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Background <p>This study explored the effectiveness of case-based learning (CBL) combined with three-dimensional (3D) image reconstruction technology for liver ultrasound training among standardized training residents.</p> Methods <p>A total of 60 resident physicians receiving standardized training at the Ultrasound Department of Sichuan Provincial People’s Hospital between December 2020 and December 2023 were enrolled. Following a baseline pre-course assessment, participants were randomly assigned to two groups. The experimental group (<i>n</i> = 30) received instruction using a combination of imaging 3D reconstruction technology and CBL, while the control group (<i>n</i> = 30) received traditional teaching, including instructor-led lectures with PowerPoint, anatomical atlases and routine ultrasound images, as well as hands-on training following standard operational demonstrations. Both groups completed 20 class hours. After completion, their performance was evaluated using objective, standardized practical assessments covering liver ultrasound scanning, segmentation, lesion localization, and qualitative diagnosis. In addition, participants’ perceptions and satisfaction were measured using a structured questionnaire with Likert-scale items.</p> Results <p>The experimental group scored significantly higher than the control group in all five aspects of the questionnaire survey (<i>p &lt;</i> 0.05). In addition, the experimental group achieved higher scores in basic liver ultrasound scanning, hepatic segmentation and focal liver lesion localization (all <i>p</i> &lt; 0.05). However, there was no significant difference between the two groups in the qualitative diagnosis assessment of liver mass lesions (<i>p</i> &gt; 0.05).</p> Discussion <p>These findings suggest that integrating CBL with imaging 3D reconstruction technology in liver ultrasound training can effectively enhance the learning outcomes of junior residents. This approach not only improves practical skills but also stimulates intrinsic learning interest, indicating its potential as a promising new teaching model in clinical education.</p>

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Application of case-based learning combined with three-dimensional image reconstruction technology in clinical teaching of liver ultrasound

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月1日

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  • Yanyan Wu,
  • Fang Liu,
  • Hui Zhang

摘要

Background

This study explored the effectiveness of case-based learning (CBL) combined with three-dimensional (3D) image reconstruction technology for liver ultrasound training among standardized training residents.

Methods

A total of 60 resident physicians receiving standardized training at the Ultrasound Department of Sichuan Provincial People’s Hospital between December 2020 and December 2023 were enrolled. Following a baseline pre-course assessment, participants were randomly assigned to two groups. The experimental group (n = 30) received instruction using a combination of imaging 3D reconstruction technology and CBL, while the control group (n = 30) received traditional teaching, including instructor-led lectures with PowerPoint, anatomical atlases and routine ultrasound images, as well as hands-on training following standard operational demonstrations. Both groups completed 20 class hours. After completion, their performance was evaluated using objective, standardized practical assessments covering liver ultrasound scanning, segmentation, lesion localization, and qualitative diagnosis. In addition, participants’ perceptions and satisfaction were measured using a structured questionnaire with Likert-scale items.

Results

The experimental group scored significantly higher than the control group in all five aspects of the questionnaire survey (p < 0.05). In addition, the experimental group achieved higher scores in basic liver ultrasound scanning, hepatic segmentation and focal liver lesion localization (all p < 0.05). However, there was no significant difference between the two groups in the qualitative diagnosis assessment of liver mass lesions (p > 0.05).

Discussion

These findings suggest that integrating CBL with imaging 3D reconstruction technology in liver ultrasound training can effectively enhance the learning outcomes of junior residents. This approach not only improves practical skills but also stimulates intrinsic learning interest, indicating its potential as a promising new teaching model in clinical education.