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Related Experiment Videos

[Assessment of global left ventricular function with multi-slice spiral computed tomography].

Lan Song1, Zheng-yu Jin, Yi-ning Wang

  • 1Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.

Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
|March 22, 2006
PubMed
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Multi-slice spiral computed tomography (MSCT) effectively determines global left ventricular function. This advanced CT imaging shows clinically acceptable agreement with conventional left ventriculography for key cardiac measurements.

Area of Science:

  • Cardiovascular Imaging
  • Radiology
  • Cardiac Function Assessment

Background:

  • Accurate assessment of global left ventricular function is crucial for managing coronary heart disease.
  • Conventional left ventriculography (LVG) is an invasive standard for evaluating left ventricular volumes and ejection fraction.

Purpose of the Study:

  • To evaluate the diagnostic value of multi-slice spiral computed tomography (MSCT) in quantifying global left ventricular function.
  • To compare MSCT-derived measurements with those from conventional left ventriculography.

Main Methods:

  • Twenty-nine patients with suspected coronary heart disease underwent contrast-enhanced, ECG-gated 64-slice spiral CT.
  • Left ventricular end-diastolic volume (LVEDV), end-systolic volume (LVESV), stroke volume (LVSV), and ejection fraction (LVEF) were calculated.

Related Experiment Videos

  • MSCT results were compared against conventional left ventriculography (LVG) using correlation and Bland-Altman analysis.

    • Main Results:

    • MSCT demonstrated significant correlations with LVG for LVEDV, LVESV, LVSV, and LVEF (r = 0.887–0.956, P < 0.001).
    • Mean differences between MSCT and LVG were within clinically acceptable ranges for all parameters.
    • Bland-Altman analysis showed limits of agreement indicating good concordance between the two methods.

    Conclusions:

    • Multi-slice spiral computed tomography (MSCT) provides a reliable non-invasive method for assessing global left ventricular function.
    • MSCT exhibits clinically acceptable agreement with left ventriculography for quantifying key parameters of left ventricular performance.