Making Equine Ultrasound Safe and Affordable For Breeders

Welcome!  This page will get you started on your new CTS-5500V+.  Though after this page, you should definitely go through the section of this site covering the step-by-step work flow on the CTS-5500V as well.  Each page in that section of the site will consist of an image of the console and some written notes.  The buttons and knobs are a little different on the newer CTS-5500V+ (which I will cover below), but the work flow is pretty much identical.

I strongly recommend going through this training at your kitchen table, simply imaging your neck or wrist, and rehearsing the total work flow a dozen times or more, to really get solid on the steps of operating the system itself, before taking it out to work with one of your mares. Think of it as learning to drive a stick-shift car. You want to get the steps mastered, in order, so you can stop worrying about the vehicle and simply enjoy the scenery.

So let’s get started … Work through each of the sections below, in the order they appear, and then go back and review as necessary. And practice!

Also, click here to download the Operator’s Manual.  (Or right-click that link and choose “Download linked file as …” or “Save target as …” to save it to your computer.)

And again, you can mostly follow the same steps in the CTS-5500V section, with only a few main changes:

1.) The probe goes into the back the opposite direction.  (This is pretty obvious when you go to attach it.)

2.) You may want to press the L/R button on the left side of your console to flip the direction the screen displays the image so that it matches how you are standing when scanning a mare.

3.) You probably want mm instead of cm for your measurements.  Go into the SETUP (just to the right of the trackball) and choose Measurement Set Up and then change the unit of distance from cm to mm.  (Use your trackball or value dial to scroll through these menus.)  With that changed, press SETUP again to save and exit.

4.) The “Exam” button allows you to choose Equine — but most often this is named “Repro of Female,” and when you have it selected you can press the letter “S” to set it as your default.  But first bump your B gain dial up to about 90 and set your frequency to 5.0 MHz.  Then go into “Exam” and choose the Equine exam, press “U” to update the exam to make these your new defaults, and then press “S” to set it as your default exam type.  Choose Equine again and press Enter.  All done!

5.) Instead of a Depth dial, you have a Depth toggle switch now.

6.) When you go to put in your mares, you can use the ID button (as opposed to the “New ID” button, which assigns a random ID number only).  If you use the ID button to enter in all of your mares ahead of time, when you press ID later, you can scroll up to the “Import” option (using your trackball or your Value dial) and press Enter, and then select the mare you want from the list, and press Enter TWICE to get back to your main screen and have the horse’s name down at the bottom of the screen.

7.) To get to the split-screen mode, actually press in on the B gain dial.  (It’s also a button.)  Pressing it again takes you to quad-screen, and pressing it again takes you back to the normal screen.   You use the display select to freeze one side of the image, then the freeze button to freeze the other side.  Then display select switches between the two, and you can scroll back with your cineloop in either.  This feature takes some practice.  Get in some time with it indoors just playing with it yourself before going out to use it when working with mares.


Now, when it comes to the best settings . . .

Write down the default settings that are set up on the ultrasound already.  (All those numbers on the left side.)  Those might do you well.  Or you might want to tweak them a bit to match the following:


Depth 8.7

B Gain 96dB

Freq  6.5 MHz

PWR  94%

PTN  2


PER  5

SMO  3

ENH  0  (though worth testing out 3 for this)

B GSC  4  (another setting worth experimenting with)

DYN  108dB

Width  64mm

LD  Auto


And here is how you adjust these . . .

1.) You change your Frequency setting by toggling the Freq switch up or down.

2.) You change your Depth setting by toggling the Depth switch up and down.

3.) You zoom in and out with the Zoom switch up and down.

(Note:  Don’t mess with M Speed or Chroma.  Though if you screen looks a funny color, toggle Chroma until it’s black and white again.)

4.) Your B dial is your B-Mode (basic mode) Gain dial.  So turning the B dial changes the Gain value (think of it as your overall volume).  You wan this pretty high and then from there you will use those sliders on the right to adjust how much gain is selectively going to each part of the image.  Start with them all straight down the middle.  Then slide them to the right to brighten part of the image or to the left to darken part of an image.  The top slider controls the top of the screen (very shallow) all the way down to the bottom slider controlling the bottom part of the screen.  Dialing in these sliders is a BIG part of getting a sharp image.

(Note: If you accidentally press the B dial, you’ll find yourself in split-screen mode.  Press it again and you’re in quad-screen mode.  Press it again and it should take you back to the normal single screen you want to work in.)

(Note: Don’t mess with M mode.  That’s Motion mode.  If you ever see a weird separate graph or something along the bottom of the screen, with something moving across it, you’re accidentally in M mode.  Just press the B dial to switch back to B mode.)

5.) The Focus button changes how many focus pointers are displayed on the screen.  Press Focus several times until you have two pointers displayed.  Then use the trackball to scroll up and down to point them at the part of the screen where the follicle is located.

6.) For the other settings over on the left, I believe you press the Value dial.  (Push it like a button.)  Then you use the trackball to scroll down to pick the setting you want to adjust.  Then turn the Value dial to change it to what you want.  Use the trackball to select another setting if you like, and the Value dial to change the setting.  When you’re done, press the Value dial again like a button to exit.


Remember to review the work flow in the CTS-5500V section of this site and practice the steps several times (even a dozen times) before going out to work with any of your horses or cows.  Master that work flow and you’ll learn to be comfortable using ultrasound much much much faster.



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