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[Selective thyroid angiography: techniques, diagnosis and indications]

Y Morita1

  • 1Department of Radiation Technology, College of Medical Technology, Hokkaido University.

[Hokkaido Igaku Zasshi] the Hokkaido Journal of Medical Science
|March 1, 1993
PubMed
Summary

Angiography is crucial for diagnosing thyroid tumors, with superior thyroid artery access yielding high success rates. Key diagnostic features improve accuracy in differentiating benign from malignant thyroid conditions.

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Area of Science:

  • Radiology
  • Oncology
  • Vascular Imaging

Background:

  • Thyroid tumors require accurate diagnosis for effective treatment.
  • Angiography has been a clinical tool for thyroid tumor diagnosis for over two decades.
  • Advancements in noninvasive methods necessitate a review of angiography's role.

Purpose of the Study:

  • To review techniques, diagnostic criteria, and limitations of thyroid angiography.
  • To evaluate the indications and significance of angiography in thyroid tumor diagnosis.
  • To propose new indications for selective thyroid angiography.

Main Methods:

  • Review of clinical research on angiographic diagnosis of thyroid tumors over twenty years.
  • Analysis of superior and inferior thyroid angiography via femoral artery access.

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  • Comparison of microangiogram and pathological findings of resected specimens.

    • Main Results:

    • Superior thyroid artery is the primary feeding artery (approx. 80%) for thyroid tumors.
    • Success rate for thyroid artery cannulation improved from 57.3% to 86.9% with technique and device improvements.
    • Diagnostic accuracy for differentiating benign and malignant thyroid tumors reached 94.7% using tumor vessel morphology, stain margin, and density.

    Conclusions:

    • Thyroid angiography, particularly via the superior thyroid artery, remains a valuable diagnostic method.
    • Specific angiographic findings allow for high accuracy in differentiating benign and malignant thyroid tumors.
    • Eight new indications for selective thyroid angiography in extraglandal changes are proposed due to advancements in noninvasive techniques.