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Comparison of M-mode echocardiography and angiography in the evaluation of left ventricular hypertrophy

J Hradec, M Aschermann, J Vancura

    Cor Et Vasa
    |January 1, 1986
    PubMed

    Insights

    M-mode echocardiography effectively diagnoses left ventricular hypertrophy (LVH). For concentric LVH, interventricular septum thickness is reliable, while for eccentric LVH, calculating left ventricular mass using the authors

    Area of Science:

    • Cardiology
    • Medical Imaging
    • Echocardiography

    Background:

    • Left ventricular hypertrophy (LVH) is a significant cardiovascular condition.
    • Accurate diagnosis of LVH is crucial for patient management and prognosis.
    • M-mode echocardiography is a primary tool for assessing cardiac structure.

    Purpose of the Study:

    • To evaluate the reliability of M-mode echocardiography in diagnosing left ventricular hypertrophy.
    • To compare different echocardiographic formulas for assessing left ventricular mass.
    • To assess echocardiographic accuracy in patients with hypertrophic cardiomyopathy.

    Main Methods:

    • Analysis of 82 patients with symmetric left ventricle and homogeneous wall thickness.
    • Measurement of interventricular septum and posterior wall thickness.
    • Calculation of left ventricular mass using various echocardiographic formulas (authors' own, Teichholz', cubic, Fortuin's).

    Main Results:

    • Interventricular septum measurement showed better correlation with angiography (r=0.609) for concentric hypertrophy, achieving 84% diagnostic accuracy.
    • Authors' own formula for left ventricular mass calculation demonstrated highest accuracy (85%, r=0.760) for eccentric hypertrophy.
    • Teichholz' (80%) and cubic (74%) formulas showed moderate accuracy; Fortuin's equations were ineffective. Correlation was low in hypertrophic cardiomyopathy (r=0.534).

    Conclusions:

    • M-mode echocardiography is reliable for diagnosing left ventricular hypertrophy.
    • Specific echocardiographic parameters and formulas are more accurate for different types of hypertrophy.
    • Echocardiographic assessment of left ventricular mass may be less reliable in hypertrophic cardiomyopathy.

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