Significance of Ultrasound Elastography in Lymph Node

All patients were examined by enhanced chest computed tomography (CT), the B-mode ultrasound and endobronchial ultrasound (EBUS)guided elastography before EBUS-TBNA. Each lymph node was assessed by describing the characteristics of the CT image (short diameter, texture, shape, boundary, mean CT value), B-mode ultrasound (short diameter, echo characteristic, shape, boundary) and ultrasound elastography (image type, grading score, strain rate, blue area ratio).