Imaging Features and Diagnostic Performance of US in Nonmass Lesions with Varying Clinical Indications

Key Points

• Diagnostic performance of ultrasound varies by clinical indication, impacting its reliability.
• The lowest positive predictive value was recorded for ultrasound used in preoperative staging, reflecting a key limitation.
• Receiver operating characteristic curve analysis reveals varying effectiveness of imaging features across indications.
• These findings suggest a need for specialized approaches depending on clinical context to enhance diagnostic accuracy.