Keywords:
Breast, Ultrasound physics, Oncology, Ultrasound, Elastography, Screening, Imaging sequences, Cancer
Authors:
G. A. G. M. Hendriks, C. Chen, H. H. G. Hansen, C. L. de Korte; Nijmegen/NL
DOI:
10.26044/ecr2019/C-1887
Results
31 women participated in which 2 IDC,
2 ductal carcinoma in situ (DCIS),
1 malignant phyllodes tumor (PT),
3 fibro-adenoma (FA),
8 cysts and 5 other benign lesions (OtherB) were present.
The median strain ratios in the annotated regions were 2.8 and 3.5 (IDC); 0.9 and 2.1 (DCIS),
1.3 (PT),
and 0.8 ± 0.5 (FA),
and 1.3 ± 0.6 (OtherB) in median ± IQR determined over all patients (Figure 3).
IDC showed increased strain ratios compared to benign lesions (FA,
OB and cysts).
DCIS is often considered as pre-cancerous (less stiff compared to IDC) and may explain the reduced strain ratios compared to IDC [7].
In subjects without lesions (11),
ratios (1.3 ± 0.6) were close to 1 as expected for healthy tissue for a randomly selected spherical region.
B-mode images of the IDC with the strain ratios overlaid are visualised in Figure 4.