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. 2021 Jan 29;14:89. doi: 10.1186/s13071-021-04591-y

Table 2.

Algorithm performance analysis: diagnostic sensitivity and specificity comparing the results reported by an expert (reference) versus by the VETSCAN IMAGYST scanner and algorithm for samples prepared with the VETSCAN IMAGYST centrifugal flotation method

Feline Ancylostoma Toxocara cati Cystoisospora Giardia
True positive 19 32 26 25
False positive 1 0 12 2
True negative 60 46 161 65
False negative 0 2 1 8
Total 80 80 200 100
Sensitivity (95% confidence interval) 100 (87.8–100) 94.1 (82.4–98.8) 96.3 (84.0–99.6) 75.8 (59.4–87.8)a
Specificity (95% confidence interval) 98.4 (92.6–99.8) 100 (94.7–100) 93.1 (88.6–96.2) 97.0 (90.8–99.4)

aThirty-six percent (12/33) of Giardia samples contained ≤ 10 cysts per gram (CPG); diagnostic sensitivity of Giardia samples with > 10 CPG increased to 95.2% (95% confidence interval: 79.8-99.5%)