Blog


23
Jun 2018
Used ultrasound machines

From the 23rd of June 2018, audio will now be available for all of our longer posts. Text/transcription will be displayed below the audio file.   The pitfalls of buying privately sold used ultrasound equipment I’ve just finished speaking to a lady who, back in February, bought a used MSU from somebody for £650. Unsurprisingly, she hasn’t got on well with it. The MSU is a great little machine but, as I’m sure any MSU user will tell you, it takes work. It takes longer to “get your eye in” than with......

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22
Jun 2018
Animal Ultrasound Association logo

Animal Ultrasound Association (AUA) membership is currently open to people with measurable, verifiable training and experience. In the UK and USA, this currently means individuals who have completed training with Vet Image Solutions (VIS), and in Canada, with PetTech Solutions. Why the AUA accredits VIS-trained individuals in the United Kingdom A typical individual’s ultrasound training journey with VIS begins with a level 1 day course, led by a fully accredited sonographer. A sonographer is somebody who holds a masters degree or equivalent in diagnostic ultrasound, and an accredited sonographer is somebody who keeps......

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19
Jun 2018
Kid at Newholme Farm

Last weekend, I traveled around England scanning goats. Despite having a large number of goat breeders in our farm animal scanning Facebook group, I’d never had much hands-on experience myself, as the vast majority of our goat breeder group members are in the USA. Ultrasound scanning to confirm pregnancy in goats is very popular in the States, even on small farms. I believe the greater distances between the farms and their local scanner or veterinarian is a major contributing factor, but also, goat breeding just seems to be a lot bigger – and perhaps......

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06
May 2018

Mid and high end veterinary ultrasound machines invariably come with Colour Doppler and Pulsed Wave (PW) Doppler. They frequently come with Continuous Wave Doppler capability as well, although this is usually only active on phased array probes. Here, we look at the main differences between pulsed and continuous wave dopplers, as well as their different and complimentary uses.   Pulsed Wave Doppler: When you enter into Pulsed Wave (PW) mode, you will be able to move the sampling area (usually a square or rectangular box along a single line) over the region you......

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10
Mar 2018
Scan lines from interference

The main components of an ultrasound probe are all encased within its physical housing. As well as being shaped into a tool that you can comfortably hold in your hand, the physical housing also acts as an insulator against electrical and acoustic interference. Lower quality transducers using cheaper, thinner insulation, are therefore more prone to interference. This is not to say that high-end transducers do not suffer from interference. The most expensive £30,000 GE 3D/4D probe and the Scan Pad’s £1000 microconvex probe are all high-quality equipment in their own right, yet......

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06
Mar 2018

Choosing your first ultrasound machine can be quite overwhelming. There is now so much choice, with prices ranging from hundreds through to thousands of pounds, all claiming to offer the best possible solution for your needs at the best price. This short presentation goes through a few examples to help demystify choosing your first ultrasound machine. So, what is an ultrasound machine? The machine itself is simply a computer. It will have features such as processing speed, memory, screen and display size, and it may or may not also have a well......

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03
Feb 2018

‘Dynamic range’ is a control on professional ultrasound machines and refers to the range in amplitude (strength) between the strongest and weakest echoes detected by the transducer. The dynamic range of an ultrasound transducer needs to be wide (typically 60dB) in order to detect both very strong, specular reflections from tissue interfaces, and very weak, scattered reflections from the texture within tissue. The dynamic range of a monitor – the range of amplitudes it is capable of displaying to the ultrasound technician – however, is much smaller (typically 20dB). For all of the received information......

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31
Dec 2017

Ultrasound currently enjoys an impeccable safety record, but it’s worth remembering that this is due to the responsible practices of professionals over the many years of the technology’s development. The current situation whereby untrained individuals can now purchase relatively low cost ultrasound equipment is historically unprecedented, and whilst it offers the potential of fantastic benefits for animal care in the right hands – as many of our own members regularly demonstrate – it’s important not to be complacent about its potential for harm. Ultrasound equipment, by law within the UK, EU and North America,......

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24
Dec 2017
Cotyledons on ultrasound

The uterus is comprised of three main layers – the perimetrium, myometrium and endometrium. The perimetrium is a thin membrane which secretes lubricating fluids. The myometrium consists of smooth muscle which facilitates contractions, which are necessary to aid the passage of sperm and also for parturition (giving birth). When oestrogen is high and progesterone is low, the myometrium is firm and in animals which can be palpated (mainly the cow and mare rectally), this can be felt and is one indicator of oestrus. Under the influence of progesterone, the myometrium in most......

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31
Oct 2017

The Animal Ultrasound Association was established to improve the standard of ultrasound imaging for animals in the United Kingdom and, eventually, beyond. This was largely in response to the experiences of canine scanners who adopted ultrasound technology several years ago in England, Wales and Scotland in order to scan their own animals and offer a service for others. For these people, learning how to scan well and safely was essential: there were few alternatives. Many didn’t even have access to a veterinarian who owned a scanner, or at least not one with......

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