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

Correlations02:20

Correlations

36.4K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
36.4K
Correlation and Causation01:27

Correlation and Causation

42.8K
Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
42.8K
Correlation01:09

Correlation

15.2K
In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
15.2K
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

431
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
431
Wave Parameters01:10

Wave Parameters

9.4K
The simplest mechanical waves are associated with simple harmonic motion and repeat themselves for several cycles. These simple harmonic waves can be modeled using a combination of sine and cosine functions. Consider a simplified surface water wave that moves across the water's surface. Unlike complex ocean waves, in surface water waves, water moves vertically, oscillating up and down, whereas the disturbance of the wave moves horizontally through the medium. If a seagull is floating on the...
9.4K
Marcia's Theory of Identity Status01:26

Marcia's Theory of Identity Status

1.7K
James Marcia's identity status model provides a framework for understanding how adolescents navigate identity formation through varying degrees of exploration and commitment. Marcia's model builds on Erik Erikson's theories of psychosocial development, focusing specifically on how adolescents reconcile individual aspirations with societal expectations. His model describes identity formation as a dynamic process where adolescents move between different states depending on their level...
1.7K

You might also read

Related Articles

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

Sort by
Same journal

Numerical Analysis of Postoperative Rehabilitation of Femoral Neck Fracture: Coupling of Vascular Growth, Bone Remodeling, and the Effect of Electrical Stimulation.

International journal for numerical methods in biomedical engineering·2026
Same journal

Hemodynamic Metrics and Arterial Dysfunction: Insights From a Novel Microfluidic Device.

International journal for numerical methods in biomedical engineering·2026
Same journal

Biomechanical Analysis on Vibration Characteristics of Lumbar Spine Using a Whole Human Body Finite Element Model.

International journal for numerical methods in biomedical engineering·2026
Same journal

Sequential Balloon Modeling for Robust Percutaneous Transluminal Angioplasty Simulation.

International journal for numerical methods in biomedical engineering·2026
Same journal

Functional and Structural Analysis of Auxetic Metamaterial Stent Designs for Thoracic Aortic Aneurysms Using Finite Element Simulation.

International journal for numerical methods in biomedical engineering·2026
Same journal

Dynamic Simulation of Male Bladder Outlet Obstruction: Flow Characteristics and Novel Quantitative Indicators.

International journal for numerical methods in biomedical engineering·2026

Related Experiment Video

Updated: Feb 7, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
18:50

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Published on: September 25, 2009

14.1K

Correlation of flow complexity parameter with aneurysm rupture status.

Simona Hodis1

  • 1Department of Mathematics, Texas A&M University-Kingsville, Kingsville, Texas.

International Journal for Numerical Methods in Biomedical Engineering
|July 19, 2018
PubMed
Summary

A new flow complexity parameter reveals ruptured cerebral aneurysms have more concentrated jets and complex non-jet flow patterns compared to unruptured ones, aiding rupture risk assessment.

Keywords:
cerebral aneurysmflow complexity parameterkinematic curvaturekinematic torsionrupture risk

More Related Videos

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models
04:08

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models

Published on: July 24, 2019

7.5K
Author Spotlight: Enhanced Murine AAA Model Using Elastase to Mimic Human Aneurysms
07:42

Author Spotlight: Enhanced Murine AAA Model Using Elastase to Mimic Human Aneurysms

Published on: July 26, 2024

2.8K

Related Experiment Videos

Last Updated: Feb 7, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
18:50

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Published on: September 25, 2009

14.1K
Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models
04:08

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models

Published on: July 24, 2019

7.5K
Author Spotlight: Enhanced Murine AAA Model Using Elastase to Mimic Human Aneurysms
07:42

Author Spotlight: Enhanced Murine AAA Model Using Elastase to Mimic Human Aneurysms

Published on: July 26, 2024

2.8K

Area of Science:

  • Biomedical Engineering
  • Fluid Dynamics
  • Medical Imaging

Background:

  • Cerebral aneurysms exhibit complex flow dynamics, but quantifiable measures for flow complexity related to rupture remain elusive.
  • Previous work introduced a flow complexity parameter based on flow field curvature and torsion.

Purpose of the Study:

  • To derive an analytic solution for the flow complexity parameter.
  • To evaluate the correlation between this parameter and cerebral aneurysm rupture status.
  • To analyze flow complexity in jet and non-jet regions of patient-specific aneurysms.

Main Methods:

  • Analysis of five ruptured and five unruptured anterior communicating artery aneurysms.
  • Application of the flow complexity parameter to jet and non-jet flow regions.
  • Correlation analysis between flow complexity and dome volume.

Main Results:

  • Ruptured aneurysms showed significantly less complex jet regions (4.5x) and more complex non-jet regions (3.5x) compared to unruptured ones.
  • A strong positive correlation was observed between non-jet complexity and dome volume in ruptured aneurysms.
  • No correlation was found between jet complexity and dome volume in ruptured cases.

Conclusions:

  • Ruptured aneurysms exhibit highly concentrated inflow jets and intricate non-jet flow patterns.
  • The developed kinematic parameter offers a measurable assessment of flow complexity in cerebral aneurysms.
  • This parameter shows potential for improved evaluation of aneurysm rupture risk.