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Imaging Studies for Cardiovascular System V: CT01:28

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Related Experiment Video

Updated: Jun 21, 2026

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

Classical Hartmann test with scanning.

Rufino Díaz-Uribe1, Fermín Granados-Agustín, Alejandro Cornejo-Rodríguez

  • 1Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, CP 04510 México, DF, México. rufino.diaz@ccadet.unam.mx

Optics Express
|August 6, 2009
PubMed
Summary
This summary is machine-generated.

Scanning pupil images during the Hartmann test increases evaluation points. This method, using radial or square screens, enhances the test

Related Experiment Videos

Last Updated: Jun 21, 2026

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

Area of Science:

  • Ophthalmology
  • Optical Engineering

Background:

  • The Hartmann test is a standard method for evaluating optical systems.
  • Increasing evaluation points in the Hartmann test can improve accuracy.

Purpose of the Study:

  • To propose a scanning method for the Hartmann test to increase evaluation points.
  • To investigate the design of radial and square screens for scanning.
  • To assess the impact of scanning on the test's lateral resolution.

Main Methods:

  • Implementing a scanning technique across the pupil during the Hartmann test.
  • Designing and utilizing radial screens (rotated scan) and square screens (linear inclined scan).
  • Acquiring multiple bright spot images at different scan steps.

Main Results:

  • The scanning method successfully generates numerous evaluation points.
  • Radial screens are scanned via rotation; square screens use linear inclined scans.
  • Square screens demonstrably improve the lateral resolution of the Hartmann test.

Conclusions:

  • Scanning screens across the pupil is an effective way to increase Hartmann test evaluation points.
  • Both radial and square screen designs are viable for scanning.
  • Square screens offer improved lateral resolution in the Hartmann test.