| 郭睿,周婉惠,胡鹏志,彭松,梁琪,容鹏飞.深度学习全模型迭代算法改善80 kVp低剂量小肠CT造影显示克罗恩病图像质量[J].中国医学影像技术,2025,41(4):535~538 |
| 深度学习全模型迭代算法改善80 kVp低剂量小肠CT造影显示克罗恩病图像质量 |
| Artificial intelligence iterative reconstruction for improving image quality of 80 kVp low-dose CT enterography for Crohn disease |
| 投稿时间：2024-10-18 修订日期：2025-03-17 |
| DOI：10.13929/j.issn.1003-3289.2025.04.006 |
| 中文关键词: 克罗恩病 小肠 体层摄影术,X线计算机 人工智能 |
| 英文关键词:Crohn disease intestine, small tomography, X-ray computed artificial intelligence |
| 基金项目: |
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| 中文摘要: |
| 目的 观察深度学习全模型迭代算法(AIIR)用于改善80 kVp低剂量小肠CT造影(CTE)显示克罗恩病(CD)图像质量的价值。方法 回顾性纳入59例接受80 kVp低剂量CTE检查的CD患者,分别采用混合迭代重建(HIR)及AIIR技术重建CTE图像,比较2组图像主、客观评分,评估AIIR对于改善图像质量的价值。结果 相比HIR组,AIIR组CTE图像显示肠壁、肠腔、肠系膜血管及肠周软组织清晰度更高,显示CD典型征象更为明显,图像质量主观评分更高(P均＜0.001)。AIIR组图像噪声(SD)低于HIR组图像,而非病变肠壁信噪比(SNR)、病变肠壁SNR及对比度噪声比(CNR)均高于HIR组图像(P均＜0.001)。80 kVp CTE检查有效剂量为(2.82±0.54)mSv。结论 AIIR有助于改善80 kVp低剂量CTE显示CD图像质量。 |
| 英文摘要: |
| Objective To observe the value of artificial intelligence iterative reconstruction (AIIR) for improving image quality of 80 kVp low-dose CT enterography (CTE) for Crohn disease (CD). Methods Totally 59 patients with CD who underwent 80 kVp low-dose CTE were retrospectively enrolled, and CTE images were reconstructed with hybrid iterative reconstruction (HIR) (HIR group) and AIIR (AIIR group), respectively. Then subjective and objective scores of image quality were evaluated and compared between groups, and the value of AIIR was analyzed. Results Compared with HIR group, AIIR group clearly displayed the intestinal wall, intestinal lumen, mesenteric vessels and peri-intestinal soft tissue, and displayed typical CD signs more obviously, with higher subjective scores of imaging quality (all P＜0.001). The standard deviation (SD) was lower, while signal-to-noise ratio (SNR) of intestinal walls without disease, SNR and contrast-to-noise ratio (CNR) of diseased intestinal walls in AIIR group were all higher than those in HIR group (all P＜0.001). The effective dose of 80 kVp CTE examination was (2.82±0.54) mSv. Conclusion AIIR was helpful for improving image quality of 80 kVp low-dose CTE for CD. |
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