Table 2. Characterization and agreement analysis between the methods regarding the BI-RADS® classification of breast lesions and regarding the echographic descriptors of the lesions submitted to biopsy, with data from both researchers.
| P1 n(%) | K | P2 n(%) | K | ||||
|---|---|---|---|---|---|---|---|
| ABUS | HHUS | ABUS | HHUS | ||||
| BI-RADS® | |||||||
| Benign | 9(33,3) | 9(33,3) | 0,92* | 13(48,1) | 11(40,7) | 0,70* | |
| Suspect | 18(66,7) | 18(66,7) | 14(51,9) | 16(59,3) | |||
| Echogenicity | |||||||
| Hypoechoic | 10(41,7) | 9(37,5) | 0,90** | 10(41,7) | 11(45,8) | 0,87** | |
| Isoechoic | 0(0,0) | 0(0,0) | 1(4,2) | 0(0,0) | |||
| Heterogeneous | 8(33,3) | 9(37,5) | 8(33,3) | 8(33,3) | |||
| > 1 pattern | 3(12,5) | 3(12,5) | 1(4,2) | 1(4,2) | |||
| Solid-cystic | 3(12,5) | 3(12,5) | 4(16,7) | 4(16,7) | |||
| Form | |||||||
| Oval | 14(58,3) | 13(54,2) | 0,92** | 14(58,3) | 13(54,2) | 0,79** | |
| Round | 0(0,0) | 0(0,0) | 1(4,2) | 0(0,0) | |||
| Irregular | 10(41,7) | 11(45,8) | 9(37,5) | 11(45,8) | |||
| Orientation | |||||||
| Parallel | 23(95,8) | 22(91,7) | 0,75* | 24(100,0) | 22(91,7) | 0,71* | |
| Not parallel | 1(4,2) | 2(8,3) | 0(0,0) | 2(8,3) | |||
| Margins | |||||||
| Circumscribed | 16(66,7) | 16(66,7) | 0,95** | 15(62,5) | 15(62,5) | 0,98** | |
| Indistinct | 4(16,7) | 4(16,7) | 5(20,8) | 4(16,7) | |||
| Angled | 0(0,0) | 1(4,2) | 0(0,0) | 2(8,3) | |||
| Microlobulated | 1(4,2) | 1(4,2) | 2(8,3) | 1(4,2) | |||
| Spiked | 3(12,5) | 2(8,3) | 2(8,3) | 2(8,3) | |||
| Rear acoustics | |||||||
| Absent | 19(79,2) | 18(75,0) | 0,91** | 19(79,2) | 18(75,0) | 0,92** | |
| Acoustic reinforcement | 0(0,0) | 1(4,2) | 0(0,0) | 1(4,2) | |||
| Shadow | 5(20,8) | 5(20,8) | 5 (20,8) | 5(20,8) | |||
*
Kappa;
**
Kendall's Tau-b; n - absolute frequency; % - relative Frequency; ABUS - automated breast ultrasound; HHUS - hand held ultrasound; P1 - researcher 1; P2 - researcher 2