Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

1.5K
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
1.5K
Mass Moment of Inertia01:10

Mass Moment of Inertia

1.8K
The mass moment of inertia is a measure of the resistance of a rigid body to angular acceleration. This physical quantity can be evaluated and analyzed in various rotational motions, from everyday objects such as fans and wind turbines to complex machines used in challenging industries.
Consider a differential mass element on an arbitrary object. The differential moment of inertia can be calculated by multiplying the mass of the element by the square of its distance from the object's rotational...
1.8K
Units of Measurement01:27

Units of Measurement

5.7K
Mechanical engineering is one of the oldest branches of engineering. It deals with designing, analyzing, and manufacturing machines and mechanical systems. To ensure precise and accurate calculations, units of measurement are used. They provide a standard system for expressing and comparing physical quantities.
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...
5.7K
Journal Bearings01:23

Journal Bearings

1.5K
Journal bearings are mechanical components that support and provide lateral stability to rotating shafts and axles. They are crucial in reducing friction, wear, and vibration in machinery such as engines, turbines, and pumps. The principle behind journal bearings is forming a thin lubricant film between the bearing surface and the rotating shaft, which minimizes direct contact and reduces frictional forces.
To better understand the concept of journal bearings, consider a rope winch with dry or...
1.5K
Mechanical Systems01:22

Mechanical Systems

869
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
869
Product of Inertia for an Area01:13

Product of Inertia for an Area

1.0K
Mechanical engineering involves making use of correct calculations to ensure that machines and structures are sturdy and long-lasting. One such calculation is the product of inertia for an area. It is a measure of how the mass of a structure is distributed around its centroid. It determines the structure's ability to resist rotational forces and affects the magnitude and direction of the stresses it experiences when subjected to external forces.
To calculate the product of inertia for any...
1.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Bridging heart failure clinic-based guideline-directed medical therapy optimization and real-world practice in heart failure with reduced ejection fraction (HFrEF).

ESC heart failure·2026
Same author

Incidence and clinical implications of aortic root thrombosis in LVAD patients: A single-center experience.

Turk gogus kalp damar cerrahisi dergisi·2026
Same author

Clinical Approaches in Heart Failure: Perspectives of Cardiologists in Türkiye (HF-PERSPECTIVE).

The American journal of cardiology·2026
Same author

A novel strategy for left ventricular interventions in patients with double mechanical valves: Stylet-driven lead-guided transventricular access.

Heart rhythm·2025
Same author

A Case of Double-Inlet Left Ventricle Reaching Adulthood Without Surgery.

Turk Kardiyoloji Dernegi arsivi : Turk Kardiyoloji Derneginin yayin organidir·2025
Same author

Ventricular preexcitation in hypertrophic cardiomyopathy: Coincidence, clue, or concern?

Journal of electrocardiology·2025

Related Experiment Video

Updated: Apr 14, 2026

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
08:58

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Published on: December 2, 2022

4.0K

Mechanical index.

Taner Şen1, Omaç Tüfekçioğlu, Yavuzer Koza

  • 1Department of Cardiology, Kütahya Evliya Çelebi Education and Research Hospital, Dumlupınar University; Kütahya-Turkey. medicineman_tr@hotmail.com.

Anatolian Journal of Cardiology
|April 17, 2015
PubMed
Summary
This summary is machine-generated.

Mechanical Index (MI) is a key acoustic power measure. Adjusting MI allows echocardiographers to utilize diverse contrast-specific imaging during echocardiography.

More Related Videos

The Quantification of Injectability by Mechanical Testing
04:46

The Quantification of Injectability by Mechanical Testing

Published on: May 13, 2020

8.9K
Experimental and Data Analysis Workflow for Soft Matter Nanoindentation
13:04

Experimental and Data Analysis Workflow for Soft Matter Nanoindentation

Published on: January 18, 2022

5.1K

Related Experiment Videos

Last Updated: Apr 14, 2026

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
08:58

Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid

Published on: December 2, 2022

4.0K
The Quantification of Injectability by Mechanical Testing
04:46

The Quantification of Injectability by Mechanical Testing

Published on: May 13, 2020

8.9K
Experimental and Data Analysis Workflow for Soft Matter Nanoindentation
13:04

Experimental and Data Analysis Workflow for Soft Matter Nanoindentation

Published on: January 18, 2022

5.1K

Area of Science:

  • Ultrasound Physics
  • Medical Imaging Technology

Background:

  • Mechanical Index (MI) quantifies acoustic power in ultrasound.
  • MI is often overlooked in standard echocardiographic procedures.
  • MI adjustment is crucial for advanced imaging techniques.

Purpose of the Study:

  • To highlight the significance of Mechanical Index in echocardiography.
  • To explain how MI facilitates contrast-specific imaging modalities.
  • To underscore the versatility offered by MI adjustment.

Main Methods:

  • Review of echocardiographic principles and acoustic power metrics.
  • Analysis of MI's role in different ultrasound imaging modes.
  • Discussion of practical applications of MI adjustment in clinical settings.

Main Results:

  • Mechanical Index is a critical parameter for controlling acoustic power.
  • MI adjustment enables the seamless integration of contrast-enhanced ultrasound (CEUS) techniques.
  • Echocardiographers can optimize imaging by dynamically altering MI settings.

Conclusions:

  • Understanding and manipulating Mechanical Index is essential for advanced echocardiography.
  • MI adjustment enhances the diagnostic capabilities of ultrasound examinations.
  • MI optimization broadens the scope of echocardiographic applications, particularly with contrast agents.