SUVmax
Also written as: SUVmax — Maximum Standardized Uptake Value
The highest level of radiotracer uptake within a region of interest on PET imaging, used to quantify metabolic activity.
Full Definition
Maximum Standardized Uptake Value (SUVmax) represents the pixel with the highest radiotracer uptake within a defined region of interest on positron emission tomography (PET) scans. This quantitative measurement helps oncologic radiologists assess tumor metabolism, stage cancer, monitor treatment response, and detect recurrence. SUVmax values are normalized for patient weight and injected dose, making them comparable across different patients and time points. Higher SUVmax values typically indicate more aggressive tumors or active disease, though interpretation must consider the specific radiotracer used and clinical context.
Usage
Usage note: No spaces in SUVmax; distinguish from SUVmean and SUVpeak in reports.
In Context
- "The pulmonary nodule demonstrated an SUVmax of 8.2, suggesting malignancy." — PET/CT report
- "Post-treatment SUVmax decreased from 12.4 to 3.1, indicating favorable response." — Follow-up imaging report