Skip to main content

Table 3 Reported performance characteristics of selected commercial heartworm antigen tests used in cats

From: Prime detection of Dirofilaria immitis: understanding the influence of blocked antigen on heartworm test performance

Test % Sensitivity % Specificity Heartworm positive/total tested Reference
VetScan 79.9 99.7 29/380a [61]
DiroCHEK® 89.7 100 39/81a, b, c, d [64]
SNAP® Feline Triple® 89.3 99.5 26/238a, e [65]
DiroCHEK® 78.9 98.1 19/330a, b [66]
SNAP® Feline HTWM 73.7 99.4
SNAP® Feline HTWM 79.3 98.0 29/380a, b [67]
CHAT Canine HTWM 79.3 99.7
DiroCHEK® 86.2 99.1
  1. aInfection verified by necropsy
  2. bHeartworm infection established naturally
  3. cHeartworm infection established by subcutaneous injection of third-stage larvae
  4. dHeartworm infection established by surgical transplantation
  5. eInfection verified by comparison to PetChek® HTWM PF