Use of contrast-enhanced ultrasonographic examination to evaluate health status of mammary glands of ewes at the end of a lactation period
| Autor: | I.G. Petridis, Vasiliki S Mavrogianni, K.S. Ioannidi, Mariana S. Barbagianni, Dimitrios A Gougoulis, George Mantziaras, Natalia G. C. Vasileiou, George C. Fthenakis |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Period (gene) media_common.quotation_subject Mammary gland Sulfur Hexafluoride Physiology Contrast Media Sheep Diseases Mastitis Ultrasonographic examination 03 medical and health sciences Mammary Glands Animal Lactation Medicine Contrast (vision) Animals media_common Ultrasonography Sheep business.industry 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine medicine.disease 040201 dairy & animal science 030104 developmental biology medicine.anatomical_structure Microbubbles Animal Science and Zoology Female business Mechanical index Food Science |
| Zdroj: | The Journal of dairy research. 85(1) |
| ISSN: | 1469-7629 |
| Popis: | This research communication describes the use of contrast-enhanced ultrasonographic examination (CEUS) in mammary glands of ewes for diagnosis of chronic mastitis; this is the first report of the use of this modality in diagnostic imaging of mammary glands of ruminants. For this purpose, a convex transducer was used, with the following settings: frequency: 2·0/4·0 MHz, mechanical index: 0·09, power: 22 dB, scanning depth: 70 mm, and sulphur hexafluoride in microbubbles at a dose of 20 µl as the contrast agent. In four healthy mammary glands (2 ewes), CEUS examination revealed a steady biphasic pattern of contrast agent kinetics characterised by initial uptake within 15–40 s post-injection, at which time intensity peaked with strong enhancement (130–200 AEU) followed by a gradual wash-out phase. In three mammary glands with history of clinical mastitis (2 ewes), the pattern was particularly inconsistent and unclear, with weak enhancement (P < 0·01) lasting for a short period. Notwithstanding issues regarding cost and withdrawal period of contrast-agent, this imaging modality may contribute to improved diagnosis of mastitis cases, especially on occasions when abnormalities cannot be easily confirmed by more conventional methods. |
| Databáze: | OpenAIRE |
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