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Computed tomography (CT) scan findings in calves with hydranencephaly | ||
| Iranian Journal of Veterinary Research | ||
| دوره 22، شماره 2 - شماره پیاپی 75، 2021، صفحه 107-112 اصل مقاله (747.07 K) | ||
| نوع مقاله: Full paper (Original article) | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2021.37031.5403 | ||
| نویسندگان | ||
| A. Raoofi1؛ M. Gorjidooz* 2؛ P. Dehghan Rahimabadi1؛ M. Masoudifard1؛ S. H. Mardjanmehr3؛ M. R. Esmailinejad1 | ||
| 1Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| 2Department of Clinical Sciences, Faculty of Veterinary Medicine, Garmsar Branch, Islamic Azad University, Garmsar, Iran | ||
| 3Department of Pathology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| Background: Hydranencephaly is the unilateral or bilateral loss of cerebral hemispheres and their replacement by a cerebrospinal fluid-filled sac that is caused by some teratogenic viruses. This disorder can be recognized before death occurs, using computed tomography (CT) scan. Pathological findings are also useful for the confirmation of the diagnosis. Aims: The aim of this study was to determine features of hydranencephaly in calves by CT. Methods: In this study, CT images were obtained from the skulls of 7 same-age calves with neurological signs, affected by Akabane virus, after slaughter. To compare the Hounsfield unit (HU) obtained from each brain region with the normal one, a normal calf’s (with the same age) CT images were considered. Then, HU was measured in different parts of the affected calves’ brain and compared with the normal calf’s brain. Results: Computed tomography images of affected calves indicated a hypoattenuated density of cerebral hemispheres, and the mean value of HU significantly decreased in these parts of the brain compared to normal calves (P=0.0001). There was no statistically significant difference between the mean value of the brain stem HU of the affected calves and the normal ones (P=0.066). In the gross pathology, asymmetric fluid-filled sacs that replaced cerebral hemispheres were observed, but the brain stems were intact in all cases. Conclusion: The results showed a strong correlation between CT scan and pathology findings in calves with hydranencephaly. This is the first CT scan-mediated study of calves with hydranencephaly. | ||
| کلیدواژهها | ||
| Calf؛ CT scan؛ Hounsfield unit؛ Hydranencephaly | ||
| مراجع | ||
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Agerholm, JS; Hewicker-Trautwein, M; Peperkamp, K and Windsor, PA (2015). Virus induced congenital malformations in cattle. Acta Vet. Scand., 57: 54-67.
Allen, JR; Barbee, DD; Boulton, CR; Major, MD; Crisman, MV and Murnane, RD (1987). Brain abscess in a horse: Diagnosis by computed tomography and successful surgical treatment. Equine Vet. J., 19: 552-555.
Baiker, K; Saunders, N; Summers, BA; Piercy, RJ and Smith, K (2010). Hydranencephaly in a foal. Equine Vet. Educ., 22: 593-598.
Barnard, BJ and Pienaar, JG (1976). Bluetongue virus as a cause of hydranencephaly in cattle. Onderstepoort. J. Vet. Res., 43: 155-157.
Boris, P; Bundgaard, F and Olsen, A (1987). The CT (Hounsfield unit) number of brain tissue in healthy infants. Childs Nerv. Syst., 3: 175-177.
Cabrera, L; Arencibia, A; Rizkallal, C; Blanco, D; Farray, D; Díaz-Bertrana, ML; Carrascosa, C and Jaber, JR (2015). Computed tomographic imaging of the brain of normal neonatal foals. Arch. Med. Vet., 47: 209-214.
Cierniak, R (2011). Some words about the history of computed tomography, in: X-ray computed tomography in biomedical engineering. UK, Springer. PP: 7-18.
Constable, PD; Hinchcliff, KW; Done, SH and Gruenberg, W (2017). Diseases of the nervous system. In: Veterinary medicine: a textbook of the diseases of cattle, horses, sheep, pigs and goats. (11th Edn.), Missouri, Elsevier. PP: 1176.
Cordy, DR and Shultz, G (1961). Congenital subcortical encephalopathies in lambs. J. Neuropathol. Exp. Neurol., 20: 554-562.
Dixon, A (1988). Hydranencephaly. Radiography. 54: 12-13.
