Sounds like the initial problem here is that they can't get good enough images of your mitral valve, so that's why the doctor is suggesting the TEE (trans-esophageal echocardiogram). This will require sedation (usually moderate sedation, like getting your wisdom teeth out). This is a very safe procedure, so I'd suggest it as a good next step to get all the important information your doctor needs.
I have pasted the findings of my regular echo below (The tricuspid regurgitation is new) I apologize for the formatting. It wouldnt allow photos.I am a 31 y/o female and just had my yearly follow-up with cardiology. Suddenly my doctor says she is very concerned about my MVP due to my age, and scheduled the esophageal echo.Naturally, I am terrified. I have a four year old, and Im supposed to be getting married. I have issues with anesthesia and Ive been a mess at work all day at the thought of having heart surgery - or possibly not waking up.How serious DOES this sound? I believe a doctor when they say theyre concerned. But Im freaking out right now. Normal left ventricular size and systolic function with an estimated EF 55%. Mild left atrial enlargement. The mitral valve is thickened and the anterior mitral valve leaflet is elongated. There is bileaflet mitral valve prolapse and an associated eccentric jet of moderate mitral insufficiency. There is mild tricuspid valve regurgitation. Dilated IVC without respiratory variation consistent with elevated right atrial pressure 15 mmHg. Estimated PA systolic pressure at the upper limits of normal 34 mmHg. Given decline in LV systolic function (previously 65%) and technically difficult images with difficult to view mitral insufficiency, will discuss with the patient moving forward with a TEE.-Left ventricle cavity size appears normal. Left ventricular systolic function is normal with an ejection fraction of 55%.-Left atrium cavity size is mildly dilated.-Right ventricle cavity size appears normal. -Systolic function is normal.-Right atrium cavity size is normal.-The aortic valve is probably tricuspid. The leaflets exhibit normal excursion. There is no regurgitation.-The mitral valve is thickened and the anterior mitral valve leaflet is elongated. There is bileaflet mitral valve prolapse and an associated eccentric jet of moderate mitral insufficiency.-There is mild tricuspid regurgitation. RVSP is 34 mmHg.-The pulmonic valve was not well visualized.-The aortic root at the Sinuses of Valsalva appears normal in size.-The inferior vena cava demonstrates a diameter of >21 mm and collapses <50%; therefore, the right atrial pressure is estimated at 15 mmHg.-There is no pericardial effusion