Estimation of left atrial size using ultrasound.
D000328:Adult; D000790:Angiocardiography; D001830:Body Surface Area; D006328:Cardiac Catheterization; D002932:Cineangiography; D005260:Female; D005471:Fluoroscopy; D006325:Heart Atria / Q000033:anatomy & histology*; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography