Materials and methods: 150 patients with chronic cough, sputum and hemoptysis in whom bronchiectasis was suspected underwent bronchography using nonionic or ionic agent respectively.

• 材料与方法:对长期慢性咳嗽、咳痰、咯血,疑诊为支气管扩张的150例患者,用离子型或非离子型造影剂行支气管造影检查。