Do you routinely obtain surveillance brain MRI studies after PCI?

In ED, this was the subject of debate with 2014 ASCO finding of worse survival post PCI. Recent 2016 in Vienna Update, no OS benefit, but no detriment either. Japanese ethnicity may respond differently...more respiratory toxicity has been noted as well as worse somnolence.

In LD, where PCI improves OS, some controversial advocacy to forget PCI, only use SRS at time of failure. As 20% SCLC present with BM, and more than 50% relapse without PCI, I do not favor. About 20% relapse in brain post PCI. Finding earlier does not identify a favorable subset. Relapse in a very small minority is brain, and even smaller solitary brain.

Choosing wisely, I'd not invest resources in surveillance MRI post PCI.