Scott Allen10 said:Hmm... I don't know, it's not quite that simple in practice... For a CT coronary angiogram to even work, you have to hit certain hemodynamic markers first. The big one is heart rate... if the patient is experiencing tachycardia, the whole thing is pretty much pointless. You have to monitor the patient constantly, which makes the process a lot more complex than people realize. Plus, a radiologist isn't going to step in to medicate a sudden spike in heart rate; you need a different specialist on hand to handle that, and so on... it's a bit more involved than that. At least, in my experience, it is. I'm not saying other places do it differently, but here in the States, when we do a CT coronary, there’s an anesthesia team right there with monitoring gear, ready to give a mix of sedatives and beta blockers via IV to get everything stable enough for a clear shot.
And another thing... a CT coronary isn't some magic substitute for a real-deal coronary angiogram. It's more like a high-tech way to get a general idea of what's happening in the coronary arteries. Honestly, it would be pretty risky to plan any major surgery or jump to a final conclusion based solely on what a CT scan shows.
edit:
My bad, I just realized you already mentioned beta blockers and tachycardia earlier... mea culpa!
Of course it isn't simple 🙂 and naturally, by global standards, a CT coronary scan is a joint effort between a radiologist and a cardiologist; however, from the patient's perspective—once the preparation is complete, including premedication, the EKG, and setting the technical parameters depending on whether they are using prospective or retrospective gating—the whole process isn't actually all that daunting, and the time spent inside the CT gantry shouldn't be particularly long at all.🤷
In my opinion, the most demanding part doesn't even happen until later during the post-processing phase.😬
I didn't mean to imply that anyone would plan surgery based strictly on a CT coronary scan, but if the results look clean, I highly doubt anyone would feel compelled to opt for a traditional coronary angiography in that specific case.🤷