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Related Experiment Videos

The normal and abnormal left superior intercostal vein.

A C Friedman, E Chambers, S Sprayregen

    AJR. American Journal of Roentgenology
    |October 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

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    The left superior intercostal vein, visible on 1.4% of chest X-rays, can indicate circulatory issues if over 4.5 mm. This finding aids in diagnosing various cardiovascular and mediastinal abnormalities.

    Area of Science:

    • Radiology
    • Cardiovascular Imaging
    • Thoracic Anatomy

    Background:

    • The left superior intercostal vein (LSICV) is a thoracic venous structure.
    • Its visualization and size on chest radiographs can be indicative of underlying pathologies.

    Purpose of the Study:

    • To determine the incidence of LSICV visualization in normal individuals.
    • To establish normal size parameters for the LSICV on chest radiographs.
    • To assess the diagnostic utility of LSICV diameter in identifying circulatory abnormalities.

    Main Methods:

    • Analysis of 500 normal erect posteroanterior chest radiographs.
    • Measurement of LSICV diameter in visualized cases.

    Main Results:

    Related Experiment Videos

  • The LSICV was visualized as a small "nipple" lateral to the aortic knob in 1.4% of normal individuals.
  • Normal LSICV diameter was found to be up to 4.5 mm.
  • Vein dilatation beyond 4.5 mm suggests potential circulatory abnormalities.

    • Conclusions:

    • An enlarged LSICV (diameter > 4.5 mm) is a significant sign of circulatory abnormalities.
    • Differential diagnoses for an enlarged LSICV include congenital anomalies (e.g., absent inferior vena cava), venous obstruction, heart failure, and mediastinal masses.
    • LSICV size evaluation is a valuable, non-invasive tool in thoracic radiography for detecting serious medical conditions.