CT Scanning in Identification of Sheep Cystic Echinococcosis

Abstract

Objective We aim to determine the efficiency of CT in identification of cystic echinococcosis in sheep. Methods Fifty-three sheep with liver cysts confirmed by ultrasonography were subject to CT scan to evaluate the number, size, and type of the cysts in liver and lung, confirmed using necropsy. The correlation of numbers between liver cysts and lung cysts was calculated using Pearson analysis. Results Necropsy indicated a 98% consensus on size, location, number, and activity compared with CT scan. The viable cysts were 53.1% and 50.6% in the liver and lung, respectively. Among the cysts in liver, 35.5%, 9.5%, 5.7%, 10.2%, and 39.1% were Types CE1, CE2, CE3, CE4, and CE5, respectively. The cysts in the lungs, 17.4%, 26.9%, 12.1%, 11.6%, and 32.1%, were Types CE1, CE2, CE3, CE4, and CE5, respectively. A significant correlation was noticed between the number of cysts in liver and those in lung (R = 0.770, P < 0.001). Conclusions CT scan is a suitable tool in determining the size and type of cystic hydatid cysts in both liver and lung of sheep. A significant correlation was noticed between the numbers in liver and lung, indicating that lung infection was likely due to the expansion of liver cyst burden pressure.

Rapid and accurate screening of cystic echinococcosis in sheep based on serum Fourier‐transform infrared spectroscopy combined with machine learning algorithms

“…Besides the sensitivity, specificity, and accuracy of PCA‐SVM methods showed that these indexes were better than some commonly used methods for diagnosing CE in sheep, for instance, B‐ultrasound (sensitivity 75%–88%, specificity 70%–76%) [53], and ELISA detection (sensitivity 55%–60%, specificity 67%–70%) [54]. There were some drawbacks in the B‐ultrasound detection technology, such as the need to trim the sheep wool, the difficulty in operation, the need for expensive imaging equipment, and professional imaging physicians [55]. Serological testing was difficult to standardize and has low sensitivity and specificity [54].…”

Therapeutic effect of curcumin nanoemulsion on cystic echinococcosis in BALB/c mice: a computerized tomography (CT) scan and histopathologic study evaluation

“…Mao et al in 2017 determined the efficiency of CT scan modality in the identification of CE in sheep. The results indicated that CT is a suitable tool for determining the size and type of CE cysts in the liver and lungs of sheep [ 66 ]. The utilization of CT scans for detecting and characterizing CE cysts is very limited to humans and sheep.…”

Imaging techniques in veterinary medicine. Part II: Computed tomography, magnetic resonance imaging, nuclear medicine

“…In small animals, except for the CNS, CT usually represents a second level modality for studying the skeleton, particularly the axial one (skull and spine), the thorax and the abdomen [3] . The use of CT is also described for equine [19] , cattle [20] , goat [21] , sheep [22] , swine [23] , avian and chelonian [11] , reptiles [24] , rabbit and rodents [25] . As in human medicine, CT can be used as bone densitometer [26] .…”