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

Volume profiles obtained by a conductimetric method

M C Herrera1, M E Valentinuzzi, J M Olivera

  • 1Laboratorio de Bioingenieria, Facultad de Ciencias Exactas y Tecnologia, Universidad Nacional de Tucumán, Argentina.

Journal of Biomedical Engineering
|July 1, 1993
PubMed
Summary
This summary is machine-generated.

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

Rib quality assessment using quantitative ultrasound imaging of bone.

Ultrasonics·2026
Same author

Co-delivery of HIV pre-exposure prophylaxis (PrEP) and HIV testing among publicly insured adolescents and young adults (AYA) receiving medication for opioid use disorder (MOUD).

Drug and alcohol dependence·2024
Same author

Vascular Parameters for Ambulatory Monitoring of Congestive Heart Failure Patients: Proof of Concept.

Cardiovascular engineering and technology·2019
Same author

Do Subjective Alcohol Screening Tools Correlate with Biomarkers Among High-Risk Transgender Women and Men Who Have Sex with Men in Lima, Peru?

AIDS and behavior·2017
Same author

Impact of alcohol use on sexual behavior among men who have sex with men and transgender women in Lima, Peru.

Drug and alcohol dependence·2016
Same author

Design, fabrication and metrological evaluation of wearable pressure sensors.

Journal of medical engineering & technology·2015
Same journal

Comparative study of the function of the Abiomed polyurethane heart valve for use in left ventricular assist devices.

Journal of biomedical engineering·1993
Same journal

AZTDIS--a two-phase real-time ECG data compressor.

Journal of biomedical engineering·1993
Same journal

Validation of an automated method of three-dimensional finite element modelling of bone.

Journal of biomedical engineering·1993
Same journal

Three dimensional shape reconstruction and finite element analysis of femur before and after the cementless type of total hip replacement.

Journal of biomedical engineering·1993
Same journal

The Rancho EMG analyzer: a computerized system for gait analysis.

Journal of biomedical engineering·1993
Same journal

Preparation and in vivo evaluation of a newly developed bioglass ceramic.

Journal of biomedical engineering·1993
See all related articles

Salo's method improves intracardiac conductance volumetry by correcting non-uniform current distribution. Testing on simple shapes showed accurate volume profiles with an optimal exponent k=2, reducing errors.

Area of Science:

  • Biomedical Engineering
  • Electrical Impedance Tomography

Background:

  • Intracardiac conductance volumetry faces challenges with non-uniform current distribution.
  • Salo's method (1989) offers a potential solution for this current distribution issue.

Purpose of the Study:

  • To evaluate Salo's method for correcting non-uniform current distribution in intracardiac conductance volumetry.
  • To determine the optimal parameters for Salo's method using known geometric volumes.

Main Methods:

  • Simulated a conductance catheter using a plastic rod with metallic rings.
  • Measured resistance across five sections with a shifting current source.
  • Applied Salo's method by plotting sectional resistance against inverse source-to-section distance to the power of k.
  • Extrapolated to find corrected sectional resistance and analyzed for optimal k to minimize volume error.

Related Experiment Videos

Main Results:

  • Achieved accurate volume profiles for cylinders and a frustum using k=2 and linear distance definition.
  • Reported low volume errors: -3.49% (cylinder 1), -1.25% (cylinder 2), and -3.65% (frustum).
  • Determined the frustum angle with high accuracy (0.4 degrees, 2.7% error).

Conclusions:

  • Salo's method, with k=2 and linear distance, effectively corrects current distribution for accurate volumetry in simple geometries.
  • The study validates Salo's approach and provides an optimal parameter for its application.
  • Theoretical analysis suggests an inverse logarithmic relationship between k and source-to-section distance.