Energy spectrum computed tomography multi-parameter imaging in preoperative assessment of vascular and neuroinvasive status in gastric cancer

Figure 4 Negative energy spectrum computed tomography image of nerve invasion in gastric cancer. A: Delay period 70 keV single energy image; B: Delay period 70 keV iodine color map; C: No vascular invasion was observed under light microscope (HE × 100); D: No nerve invasion was observed under light microscope (HE × 200).