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This study explores the significance of SUV (Standardized Uptake Value) semiquantification in PET imaging for assessing malignancy risk through secondary or delayed imaging protocols, specifically using Tl-201 or Ga-67. The findings indicate that a higher SUV ratio in delayed scans (50-90 minutes post-injection) correlates with an increased probability of malignancy. In contrast, benign lesions typically peak at 30 minutes post-injection, making delayed imaging a valuable tool in distinguishing between benign and malignant conditions.
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