Fig. 1From: Correlation study between flash dual source CT perfusion imaging and regional lymph node metastasis of non-small cell lung cancerA squamous cell carcinoma at the upper lobe of right lung with right hilar lymph node metastasis. (a) Functional map of perfusion showed that blood flow value was low (48.36 ml/100 ml/min). (b) CD34 staining showed microvessels with luminal vessels (thick arrow) and without luminal vessels (thin arrow) and the latter accounted for the main part (× 200). (c) SMA staining showed fewer microvessels covered with completed layers of smooth muscle cells (arrows) (× 200)Back to article page