enhancement kinetics
Pattern of contrast agent uptake and washout in breast MRI used to characterize lesion behavior over time.
Full Definition
Enhancement kinetics describe the temporal pattern of contrast agent uptake and washout in breast lesions during dynamic contrast-enhanced MRI. The analysis involves measuring signal intensity changes over multiple time points after contrast injection, typically categorized into initial enhancement (first 2 minutes) and delayed phase behavior (2-6 minutes post-injection). Enhancement patterns are classified as persistent (continued uptake), plateau (stable signal), or washout (decreased signal), with washout kinetics being more suspicious for malignancy. This temporal analysis complements morphological features in breast MRI interpretation.
Usage
Usage note: Describe both initial and delayed phase characteristics for complete assessment.
In Context
- "The lesion demonstrated rapid initial enhancement with delayed washout kinetics, highly suspicious for malignancy." — MRI report
- "Enhancement kinetics showed a persistent pattern more consistent with benign etiology." — Radiology interpretation