虚拟骨活检:延时高分辨率外围定量计算机断层扫描提供非侵入性的骨综合评估
Minhao Zhou1, Thomas L Nickolas2, Joachim H Ix3,4
1Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA.
Current opinion in nephrology and hypertension
|February 10, 2026
概括
延时高分辨率外围定量计算断层扫描 (HR-pQCT) 提供了一种非侵入性方法来评估骨重塑的动态,密度和强度. 这种虚拟骨活检方法有助于了解慢性疾病中的骨并发症.
科学领域:
- 整形外科和骨生物学
- 医学成像和诊断 医学成像和诊断
- 内分泌学和心血管健康
背景情况:
- 骨并发症在慢性内分泌和心血管疾病中具有重要意义.
- 针对患者的综合性骨评估对于了解疾病机制和指导治疗至关重要.
- 高分辨率的外围定量计算断层扫描 (HR-pQCT) 提供了详细的体内骨分析.
研究的目的:
- 引入和倡导更广泛地实施时间缩短HR-pQCT进行全面的骨评估.
- 突出时间缩短HR-pQCT在评估骨重塑动态,密度,几何,微型架构和生物力学方面的能力.
- 将时间间隔HR-pQCT定位为可靠的,非侵入性的"虚拟骨活检".
主要方法:
- 利用与HR-pQCT集成的时间间隔分析来跟踪随着时间的推移在voxel水平的骨变化.
- 长度监测骨重塑过程的非侵入性方法.
- 在体内骨评估在临床前研究中得到验证,最近在临床环境中应用.
主要成果:
- 时间间隔HR-pQCT已经证明了在慢性病患者的骨周转率评估中的可行性.
- 临床研究表明,其在治疗和机械负荷的反应中绘制骨/损失的实用性.
- 在体内骨评估的时间间隔分析的临床前验证已经存在了二十年.
结论:
- 时间间隔HR-pQCT可进行骨参数的全面评估和纵向监测.
- 建议进行更广泛的实施,这取决于严格的验证和方法优化.
- 这种技术为骨评估和监测提供了一种可靠的,非侵入性的方法.
更多相关视频
12:04Assessment of Bone Fracture Healing Using Micro-Computed Tomography
Published on: December 9, 2022
2.5K
04:24Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography
Published on: November 22, 2017
10.3K
相关概念视频
Computed Tomography
8.9K
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...
8.9K
Imaging Studies III: Computed Tomography
402
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...
402
What is the Skeletal System?
57.4K
Overview
57.4K
Virtual Work
1.4K
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
1.4K
Classification of Skeletal Muscle Fibers
59.6K
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
59.6K
Principle of Virtual Work: Problem Solving
1.7K
The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
To apply the principle of virtual work,...
1.7K
