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 Experiment Videos

Ventricular excitation maps using tissue Doppler acceleration imaging: potential clinical application.

L X Yin1, C M Li, Q G Fu

  • 1Echocardiography Laboratory, Sichuan Provincial Hospital, Chengdu, PR China.

Journal of the American College of Cardiology
|March 18, 1999
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

[Atypical cellular blue nevus: report of a case].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2026
Same author

[Clinical characteristics of diarrhea caused by rotavirus A in children under 5 years old in China, 2009-2020].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2026
Same author

[Effect of <sup>131</sup>iodine therapy on parathyroid function in postoperative patients with papillary thyroid carcinoma].

Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery·2026
Same author

Real-world outcomes versus clinical trial results of first-line immunotherapy with or without chemotherapy in patients with metastatic non-small-cell lung cancer: the CORRELATE study.

ESMO open·2026
Same author

[Analysis of common non-bacterial pathogens in hospitalized children with acute respiratory infections: a multicenter study in four regions of Fujian Province in 2023].

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2025
Same author

[Analysis of the pathogen composition and epidemiological characteristics of febrile respiratory syndrome cases in the elderly aged 60 years and above in China from 2009 to 2021].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2025

Tissue Doppler acceleration imaging (TDAI) effectively visualizes ventricular contraction onset. This noninvasive method accurately identifies normal and abnormal ventricular acceleration sites in various cardiac conditions, aiding diagnosis.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Electrophysiology

Background:

  • Tissue Doppler acceleration imaging (TDAI) visualizes ventricular acceleration during myocardial contraction and electrical excitation.
  • TDAI provides data on the distribution, direction, and magnitude of these acceleration responses.

Purpose of the Study:

  • To validate the use of TDAI for assessing the onset of ventricular contraction in humans.
  • To evaluate TDAI's efficacy in localizing abnormal ventricular activation sites.

Main Methods:

  • TDAI was performed on 20 normal volunteers to establish normal ventricular acceleration onset.
  • Studies included patients with pacemakers, dual atrioventricular (AV) node, and Wolff-Parkinson-White (WPW) syndrome undergoing TDAI.
  • Results were compared with intracardiac electrophysiology (ICEP) findings in WPW syndrome patients.

Related Experiment Videos

Main Results:

  • Normal and dual AV node onset localized to the upper interventricular septum within 25 ms before the ECG R wave.
  • Pacer-induced acceleration onset precisely matched electrode positions in 100% of cases.
  • TDAI identified abnormal onset in WPW syndrome with 90% agreement to accessory pathway locations found by ICEP.

Conclusions:

  • TDAI is a valuable noninvasive tool for visualizing the intramural origin of ventricular mechanical contraction.
  • The findings support TDAI's utility in diagnosing conditions with abnormal ventricular activation patterns.