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Peer-reviewed veterinary case report

Dog mammary tumor diagnosis improved with ARFI elastography

By Feliciano, M A R et al.·Published in The Journal of small animal practice·2014·Department of Animal Reproduction, Brazil·View original on PubMed

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Original publication title: ARFI elastography as a complementary diagnostic method for mammary neoplasia in female dogs - preliminary results.

Species:
dog

Plain-English summary

A group of 50 female dogs with mammary tumors underwent testing to see if a new imaging method called acoustic radiation force impulse elastography could help tell the difference between benign (non-cancerous) and malignant (cancerous) tumors. Traditional ultrasound didn't effectively separate the two types, but the new method showed promise. It found that malignant tumors had a higher shear velocity (3.33 m/s) compared to benign ones (1.28 m/s), suggesting it could be a useful tool for veterinarians in diagnosing mammary neoplasia. This could lead to better treatment decisions for dogs with these tumors.

People also search for: dog mammary tumor diagnosis · how to tell if a dog has cancer · mammary neoplasia in dogs treatment

Abstract

OBJECTIVES: To evaluate the applicability of acoustic radiation force impulse elastography as a complementary method in diagnosing mammary neoplasia in dogs. METHODS: Mammary tumours from 50 female dogs were evaluated and divided into two groups: G1 (benign tissue) and G2 (malignant tumours). The nodules were assessed by B-Mode ultrasonography, qualitative and quantitative acoustic radiation force impulse elastography and histopathology. RESULTS: B-Mode ultrasound examination was ineffective at separating the tumours into the two groups. Likewise, there was no correlation between the grayscale images of the mammary tissue by qualitative elastography. A difference was found in the deformity of the mammary masses between the malignant and benign groups (P&#x2009;=&#x2009;0&#x2009;&#xb7;&#x2009;002). Using quantitative elastography, the mean values of shear velocity were 3&#x2009;&#xb7;&#x2009;33&#x2009;m/s for malignant tumours and 1&#x2009;&#xb7;&#x2009;28&#x2009;m/s for benign tissue (P&#x2009;<&#x2009;0&#x2009;&#xb7;&#x2009;0001). CLINICAL SIGNIFICANCE: The use of acoustic radiation force impulse elastography may help to differentiate between malignant and benign mammary neoplasms.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25132077/