Objective: To compare thoracic radiographs of clinically normal dogs and dogs with mild clinical heartworm disease with images transmitted by a desk-top, 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 high-speed 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.
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