<qa>  What is the only option for preparing delivery of fiducials via the EUS approachEndoscopic ultrasound EUS has been pivotal in accomplishing image guided radiation therapy IGRT in patients with pancreatic cancer by allowing precise contouring and identification of target lesions in the pancreas via placement of fiducials using fine needle aspiration FNA needles. Currently, back-loading the fiducials is the only option for preparing delivery of fiducials via the EUS approach. A prototype 22-Gauge EUS needle preloaded with four fiducials has recently been developed, and used in a porcine models with successful results. There are no randomized controlled trials comparing total duration of time needed for placement of fiducials using technical success of the traditional back- loading technique of fiducial markers to the new preloaded needles in regards to EUS based fiducial marker placement for IGRT in pancreatic cancer. 