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in Journal of the American Veterinary Medical Association

Objective

To compare thoracic radiographs of clinically normal dogs and dogs with mild clinical heartworm disease with images transmitted by a desktop, two-way audiovisual teleconferencing system.

Design

Prospective, matched-set study.

Study Population

50 thoracic radiographs from clinically normal and heartworm-infected dogs and the digitally transmitted images of those radiographs.

Procedure

Thoracic radiographs from 25 clinically normal dogs and 25 dogs infected with 1 to 24 heartworms were evaluated by 3 clinicians. Using classic criteria for heartworm disease, evaluations of radiographs and images transmitted digitally over 2 highspeed data-transfer telephone lines (56 kilobits/s/line) were performed. Clinicians were asked to determine whether dogs had radiographic signs of heartworm disease.

Results

Clinicians’ ability to detect heartworm disease did not differ between interpretations of radiographs and those of transmitted images.

Clinical Implications

Radiographic images transmitted via a teleconference system can be used to provide reliable diagnostic information. Thoracic radiographs can be interpreted at a remote site permitting rapid consultation and immediate advice on clinical management. (J Am Vet Med Assoc 1997;211:1245–1248)

Free access
in Journal of the American Veterinary Medical Association

Summary

Hepatobiliary scintigraphy provides a noninvasive assessment of hepatobiliary structure and function, and has been used extensively in people. Hepatocellular measurements determined in the cats of this study include cardiac washout (≤ 2 minutes) and time of maximal hepatic activity (≤ 5 minutes) and hepatic washout (≤ 30 minutes). The gallbladder response to synthetic cholecystokinin was determined to be ≤ 3 minutes. Additional measurements also were identified. Potential use of hepatobiliary scintigraphy in feline medicine is discussed.

Free access
in American Journal of Veterinary Research

Abstract

Objective—To determine the effects of treatment with and without adjuvant radiation therapy on recurrence of ocular and adnexal squamous cell carcinoma (SCC) at specific anatomic locations in horses.

Design—Retrospective study.

Animals—91 horses.

Procedures—Medical records of horses with histologically confirmed ocular and adnexal SCC evaluated from 1985 to 2002 were reviewed. Sex, breed, age, type of treatment, location, and recurrence of SCC were recorded. Two treatment groups determined by recurrence of SCCs treated with and without adjuvant radiation therapy were established.

Results—The anatomic site with the highest recurrence rate was the limbus (junction of the cornea and sclera) or bulbar conjunctiva (47.7%), independent of treatment group. There was a significant difference in recurrence rates of ocular and adnexal SCCs between the 2 treatment groups, independent of anatomic location. Recurrence rates of SCCs treated with and without adjuvant radiation therapy were 11.9% and 44.1%, respectively. Recurrence rates for SCCs of the eyelid, limbus or bulbar conjunctiva, and cornea treated with adjuvant radiation therapy were significantly different from those for SCCs treated without adjuvant radiation therapy. The most frequently represented anatomic site for ocular and adnexal SCCs was the eyelid (28.7%). Coat color, breed, and the interaction of age and breed had a significant effect on tumor recurrence regardless of treatment type and anatomic location.

Conclusions and Clinical Relevance—Results indicated that ocular and adnexal SCCs treated with adjuvant radiation therapy had a significantly lower recurrence rate, compared with SCCs treated without adjuvant radiation therapy, independent of anatomic location. (J Am Vet Med Assoc 2004;225:1733–1738)

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in Journal of the American Veterinary Medical Association