Related Experiment Video

Updated: Jun 19, 2025

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
11:04

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

Published on: September 1, 2014

11.2K

"Unkinking" the "Kink" Normalizes the Doppler Pattern

Elaina A Blickenstaff1, Michael O'Shea2, Timothy Barry3

  • 1Department of Biology, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA.

Diagnostics (Basel, Switzerland)
|July 27, 2024
PubMed

Insights

Coarctation of the aorta (CoA), a congenital heart defect, can be effectively treated with percutaneous stenting. This case study shows successful stenting normalized Doppler patterns in a young hypertensive male with CoA.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Interventional Cardiology

Background:

  • Coarctation of the aorta (CoA) is a significant congenital heart defect, accounting for 5-7% of all cases.
  • CoA can occur in isolation or with other cardiac abnormalities like bicuspid aortic valve or ventricular septal defects.
  • Diagnosis relies on echocardiography, supplemented by MRI or CT for detailed aortic assessment.

Purpose of the Study:

  • To present a case of successful percutaneous stenting for coarctation of the aorta.
  • To illustrate the diagnostic utility of echocardiography and Doppler in identifying and monitoring CoA.
  • To highlight the effectiveness of endovascular stenting in treating CoA in a young hypertensive patient.

Main Methods:

  • Echocardiography with Doppler for initial diagnosis and monitoring.
  • Percutaneous stenting as the intervention for aortic arch narrowing.
  • Clinical assessment including evaluation of cardiac murmurs and blood pressure.

Main Results:

  • A young male presented with a continuous cardiac murmur and confirmed CoA via echocardiography.
  • Percutaneous stenting was performed as treatment for the coarctation.
  • Post-stenting, Doppler patterns normalized, indicating successful repair.

Conclusions:

  • Percutaneous stenting is a viable and effective treatment for coarctation of the aorta.
  • Echocardiography remains a crucial tool for diagnosing and assessing the success of CoA interventions.
  • Prompt intervention can resolve hemodynamic abnormalities associated with CoA.

Keywords:
Doppler patterncoarctation of aortaechocardiographystent

More Related Videos

Blood Flow Imaging with Ultrafast Doppler05:57

Blood Flow Imaging with Ultrafast Doppler

Published on: October 14, 2020

7.6K
One-channel Cell-attached Patch-clamp Recording13:07

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

24.3K

Related Concept Videos

Doppler Effect - II01:05

Doppler Effect - II

The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
3.4K
Doppler Effect - I00:56

Doppler Effect - I

The Doppler effect and Doppler shift were named after the Austrian physicist and mathematician Christian Johann Doppler in 1842, who conducted experiments with both moving sources and moving observers. Consider an observer standing on a street corner, observing an ambulance with a siren sound passing by at a constant speed. The observer experiences two characteristic changes in the sound of the siren. Initially, the sound increases in loudness as the ambulance approaches and decreases in...
3.5K
Types of Damping01:20

Types of Damping

If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
6.4K
Nuclear Overhauser Enhancement (NOE)01:07

Nuclear Overhauser Enhancement (NOE)

Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling.  This phenomenon, called the Nuclear Overhauser Enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring...
649
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.0K
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.3K