My data was from AM. Someone stated that CTC has a relatively low work RVU (2.28) compared to CT A/P (1.8). They also stated that one could read about 4 CT a/p in the time that it takes to supervise/perform and interpret a CTC exam. They/I may be wrong
You may be right. But it is not a valid reason for not doing it. For example, CXR pays peanuts but we end up doing it. The days that I read Xray the whole day, the RVUs that I generates is nothing compared to the days that I read MRI the whole day.
In reality, if it becomes the standard of care two things will happen:
1- The fee for optical colonoscopy will go down because insurance will not pay for OC at higher price.
2- Radiologists will end up doing it even if they don't want to. Similar to mammo or CXR.
There may be a push from GI community to learn the technology. I don't say they won't. Many general surgeons are doing screening colonoscopies these days, mostly outside academic places. Family doctors also do sigmoidoscopy. So yes. GI doctors will learn it. But in a big picture, since it is a screening tool, radiology will dominate the field. There is not need for the patient to see a GI doctor. Similar to mammograms. People just come in for their screening mammograms and most of them are referred by family doctors. Even some insurances don't need referral from family doctors and the radiology can do it without an order. Similarly, CTC won't need referral from GI. It will be referred from family doctors or even without referral.
I personally don't know about any cardiology group that cuts extra-cardiac findings. Most cardiologists who read CTA coronaries have radiology overread extracardiac findings. It is not easy just to cut anything outside heart. Do they just draw a line at the level of pericardium? The best they can do is to decrease the FOV but still some parts of mediastinum and lungs and bones are visible.
Anyway cardiac CTA is different since most of it is referred from cardiology and some from CT surgery. It is not a true screening test and the results needs to be put in a clinical context. Somehow like cardiac SPECT. The patient usually has chest pain. You can not say it is normal and go home. On the other hand, for TRUE screening tests like mammo or colonoscopy, you can tell the patient to go home and come back in a year or 5 years. No need for GI or breast surgeon.
Having said that, I personally see the DNA test in stool a more "revolutionary" step. Sooner or later, it will replace OC or CTC. It is just a matter of time. I know many GI docs and many others will disagree with me but let's face the reality. The current practice of GI will change dramatically in the future when it comes to screening for colon cancer. It is very effective but at the same time very "aggressive" for just a screening test. Screening test does not need to be perfect and once the stool DNA reaches a certain level of sensitivity and specificity it will replace CTC or OC.
Which one is better? To have 60% of population screened by OC with 98% accuracy or 65% screened by CTC with 92% of accuracy or 90% screened by stool DNA with for example 85% accuracy. Be sure that the third option is the most viable option.