Stecker MS, et al. - This study seeks to determine if MRI is a good screening mechanism to guide an invasive procedure in strong candidates, and avert one in poor candidates. Researchers retrospectively examined MRI and conventional lymphangiograms of 96 patients (62 male and 34 female; mean age 63 ± 11 years, range 29–92 years). The measured diameter and level of the best target for each study. They examined technical success rates with respect to presence of a cisterna chyli, target duct size, and target level concordance. The results of this study demonstrate that evaluation of a cisterna chyli and/or 4 mm or greater target on pre-procedural MRI showed higher likelihood of technically successful thoracic duct embolization (TDE). It was noted that MRI did not help prognosticate unsuccessful TDE techniques. Better target level concordance was not correlated with enhanced technical outcomes.