The efficacy of apparent diffusion coefficient value calculation in differentiation between malignant and benign...

Area of Science:

• Radiology
• Medical Imaging
• Oncology

Background:

• Thyroid nodules are common, with a significant proportion being malignant.
• Accurate differentiation between benign and malignant thyroid nodules is crucial for appropriate patient management.
• Conventional imaging methods may have limitations in definitively characterizing thyroid nodules.

Purpose of the Study:

• To assess the diagnostic performance of apparent diffusion coefficient (ADC) values in distinguishing malignant from benign thyroid nodules.
• To determine if ADC calculation can serve as a reliable imaging biomarker for thyroid nodule characterization.

Main Methods:

• A prospective study involving 52 patients with thyroid nodules.
• Diffusion-weighted echoplanar imaging was performed with b factors of 0 and 400 s/mm(2).
• Apparent diffusion coefficient (ADC) values were calculated for each nodule.

Main Results:

• The mean ADC value for malignant thyroid nodules was significantly lower (0.829±0.179×10(-3) mm(2)/s) compared to benign nodules (1.984±0.482×10(-3) mm(2)/s).
• A statistically significant difference was observed between the ADC values of malignant and benign nodules (P=.0001).

Conclusions:

• Apparent diffusion coefficient (ADC) calculation is a valuable tool for differentiating malignant from benign thyroid nodules.
• ADC imaging offers a non-invasive method to improve the accuracy of thyroid nodule diagnosis.