitting the pet to any form of surgery.
Ultrasound biopsy in animals requires collection of cells or tissues from a specific site such as an organ (kidney or liver). This procedure can be performed by using two methods- needle aspirate or core needle biopsy. These methods are used while looking for signs of infection, cancer, during diagnosis of undetermined mass or for diagnosis of other abnormal conditions in animals. The collected cell or tissue is examined under a microscope. Pets going through ultrasound with biopsy are given anaesthesia so that they remain still for the exam. Most of the animals have hair or coat on their body and these coats get shaved before performing biopsy ultrasound on these animals. Every possible precaution is taken to prevent the animal from receiving “razor burn”. Let us look closely at the procedure of biopsy with ultrasound in equines.
Renal biopsy in equines-
Renal biopsy or the biopsy of the kidney involves clotting problems. Therefore, biopsy should be performed using sonographic guidance to obtain an accurate sample and reduce the risk of any complication. It is advisable to perform biopsy with ultrasound on the right kidney of equine as the left kidney is loosely attached to the abdominal wall. The procedure requires the placement of ultrasound transducer in a sterile and a site to take sample from is identified. The biopsy location is determined by ultrasound examination. A local anaesthesia is then injected at the biopsy site. After that, a stab incision is made and biopsy needle is advanced through the stab incision. A second assistant may perform sonographic guidance during the procedure. The biopsy sample is then taken out and studied under a microscope for the diagnosis of problem in the kidney. Used equine ultrasound machine is advised for the procedure as it can be bought at an affordable price with the guarantee of effective results.