Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Angular Momentum: Rigid Body01:11

Angular Momentum: Rigid Body

The total angular momentum of a rigid body can be calculated using the summation of the angular momentum of all the tiny particles rotating in the same plane. Considering all the tiny particles rotating in the x-y plane, the direction of angular momentum of all such particles and that of the rigid body would be perpendicular to the plane of the rotation along the z-axis.
This calculation can get complicated when tiny particles within the rigid body are not rotating in the same plane but have...
Buoyancy01:12

Buoyancy

When an object is placed in a fluid, it either floats or sinks. All objects in a fluid experience a buoyant force. For example, a metal ball sinks, while a rubber ball floats. Similarly, a submarine can sink and float by adjusting its buoyancy.  The concept of buoyancy raises several interesting questions. For instance, where does this buoyant force come from? How much buoyant force is required to make an object sink or float? Do objects that sink get any support at all from the fluid? 
To get...
Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

Newton's law of gravitation describes the gravitational force between any two point masses. However, for extended spherical objects like the Earth, the Moon, and other planets, the law holds with an assumption that masses of spherical objects are concentrated at their respective centers.
This assumption can be proved easily by showing that the expression for gravitational potential energy between a hollow sphere of mass (M) and a point mass (m) is the same as it would be for a pair of extended...
Escape Velocities of Gases01:19

Escape Velocities of Gases

To escape the Earth's gravity, an object near the top of the atmosphere at an altitude of 100 km must travel away from Earth at 11.1 km/s. This speed is called the escape velocity. The temperature at which gas molecules attain the rms speed, which is equal to the escape velocity, can be estimated by using the equation for the average kinetic energy of the gas molecules. According to the kinetic theory of gas, the average kinetic energy of the gas molecules is proportional to its temperature.
Three-Dimensional Force System01:30

Three-Dimensional Force System

In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
Excess Pressure Inside a Drop and a Bubble01:13

Excess Pressure Inside a Drop and a Bubble

The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Patient selection for complex, high-risk indicated percutaneous coronary intervention procedures: an overview.

European heart journal supplements : journal of the European Society of Cardiology·2026
Same author

Optimizing protected PCI strategies in the setting of chronic kidney disease and advanced coronary artery disease: a clinical case-based discussion.

European heart journal supplements : journal of the European Society of Cardiology·2026
Same author

Comparative Outcomes of Ultrasound-Assisted Thrombolysis and Mechanical Thrombectomy in Intermediate-High-Risk Pulmonary Embolism.

Journal of clinical medicine·2026
Same author

Impact of Strut Thickness for Patients Treated With Percutaneous Revascularization for Coronary Bifurcations: Insights From the BIFURCAT-ULTRA Registry.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2026
Same author

Optimizing Anticoagulation Therapy when Utilizing Mechanical Circulatory Support Devices.

Interventional cardiology clinics·2026
Same author

Letter by Iannaccone and Balducci Regarding Article, "Calcium Modification After Orbital Atherectomy and Balloon Angioplasty in Severely Calcified Lesions: The ECLIPSE OCT Substudy".

Circulation. Cardiovascular interventions·2026
Same journal

Giornale italiano di cardiologia (2006)·2026
Same journal

[Green paper ANMCO: Environmental sustainability in cardiology: a shared commitment of healthcare professionals].

Giornale italiano di cardiologia (2006)·2026
Same journal

[Bempedoic acid in real-world clinical practice: baseline and 8-week data from the Italian prospective, non-interventional MILOS study].

Giornale italiano di cardiologia (2006)·2026
Same journal

[Ranolazine: established indications and emerging therapeutic potential].

Giornale italiano di cardiologia (2006)·2026
Same journal

[Kawasaki disease: the update of American Heart Association guidelines. What adult cardiologists need to know].

Giornale italiano di cardiologia (2006)·2026
Same journal

[The application of artificial intelligence in arrhythmology].

Giornale italiano di cardiologia (2006)·2026
查看所有相关文章

相关实验视频

Updated: Jun 20, 2026

Assessment of Ex Vivo Murine Biventricular Function in a Langendorff Model
07:54

Assessment of Ex Vivo Murine Biventricular Function in a Langendorff Model

Published on: December 23, 2022

2.0K

[修改的拥抱气球技术]

Claudio Moretti, Riccardo Mangione, Giacomo Giovanni Boccuzzi1

  • 1S.C. Cardiologia, Ospedale S.G. Bosco, ASL Città di Torino, Torino.

Giornale italiano di cardiologia (2006)
|November 26, 2024
PubMed
概括
此摘要是机器生成的。

静脉内 (IVL) 有效地治疗了大冠状动脉中严重的化静脉静脉缩 (ISR). 这种方法在复杂的情况下改善了支架扩张,为耐火ISR提供了有希望的解决方案.

更多相关视频

Author Spotlight: Developing Cost-Effective and Customizable Balloon Tags for Fish Passage Studies
07:41

Author Spotlight: Developing Cost-Effective and Customizable Balloon Tags for Fish Passage Studies

Published on: October 13, 2023

1.6K
Author Spotlight: A Novel Standardized Technique for Real-Time Biomedical Imaging of Acute Myocardial Injury
07:17

Author Spotlight: A Novel Standardized Technique for Real-Time Biomedical Imaging of Acute Myocardial Injury

Published on: March 22, 2024

952

相关实验视频

Last Updated: Jun 20, 2026

Assessment of Ex Vivo Murine Biventricular Function in a Langendorff Model
07:54

Assessment of Ex Vivo Murine Biventricular Function in a Langendorff Model

Published on: December 23, 2022

2.0K
Author Spotlight: Developing Cost-Effective and Customizable Balloon Tags for Fish Passage Studies
07:41

Author Spotlight: Developing Cost-Effective and Customizable Balloon Tags for Fish Passage Studies

Published on: October 13, 2023

1.6K
Author Spotlight: A Novel Standardized Technique for Real-Time Biomedical Imaging of Acute Myocardial Injury
07:17

Author Spotlight: A Novel Standardized Technique for Real-Time Biomedical Imaging of Acute Myocardial Injury

Published on: March 22, 2024

952

科学领域:

  • 心血管医学 心血管医学
  • 干预心脏病学 干预心脏病学
  • 医疗器械 医疗器械

背景情况:

  • 穿皮冠状动脉干预 (PCI) 已经推进了冠状动脉疾病的治疗.
  • 静脉静脉复缩 (ISR),特别是化ISR,是一个重大的临床挑战.
  • 现有的化ISR处理方法存在局限性,特别是在大型容器中.

研究的目的:

  • 报告一个具有挑战性的病例,在一条大冠状动脉中出现了非常晚期化的ISR.
  • 要突出诊断和干预考虑管理复杂的化ISR.
  • 评估静脉内石 (IVL) 在耐火性化ISR的疗效.

主要方法:

  • 一名患有ST升高心肌梗塞的患者呈现出严重的晚期化ISR.
  • 由于广泛的化,最初的干预未能充分扩展支架.
  • 冲击波石术 (IVL) 与不符合要求的气球相结合,用于实现血管准备和最佳支架扩张.

主要成果:

  • 结合IVL和气球血管整形的方法成功地解决了严重的支架不扩张问题.
  • 在一个大冠状动脉中实现了最佳的支架扩张,有广泛的化.
  • 该干预措施在这种耐火化ISR病例中显示出潜在的有效性.

结论:

  • 静脉内石是一种有前途的选择,用于管理复杂的,化静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉静脉
  • 整合IVL等创新技术的定制治疗策略至关重要.
  • 这一案例凸显了IVL在耐火ISR案例中的潜力,在传统方法失败的情况下.