One of the most frequently asked questions that we get is, “What is the difference between a convex rectal and linear rectal probe?” At ReproScan, we strive to have you set up for success, and in doing so, we want to help you select the probe that will best fit your needs.
Our linear probe features a high frequency image but shoots a shallower image than our convex probe. Our linear probes have a depth of up to 16 cm, dependent on your machine, but most common settings are between 8-9 cm deep. This probe is ideal for pregging short breds or identifying ovarian structures, as the detailing gives you a very detailed image. The more detailed nature of the linear probe also makes it ideal for equine applications. The linear probe only shoots an area about the size of a credit card. This lack of depth can mean that longer pregnancies are easier to miss, especially if they are over the pelvic brim. Fetal aging can also be a challenge, once the pregnancies are over 90 days, as it can be difficult to get a fetal measurement into the viewing window.
Our convex probe features a higher depth and a lower frequency image. Paired with a ReproArm, this probe is ideal for extension arm ultrasound. We recommend this pairing for a broad range of pregnancies, as it provides up to 24 cm of depth, also dependent on your machine, allowing for up to 7 times the scanning area of the linear probe. While the convex probe sacrifices some detailing that you may get with the linear probe, the larger viewing area provides more information for fetal aging and identifying abnormalities, which can help you add value for your clients. The convex probe paired with the ReproArm is also ideal for beginners to learn with. This pairing provides the potential to age after the fetus has dropped off the pelvic brim. The convex probe can be put to work in a variety of applications such as small ruminants.
Check out the video below to see the difference in action! Please remember to give us a call at 877-890-2411 if you have any questions or if we can help you decide on the right probe or settings for you.