Fetal aging via ultrasound exam is another big benefit of imaging over traditional palpation in bovine reproduction, as being able to visually assess the pregnancy improves accuracy significantly. Aging is employed in many situations; it can be done to delineate AI from bull-bred pregnancies, to separate animals into calving groups and monitor for dystocias, and to maximize nutritional efficiency throughout the stages of pregnancy, to name a few. While aging via ultrasound is traditionally done prior to 120 days of gestation, we are able to obtain measurements later than ever with the advent of deeper-penetrating, wider field-of-view transducers.
Identification of fetal anomalies or accidents of gestation can not be done in a practical manner during gestation without the use of diagnostic ultrasound, and is one of many examples that demonstrate the superiority of reproductive ultrasound over manual palpation and other manners of pregnancy diagnosis in cattle.
This week we have showcased some of the more common disorders seen in the bovine fetus.
Many equine practitioners who have not come from a sport horse background can be intimidated by the thought of imaging the superficial and deep digital flexor tendons and the suspensory ligament. Getting comfortable with ultrasounding these structures can help you to pay off your equipment faster and provide an important diagnostic option for your clients.
Tips for good, consistent results!
Use a transducer designed for tendon imaging. These probes are higher frequency (and therefore offer finer detail) than a linear rectal probe, for example. The footprint, or size of the imaging window of the transducer, is also smaller, so the structure takes up a larger portion of the monitor. In addition, a tendon probe is ergonomically designed to make tendon imaging easier. A standoff is useful when evaluating more superficial structures, but is not necessarily required for obtaining a good suspensory image.
Develop a consistent system. There are several “zone” systems out there; what is important is that you use the same method every time so that you know what your labeling means when archived images are recalled.
Always image distal limbs in two planes, and always image bilaterally. Because tendon areas, for example, will differ among animals of various sizes, the best way to judge pathology in one limb is to compare it with the contralateral one. Save images in longitudinal and cross sections, and label them accurately with zone, measurements, and date.
Theresa L. Ollivett, DVM, PhD, DACVIM, Assistant Professor of Food Animal Production Medicine at the University of Wisconsin, held her annual lung ultrasound lab recently.
Dr. Ollivett is known for her research into bovine lung health and advocates the use of on-farm ultrasonography to detect bovine respiratory disease. Weaning calves with clean lungs is one of her passions.
She shared a few images from her lab with us.
Now...What NOT to Do
If you missed our earlier post on Social Media Do's, read that here...
Social media has become many veterinary clients’ dominant source of information, making it almost impossible not to feel some sense of urgency to jump in. But in the rush to start posting content, you could make some critical mistakes.
Did you know...
In a recent AAEP survey, respondents say veterinary social media and social networking are becoming more important for their business.
Veterinarians who integrate social media into their marketing strategy see an uptick on new business leads and retain customer loyalty more than those who do not.
E.I. Medical Imaging's C9OPU-HD transducer is not your average TVA setup—we were the first to introduce a one-piece probe that’s lighter, slimmer, and easier to clean than the old screw-on clamshell handles.