Three-Tesla magnetic resonance imaging of left ventricular volume and function in comparison with computed tomography

Fu-Qian Guo1, Bai-Lin Wu, Xiao-Wei Liu

  • 1Department of Medical Imaging, The Second Hospital, Hebei Medical University, Shijiazhuang, Hebei Province, China.

Medicine
|April 14, 2023
PubMed

Insights

3-Tesla MRI and 256-slice CT (MSCT) show strong correlation in assessing left ventricle function. MSCT may serve as a viable alternative to MRI for cardiac evaluations.

Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Medical Diagnostics

Background:

  • Accurate assessment of left ventricular function is crucial for diagnosing and managing cardiovascular diseases.
  • 3-Tesla magnetic resonance imaging (MRI) is a gold standard for cardiac function assessment.
  • Computed tomography (CT) and echocardiography (ECHO) are alternative imaging modalities with varying accuracy.

Purpose of the Study:

  • To investigate the correlation and agreement between 3-Tesla MRI and 256-slice multi-detector computed tomography (MSCT) in evaluating left ventricular parameters.
  • To compare the diagnostic performance of MSCT and 2-dimensional echocardiography (ECHO) against 3-Tesla MRI.
  • To determine if MSCT can be a potential alternative to MRI for left ventricular assessment.

Main Methods:

  • Retrospective analysis of 40 patients who underwent cardiac MSCT, 3-Tesla MRI, and 2-dimensional ECHO within one week.
  • Quantitative analysis of left ventricular end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), and ejection fraction (EF).
  • Statistical comparison of parameters obtained from MSCT and ECHO against 3-Tesla MRI, including correlation and limits of agreement.

Main Results:

  • MSCT demonstrated a highly significant correlation with 3-Tesla MRI for all evaluated left ventricular parameters.
  • MSCT showed minor overestimation of ESV and underestimation of EF and SV compared to MRI, with high consistency (95% limits of agreement).
  • 2-dimensional ECHO also correlated significantly with MRI but exhibited wider agreement limits and a slight underestimation of left ventricular function.

Conclusions:

  • 256-slice MSCT exhibits a strong correlation and agreement with 3-Tesla MRI in assessing left ventricular volumes and function.
  • MSCT demonstrates superior correlation and agreement compared to 2-dimensional ECHO when evaluated against 3-Tesla MRI.
  • MSCT may serve as a valuable and potentially cost-effective alternative to 3-Tesla MRI for routine left ventricular assessments.

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