Displacement of the large colon in a horse with enterolithiasis due to changed positions observed by computed tomography.
Abstract: Computed tomography (CT) was performed for an 18-year-old female pony with enterolithiasis in the prone and supine positions. CT images from the prone position revealed displacement of the large dorsal colon, which contained an enterolith to the ventral side of the abdomen, and those from the supine position revealed displacement to the dorsal side. A high-density material suggestive of a metallic foreign body was also observed in the enterolith core. An enterolith (422 g, 104 mm) was surgically removed from the large dorsal colon. This caused no complications after surgery and increased the horse's weight. Changing positions during CT helps identify the exact location of enterolith and intestinal displacement due to enterolith weight, as well as size and number.
Publication Date: 2018-03-23 PubMed ID: 29593443PubMed Central: PMC5865064DOI: 10.1294/jes.29.9Google Scholar: Lookup
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- Journal Article
Summary
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The research is about the use of computed tomography to detect the displacement of a horse’s large colon due to enterolithiasis, and how changing the animal’s position during the scan can provide more precise information.
Objective of the Study
- The primary objective of this study was to use computed tomography (CT) to detect and assess enterolithiasis – a condition where a stone (enterolith) forms in the large intestine of a horse – and observe the displacement of the abdomen due to the weight of the enterolith.
Methodology
- The study involved an 18-year-old female pony that was diagnosed with enterolithiasis.
- CT scans were carried out when the horse was in the prone and supine positions.
- By comparing the images from different positions, the researchers were able to deduce the size of the enterolith, the extent of the displacement of the large dorsal colon, and the number of enteroliths.
Findings
- From the prone position, it was noticed that the large dorsal colon, which contained the enterolith, had been displaced to the ventral side of the abdomen.
- Imaging in a supine position showed the colon displaced to the dorsal side of the horse’s abdomen, indicating that the position of the horse during scanning influences the observed placement of the intestine and enterolith.
- A dense material suggestive of a metallic foreign body was observed in the center of the enterolith.
- The enterolith, which was 104mm wide and weight 422g, was surgically removed from the large dorsal colon, resulting in an increase in the weight of the horse and no complications post-surgery.
Conclusion
- The research concluded that using different positions during CT scans can help identify the exact location of the enterolith and the extent of the displacement of the intestine due to the weight of the enterolith.
- It highlights the importance of flexible imaging methods in diagnosing enterolithiasis and planning successful treatments.
Cite This Article
APA
Nakamae Y, Ishihara A, Itoh M, Yanagawa M, Sasaki N, Yamada K.
(2018).
Displacement of the large colon in a horse with enterolithiasis due to changed positions observed by computed tomography.
J Equine Sci, 29(1), 9-13.
https://doi.org/10.1294/jes.29.9 Publication
Researcher Affiliations
- Azabu University, Kanagawa 252-5201, Japan.
- Azabu University, Kanagawa 252-5201, Japan.
- Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
- Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
- Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
- Azabu University, Kanagawa 252-5201, Japan.
References
This article includes 10 references
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Citations
This article has been cited 3 times.- Steward SK, McKee HM, Watson AM, Salman MD, Hassel DM. Transcutaneous Detection of Intramural Microchips for Tracking the Migration of the Equine Large Colon: A Pilot Study.. Animals (Basel) 2022 Dec 5;12(23).
- Egger J, Wild D, Weber M, Bedoya CAR, Karner F, Prutsch A, Schmied M, Dionysio C, Krobath D, Jin Y, Gsaxner C, Li J, Pepe A. Studierfenster: an Open Science Cloud-Based Medical Imaging Analysis Platform.. J Digit Imaging 2022 Apr;35(2):340-355.
- Kim SW, Yuen AHL, Poon CTC, Hwang JO, Lee CJ, Oh MK, Kim KT, Kim HJ, Giri SS, Kim SG, Kwon J, Lee SB, Choi MC, Park SC. Cross-sectional anatomy, computed tomography, and magnetic resonance imaging of the banded houndshark (Triakis scyllium).. Sci Rep 2021 Jan 13;11(1):1165.
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