ostium

n.

口，门口；

复数：ostia

Study of Intranasal Ostium External Dacryocystorhinostomy
Pulmonary Vein Ostium Geometry Analysis by Magnetic Resonance Angiography
Solitary coronary ostium in the aorta in the absence of other major congenital cardiovascular anomalies.
Stenosis of the coronary sinus ostium. An unusual site of obstruction in total anomalous pulmonary venous drainage.
Separate aortic ostium of the left anterior descending and left circumflex coronary arteries from the left aortic sinus of Valsalva ...
Focal atrial tachycardia from the ostium of the coronary sinus: electrocardiographic and electrophysiological characterization and r...
Frequency of success and complications of coronary angioplasty of a stenosis at the ostium of a branch vessel.
Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall
Accuracy of computed tomographic angiography and magnetic resonance angiography for diagnosing renal artery ostium stenosis and its ...
Single coronary artery from the right sinus of Valsalva, associated with absence of left anterior descending and an ostium-secundum-...