深度学习图像重建在 submillisievert CT 的价值,用于评估女性骨盆
1Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
Clinical radiology
|August 24, 2023
概括
深度学习重建 (DLR) 对女性骨盆低剂量计算机断层扫描 (CT) 是可行的,提供与标准剂量扫描相比的图像质量和诊断信心. 由于其有利的外观,推使用DLR (体) 临床使用.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 人工智能在医学中的应用
背景情况:
- 标准剂量计算断层扫描 (CT) 涉及显著的辐射暴露.
- 低剂量CT (LDCT) 技术旨在降低辐射剂量,同时保持诊断图像质量.
- 深度学习重建 (DLR) 是CT图像重建的一个新兴技术.
研究的目的:
- 为了评估深度学习重建 (DLR) 对女性骨盆的亚米尔西维特 (亚mSv) 计算机断层扫描 (CT) 的有效性.
- 将DLR图像与标准剂量 (SD) 混合代重建 (IR) 图像进行比较.
- 用DLR评估LDCT的图像质量,辐射剂量和诊断信心.
主要方法:
- 50名女性患者接受了对比度增强的腹腔皮层CT.
- 低剂量 (LD) 盆腔图像在msv以下的水平 (噪声指数15) 获得,并使用DLR (身体和身体利),混合IR和基于模型的IR (MBIR) 重建.
- 标准剂量 (SD) 图像使用混合-IR (噪声指数7.5) 进行了重建. 分析和比较了辐射剂量,定量和整体图像质量,图像外观和病变检测.
主要成果:
- 与SD检查相比,sub-mSvCT检查实现了CT剂量指数体积的61.09%降低.
- 在LD图像中,DLR (body sharp) 显示了最高的定量质量,其次是DLR (body),MBIR和混合IR.
- LD DLR (body) 显示的整体图像质量和外观与SD混合IR相比,对病变评估的诊断信心相似.
结论:
- 深度学习重建 (DLR) 算法对submillisievert腹腔皮层CT是可行的,产生与标准剂量扫描相比的图像质量和诊断信心.
- 由于其有利的图像外观,推使用DLR (body) 算法进行临床应用.
- 具有DLR的亚mSvCT代表了减少女性骨盆成像辐射剂量的重大进展.
相关概念视频
01:27Imaging Studies III: Computed Tomography
26
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
26
01:14Imaging Studies I: CT and MRI
276
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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...
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...
276
01:10Computed Tomography
4.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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...
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...
4.6K