压力和剪切波超声波弹性图形的比较评估,用于表征宫淋巴腺病变
Anil Rawat1, Siddharth Mishra2, Nitin Arun Dikshit1
1Department of Radiodiagnosis, King George's Medical University, Lucknow, IND.
Cureus
|February 2, 2026
概括
应变弹性学和剪切波弹性学 (SWE) 准确地区分良性和恶性宫淋巴结. 这些先进的超声波技术可以减少对侵入性诊断程序的需求.
科学领域:
- 医疗成像医学成像
- 诊断性的超声波检查
- 在瘤学瘤学.
背景情况:
- 宫淋巴腺病的诊断依赖于侵入性方法,如细针吸入细胞学和组织病理学.
- 传统的超声波在区分良性淋巴结和恶性淋巴结的特异性上有局限性.
- 弹性成像技术,包括应变和剪切波弹性成像 (SWE),评估组织硬度,这是已知的恶性瘤指标.
研究的目的:
- 评估应变弹性学和SWE在区分良性和恶性宫淋巴结的有效性.
- 为了比较弹性成像技术的诊断性能与传统的超声波方法.
主要方法:
- 一项涉及97个宫淋巴结的横截面研究,涉及5至60岁的患者.
- 使用B模式超声波,颜色多普勒,应变比和SWE进行评估,基因病理学/细胞学作为参考标准.
- 采用接收器操作特征 (ROC) 分析来确定诊断准确性.
主要成果:
- 恶性节点的平均弹性 (72.06 kPa) 和应变比 (2.30) 与良性节点 (9.23 kPa和1.18分别) 相比较高.
- SWE显示了100%的灵敏度和85%的特异性,截止速度为2.195m/s (AUC=0.940).
- 菌株比达到91.5%的灵敏度和99%的特异性,截止值为1.465 (AUC = 0.956).
结论:
- 当与常规超声波一起使用时,应变弹性学和SWE在诊断宫淋巴结病理方面提供了高准确度.
- 这些非侵入性弹性图法可能会减少侵入性诊断程序的必要性.
- 弹性图提供了有价值的定量度信息,以改善淋巴结的特征.
更多相关视频
05:56Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
Published on: August 29, 2025
574
12:18Magnetic Resonance Elastography Methodology for the Evaluation of Tissue Engineered Construct Growth
Published on: February 9, 2012
12.9K
相关概念视频
Shearing Strain
1.4K
The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between the...
1.4K
Elastic Strain Energy for Shearing Stresses
516
As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
516
The Wave Nature of Light
61.3K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
61.3K
Shear Diagram
1.7K
In the study of beam mechanics, shear diagrams play a crucial role in understanding the distribution of shear forces along the length of a beam. Consider a beam AB that is supported at both ends and subjected to perpendicular loads.
First, a free-body diagram of the beam is drawn, representing all the external forces and internal reactions acting on the beam. One can calculate the reaction forces at each support by employing the equilibrium equations of force and moment. The vertical component...
First, a free-body diagram of the beam is drawn, representing all the external forces and internal reactions acting on the beam. One can calculate the reaction forces at each support by employing the equilibrium equations of force and moment. The vertical component...
1.7K
Shearing Stress
2.0K
Shearing stress, denoted by the Greek letter tau (τ), is stress caused by forces acting transversely on an object. These forces create internal ones within the entity in the plane where the external forces are applied. The resultant of these internal forces is the shear in the section.
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.
2.0K
Ultrasound II: Endoscopic Ultrasound and FibroScan
691
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
691
