Evaluation of gastrointestinal activity patterns in healthy horses using B mode and Doppler ultrasonography
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Evaluation of gastrointestinal activity patterns in healthy horses using B mode and Doppler ultrasonography
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2005
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Canadian Veterinary Journal
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Article
Abstract
Healthy adult horses were examined by using transabdominal ultrasonography to quantitatively
and qualitatively evaluate activity of the jejunum, cecum, and colon with B mode and Doppler
techniques. Doppler ultrasound was used to assess jejunal peristaltic activity. Examinations were
performed on multiple occasions under imposed colic evaluation conditions, including fasting, nasogastric
intubation, and xylazine sedation.
In fasted horses, jejunal visibility was increased and jejunal, cecal, and colonic activity was
decreased. The stomach was displaced ventrally and was visualized ventral to the costochondral
junction. Xylazine sedation in fed horses had minimal effects; however, in fasted horses, xylazine
significantly decreased jejunal and cecal activity. Nasogastric intubation in fasted horses had no
observable effects on activity, but moved the stomach dorsally. B mode and Doppler jejunal activity
were strongly correlated. Prior feeding and sedation status need to be considered when interpreting
the results of equine abdominal ultrasound examinations. Doppler techniques may be useful for
assessing jejunal activity.
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Mitchell CF, Malone ED, Sage AM, Niksich K: Evaluation of gastrointestinal activity patterns in healthy horses using B mode and Doppler ultrasonography. Can Vet J 2005; 46:134-140
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Mitchell, Colin F; Malone, Erin D; Sage, Abby M; Niksich, Katie. (2005). Evaluation of gastrointestinal activity patterns in healthy horses using B mode and Doppler ultrasonography. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/200915.
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