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Updated: Jul 14, 2026
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A Swin Transformer-Based Model for Thyroid Nodule Detection in Ultrasound Images
Published on: April 21, 2023
Quantitative analysis of tumor vascularity in benign and malignant solid thyroid nodules
Andrej Lyshchik1, Ryan Moses, Stephanie L Barnes
1Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675, USA. andrej.lyshchik@vanderbilt.edu
Summary
Quantitative analysis of tumor vascularity using power Doppler sonography accurately differentiates benign from malignant thyroid nodules, especially in smaller lesions. This method offers improved diagnostic accuracy compared to visual assessment for thyroid cancer detection.
Area of Science:
- Radiology
- Oncology
- Medical Imaging
Background:
- Distinguishing malignant from benign solid thyroid nodules is crucial for appropriate patient management.
- Power Doppler sonography is a valuable tool for assessing tumor vascularity, a potential indicator of malignancy.
- Traditional visual analysis of vascular patterns can be subjective and may limit diagnostic accuracy.
Purpose of the Study:
- To evaluate the accuracy of quantitative analysis of tumor vascularity on power Doppler sonograms for differentiating malignant and benign solid thyroid nodules.
- To compare the diagnostic performance of quantitative analysis with visual assessment of power Doppler patterns.
- To establish the reference standard using tumor histologic evaluation.
Main Methods:
- Eighty-six solid thyroid tumors (46 malignant, 40 benign) from 56 patients were analyzed.
- Both visual/qualitative and quantitative analyses of nodule vascularity were performed.
- Quantitative analysis utilized normalized and weighted vascular indices (VIs); univariate analysis assessed accuracy.
Main Results:
- Quantitative analysis of tumor vascularity significantly outperformed visual analysis (P < .05).
- For lesions < 2 cm, a normalized VI > 0.14 achieved 72.4% sensitivity, 100% specificity, and 86.2% accuracy.
- A weighted VI > 0.24 showed similar high accuracy (69.0% sensitivity, 100% specificity, 84.5% accuracy) for small nodules.
Conclusions:
- Quantitative analysis of tumor vascularity on power Doppler sonography is beneficial for differentiating benign and malignant thyroid tumors.
- This quantitative approach offers superior accuracy compared to visual inspection, particularly for small thyroid nodules (< 2 cm).
- Quantitative vascular indices can serve as a valuable adjunct in the diagnosis of thyroid cancer.
