Research Article The Role of Contrast-Enhanced Ultrasound in Selection Indication and Improveing Diagnosis for Transthoracic Biopsy in Peripheral Pulmonary and Mediastinal Lesions

which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective. To investigate the value of contrast-enhanced ultrasound (CEUS) in transthoracic biopsy of peripheral lung and mediastinal lesions. Methods. Of 142 patients, 82 patients received CEUS before biopsy and were defined as CEUS group. The remaining 60 patients only underwent conventional ultrasound (US) before biopsy and were served as US group. The information of CEUSwas used for selecting indication and instructing biopsy.The imaging features, number of punctures, diagnostic successful rate, and complication rate between the two groups were compared. Results. Necrosis was demonstrated in 43.9 % of the lesions in CEUS group and in 6.7 % of US group