增强的心肌组织可视化:对梯度旋回回声STIR和传统STIR成像的心血管磁共振研究进行比较
Sadegh Dehghani1, Shapoor Shirani2, Elahe Jazayeri Gharebagh1
1Radiation Sciences Department, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
International journal of biomedical imaging
|April 9, 2024
概括
与传统的STIR相比,梯度旋转回声-STIR (GraSE-STIR) 序列改善了心血管MRI质量,并减少了扫描时间和文物. 这使得GraSE-STIR成为临床使用的有希望的工具.
科学领域:
- 心血管磁共振 (CMR) 图像成像
- 医学成像技术 医学成像技术
- 脉冲序列优化 脉冲序列优化
背景情况:
- 传统的基于轮旋转回声 (TSE) 的短tau反转恢复 (STIR) 序列在心血管磁共振 (CMR) 成像中被广泛使用.
- 优化CMR序列对于提高诊断准确性和患者舒适性至关重要.
- 评估像梯度旋转回声 (GraSE-) STIR这样的新型序列对于推进CMR技术至关重要.
研究的目的:
- 为了比较基于渐变旋转回声 (GraSE) 的短tau逆转恢复 (STIR) 序列与CMR成像中的常规TSE-STIR序列的疗效.
- 评估GraSE-STIR与传统STIR之间的图像质量,特定吸收率 (SAR) 和图像采集时间的差异.
- 确定GraSE-STIR在常规临床CMR应用中的潜力.
主要方法:
- 一项前性研究涉及44名健康志愿者和17名接受CMR成像的患者.
- 传统STIR和GraSE-STIR序列的比较.
- 对信号与噪声比 (SNR),对比与噪声比 (CNR),图像质量,T2信号强度 (SI) 比,SAR和图像采集时间的定量和定性评估.
主要成果:
- 与传统的STIR相比,GraSE-STIR显著改善了图像质量 (p=0.024) 并减少了心脏运动器件 (p=0.038).
- 格雷斯-STIR显著减少了采集时间 (p=0.041) 和局部干SAR (p=0.047).
- 两种序列之间的T2SI比率,SNR,CNR或整体SAR没有显著差异.
结论:
- 格拉斯-STIR比传统的STIR提供了显著的优势,包括增强的图像质量和减少的运动文物.
- 与GraSE-STIR相关的更短的获取时间和更低的SAR使其成为更高效和潜在的更安全的选择.
- 格雷斯-STIR显示出相当大的潜力,作为一种用于常规临床心血管磁共振成像的有价值技术.
相关概念视频
Imaging Studies for Cardiovascular System II:Types of Echocardiography
258
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
258
Magnetic Resonance Imaging
5.1K
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...
5.1K
Imaging Studies for Cardiovascular System I:Echocardiography
320
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
320
Imaging Studies I: CT and MRI
239
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...
239


