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Sonoelastography in differentiating benign and malignant thyroid nodules: A histopathological correlation.

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  • 1Department of Radio-diagnosis, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India.

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Acoustic Radiation Force Impulse (ARFI) imaging effectively distinguishes malignant from benign thyroid nodules. This technique shows high sensitivity and specificity, potentially reducing the need for invasive biopsies.

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Area of Science:

  • Radiology
  • Oncology
  • Endocrinology

Background:

  • Thyroid nodules are highly prevalent, necessitating accurate differentiation between benign and malignant types for appropriate patient management.
  • Current diagnostic methods may lead to unnecessary invasive procedures for benign nodules.

Purpose of the Study:

  • To evaluate the efficacy of Acoustic Radiation Force Impulse (ARFI) imaging in differentiating benign from malignant thyroid nodules.
  • To correlate ARFI imaging findings with histopathological results.

Main Methods:

  • A cross-sectional study involving 120 patients with thyroid nodules.
  • Acoustic Radiation Force Impulse (ARFI) imaging was performed on all nodules.
  • ARFI values were compared between benign and malignant nodules and correlated with histopathology.

Main Results:

  • Malignant thyroid nodules exhibited significantly higher mean ARFI values (3.59 ± 0.7 m/s) compared to benign nodules (1.98 ± 0.31 m/s).
  • Using a cutoff value of 2.8 m/s, ARFI imaging demonstrated a sensitivity of 92.6% and a specificity of 92.9%.
  • Integration of ARFI imaging with conventional ultrasound enhanced diagnostic accuracy.

Conclusions:

  • Acoustic Radiation Force Impulse (ARFI) imaging is a valuable tool for differentiating malignant from benign thyroid nodules.
  • ARFI imaging shows potential to improve diagnostic accuracy and reduce the rate of unnecessary thyroid biopsies.