The goal of this clinical study is to compare the tissue adequacy, cellularity, blood contamination, accuracy, sensitivity, specificity of the 22G Franseen needle combined with three different suction techniques (dry-suction, wet-suction, and slow-pull) in Endoscopic ultrasound-guided fine-needle biopsy for solid pancreatic lesions.
None
contraindications to endoscopy, such as severe cardiovascular and cerebrovascular diseases;
bleeding coagulation dysfunction (prothrombin international normalized ratio ≥1.5, platelet count ≤ 50 000) or use of antiplatelet drugs;
confirmed pregnancy or possible pregnancy;
pathological diagnosis has been obtained by other methods;
6
Treatment groupsSee each treatment group below.