Blog


11
May 2019

When and where should I get my dog scanned for pregnancy? Getting your dog scanned for pregnancy with ultrasound is very reliable and accurate, provided it is performed: At the right time By a trained, experienced professional With the right equipment Each of these points is discussed in turn below.   The right time: When should I get my dog scanned? The earliest you should book an appointment with a mobile pregnancy scanner is when your dog would be at 30 days gestation. If you have been performing progesterone testing, you may......

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09
May 2019

Tissue Harmonic Imaging is a relatively recent discovery that greatly improves image quality, primarily due to a great reduction in the amount of ultrasound artifacts (see Chapter 14 of Ultrasound for Canine Pregnancy Scanning). Put simply, it involves sending out ultrasound at one frequency, but only using higher returning frequencies (that we didn’t used to know were even generated!) to generate the image. These higher frequencies are created as the ultrasound waves pass through tissue, so are particularly helpful when scanning larger animals – less helpful when scanning shallow structures that are......

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09
May 2019

Dogs and cats with significant mitral regurgitation (MR) may show pulmonary venous flow reversal. Flow reversal is a supporting measure only, and not specific enough to be used as a standalone method of grading MR severity.   Normal pulmonary vein flow pattern The normal flow pattern of the pulmonary veins shows two forward-flowing waves – systolic (S) and diastolic (D). The S wave should be of equal or greater velocity than the D wave. There is also a small reversal wave (Ar) that occurs at the time of atrial contraction. This is present even......

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07
May 2019

An increasing number of AUA members are turning to scanners with Doppler capability as their next ultrasound machine. Primarily, this is due to the higher resolution images they tend to produce (colour Doppler systems use higher spec graphics cards and other components, so even if you never use your colour, you still benefit from improvements in performance), but there are ways you can put your Colour Doppler to good use.     Remember that Doppler imparts higher levels of ultrasonic energy, and should be used sparingly over the foetus itself. Obstetric sonographer......

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30
Apr 2019

Below is a tour from Yvette Lovis around the foetal anatomy. Taken at the canine pregnancy scanning course run in Edinburgh last month, identifying: – Foetal heart – Foetal stomach – Foetal liver – Foetal bladder – Chord insertion – Spine – Head and neck   Yvette also delivers a walk-through on measuring BPD, available to AUA members. Simply sign into your account and view her video here.   With thanks to Kilnhurst Collies...

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23
Apr 2019
Snake echocardiography by Catherine Stowell

Reptilian hearts are generally referred to as more ‘rudimentary’ than mammalian hearts, but they are perfectly adapted for their purpose. In fact, they have their own wonders – such as capabilities for self-healing – which far exceed our own. Unless you reject the theory of evolution*, their hearts give valuable insight into the evolution of human hearts. * If you do happen to reject the theory of evolution and believe that Earth was populated over a short space of time due to the arrival of extra-terrestrial beings, you probably know all about......

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02
Mar 2019

The Animal Ultrasound Association accredits the VIS level 1 and 2 canine pregnancy scanning training courses, and this week, we were in beautiful Worcestershire.     Yvette saved this beautiful kidney image, which a few members of the group wanted a copy of:     Here it is in video format:   There is a poster of the canine female reproductive anatomy, as well as ultrasound images of the typical appearance of kidney, liver, spleen and gestation sacs, made by Yvette. You can get an A3 copy of this poster for your......

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20
Feb 2019

Hi everyone! Last month, a new team member joined us at the Animal Ultrasound Association: Marguerita Alexandrou. She’s here for you every Tuesday, Wednesday and Thursday. She’s been working on boosting the visibility of full members’ profiles online, as well as some awareness-raising work we’ll be doing at the end of the month (photos to follow in a couple of weeks!), starting at the next two VIS ultrasound training courses in Worcestershire and West Lothian. She’s also been working on securing sponsorship for the website, so that we have even more money......

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14
Feb 2019
Short axis cat

Screening for hypertrophic cardiomyopathy (HCM) can currently only be performed by a veterinarian. Yet, with increasing numbers of breeders becoming proficient in the use of reproductive ultrasound, there is a growing interest in expanding their skills to heart scanning. In the world of pregnancy scanning, a number of trained and experienced scanners work closely with their veterinarians. Some scan inside their local practice, and others scan independently, receiving referrals from their veterinarians and referring any concerning cases back in return. Most vets simply don’t have the time for performing detailed pregnancy scans......

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08
Jan 2019

Many AUA members save images and videos for their clients when they perform a pregnancy scan. For those of us who began scanning many years ago, it’s become habit to export the images off your scanner and email them over as attachments. Some people even let the client photograph or record from the ultrasound screen. The problem with both of these methods is that it transfers control and ownership of your work to the client (ok, perhaps not legally, but that’s not what we’re talking about here). They can now forward those images......

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