忘れないうちに書いておく。
ECG/EKG: EKG and ECG are both abbreviations for electrocardiogram, a test that records the electrical activity of the heart. ECG is the English spelling, while EKG is based on the German spelling, elektrokardiogramm, which uses the letter "k" instead of "c" in both parts of the word: 心電図
transthoracic echocardiogram (TTE): 経胸壁心エコー図
ventricular: 心室
atrial: 心房
hypertrophy: 肥大
systolic: 〔心臓の〕収縮(期)の