DR与CT在空洞型肺结核中的应用

Determination the value of DR and CT in cavity pulmonary tuberculosis

目的探讨DR摄片与螺旋CT扫描在空洞型肺结核中的应用价值。方法采用DR机行胸部正位片和(或)胸部正侧位片检查,CT扫描采用西门子Spirit螺旋CT机,扫描范围从肺尖至肋膈角处,常规8 mm层厚无间隔扫描,17例对兴趣区追加3 mm薄层扫描。结果在本组病例中,DR片共检出26例结核灶内空洞32个,空洞大小为0.8 cm^5.0 cm,CT扫描检出53例结核灶内空洞171个,空洞大小为0.4 cm^5.6 cm。结论CT在显示空洞型肺结核的空洞数目、大小、形态、周围卫星灶及结核沿支气管播散等方面明显优于DR平片,两者具有明显差异(P<0.05)。

Objective To determine the value of DR radiography and spircal CT scan in cavity pulmonary tuberculosis. Methods Chest was examined with front and lateral view of DR radiography and with scan using Siemens spiral CT. Scanning ranged from apical pulmonary to rib diaphragm. All were scanned with 8 mms slice thickness with conventional interval, except 17 cases of intereste scanned in 3 mm TLC in addition. Results 32 cavities were detected in 26 TB lesions with DR radiography. The range of cavity size with DR was between 0. 8 - 5.0 cm, and 171 cavities were found in 53 TB lesions with CT scan. CT showed the cavity ranges between 0. 4 - 5.6 cm. Conclusion CT scanning was superior obviously to DR radiography in terms of cavity number, size, shape, satellite lesions and areas along the bronchial.