If you are interested in the technical details...
SIRT (Selective Internal Radio Therapy) is not just a hose, saline and a bunch of pellets inserted and "fired" into my liver for 5 minutes!
It's also not widely available.
It's one of the most sophisticated procedures available from the NHS - only 10 hospitals are qualified to do it, and they do 1 per week each!! I feel so fortunate to be accepted onto the programme - for that's what it is, still a trial funded by the NHS.
First of all, it involves 2 overnight hospital visits - today for the plumbing, and a week on Thursday for the pellet injection.
Today, I am going to have to lie still fojr 5 hours as they insert tubes and bungs to ensure the injection through my femoral artery goes to all the right places in the liver, and avoids the areas it is not needed via "coils" (bungs) that block off other unwanted routes - whether those pathways to still healthy parts of my liver, or to other organs.
This stage concludes with a "dummy run" with a very weak radioactive source (technetium, 6 hour half life, gamma ray) that's tracked through my body from the injection site to check all is well.
Then just over a week's time they will administer the pellets.
These are microscopic, smaller than the width of a human hair, with millions in the small vial of serum. They are yttrium 90, manufactured only in Australia, and decay to yttrium 89 via beta particle (electron) decay, with a 2 day half life. The electrons have very short range (1 to 2 cm), hence the need to get them to the right places.
But as they are absorbed, they emit X rays that leave the body, which is why we do not want to expose me to too many people for 7 days from the injection - however the levels are very low, and Diana is perfectly safe given we take simple precautions.
The efficacy is still "unknown" (it's a trial!) But strongly believed to be "good" in the majority of cases. It also must be delivered in conjunction with chemo, hence I recommence that treatment next week, in between the two stages of SIRT.
Overall we are very excited - not only no primary any more, but also THREE treatments on the secondary - SIRT, chemo and the MAB (Avastin)... one of them has got to work!