相关实验视频

Updated: May 24, 2025

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

关于执行射频超声波多谱测量 (REMS) 评估的建议实践参数

Kimberly Zambito¹, Yevgeniya Kushchayeva², Andrew Bush³

¹St Luke's University Health Network, Bethlehem, Pennsylvania, USA.

Bone & joint open

|March 6, 2025

概括

射频超声波多谱仪 (REMS) 提供精确的骨矿物密度评估,相当于DXA. 将REMS与脆弱性信息相结合,可以提高骨折预测能力,而不仅仅是骨骨,有助于手术规划.

科学领域:

整形外科整形外科整形外科
放射学放射学是一门学科.
生物医学工程生物医学工程

背景情况:

骨健康评估依赖于准确,可重复的测试.
双能X射线吸收计 (DXA) 是骨矿物密度 (BMD) 的标准,但有其局限性.
像定量CT (q-CT),MRI和外围定量超声波 (QUS) 这样的替代技术具有不同程度的准确性和预后价值.

研究的目的:

引入射频超声波多谱法 (REMS) 作为一种用于轴 BMD 评估的新型超声波技术.
为了突出REMS的准确性,对DXA的等价性,以及评估骨架构质量的能力.
强调REMS在手术规划中对骨科外科医生的临床意义.

主要方法:

雷姆斯利用超声波技术在轴部部位进行骨质量评估.
将REMS精度与质量保证的DXA扫描进行比较.
评估REMS评估骨架构和预测骨折风险的能力.

主要成果:

雷姆斯显示的准确性相当于质量保证的DXA,用于轴 BMD.
雷姆斯提供骨架构质量的评估,这是一个超越骨质量的一个因素.
使用REMS,整合BMD和脆弱性信息进行骨折预测,比单独使用BMD更准确.

结论:

雷姆斯为骨健康评估提供新一代超声波技术.
雷姆斯提供准确的BMD测量和宝贵的骨架构洞察力.
这项技术在手术规划和骨折风险评估方面为整形外科医生提供了显著的价值.

更多相关视频

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

Published on: March 3, 2023

相关概念视频

Ultrasound II: Endoscopic Ultrasound and FibroScan

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):

Imaging Studies for Cardiovascular System I:Echocardiography

Imaging Studies for Cardiovascular System I:Echocardiography

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,...

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.