Moreira Inês C, Ventura Sandra Rua, Ramos Isabel, Rodrigues Pedro Pereira
Faculty of Medicine of the University of Porto, Porto, Portugal.
J Med Internet Res. 2015 Jan 5;17(1):e3. doi: 10.2196/jmir.3344.
Mammography is considered the best imaging technique for breast cancer screening, and the radiographer plays an important role in its performance. Therefore, continuing education is critical to improving the performance of these professionals and thus providing better health care services.
Our goal was to develop an e-learning course on breast imaging for radiographers, assessing its efficacy, effectiveness, and user satisfaction.
A stratified randomized controlled trial was performed with radiographers and radiology students who already had mammography training, using pre- and post-knowledge tests, and satisfaction questionnaires. The primary outcome was the improvement in test results (percentage of correct answers), using intention-to-treat and per-protocol analysis.
A total of 54 participants were assigned to the intervention (20 students plus 34 radiographers) with 53 controls (19+34). The intervention was completed by 40 participants (11+29), with 4 (2+2) discontinued interventions, and 10 (7+3) lost to follow-up. Differences in the primary outcome were found between intervention and control: 21 versus 4 percentage points (pp), P<.001. Stratified analysis showed effect in radiographers (23 pp vs 4 pp; P=.004) but was unclear in students (18 pp vs 5 pp; P=.098). Nonetheless, differences in students' posttest results were found (88% vs 63%; P=.003), which were absent in pretest (63% vs 63%; P=.106). The per-protocol analysis showed a higher effect (26 pp vs 2 pp; P<.001), both in students (25 pp vs 3 pp; P=.004) and radiographers (27 pp vs 2 pp; P<.001). Overall, 85% were satisfied with the course, and 88% considered it successful.
This e-learning course is effective, especially for radiographers, which highlights the need for continuing education.
乳腺钼靶摄影被认为是乳腺癌筛查的最佳影像学技术，放射技师在其操作中起着重要作用。因此，继续教育对于提高这些专业人员的表现从而提供更好的医疗服务至关重要。
我们的目标是为放射技师开发一门关于乳腺成像的电子学习课程，评估其有效性、效能和用户满意度。
对已经接受过乳腺钼靶摄影培训的放射技师和放射学学生进行分层随机对照试验，使用知识前后测试和满意度问卷。主要结局是测试结果的改善（正确答案的百分比），采用意向性分析和符合方案分析。
共有54名参与者被分配到干预组（20名学生加34名放射技师），53名对照组（19 + 34）。40名参与者（11 + 29）完成了干预，4名（2 + 2）中断干预，10名（7 + 3）失访。干预组和对照组在主要结局上存在差异：分别为21个百分点和4个百分点（pp），P <.001。分层分析显示在放射技师中有效（23 pp对4 pp；P =.004），但在学生中不明确（18 pp对5 pp；P =.098）。尽管如此，学生后测结果存在差异（88%对63%；P =.003），而前测中不存在差异（63%对63%；P =.106）。符合方案分析显示效果更高（26 pp对2 pp；P <.001），在学生（25 pp对3 pp；P =.004）和放射技师（27 pp对2 pp；P <.001）中均如此。总体而言，85%的人对课程满意，88%的人认为课程成功。
这门电子学习课程是有效的，特别是对放射技师而言，这突出了继续教育的必要性。
