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目前胸部X 线平片(包括断层片)依然是发现和诊断肺癌的重要检查方法。由于胸腔各种组织造成多层次重叠,给肺癌阴影的发现和判别带来一定困难。电子计算机体层扫描(CT)的问世是X 线技术上的一个重大跃进,它在诊断胸部疾病中具有普通X 线片和断层摄片所无与伦比的优越性。肺癌的CT 检查主要有助于:1.更好地发现病灶;2.在一定程度上鉴别病灶的良、恶性;3.作肺癌的分期和术前估价。因此,CT 检查能使肺癌病人得到更及时客观的诊断和分期,进行更为合理的治疗,进一步改善预后。
At present, chest X-ray (including the slice) is still an important method to detect and diagnose lung cancer. Due to the multi-level overlapping of various tissues in the thoracic cavity, it is difficult to find and discriminate the shadow of lung cancer. The advent of computed tomography (CT) is a major leap forward in X-ray technology, with the unparalleled benefits of plain radiography and tomography in the diagnosis of chest diseases. CT examination of lung cancer is mainly helpful to: 1. To better find the lesion; 2. To some extent, to identify the benign and malignant lesions; 3. Staging and preoperative evaluation of lung cancer. Therefore, CT examination can make patients with lung cancer more timely and objective diagnosis and staging, more reasonable treatment, to further improve the prognosis.