Table 4 Diagnostic performance variables (%) of different ultrasound methods to predict metastasis, reactivity or alterations (metastasis + reactivity) in inguinal and axillary lymph nodes of bitches with mammary neoplasms.
From: Ultrasonography for lymph nodes metastasis identification in bitches with mammary neoplasms
Parameter | Diagnosis | Cut-off point | Sens% | Spec% | Accur% | AUC% |
|---|---|---|---|---|---|---|
Inguinal lymph nodes | ||||||
Short/Long axis ratio | Altered | <0,41 | 76 | 47 | 67 | 59 |
Metastatic | <0,38 | 63 | 41 | 45 | 56 | |
Vascularization | Altered | Peripheral | 22 | 97 | 44 | 59 |
Metastatic | Peripheral | 26 | 86 | 75 | 55 | |
SWV (m/s) | Reactive | >2,1 | 92 | 83 | 89 | 82 |
Metastatic | >2,5 | 95 | 87 | 90 | 92 | |
Altered | >2,1 | 94 | 83 | 90 | 85 | |
Deformability | Metastatic | Hard | 53 | 83 | 58 | 87 |
Pattern | Metastatic | Heterog | 32 | 94 | 46 | 82 |
Axillary lymph nodes | ||||||
Short/Long axis ratio | Altered | >0,45 | 67 | 52 | 62 | 58 |
Metastatic | >0,51 | 78 | 62 | 64 | 67 | |
Vascularization | Altered | Peripheral | 5 | 90 | 34 | 52 |
Metastatic | Peripheral | 18 | 95 | 86 | 60 | |
SWV (m/s) | Reactive | >2,0 | 93 | 81 | 89 | 89 |
Metastatic | >2,4 | 100 | 94 | 90 | 99 | |
Altered | >2,0 | 94 | 81 | 90 | 91 | |
Deformability | Metastatic | Hard | 67 | 80 | 86 | 69 |
Pattern | Metastatic | Heterog | 56 | 98 | 94 | 86 |
