Figure 1

Representative ultrasound B-mode (uppermost row), QUS spectral parametric maps of AAC and MBF, and the corresponding texture images from one patient in each of the three response groups-early responder (a), late responder (b), and persistent disease (c). QUS parametric images include the largest involved lymph node (central region bounded by closed dotted white curve). The colour bar ranges are 0 to 150 dB/cm3 for AAC, − 20 to 20 dB for MBF and arbitrary unit for the texture features. The scale bar represents 1 cm.