Volumetric cardiac quantification by using 3D dual-phase whole-heart MR imaging

Sergio Uribe1, Tarinee Tangchaoren, Victoria Parish

  • 1Division of Imaging Sciences, King's College London, BHF Centre, St Thomas' Hospital, London SE1 7EH, England. sergio.uribe_arancibia@kcl.ac.uk

Radiology
|June 25, 2008
PubMed

Insights

A new 3D magnetic resonance imaging method accurately quantifies cardiac volumes. This free-breathing technique provides comparable results to traditional methods for assessing left and right ventricular function.

Area of Science:

  • Cardiovascular Imaging
  • Medical Physics
  • Cardiac MRI

Background:

  • Accurate assessment of ventricular volumes is crucial for diagnosing and managing cardiovascular diseases.
  • Traditional cardiac MRI methods often require breath-holding, which can be challenging for some patients.
  • Developing free-breathing techniques can improve patient comfort and data acquisition efficiency.

Purpose of the Study:

  • To evaluate a novel three-dimensional (3D) whole-heart magnetic resonance imaging (MRI) approach for assessing ventricular volumes.
  • To compare the accuracy of this new dual-cardiac phase 3D MRI technique against established methods.
  • To determine the feasibility of acquiring end-systolic and end-diastolic ventricular volumes in a single free-breathing examination.

Main Methods:

  • Acquisition of 3D dual cardiac phase whole-heart datasets during free-breathing MRI.
  • Comparison with short-axis multisection breath-hold images and through-plane flow measurements.
  • Statistical analysis to compare stroke, end-systolic, and end-diastolic volumes for the left ventricle (LV) and right ventricle (RV).

Main Results:

  • The novel 3D dual-cardiac phase approach yielded results comparable to breath-hold and flow measurement methods.
  • High correlation coefficients (r > 0.95) were observed between the new technique and conventional methods.
  • No significant differences were found in quantified LV or RV volumes (stroke, end-systolic, end-diastolic) across the compared techniques.

Conclusions:

  • The novel 3D free-breathing MRI technique offers a reliable and accurate method for quantifying cardiac ventricular volumes.
  • This approach demonstrates comparable performance to established breath-hold techniques, potentially improving patient experience.
  • The findings support the clinical utility of this advanced MRI technique for cardiac function assessment.