On a similar personal note, I had a half-year health scare that ended just today.
In May, they told me on ultrasound that my dilated aortic root has grown by more than 2 mm in the last year and that if the progression does not stop, an operation will sooner or later be necessary.
I got a referral to magnetic resonance and had to wait for it until October. Was there last week, nervous. Today I got the result: compared to the MR from 2021, there is no progression at all. The same 44 mm as then. The ultrasound was just not as precisely done, or the doctor measured it slightly askew or what.
Ooof.
Sorry to inject whatever uncertainty this produces, but how do you know that the most recent "no growth" reading is the correct one? To me your story justifies at least 1 or 2 more regular scans.
I was told by the cardiologist who ordered both scans that MR results are very precise, while ultrasound is more of an "orientation scan" and small variations in how the doctor holds the probe and interprets the picture can add up to milimeters of difference. If there is a discrepancy, MR is the gold standard for decisions about treatment.
This was at IKEM in Prague, one of the best cardio units around, so I trust their judgment.
https://www.ikem.cz/en/