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Intra-operative ultrasound: utility in intrahepatic shunt attenuation in dogs

The use of intra-operative ultrasound in canine shunt surgery has been described previously: J Am Vet Med Assoc 2003 Apr 15;222(8):1086-92, 1077Intraoperative ultrasonography of the portal vein during attenuation of intrahepatic portocaval shunts in dogsViktor Szatmári 1, Frederik J van Sluijs, Jan Rothuizen, George Voorhout https://avmajournals.avma.org/view/journals/javma/222/8/javma.2003.222.1086.xml The authors of that study interrogated the main extrahepatic … Continue reading

06/02/2022 Internal medicine, ultrasonography, Uncategorized

Pneumonia in dogs: gastrointestinal presenting signs

With the advent of lung ultrasound and the resulting great leap forward in our ability to diagnose bronchopneumonia relatively easily and with good specificity has opened a door on its true incidence and the spectrum of associated presenting signs. Notably, we now see affected dogs in which gastrointestinal signs are prominent. It’s hard to prove … Continue reading

03/01/2022 cardiology, Internal medicine, ultrasonography, Uncategorized

Sonography of the healthy feline jejuno-ileal junction

This is a very niche observation but something that I’ve not seen described elsewhere.  In cats without any evidence of gastrointestinal disease there is often an asymmetrical thickening of the small intestinal mucosa at the jejuno-ileal junction. This is located between 1.5 – 4.0cm proximal to the ileo-caeco-colic junction. https://www.cabdirect.org/cabdirect/abstract/20123064781 Before I realised that this … Continue reading

14/06/2021 Internal medicine, ultrasonography

Sonographic manifestations of bleeding disorders in dogs: including a case of apparent gastric purpura

It’s been a while since my erstwhile mentor Dr Bob O’Brien published this nice article: Vet Radiol Ultrasound  Jul-Aug 1998;39(4):354-6Urinary bladder mural hemorrhage associated with systemic bleeding disorders in three dogsR T O’Brien, E F Wood https://pubmed.ncbi.nlm.nih.gov/9710141/ …and ultrasound technology has moved on a bit in the meantime. This is a recent case of the … Continue reading

30/03/2021 Internal medicine, ultrasonography, Uncategorized

The significance of bright bits in the pancreas. Ultrasound elastography (USE) in pancreatitis

Ultrasound elastography, or elastosonography, is increasingly available on high-end ultrasound machines;. At the most basic level USE gives an indication of tissue stiffness.  This may be either in response to mechanical pressure (strain imaging) or to ultrasound-generated compression (shear wave elastography).  Mechanical pressure in strain imaging is exerted externally (manually) or by internal changes due … Continue reading

25/11/2020 Internal medicine, ultrasonography, Uncategorized

Sonographic assessment of oesophageal function in dogs

I am starting to think that examination of the neck might be a useful part of the routine sonographic examination for cats and dogs: especially in complex cases.  In addition to those with sepsis, foreign bodies, thyroid disease, lymphadenopathy or salivary gland changes, patients with impaired oesophageal function are sometimes picked up.  Some animals with … Continue reading

11/03/2020 Internal medicine, ultrasonography, Uncategorized

Sand ingestion in three dogs: a cause of severe gastroenteritis (even without impaction)

Sand impaction has been described in a small number of dogs: J Small Anim Pract. 2010 Jan;51(1):29-33Sand impaction of the small intestine in eight dogs.Moles AD1, McGhite A, Schaaf OR, Read R. https://www.ncbi.nlm.nih.gov/pubmed/20137006 In all of those dogs, impaction in the ileum proximal to the ileo-caeco-colic junction was documented and thought to be the principal … Continue reading

09/02/2020 Uncategorized

Gastropathy caused by hypoadrenocorticism in dogs

I guess we know that hypoadrenocorticism (both ‘typical’ and ‘atypical’) is associated with gastrointestinal signs including ulceration.  I’ve not managed to find a completely convincing pathophysiological explanation of the mechanism for this.  However, I just wanted to share a couple of sonographic images of the stomach wall in addisonian dogs. They can be really striking. … Continue reading

12/10/2019 Internal medicine, ultrasonography
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