Page 724 - WSAVA2017
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An Urban Experience
WSVA7-0247 DIAGNOSTIC IMAGING
UTILITY OF DIAGNOSTIC IMAGING IN THE ASSESSMENT OF THE SEVERITY OF HEARTWORM DISEASE IN DOGS
E. Carreton1, Y. Falcon-Cordon1, S. Falcon-Cordon1, B. Serrano-ParreƱo1, J.A. Montoya-Alonso1
1University of Las Palmas de Gran Canaria, Faculty of Veterinary Medicine, Arucas, Spain
Introduction
The adult parasites of Dirofilaria immitis lodge in the pulmonary arteries and right cardiac chambers of the dogs, chronically causing proliferative endarteritis, pulmonary hypertension (PH) and cardiac failure.
Objectives
The aim was to assess the utility of thoracic radiology and echocardiography in the classification of the severity of the disease.
Methods
WSVA7-0142 DIAGNOSTIC IMAGING
CT PNEUMOCOLONOGRAPHY FOR COLONIC MASS IN A DOG
S. Choen1, M. Choi1, S. Hong1, D. Oh1, S. Lee1, S. Kim1, J. Hwang1, M. Jang1, H. Kim1, J. Hwang1
1Seoul National University, College of Veterinary Medicine, Seoul, Republic of Korea
Introduction
The colorectum can be a difficult anatomic
region to image and each of the commonly
utilized imaging modalities such as radiography, ultrasound, and colonoscopy has limitations. CT pneumocolonography(CTP) is a noninvasive, quick, and accurate method in detecting large colorectal lesions. Additionally, it enables clinicians to identify the characteristics of lesions and to determine the stage of tumor on the basis of extracolonic findings.Objectives
The purpose of the present study is to raise awareness of the usefulness of CTP in evaluating colonic mass in dogs.
Methods
A 10-year-old Spitz was presented with a history
of chronic hematochezia and increased defecation over 6 months. Ultrasonography revealed a heterogeneous focal mass at the descending colon. And CT pneumocolongraphy was performed using specific contrast administration protocols. After
27 days, the patient underwent partial colectomy and lymphadenoectomy and tissue samples were histopathologically examined.
Results
On pre- and post- contrast CT images of the abdomen, an irregular shaped heterogeneous mass with its
length 4.78 cm in the descending colon was detected and intestinal adenocarcionoma was confirmed by histopathological exams.
Conclusions
CTP is a feasible technique to visualize large colorectal lesions and to determine the accurate location and infiltrative degree of colorectal mass. It could also be utilized as a precise measurement tool for the distance from the anus to the lesions. These features support the use of CTP as an alternative screening option for colorectal lesions.
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21 heartworm-infected dogs were classified in 2
groups based on the symptomatology, color intensity
of the antigens test, presence/absence of parasites in echocardiographic exam and subjective evaluation of the thoracic radiography. For this study, the Vertebral Heart Score (VHS) and ratio for the right cranial pulmonary artery to the fourth rib (RCrPa/4R) were measured in thoracic radiographies. The Right Pulmonary Artery Distensibility Index (RPAD Index) was echocardiographically assessed to evaluate the presence or absence of PH.
Results
Mildly-diseased dogs (n=14) presented VHS of 10.25 and RCrPa/4R ratio of 1.29. The RPAD Index was 31.84%. Severely-diseased dogs (n=7) had a VHS of 10.85, RCrPa/4R ratio of 2.15 and the RPAD Index was 25.68%. Significant differences were observed in RCrPa/4R and RPAD Index between both groups (p<0.05).
Conclusions
VHS and RCrPa/4R were increased in all animals, especially in severely-diseased dogs. The RPAD Index showed presence of PH in all dogs, being greater in the severely-diseased animals. The diagnostic imaging may be useful in the objective establishment of the severity of the disease in dogs with heartworm and further research may allow the establishment of reference values to objectively classify the severity of heartworm disease in dogs.
 42ND WORLD SMALL ANIMAL VETERINARY ASSOCIATION CONGRESS AND FECAVA 23RD EUROCONGRESS
  





























































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