| 饶显锋,杨舒文,陈静,康正文,陈剑威,吴泽涛,汪童,王波,张秋生.基于深度学习重建超快速扫描方案用于颈椎MR检查[J].中国医学影像技术,2024,40(6):843~847 |
| 基于深度学习重建超快速扫描方案用于颈椎MR检查 |
| Ultra-fast scanning scheme based on deep learning reconstruction for cervical MR examination |
| 投稿时间：2023-11-21 修订日期：2023-12-23 |
| DOI：10.13929/j.issn.1003-3289.2024.06.010 |
| 中文关键词: 颈椎 磁共振成像 深度学习 |
| 英文关键词:cervical vertebrae magnetic resonance imaging deep learning |
| 基金项目:深圳市自然科学基金面上项目(JCYJ20230807115301003)。 |
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| 中文摘要: |
| 目的 观察基于深度学习重建(DLR)的超快速扫描方案用于颈椎MR扫描的可行性及其诊断价值。方法 前瞻性对36名受试者分别采用常规(扫描时间6 min 14 s)及超快速(2 min)扫描方案采集颈椎MR矢状位T1WI、脂肪抑制矢状位图像及轴位T2WI;以DLR方法重建超快速MRI。比较不同图像质量主、客观评价结果,以及观察者间诊断椎间盘退行性病变和椎间盘突出的一致性。结果 与常规图像相比,超快速-DLR图像伪影显著减少(P＜0.05)。观察者间主观评估图像质量结果的一致性均为良好(Kappa均≥0.60)。相比常规图像,超快速-DLR 矢状位T1WI、T2WI及轴位T2WI中,脊髓、脑脊液(CSF)和椎体信噪比及脊髓/CSF对比度均显著提高(P均＜0.001)。2名医师基于超快速-DLR和常规图像诊断椎间盘退行性病变的Kappa值分别为0.94、1.00,诊断椎间盘突出时分别为0.96、0.98。结论 相比常规扫描方案,超快速-DLR用于颈椎MR检查可缩短扫描时间,而所获图像质量及诊断效能与之相似。 |
| 英文摘要: |
| Objective To explore the feasibility and diagnostic value of ultra-fast scanning scheme based on deep learning-based reconstruction (DLR) for cervical MR examination. Methods Thirty-six subjects were prospectively enrolled and underwent both conventional scheme (scan time: 6 min 14 s) and ultra-fast scheme (2 min) cervical spine MR scanning to acquire encompassing sagittal T1WI, sagittal adipose suppression T2WI and axial T2WI. The ultra-fast MRI were reconstructed using DLR method. The subjective and objective evaluations on imaging qualities of different MRIs were compared, along with the inter-observer agreement for diagnosing intervertebral disc degeneration and herniation. Results Compared with conventional MRI, artifacts in ultra-fast DLR images significantly reduced (P＜0.05). The subjective evaluation results of MRI had good agreement (all Kappa≥0.60). Compared with conventional MRI, the sagittal T1WI, T2WI and axial T2WI obtained with ultra-fast DLR showed significantly improved signal-to-noise ratio (SNR) of the spinal cord, cerebrospinal fluid (CSF) and vertebral body, as well as the spinal cord/CSF contrast (all P＜0.001). The Kappa value of 2 physicians for diagnosing intervertebral disc degeneration based on ultra-fast DLR and conventional scheme images was 0.94 and 1.00, respectively, of intervertebral disc herniation was 0.96 and 0.98, respectively. Conclusion Compared with conventional scanning scheme, using ultra-fast DLR scheme in cervical MR examination could shorten scanning time while achieve similar image quality and diagnostic accuracy. |
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