Abstract: objective To introduce the application of 3 D printing technique in standardized training of percutaneous accurate biopsy for resident. Methods 22 resident doctors were randomly divided into innovative teaching method group and traditional teaching method group with 11 persons in each group. Doctors in both groups received standardized training in percutaneous biopsy procedure. Creative teaching group was given 3D printing template combined with guided operation

while traditional teaching group used bare hand operation to sum up the time of puncture biopsy in both groups. The adjustment times of biopsy needle

the times of CT scan during operation

the positive rate of sampling

the incidence of complications

etc. Results During percutaneous lung biopsy

two groups of physicians performed the procedure. There was no significant difference between the two groups (22.34 ±3.12 vs 23.56 ±4.21) and the positive rate of sampling [8 (72.73) vs 10 (90.91)] (p > 0.05)

but the times of adjusting biopsy needle during operation were (2.11 ±0.67) vs 1.02 ±0.93. The frequency of intraoperative CT scanning (4.35 ±0.76 vs 3.12 ±0.84) and the incidence of complications [6 (54.55) vs 1 (27.27)] were significantly different (P < 0. 05). In Percutaneous Peritoneal Organ biopsy

two groups of physicians performed the operation time (16.25) There was no significant difference in the number of CT scans (3.45 ±0.79 vs 2.98 ±0.23) and the positive rate (11 (78.57) vs 15 (88.24). However

the number of intraoperative biopsy needle adjustments (2.43 ±0.43 vs 1.84 ±0.89) and the incidence of complications [5 (35.71) vs 1 (5.88)] were significantly different (P < 0.05). Conclusion The application of 3D printing technology combined with the teaching of three-dimensional guided stent can make percutaneous biopsy technique. Process

standardization. It is of great significance to standardize the operation and improve the quality of medical treatment

and it is worth popularizing in clinical teaching.