深度学习重建算法在胰腺HASTE-T2WI序列中的临床应用价值
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1.南京医科大学第一附属医院放射科;2.南京医科大学基础医学院人体解剖学系

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江苏省青蓝工程中青年学术带头人基金资助项目(编号:KY101R202023)


The clinical value of deep learning reconstruction algorithm in pancreatic HASTE-T2WI sequence
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    摘要:

    摘 要:目的 探讨基于深度学习(deep learning, DL)重建算法的半傅立叶采集单次快速自旋回波(half-fourier acquisition single-shot turbo spin echo , HASTE)T2WI序列在胰腺MRI中的临床应用价值。方法 应用3.0T MR对69例患者进行胰腺常规BLADE-TSE-T2WI和基于DL的HASTE-DL-T2WI序列扫描。采用Likert Scale量表5分法对两组图像总体质量、胰腺锐利度、胆管显示清晰度、伪影进行主观评分;测量并比较两组图像同层面的胰腺正常组织、病灶的对比噪声比(contrast to noise ratio, CNR)和信噪比(signal to noise ratio, SNR),并记录扫描时间。结果 HASTE-DL序列的图像总体质量、胰腺锐利度以及胆管显示清晰度评分均优于BLADE-TSE序列(P<0.001),两组图像伪影评分差异无统计学意义(P>0.05)。HASTE-DL序列图像的正常胰腺组织SNR、病灶SNR和CNR均优于BLADE-TSE序列图像(P<0.001),HASTE-DL序列的扫描时间较BLADE-TSE序列缩短了78%。结论 与BLADE-TSE序列图像相比,HASTE-DL序列图像总体质量更好,胰腺锐利度及胆管显示清晰度更高、SNR和CNR更优,并且扫描时间更短。故HASTE-DL T2WI序列在胰腺MRI扫描中有很好的临床应用价值。

    Abstract:

    Abstract: Objective To evaluate the clinical value of half-Fourier acquisition single-shot turbo spin sequence based on deep learning reconstruction algorithm (HASTE-DL) T2WI sequence in MRI of pancreas. Methods Sixty-nine patients underwent pancreatic conventional BLADE-TSE-T2WI and based on deep learning HASTE-DL-T2WI sequences scanning using 3.0T MRI. The overall quality, pancreatic sharpness, biliary duct clarity and artifacts of the two groups were qualitatively scored by the Likert 5-point scale method for subjective evaluation. The contrast to noise ratio (CNR) and signal to noise ratio (SNR) of normal tissue and the lesion of the pancreatic of the two groups of images were measured and analyzed. The scanning time of the two sequences were also recorded. Results The overall image quality of the HASTE-DL sequence, the scores of pancreatic sharpness and biliary clarity were better than those of BLADE-TSE sequence (P<0.001).There was no statistically significant difference in the scores of image artifacts between the two groups (P >0.05). The SNR of normal pancreatic tissue, the SNR of lesion and CNR of HASTE DL sequence were better than those of BLADE-TSE sequence (P<0.001). The scanning time of HASTE-DL sequence was 78% shorter than that of BLADE-TSE sequence. Conclusion Compared with BLADE-TSE sequence, the overall quality of HASTE-DL is better, and the pancreatic sharpness and bile duct display clarity are higher, SNR and CNR are better, and the scanning time is shorter. Therefore, HASTE-DL T2WI sequence has good clinical application value in the MRI of pancreas.

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  • 收稿日期:2024-10-15
  • 最后修改日期:2024-11-23
  • 录用日期:2025-05-26
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