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Choi M Seo M Jung J Lee K Yoon J Chang D Park RD 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2002,64(1):17-21
For the evaluation of canine gastric motility with ultrasonography, contraction number of pyloric antrum and gastric emptying time (GET) by area and volume method developed by Bolondi et al.'s method were studied in 14 dogs. All experimental dogs were administered with saline and soup solution (10 ml/kg, B.W.). The mean values of contraction number of pyloric antrum in saline and soup group were 4.19 +/- 1.30/min and 4.82 +/- 0.65/min before feeding, and overall mean values were 4.66 +/- 1.37/min and 5.13 +/- 1.71/min, respectively. The mean values of the GET by area and volume method were 36.73 +/- 11.27, 40.00 +/- 8.87 min in saline group and 61.35 +/- 17.58, 59.11 +/- 14.46 min in soup group. In the GET in saline and soup groups, there was no significant difference between the area and volume method (p>0.05). Therefore, Bolondi et al.'s method by ultrasound can be used to evaluate the antropyloric motility and gastric emptying time with area and volume methods. The area method is easier to determine the GET than the volume method, but the latter is more accurate. 相似文献
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Joohyun Jung DVM MS Mincheol Choi DVM PHD Jinhwa Chang DVM Sungjoon Won DVM Woqjo Chung DVM Hojung Choi DVM MS Kichang Lee DVM MS Junghee Yoon DVM PHD Hyunkwon Ha MD PHD 《Veterinary radiology & ultrasound》2003,44(6):642-645
This study was performed to evaluate and optimize a small bowel contrast technique using barium and methylcellulose in dogs. Ten healthy dogs underwent both a conventional upper gastrointestinal study that used only barium and a modified study that used barium and methylcellulose. The control group received 10 mL/kg of 40% barium suspension. Experimental groups were divided into three subgroups given 15 mL/kg of different viscosities (low, moderate, and high viscosity) of 0.5% methylcellulose after 4 mL/kg of 40% barium suspension. Compared with the control group, dogs receiving methylcellulose had higher-quality upper gastrointestinal studies. Moderate viscosity of methylcellulose was superior to the other methylcellulose groups. In conclusion, the use of methylcellulose is a simple and effective method for improving the image quality in an upper GI examination. 相似文献
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Jinhwa Chang Joohyun Jung Hyeyeon Lee Dongwoo Chang Junghee Yoon Mincheol Choi 《Journal of veterinary science (Suw?n-si, Korea)》2011,12(1):91-94
Computed tomography (CT) exams were conducted to determine the distribution of abdominal fat identified based on the CT number measured in Hounsfield Units (HU) and to measure the volume of the abdominal visceral and subcutaneous fat in minipigs. The relationship between the CT-based fat volumes of several vertebral levels and the entire abdomen and anthropometric data including the sagittal abdominal diameter and waist circumference were evaluated. Moreover, the total fat volumes at the T11, T13, L3, and L5 levels were compared with the total fat volume of the entire abdomen to define the landmark of abdominal fat distribution. Using a single-detector CT, six 6-month-old male minipigs were scanned under general anesthesia. Three radiologists then assessed the HU value of visceral and subcutaneous abdominal fat by drawing the region of interest manually at the T11, T13, L1, L3, and L5 levels. The CT number and abdominal fat determined in this way by the three radiologists was found to be correlated (intra-class coefficient = 0.9). The overall HU ranges for the visceral and subcutaneous fat depots were -147.47 to -83.46 and -131.62 to -90.97, respectively. The total fat volume of the entire abdomen was highly correlated with the volume of abdominal fat at the T13 level (r = 0.97, p < 0.0001). These findings demonstrate that the volume of abdominal adipose tissue measured at the T13 level using CT is a strong and reliable predictor of total abdominal adipose volume. 相似文献
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Joohyun Jung Jinhwa Chang Sunkyoung Oh Mincheol Choi 《Journal of veterinary science (Suw?n-si, Korea)》2010,11(2):155-159
Spectral waveform analysis of blood flow velocity in the major arteries of six healthy, conscious immature micropigs was determined using Doppler ultrasonography. Doppler spectral tracings were recorded from the external iliac artery, femoral artery, and renal arcuate artery. Tracings were also taken from three parts of the common carotid artery and two parts of the abdominal aorta. Spectral Doppler parameters included peak systolic velocity, early diastolic velocity, peak systolic velocity-to-end diastolic velocity ratio, resistive index, and pulsatility index. In addition, the diameter of major arteries and indirect blood pressure were measured. These results from spectral Doppler analysis in major arteries may be useful as reference ranges in the future studies of vascular hemodynamics in immature micropigs. 相似文献
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Yucheol Jeong Changyun Lim Sunkyoung Oh Joohyun Jung Jinhwa Chang Junghee Yoon Mincheol Choi 《Journal of veterinary science (Suw?n-si, Korea)》2008,9(4):407-413
Eight Beagle dogs were anesthetized and were imaged using a single channel helical CT scanner. The contrast medium used in this study was iohexol (300 mg I/ml) and doses were 0.5 ml/kg for a cine scan, 3 ml/kg for an enhanced scan. The flow rate for contrast material administration was 2 ml/sec for all scans. This study was divided into three steps, with unenhanced, cine and enhanced scans. The enhanced scan was subdivided into the arterial phase and the venous phase. All of the enhanced scans were reconstructed in 1 mm intervals and the scans were interpreted by the use of reformatted images, a cross sectional histogram, maximum intensity projection and shaded surface display. For the cine scans, optimal times were a 9-sec delay time post IV injection in the arterial phase, and an 18-sec delay time post IV injection in the venous phase. A nine-sec delay time was acceptable for the imaging of the canine hepatic arteries by CT angiography. After completion of arterial phase scanning, venous structures of the liver were well visualized as seen on the venous phase. 相似文献
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Mihyun CHOI Namsoon LEE Seoyeon KEH Heeyeon CHOI Yoonji YIM Hyunwook KIM Joohyun JUNG Mincheol CHOI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(2):229-231
A 3-year-old, intact female Pomeranian presented with a 1-month history of coughing. Thoracic radiography showed focal infiltration of the left cranial lung lobe and widening of the cranial mediastinum. Subsequent computed tomography revealed torsion of the caudal segment of the left cranial lung lobe, which was confirmed by exploratory thoracotomy. There was no apparent underlying etiology for the condition. To the authors’ knowledge, this is the first report of lung lobe torsion in this breed and the first detailed CT imaging report for segmental lung lobe torsion. 相似文献
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Joohyun JUNG Mincheol CHOI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(4):499-502
A one-year-old, castrated male domestic short hair cat was admitted with a history of
anorexia, regurgitation and pyrexia for two days. Fever and leukocytosis were identified.
There were a large soft tissue density oval mass in the caudal mediastinum on thoracic
radiographs, a fluid-filled oval mass in the caudal mediastinum on ultrasonography, and
left-sided and ventrally displaced and compressed esophagus on esophagram. On esophageal
endoscopy, there were no esophageal abnormalities. CT findings with a fluid filled mass
with rim enhancement indicated a caudal mediastinal paraesophageal abscess. The patient
was treated with oral antibiotics, because the owner declined percutaneous drainage and
surgery. The patient was admitted on emergency with severe respiratory distress; and
ruptured abscess and deteriorated pleuropneumonia were suspected. With intensive
hospitalization care and additional antibiotic therapy, the patient had full recovery. 相似文献