Notme
I don't have TB; I have severe bronchiectasis in both lungs and I was diagnosed by the then gold standard of bronchograms at the age of five. Nowadays the gold standard for diagnosis of bronchiectasis is by CT scan, and you are right in thinking that I have had a number of those. But my doctors stopped doing them long ago; my ordinary chest X-rays provide a game of 'hunt the lung', and any competent physician with a stethoscope would accurately diagnose me without any imaging at all. The only thing my doctors use my CT scans for is a teaching aid; according to the scans I should have died a long time ago. Of course, I have to do around six hours of therapy a day to stay alive but that is a price I'm willing to pay; some people aren't.
The reasons that CT scans are not used in the gold standard diagnosis of COPD are twofold; it has never been possible to achieve a consensus that they are of value, but there is a consensus that people will die as a result of the scans. Most people with COPD are past or present smokers and thus are at a higher risk of certain cancers; whacking them full of radiation is an excellent way of raising that risk still further.
Unfortunately it's perfectly possible that your tumours were a result of your scans, which is why the World Health Organisation's protocol excludes them. And your emphysema, which is nowadays identified as COPD, would have been diagnosed just as well with spirometry without putting you at risk of cancer...