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WSVA8-0033
DIAGNOSTIC IMAGING
TRANSTHORACIC ULTRASOUND ELASTOGRAPHY IN SUBPLEURAL PULMONARY LESIONS: A PRELIMINARY STUDY IN CADAVER MODELS
H.C. Lee1, T. Hwang1, H. Choi2, Y. Yoon1
1Gyeongsang National University, Department of Veterinary Medical Imaging- College of Veterinary Medicnie, Jinju, Republic of Korea
2Chungnam National University, Department of VeterinaryMedical Imaging- College of Veterinary Medicine, Daejeon, Republic of Korea
INTRODUCTION
Elastography is currently used in various organs including the thyroid, breast, liver, prostate and lymph nodes. Nonetheless, few studies have investigated the application of ultrasound elastography in lungs in human and it is not yet applied in dogs.
OBJECTIVES
The purpose of this study was to investigate the feasibility and application of transthoracic ultrasound elastography in pulmonary lesions in dogs.
METHODS
Thirteen cadavers were prospectively obtained
from dogs scheduled to undergo euthanasia. A radiofrequency (RF) ablation was utilized to create thermal lesions in cadaver lung. Before and after RF ablation, strain ratios were obtained. The strain index, defined as the muscle to lesion strain ratio (B/A ratio), was calculated automatically by the software program in the ultrasound unit.
RESULTS
The average strain values of dogs with latissimus dorsi muscle(LDM), intercostal muscle (ICM), and pulmonary lesion were 1.80 ± 0.17, 0.52 ± 0.1, and 0.43 ± 0.09, respectively, whereas the strain value of the lung
was 0.01 ± 0.001. There were statistically significant differences in tissue hardness. The strain ratio of LDM/ lung was significantly different from that of LDM/lesion (180.27 ± 16.83 vs. 4.17 ± 0.94, p < 0.001). The strain ratio of ICM/lung was significantly different from that of ICM/ lesion (51.88 ± 9.52 vs. 1.15 ± 0.25, p < 0.001).
CONCLUSIONS
The elasticity of lung tissue affected by RF ablation and normal lung is quantitatively reflected by strain ratio obtained with ultrasound. This study provides basic information for strain values and strain ratios for the pulmonary lesion in dogs.
Your Singapore, the Tropical Garden City
WSVA8-0133
DIAGNOSTIC IMAGING
RADIOGRAPHIC ASSESSMENT AND TREATMENT OF PERIODONTAL DISEASE IN A YORKSHIRE TERRIER DOG
M.F. Hafizhuddin1, S. Zaenab2, D. Noviana1
1Bogor Agricultural University, Faculty of Veterinary Medicine, Bogor, Indonesia
2My Vets Animal Clinic, My Vets Animal Clinic, Jakarta, Indonesia
INTRODUCTION
Periodontal disease is a threatening for dog’s life. It can be treated by applying certain surgery technique along with radiography diagnostic assistance.
OBJECTIVES
This case study is aimed to understand the radiographic changes and periodontal disease treatment that was occured in a Yorkshire Terrier dog.
METHODS
As a first step, periodontal disease treatment was done by physical examination of the dog’s teeth condition which then recorded into the teeth diagram. The radiography was perfomed by using parallel technique to premolar and molar mandibula teeth of the dog.
RESULTS
As a result, the image has shown some decrease in density of the area around molar number 308 whose plaque index, gingivitis, and furcation higher than number 306 that has lower index. Besides that, there is 0.3 mm depth sulcus gingiva in tooth number 308. Dog’s teeth extraction was applied to all incisor mandibula teeth.
CONCLUSIONS
The case study showed that radiography can be used as diagnostic tool in periodontal disease treatment. Teeth mobility is also a factor when determining which teeth to extract instead of plaque, gingivitis, and furcation index.
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