基于深度学习的重建改善了炎症性肠病患者的低剂量CT肠道图像质量
Weitao He1, Ping Xu1, Mengchen Zhang1
1First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
深度学习重建 (DLR) 显著降低了炎症性肠病 (IBD) 患者的CT肠镜中辐射剂量. 此外,DLR还提高了图像质量和诊断性能,为终身监控提供了更安全的替代方案.
科学领域:
- 放射学和成像学 放射学和成像学
- 医学物理 医学物理
- 胃肠病学 胃肠病学
背景情况:
- 对炎症性肠病 (IBD) 的终身监测通常需要重复CT肠道图 (CTE).
- 减少连续CTE检查的累积辐射暴露对于IBD患者来说是一个关键的临床问题.
研究的目的:
- 评估深度学习重建 (DLR) 在IBD的低剂量CT肠道学 (LDCTE) 中的疗效.
- 评估DLR对降低辐射剂量和改善CTEIBD患者的图像质量的影响.
主要方法:
- 分析了前性LDCTE (n=36) 和后性标准剂量CTE (STDCTE,n=40) 的数据集.
- 使用自适应代剂量减小三维 (AIDR3D) 和DLR (高级智能ClearIQ引擎[AiCE]) 重建图像.
- 实际辐射剂量,图像噪声,信号噪声比 (SNR),图像质量和诊断性能进行了比较.
主要成果:
- 与STDCTE相比,LDCTE实现了有效辐射剂量减少54.1%.
- 虽然使用AIDR3D的LDCTE显示噪声增加和质量降低,但使用DLR (AiCE) 的LDCTE显著改善了SNR和诊断性能.
- 用DLR重建的图像显示的诊断性能与STDCTE相当或优于STDCTE,AUC高达0.83.
结论:
- 低剂量CT肠道学与深度学习重建相结合,有效地减少IBD患者的辐射暴露.
- DLR显著提高图像质量和诊断性能,使其成为安全,长期IBD监测的有希望的技术.
更多相关视频
07:05Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation
Published on: December 15, 2017
09:42Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation
Published on: August 26, 2014
相关概念视频
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Ultrasonography
During an ultrasonography procedure, a handheld device called...
Lower GI Series: Barium Enema
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
