Molecular Imaging 2017

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Nodal Assessment: Additional Benefit
of Diffusion-Weighted MRI ?
DWI improves nodal detection+
 T2 vs DW-MRI0, 500,1000
 101 / 222 nodes on T2;
median 4mm: 27 N+
 157/222 (71%) on DWI;
median 3mm: 37 N+
 Fusion of T2 & high DWI
improves nodal identification*
 47 additional nodes identified
 114 (T2) vs 161 (fused) nodes
 Qualitative signal intensity not
different between normal &
metastatic nodes
Lambregts DM et al. Eur Radiol 2011; 21 (2): 256-73;
Mir et al. J Med Imaging Radiat Oncol 2010; 54:358-64*
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