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

[Departure map]

K Ikeda1

  • 1First Department of Internal Medicine, Yamagata University School of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|January 1, 1995
PubMed
Summary

Departure maps identify abnormalities on body surface potential maps by calculating a departure index. This technique aids in assessing conditions like myocardial infarction and hypertrophy.

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

Purification and amino-acid sequence of a nerve growth factor from the venom of Vipera russelli russelli.

Biochimica et biophysica acta·1992
Same author

Coexistence of paired helical filaments and glial filaments in astrocytic processes within ghost tangles.

Neuroscience letters·1992
Same author

[Clinical study on benefit and safety of frequent inhalation of aerosolized procaterol hydrochloride in aged acute asthmatics].

Nihon Kyobu Shikkan Gakkai zasshi·1992
Same author

Postoperative central conduction time and cerebral blood flow in patients with aneurysmal subarachnoid hemorrhage: relationship with prognosis and ischemic conditions.

Surgical neurology·1992
Same author

Acute myelocytic leukemia associated with thrombocytosis and inv 3(q21.3; q26.2) in a case of Grönbland-Strandberg syndrome.

Leukemia research·1992
Same author

[Examination of post operative split lung function using quantitative xenon 133 (133Xe) inhalation scan].

[Zasshi] [Journal]. Nihon Kyobu Geka Gakkai·1992

Area of Science:

  • Cardiovascular physiology
  • Medical imaging
  • Biopotential analysis

Context:

  • Body surface potential mapping (BSPM) is a non-invasive technique to record electrical activity of the heart.
  • Interpreting complex BSPM data requires robust analytical methods to detect subtle abnormalities.
  • Existing methods may lack sensitivity in localizing specific cardiac conditions.

Purpose:

  • To introduce and validate a novel method, 'departure maps,' for enhanced detection of BSPM abnormalities.
  • To standardize the analysis of various electrophysiological parameters derived from BSPM.
  • To improve the diagnostic accuracy for conditions such as myocardial infarction, hypertrophy, and ischemia.

Summary:

  • Departure maps are generated by calculating a departure index for each lead, using the mean (m) and standard deviation (SD) of measured values (x) as (x-m)/SD.
  • These maps visualize the spatial distribution of the departure index across the body surface.
  • Areas with a departure index greater than 2 or less than -2 are flagged as abnormal, indicating deviations from the norm.

Impact:

  • Departure maps offer a clear representation of the location and extent of abnormal electrical activity.
  • This technique facilitates the assessment of critical cardiac conditions, including myocardial infarction, ventricular hypertrophy, and ischemia.
  • The departure map methodology is versatile and applicable to a wide range of BSPM parameters, enhancing its clinical utility.

Related Experiment Videos