Many thanks for the information, Marion - that's a great help.
In fact we're based in England, and have been travelling to Germany for treatment. TACE is only used in the UK for liver disease, not CC. We have already met some of Prof Vogl's other British patients, who are being given TACE for liver, kidney and lung disease.
The most recent paper we could find on TACE for treatment of patients with unresectable CC can be found here: http://goo.gl/TfRuy (full text may be borrowed on request if anyone's interested).
We're not sure of the correct terminology when searching PubMed etc. My wife originally had a Whipple after diagnosis June 2011; that was resectable CC. Now, with recurrence in the retroperitoneum (the new tumor has encased the superior mesanteric artery) this is considered inoperable; cyberknife would be high risk for neighbouring organ damage; nanoknife we're not sure yet - it's not commonly used in the UK. All reasons why we considered TACE as an alternative treatment: non-invasive (well, reasonably), low risk etc.
Should the correct terminology for her condition now be unresectable CC or inoperable CC? Or whether it's now CC? It's not entirely clear from the PubMed results whether 'unresectable' only refers to the 'original' disease.