Related Experiment Video

Updated: Feb 14, 2026

Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit
06:11

Arterial Pouch Microsurgical Bifurcation Aneurysm Model in the Rabbit

Published on: May 14, 2020

2.9K

Morphological characteristics associated with the rupture risk of mirror posterior communicating artery aneurysms

Guang-Xian Wang1, Jun Liu2, You-Qiang Chen3

  • 1Department of Radiology, Xinqiao Hospital, Third Military Medical University, Chongqing, China.

Journal of Neurointerventional Surgery
|February 14, 2018
PubMed
Abstract

Insights

Aspect ratio (AR) and size ratio (SR) are key predictors for ruptured posterior communicating artery aneurysms (PComAAs). These morphological parameters, specifically AR ≥ 0.98 and SR ≥ 1.21, can help identify rupture risk in PComAAs.

Area of Science:

  • Neurosurgery
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Intracranial aneurysms (IAs) pose a rupture risk.
  • Patient-related factors and IA location can introduce bias in rupture risk studies.
  • Mirror posterior communicating artery aneurysms (PComAAs) offer a specific model for investigating rupture.

Purpose of the Study:

  • To identify morphological parameters associated with the rupture of mirror PComAAs.
  • To differentiate between ruptured and unruptured PComAAs based on morphology.

Main Methods:

  • CT angiography was used to diagnose 68 patients with mirror PComAAs.
  • Morphological characteristics including aspect ratio (AR) and size ratio (SR) were analyzed.
  • Logistic regression and ROC curve analysis identified independent risk factors and optimal thresholds.

Main Results:

  • Aspect ratio (AR) and size ratio (SR) were significantly associated with ruptured PComAAs.
  • The optimal thresholds for AR and SR predicting rupture were 0.98 and 1.21, respectively.
  • AR (OR 5.623) and SR (OR 5.570) showed strong predictive value.

Conclusions:

  • Mirror PComAAs serve as a valuable model for studying PComAA rupture risk.
  • AR (≥0.98) and SR (≥1.21) are robust predictors of PComAA rupture.
  • Morphological analysis of PComAAs can aid in assessing rupture potential.
Keywords:
aneurysmct angiography

More Related Videos

Fluorescence Angiography for Evaluation of Aneurysm Perfusion and Parent Artery Patency in Rat and Rabbit Aneurysm Models04:08

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

Published on: July 24, 2019

7.5K
Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects07:34

Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects

Published on: May 11, 2011

14.6K

Related Concept Videos

Communication01:03

Communication

Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
8.8K
Communication01:28

Communication

Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
11.8K
Characteristics of Life01:23

Characteristics of Life

Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
263.5K
Relative Risk01:12

Relative Risk

Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
2.2K
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

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...
443
Neuronal Communication01:28

Neuronal Communication

Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
3.6K