Table 1.
Histological diagnosis in 1080 patients with benign or malignant breast lesions.
Fig 1.
Ultrasonic elastographic image of a papillocarcinoma in a 46-year-old woman.
The lesion was scored 4 with the 5-point scoring method. The strain ratio was 4.54 with the strain ratio method at the same breast tissue depth as the reference.
Fig 2.
Ultrasonic elastographic image of an invasive lobular carcinoma in a 77-year-old woman.
The lesion was scored 4 with the 5-point scoring method. The strain ratio was 8.29 with the strain ratio method at the same breast tissue depth as the reference.
Fig 3.
Receiver operating characteristic curves for the 5-point scoring method and the strain ratio method.
Table 2.
Comparison of sensitivity, specificity, accuracy, PPV and NPV obtained using strain ratio method and 5-point scoring method of the differentiation of benign and malignant breast lesions.
Fig 4.
Ultrasonic elastographic image of an IDC in a 47-year-old woman.
The lesion was scored 5 with the 5-point scoring method and the maximum diameter of the lesion was 8.2mm. The strain ratio was 6.55 with the strain ratio method at the same breast tissue depth as the reference.
Fig 5.
Ultrasonic elastographic image of an IDC in a 52-year-old woman.
The lesion was scored 5 with the 5-point scoring method and the maximum diameter of the lesion was 28.1mm. The strain ratio was 11.09 with the strain ratio method at the same breast tissue depth as the reference.
Table 3.
Correlating the median strain ratios of lesions with each elasticity score.
Fig 6.
Ultrasonic elastographic image of a fibroadenomatous hyperplasia in a 39-year-old woman.
The lesion was scored 1 with the 5-point scoring method. The strain ratio was 0.68 with the strain ratio method at the same breast tissue depth as the reference.
Fig 7.
Ultrasonic elastographic image of a fibroadenoma in a 38-year-old woman.
The lesion was scored 2 with the 5-point scoring method. The strain ratio was 1.70 with the strain ratio method at the same breast tissue depth as the reference.
Fig 8.
Ultrasonic elastographic image of a papiloma in a 34-year-old woman.
The lesion was scored 3 with the 5-point scoring method. The strain ratio was 1.91 with the strain ratio method at the same breast tissue depth as the reference.
Fig 9.
Ultrasonic elastographic image of a invasive lobular carcinoma in a 69-year-old woman.
The lesion was scored 4 with the 5-point scoring method. The strain ratio was 4.37 with the strain ratio method at the same breast tissue depth as the reference.
Fig 10.
Ultrasonic elastographic image of a IDC in a 56-year-old woman.
The lesion was scored 5 with the 5-point scoring method. The strain ratio was 11.20 with the strain ratio method at the same breast tissue depth as the reference.
Fig 11.
Receiver operating characteristic curves for the 5-point scoring method and the strain ratio method in differentiating malignant from benign legions for the lesions with elasticity score 3 and 4.
Table 4.
Analysis of false-positive and false-negative diagnosis by strain ratio method.
Table 5.
Histological diagnosis with lesions misdianosed by both two UE methods.
Fig 12.
Ultrasonic elastographic images of a IDC in a 41-year-old woman.
Left: The lesion was scored 3–4 with the 5-point scoring method. Right: The strain ratio was 5.34(malignant) with the strain ratio method at the same breast tissue depth as the reference.
Fig 13.
Ultrasonic elastographic image of a DCIS 32-year-old woman.
The lesion was scored 1(benign) with the 5-point scoring method. The strain ratio was 0.89(benign) with the strain ratio method at the same breast tissue depth as the reference.