Hi. Very similar as NKompa with a bicuspid valve and an ascending aneurysm. 2023 echo measured 4 cm. This April it was 4.4 cm. I leave for a CT next Thursday, a 5 hour drive from the rural area where I live, to get that instrument’s measurement. Never had a CT so it will be interesting to get that result. Evidently, the CT is the most accurate. From what I have been told, however, even the same technician using the same tool, at the same center, with the same patient will get a different result if they did the test a few consecutive times. A 3-4 mm difference is possible. Kind of like trying to measure the circumference of a cat’s belly with a measurement tape. Wishing all of you well!