Universidade Estadual de Campinas, Department of Radiology - Campinas (SP), Brazil.
Rev Assoc Med Bras (1992). 2022 Jul;68(7):948-952. doi: 10.1590/1806-9282.20220150.
To evaluate the efficacy of a training program in ultrasound-guided fine needle puncture using a cost-effective model.
We evaluated the training of 20 resident radiology physicians, based on a theoretical course and a practical simulation part with models that focused on the puncture technique of thyroid nodules. The total time to perform the procedure, the number of punctures on the model surface, and the application of a questionnaire were used to assess the performance and confidence of the resident physicians in performing the procedure.
The training model used was easy to reproduce, inexpensive, versatile, and capable of simulating the echotexture of thyroid tissue. There was a significant reduction in the total time needed to perform the procedure with a mean of 173.7 s±91.28 s from R1 and 112.8 s±17.66 s from R2 before the course vs. 19.2 s±112.8 s and 14.3 s±9.36 s, respectively, after the course (p<0.0001); as well as the number of superficial punctures, with a mean of 2.2 punctures±0.92 from R1 and 1.5 punctures±0.32 from R2 before the course vs 1.1 punctures±0.71 and 1.0 puncture±0.0, respectively, after the course (p<0.0001). There was also a subjective improvement in the performance and confidence in performing this procedure.
An inexpensive and easy-to-reproduce gelatin-based model enabled adequate training of resident physicians and proved capable of improving their skills and confidence in simulating the procedure, even with a short period of training.
评估使用经济有效的模型进行超声引导下细针穿刺培训计划的疗效。
我们评估了 20 名住院放射科医师的培训情况，培训基于理论课程和实践模拟部分，重点是甲状腺结节的穿刺技术。使用完成程序的总时间、在模型表面进行的穿刺次数以及问卷调查来评估住院医师执行程序的表现和信心。
使用的培训模型易于复制、成本低廉、用途广泛，并且能够模拟甲状腺组织的回声纹理。在课程之前，R1 的平均总时间为 173.7 秒±91.28 秒，R2 的平均总时间为 112.8 秒±17.66 秒，而在课程之后，R1 的平均总时间为 19.2 秒±112.8 秒，R2 的平均总时间为 14.3 秒±9.36 秒（p<0.0001）；同时，浅层穿刺次数也有所减少，R1 的平均穿刺次数为 2.2 次±0.92 次，R2 的平均穿刺次数为 1.5 次±0.32 次，而在课程之后，R1 的平均穿刺次数为 1.1 次±0.71 次，R2 的平均穿刺次数为 1.0 次±0.0 次（p<0.0001）。此外，在执行该程序的表现和信心方面也有了主观上的提高。
一种基于廉价且易于复制的明胶模型能够为住院医师提供充分的培训，并证明能够提高他们的技能和在模拟程序方面的信心，即使培训时间较短。
