Purpose: To compare hemodynamic of malignant and benign SRMs on CT and CEUS.
Method: Seventy biopsy proven SRM underwent CEUS. Sixty-three had CT. After injection of 0.2 ml of Definity, 3min and after 0.9 ml infusion, 30 sec of data were acquires. Lesion hemodynamics relative to the cortex was evaluated both qualitatively and quantitatively.
Results: Considering 15 and 20 HU as enhancement threshold, 10% to 13% of patients did not enhance on CT, while all lesions enhanced on CEUS. Papillary RCCs showed hypovascularity with 100% specificity. In other RCCs, PI, WI slope 5 to45%, 50 to100%, 10 to 90%, WO slope 100 to 50%, 100 to 10%, WO intensity at peak+30 seconds were statistically higher than benign SRMs.
Conclusion: All solid SRMs enhance on CEUS, while CT does not show vascularity in 10-13% of solid SRMs. CEUS can differentiate malignant from benign SRMs by evaluating their hemodynamics.
| Identifer | oai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/35141 |
| Date | 19 March 2013 |
| Creators | Tabatabaeifar, Leila |
| Contributors | Atri, Mostafa |
| Source Sets | University of Toronto |
| Language | en_ca |
| Detected Language | English |
| Type | Thesis |
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