Contrast-enhanced sonography versus biopsy for the differential diagnosis of thrombosis in hepatocellular carcinoma patients

Table 3 Contingent tables

Group	Results
Patients studied on follow-up	108
Malignant thrombosis	58 (53.7%)
Benign thrombosis	50 (46.3%)
Presence of neoplastic cells on PVT FNB1
True positive	52 (48.1%)
False positive	0
Not neoplastic cells on baseline PVT FNB
False negative	62 (5%)
True negative	50 (46.3%)
Iso-hyper-enhancement pattern1 on CEUS and mosaic pattern
True positive	58
Precocious isoenhancement pattern	21
Precocious hyperenhancement pattern	31
Mosaic pattern3	6
False positive	0
Hypoenhancement patternc on CEUS
False negative	0
True negative	50 (46.3%)

Sensitivity, specificity, positive and negative predictive value of CEUS: All 100%.

¹Iso-hyper-hypoenhancement pattern of thrombus respect to surround parenchyma;

²False negative patients on portal vein FNB were the same with mosaic pattern on CEUS;

³Hynomogeneous iso-hyperenhancement of thrombus.