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European Radiology Experimental
Fig. 1 | European Radiology Experimental

Fig. 1

From: Breast cancer: comparison of quantitative dual-layer spectral CT and axillary ultrasonography for preoperative diagnosis of metastatic axillary lymph nodes

Fig. 1

Arterial phase dual-layer detector spectral CT (DLSCT) examination of a woman with a suspicious lymph node in the right axilla. The lymph node shows high conventional CT HU values (a), Δ contrast enhancement (c) (conventional CT (HU) (a) − virtual non-contrast (HU) (b)), low Z effective (d), high iodine density (e), and spectral slope ((mono-energy 40 keV (f) minus mono-energy 100 keV (g))/60 keV). Based on the cutoff values, DLSCT diagnosed the lymph node as metastatic. Axillary ultrasonography (h) described the lymph node as suspicious; however, fine-needle aspiration was negative. Sentinel lymph node biopsy contained malignant tumour cells from invasive ductal carcinoma

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