对磁共振成像进行质量控制 肝脏脂肪/铁量化研究:一个关键要求
Farid Hajibonabi1, Puneet Sharma, Amir H Davarpanah
1From the Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA.
Journal of computer assisted tomography
|September 14, 2023
概括
磁共振成像 (MR) 用于肝脂肪和铁量化具有很高的可预防错误率. 提高技术人员的表现和实施质量控制对于准确检测非酒精性脂肪肝疾病和铁过载至关重要.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 量化MRI是指数量化的MRI.
背景情况:
- 非酒精性脂肪肝疾病和铁过载可能会发展为肝硬化.
- 早期检测对于管理这些情况至关重要.
- 使用化学转移编码序列和单声素光谱 (SVS) 的磁共振成像是评估肝脂肪和铁含量的关键.
研究的目的:
- 在脂肪/铁MR量化研究中评估技术质量和识别技术人员性能缺陷.
- 评估化学转移编码序列 (q-Dixon,IDEAL-IQ) 和SVS对于肝脂肪/铁的评估的可接受性.
主要方法:
- 追溯审查87个脂肪/铁MR研究.
- 对q-Dixon/IDEAL-IQ (数据处理,覆盖范围,文物,运动) 的技术可接受性标准的评估.
- 评估SVS的可接受性 (数据处理,曲线适合,峰值分离,峰值清晰度).
主要成果:
- 11%的研究存在数据处理错误 (缺少地图/序列).
- 27%的q-Dixon/IDEAL-IQ研究是不可接受的,原因是不完整的现场覆盖,文物或运动.
- 28%的SVS序列是不可接受的,因为水峰很宽或曲线不合适.
结论:
- 脂肪/铁MR量化中可预防的错误率很高,需要进行常规的质量控制.
- 评估技术人员的表现和解决技术缺陷至关重要.
- 实施检查清单和例行审计可以提高研究质量.
更多相关视频
05:37Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI
Published on: October 20, 2023
1.4K
08:41Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease
Published on: March 24, 2023
1.2K
相关概念视频
01:24Magnetic Resonance Imaging
5.2K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
5.2K
01:14Imaging Studies I: CT and MRI
275
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...
275
01:21Imaging Studies for Cardiovascular System IV: CMRI
59
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
59