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(interobserver reliability), and over time (test-retest reliability). 11 Intraobserver and interobserver reliability of CRT measurement has been studied in people, with conflicting results. Overall, agreement between observers was poor in nontrained physicians

Open access
in Journal of the American Veterinary Medical Association

Abstract

Objective—To evaluate the usefulness of high-resolution ultrasonography (HRUS) for measurements of anterior segment structures in canine eyes.

Animals—4 clinically normal Beagles.

Procedure—Images were obtained from 8 eyes with a handheld 20-MHz transducer. Eleven anterior segment structures on each image were measured 5 times by 2 independent observers. Coefficients of variation (CVs) for measurements were used to assess intraobserver reliability. Interobserver reliability was assessed by comparing measurements obtained by the 2 observers from the same images. Five images were sequentially obtained from 2 locations (ie, superior and temporal) to evaluate image reproducibility. Anterior segment structures were measured once on each image; image reproducibility was assessed by use of the CV for each parameter measured. Imaging location was assessed by comparison of CV for measurements from each location.

Results—CVs were < 10% for observer A for all measurements except the ciliary cleft area (11.63%). The CVs were > 10% for observer B for measurements of the angle recess area (18.51%) and ciliary cleft width (17.44%) and area (16.01%). Significant differences in measurements between observers were found for 5 of 11 anterior segment structures. Imaging the superior aspect of the globe provided the most reproducible images, although image reproducibility was still somewhat variable, with the highest and lowest CVs for measurements of 33.01% and 11.32%, respectively, in the superior position.

Conclusions and Clinical Relevance—High-resolution ultrasound images can be used to reliably measure various anterior segment structures. Clinically relevant findings in the anterior segment of canine eyes may be detectable by use of HRUS. (Am J Vet Res 2005;66:1775–1779)

Full access
in American Journal of Veterinary Research

(Y-RK). To evaluate interobserver reliability, assessments of SWVs of each LN were performed by 2 other investigators (S-HL and I-MS). The 3 investigators were trained in ultrasonography. Intraclass correlation coefficients were used to describe intra

Full access
in American Journal of Veterinary Research

the study reported here was to determine the intra- and interobserver reliability of the TFBUT test as it would be performed in dogs in clinical practice. A secondary objective was to assess reliability of the TFBUT test after application of

Full access
in American Journal of Veterinary Research

, a test was repeated to obtain the same number of measurements for each bird. Two independent observers, who were unaware of each other's results, were used to determine interobserver reliability in a subsample (12%) of randomly chosen measurements

Full access
in American Journal of Veterinary Research

normality with the Shapiro-Wilk test. Diameter ratios are reported as mean and 95% CI. Intra- and interobserver reliability (agreement) in vessel diameter measurements were assessed by calculation of ICCs. Strength of agreement was interpreted as poor when

Full access
in American Journal of Veterinary Research

of the medial eminence. The ICIESw was measured between 2 lines that bisected each medial and lateral eminence and were perpendicular to the tibial plateau line. Interobserver reliability assessment —Radiographic measurements were performed on an

Open access
in American Journal of Veterinary Research

Abstract

Objective—To determine the interobserver variability of assessment of exercise-induced pulmonary hemorrhage (EIPH) during tracheobronchoscopic examination in horses.

Animals—747 Thoroughbred racehorses.

Procedure—850 tracheobronchoscopic examinations were performed within 2 hours of racing for the horses. Examinations were recorded on videotape, and EIPH and its severity were assessed independently by 3 veterinarians. Concordance was determined by calculation of the Cohen weighted κ statistic and tabulation of scores assigned by each observer.

Results—Weighted κ statistics ranged from 0.75 to 0.80. In 99.4% of observations, all observers agreed or 2 of 3 agreed and the third differed by ≤ 1 grade.

Conclusions and Clinical Relevance—Results indicated that interobserver reliability of tracheobronchoscopic assessment of EIPH in Thoroughbred racehorses is high when the examination is conducted by experienced veterinarians. Concordance among investigators is sufficient to justify use of this grading system for further studies and clinical descriptions of EIPH. (Am J Vet Res 2005;66:596–598)

Full access
in American Journal of Veterinary Research

Abstract

OBJECTIVE

To measure the mitral annulus in dogs. Our hypothesis was that mitral measurement would be possible and consistent among observers using CT.

SAMPLE

Thoracic CT scans of dogs without known heart disease.

PROCEDURES

Five trained investigators measured 4 aspects of the mitral valve and the fourth thoracic vertebrae (T4) length using multiplanar reformatting tools. Ten randomly chosen animals were measured by all investigators to determine interobserver reliability.

RESULTS

There were 233 CT scans eligible for inclusion. Dogs weighed 2 to 96 kg (mean, 28.1 kg), with a variety of breeds represented. Golden Retrievers (n = 28) and Labrador Retrievers (n = 37) were overrepresented. The intraclass correlations were all greater than 0.9, showing excellent agreement between observers. The means and SDs of each measurement were as follows: trigone-to-trigone distance, 17.2 ± 4.7 mm; the remaining circumference, 79.0 ± 17.5 mm; commissure-to-commissure distance, 30.8 ± 6.5 mm; septal leaflet-to-lateral leaflet distance, 26.3 ± 6.0 mm; T4 length, 16.9 ± 3.1 mm; and the total circumference normalized by T4, 5.7 ± 0.7 mm.

CLINICAL RELEVANCE

This study provides information that may help in the development of future treatment for mitral valve dysfunction and subsequent annular enlargement.

Open access
in American Journal of Veterinary Research

.61 to 0.80), and almost perfect (κ, 0.81 to 1.00). 30–32 To calculate interobserver reliability (the frequency of agreement between the 4 observers), grades assigned by the observer with the highest intraobserver agreement (the veterinary medical

Full access
in American Journal of Veterinary Research