在急性心肌炎中,光子计数CT衍生的细胞外体积:与心脏MRI相比
Christos Gkizas1, Benjamin Longere2, Olga Sliwicka1
1Department of Cardiovascular Imaging, Heart and Lung Institute, University Hospital of Lille, 59000 Lille, France.
Diagnostic and interventional imaging
|March 18, 2025
概括
双源光子计数检测器CT (PCD-CT) 准确量化心肌细胞外体积 (ECV) 使用晚期增强. 这种方法对用低剂量辐射诊断急性心肌炎有前途.
科学领域:
- 心血管成像 - 心血管成像
- 放射学 放射学是一门学科.
- 医学物理 医学物理
背景情况:
- 诊断急性心肌炎往往依赖于心脏MRI,这可能是耗时且难以获得的.
- 精确评估心肌细胞外体积 (ECV) 对于诊断和管理心肌炎至关重要.
- 需要新的成像技术来提高心肌炎评估的效率和准确性.
研究的目的:
- 评估ECV量化的可行性和准确性,使用双源光子计数探测器CT (PCD-CT) 与晚期增强.
- 在疑似急性心肌炎的患者中,将PCD-CT的ECV测量与心脏MRI测量进行比较.
- 为了评估PCD-CT衍生ECV用于心肌炎的诊断性能.
主要方法:
- 在24小时内对怀疑心肌炎的患者进行冠状动脉CT血管造影 (CCTA) 进行PCD-CT和心脏MRI后期分析.
- 电脑心电量是根据图在晚期增强PCD-CT图像上的图计算的.
- 心脏MRI作为心肌炎诊断的参考标准 (路易斯湖2018年标准).
- 评估了PCD-CT和心脏MRIECV测量之间的相关性和一致性.
主要成果:
- 在PCD-CT (29.4%) 和心脏MRI (30.0%) (P=0.69) 之间,全球ECV没有显著差异.
- 与对照组 (25.6%) 相比,心肌炎患者 (31.65%) 的ECV-CT显著更高 (P<0.01).
- 在ECV-CT和LGE质量 (r=0.82) 和细分ECV-MRI (r=0.95) 之间观察到强烈的相关性.
- 在ECV-CT值为26.9%时,肌心炎诊断的AUC为0.95.
结论:
- 使用晚期增强心脏PCD-CT进行ECV计算是可行的和准确的.
- PCD-CT提供了低辐射剂量,非侵入性方法用于ECV量化.
- PCD-CT是评估急性心肌炎的一种有前途的方法.
更多相关视频
12:15Tissue Preparation Techniques for Contrast-Enhanced Micro Computed Tomography Imaging of Large Mammalian Cardiac Models with Chronic Disease
Published on: February 8, 2022
2.4K
11:09High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
Published on: December 16, 2022
2.9K
相关概念视频
01:20Imaging Studies for Cardiovascular System III: X-Ray
118
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
118
01:24Magnetic Resonance Imaging
4.9K
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...
4.9K