On “Mushroom Gastrostomy” (Semin Intervent Radiol 2005;22:61-63)

What are the actual tubes (brand name and type) you use, including their size? Who makes the pull and push types? Who makes the T-fastener? Do you use any push type? When? Does the nasogastric tube that was placed to inflate the stomach get in the way of passing the guidewire up the esophagus (or perhaps it helps as a target)? Do you ever have trouble pulling the tapered dilator tip out the abdominal wall? It seems that pulling would dilate less effectively than pushing, as we usually do with dilators.