Intestinal Imaging Centre and Wolfson Unit for Endoscopy, St Mark's Hospital, Imperial College London, London, UK.
Clin Radiol. 2010 Dec;65(12):997-1004. doi: 10.1016/j.crad.2010.05.009. Epub 2010 Sep 15.
To evaluate the efficacy of a new intensive "hands-on" course designed to train small teams of radiographers in computed tomography colonography (CTC) technique and initial interpretation for patient triage.
The course comprised small-group lectures, active participation in the daily CTC service with practical technique and image interpretation training by experienced radiologists and radiographers. Evaluation was by assessment of knowledge using randomized sets of multiple choice questions (MCQ; pre/post-course), practical technique using checklists and expert global scores, and interpretation performance outcomes using randomized pre/post-course test datasets (five validated CTC examinations each). Paired t-tests were used to investigate change in performance for MCQ score and interpretation accuracy.
Thirteen courses with 49 participants were evaluated over 2 years. Practical skills were high, with mean (SD) checklist scores of 14/15 (0.85) and global scores of 26/30 (2.3). MCQ scores increased significantly from a mean of 59% pre-course to 69% post-course, p<0.001. Correct classification of CTC examination improved significantly from a mean of 55% pre-course to 71% post-course, p<0.001. Cancer and large polyp (>10mm) detection rates also improved significantly from 49% to 60%, p=0.002.
Structured training in CTC can significantly improve knowledge and interpretation skills of radiographers, while assessing safe procedural performance. Implementation of similar programmes nationally may help reduce performance gaps between centres.
评估一种新的强化“实践”课程的疗效，该课程旨在培训小团队的放射技师进行 CT 结肠成像（CTC）技术和初步分诊患者的初步解读。
该课程包括小组讲座、在日常 CTC 服务中积极参与，由经验丰富的放射科医生和技师进行实际技术和图像解读培训。通过随机多项选择题（MCQ；课前/课后）评估知识，通过检查表和专家总体评分评估实践技术，通过随机课前/课后测试数据集（每个数据集五个验证的 CTC 检查）评估解读性能结果。使用配对 t 检验来研究 MCQ 分数和解释准确性的变化。
在两年内评估了 13 个课程，共有 49 名参与者。实践技能很高，检查表平均得分为 14/15（0.85），总体得分为 26/30（2.3）。MCQ 分数从课前的 59%显著提高到课后的 69%，p<0.001。CTC 检查的正确分类从课前的 55%显著提高到课后的 71%，p<0.001。癌症和大息肉（>10mm）的检出率也从 49%显著提高到 60%，p=0.002。
CTC 的结构化培训可以显著提高放射技师的知识和解读技能，同时评估安全的操作性能。在全国范围内实施类似的计划可能有助于缩小中心之间的绩效差距。
