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,江苏 南京 210029 ; 2.南京医科大学基础医学院人体解剖学系,江苏 南京 211166

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R445.2

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江苏省青蓝工程中青年学术带头人基金(KY101R202023)


The clinical value of deep learning reconstruction algorithm in pancreatic HASTE ⁃ T2WI sequence
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1Department of Radiology,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029 ; 2.Departmentof Human Anatomy,School of Basic Medicine,Nanjing Medical University,Nanjing 211166 ,China

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    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序列在胰腺磁共振成像(magnetic resonance imaging,MRI)中的临床应用价值。方法: 应用3.0T 磁共振对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,在胰腺 MRI 扫描中有很好的临床应用价值。

    Abstract:

    Objective:To evaluate the clinical value of deep learning(DL)- based reconstruction algorithm for half - Fourier acquisition single - shot turbo spin echo(HASTE)T2 - weighted imaging(T2WI)in pancreatic magnetic resonance imaging(MRI). Methods:A total of 69 patients underwent pancreatic conventional BLADE-TSE-T2WI and based on deep learning HASTE-DL-T2WI sequences scanning using 3.0T MR. The overall image quality,pancreatic sharpness,biliary duct clarity,and artifacts were subjectively scored using a Likert 5-point scale. The contrast to noise ratio(CNR)and signal to noise ratio(SNR)of normal pancreatic tissue and the lesion in both sequences were measured and compared,and the scan time was recorded. Results:The HASTE - DL sequence scored significantly higher in overall image quality,pancreatic sharpness,and bile duct clarity than the BLADE - TSE sequence(P < 0.001),with no statistical difference in artifact scores(P > 0.05). The SNR of normal pancreatic tissue,lesion SNR,and CNR in HASTE-DL images were superior to those of BLADE-TSE sequence(P < 0.001). Additionally,the scanning time of HASTEDL was reduced by 78% compared to BLADE -TSE. Conclusion:Compared to BLADE -TSE sequence,HASTE -DL provides better overall image quality,superior pancreatic sharpness and bile duct clarity,higher SNR and CNR,and significantly shorter scan time. Thus,HASTE-DL T2WI demonstrates excellent clinical utility in pancreatic MRI.

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徐思雨,张永杰,田水,王建伟.深度学习重建算法在胰腺HASTE⁃T2WI序列中的临床应用价值[J].南京医科大学学报(自然科学版),2025,45(6):810-815

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  • 收稿日期:2024-10-16
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  • 在线发布日期: 2025-06-10
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