El-khodery, S; Yamada, K; Aoki, D; Kamio, K; Kishimoto, M; Shimizu, J; Kobayashi, Y; Ishii, M; Inokuma, H; Yamauchi, S and Matsui, T (2008). Brain abscess in a Japanese black calf: utility of computed tomography (CT). Vet. Med. Sci., 70: 727-730.
Fletcher, TF and Weber, AF (2009). Veterinary developmental anatomy. Veterinary anatomy. Minnesota, http://vanat.cvm.umn.edu/vanatpdf/EmbryoLectNotes.pdf. PP: 15-16.
Gerro, TC; Mattoo, JS and Snyder, SP (1998). Use of computed tomography in the diagnosis of a cerebral abscess in a goat. Vet. Radiol. Ultrasound., 39: 322-324.
Greene, CE; Gorgasz, EJ and Martin, CL (1982). Hydranencephaly associated with feline panleukopenia. J. Am. Vet. Med. Ass., 180: 767-768.
Khalid, M; Khalid, S; Zaheer, S; Redhu, N and Ekramullah, M (2012). Hydranencephaly: a rare cause of an enlarging head size in an infant. North. Am. J. Med. Sci., 4: 520-522.
Kirkland, PH (2015). Akabane virus infection. Rev. Sci. Tech. Off Int. Epiz., 34: 403-410.
Lee, K; Ishimoto, M; Shimizu, J; Kobayashi, Y; Matsumoto, K; Sasaki, N; Ishii, M; Inokuma, H; Iwasaki, T; Miyake, Y and Yamada, K (2011). Use of contrast-enhanced CT in the diagnosis of abscesses in cattle. Vet. Med. Sci., 73: 113-115.
Lee, K; Yamada, K; Tsuneda, R; Kishimoto, M; Shimizu, J; Kobayashi, Y; Furuoka, H; Matsui, T; Sasaki, N; Ishii, M; Inokuma, H; Iwasaki, T and Miyake, Y (2009). Clinical experience of using multidetector-row CT for the diagnosis of disorders in cattle. Vet. Record., 165: 559-562.
Maxie, MG (2016). Nervous system. In: Maxie, MG (Ed.), Jubb, Kennedy and Palmar’s pathology of domestic animals. (5th Edn.), Missouri, Elsevier. PP: 272-274.
Mayhew, J (2008). Large animal neurology. 2nd Edn., UK, Blackwell Publishing Inc., PP: 20-45.
Mohamed, T; Al-Sobayil, F; Kurwasawa, T; Nakade, T and Floeck, M (2011). Computed tomographic findings in a calf with actinomycosis: a case report. Vet. Med-Czech., 56: 255-259.
Morrow, KL; Park, RD; Spurgeon, TL; Stashak, TS and Arceneaux, B (2000). Computed tomographic imaging of the equine head. Vet. Radiol. Ultrasound., 41: 491-497.
Nietfeld, JC (2012). Neuropathology and diagnostics in food animals. Vet. Clin. Food. Anim., 28: 515-534.
Obri, A; Khrimian, L; Karsenty, G and Oury, F (2018). Osteocalcin in the brain: from embryonic development to age-related decline in cognition. Nat. Rev. Endocrinol., 14: 174-182.
Ohlerth, S and Scharf, G (2007). Computed tomography in small animals-basic principles and state of the art applications. Vet. J., 173: 254-271.
Osburn, BI; Silverstein, AM; Prendergast, RA; Johnson, RT and Parshall, CJ (1971). Experimental viral-induced congenital encephalopathies. Pathology of hydranen-cephaly and porencephaly caused by bluetongue vaccine virus. Lab. Invest., 25: 197-205.
Sharp, NJ; Davis, BJ; Guy, JS; Cullen, JM; Steingold, SF and Kornegay, JN (1999). Hydranencephaly and cerebellar hypoplasia in two kittens attributed to intrauterine parvovirus infection. J. Comp. Pathol., 121: 39-53.
Tharwat, M; Selim, L; Nakade, T and Oikawa, Sh (2014). Computed tomographic findings in calves with head affections. Global. Veterinaria (GV). 12: 687-691.
Thomas, WB (1999). Nonneoplastic disorders of the brain. Clin. Tech. Small Anim. Pract., 14: 125-147.
Upadhyay, J; Farr, OM and Mantzoros, CS (2015). The role of leptin in regulating bone metabolism. Metabolism. 64: 105-113.
Washburn, KE and Streeter, RN (2004). Congenital defects of the ruminant nervous system. Vet. Clin. Food. Anim., 20: 413-434. | ||
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