Sentinel node localization using CT-lymphography and SPIO-enhanced MR imaging for diagnosis. Three-dimensional CT-lymphography reconstructed from the first post-contrast images (a). Lymphatic vessels drained into a single axillary sentinel node (arrow). Images of CT-lymphography (b) and T2*-weighted axial MR images (c) at the same level were compared to specify the node (arrow) on T2*-weighted axial MR imaging corresponding to the sentinel node (arrow) identified by CT-lymphography. The node (arrow) showed high-signal intensity before administration of superparamagnetic iron oxide (SPIO). (d) After administration of SPIO, the node showed homogenous low signal intensity and was diagnosed as benign (arrow).
Motomura et al. BMC Medical Imaging 2013 13:32 doi:10.1186/1471-2342-13-32