Imaging findings and transcatheter arterial chemoembolization of hepatic malignancy with right atrial embolus in 46 patients

Figure 3 A 69-year-old man with a multinodular HCC located in the right lobe, 7 mo after the 6th TACE, embolus in the RA increased to 4 cm (A-C are the same patient). A: T1-weighted image shows a higher signal nodular (TR: 195 ms/TE: 4.2 ms, ST: 8.0 mm) in RA (arrow); B: T2-weighted image shows a higher signal nodular of HCC in the right diaphragmatic dome, the same well-defined higher signal nodular in the RA and a low signal around the core-cavity (TR: 7058.8 ms/TE: 89.2 ms, ST: 8.0 mm); C: The arterial phase image shows an embolus with low signal filling defect and a “stick”-like enhancement (TR: 190 ms/TE: 1.9 ms, ST: 8.0 mm); D: The coronal image shows the tumor entering into the RA via the widened IVC, the IVC lumen was almost completely filled (arrow) (TR: 3.7 ms/TE: 1.6 ms, ST: 7.0 mm).