Daughter looking for options for mom's mets in smaller liver ducts causing severe increase in Bili,

Hi all
My mom has Stage 4 rectal - diagnosed last June '11. I thought you folks may have some ideas...

I posted last night about my mom's liver enzymes flying up over the last 10 days. It seems that her Bilirubin and Alk Phosphatase are those of highest concern - they are very high (over 1300 for Alk Phos).
Recent news tonight from an ultrasound is that she has metastases that are small, but causing problems in the smaller ducts around her liver. Not in the common bile duct though.

Anyways, doctor will call tomorrow to give options, but I am picking at straws and trying to do all my research so I can have some ideas or talk through some options with him, if any.

PLEASE if you could write back with anything you've heard about hepatic arterial infusion (HAI) or any other intervention, I would greatly appreciate it.

A caring daughter is writing.