Primack S L, Lee K S, Logan P M, Miller R R, Müller N L
Department of Radiology, Vancouver Hospital, British Columbia, Canada.
Radiology. 1994 Dec;193(3):795-800. doi: 10.1148/radiology.193.3.7972827.
To assess the utility of computed tomography (CT) in the evaluation of suspected bronchogenic carcinoma.
CT scans were reviewed of 362 patients who had undergone CT for suspected bronchogenic carcinoma.
CT findings of 275 patients were consistent with bronchogenic carcinoma. Sixty-five tumors were deemed unresectable on the basis of CT findings, 21 were deemed unresectable on the basis of CT findings and poor surgical risk, 26 proved to be benign, six were metastatic disease from an extrathoracic primary tumor, and 157 were potentially resectable bronchogenic carcinoma. Surgical mediastinal nodal sampling enabled documentation of metastases in 60 of 159 patients. According to nodal station, the sensitivity of CT for metastases was 67% for nodes measured in the long axis and 58% for nodes measured in the short axis; specificity was 56% and 86%, respectively.
CT can be used to confirm or exclude the presence of bronchogenic carcinoma and to obviate thoracotomy. The specificity of CT is limited, and a histologic diagnosis or follow-up evaluation is necessary. CT has limited value in staging mediastinal lymph nodes.
评估计算机断层扫描（CT）在疑似支气管源性癌评估中的效用。
回顾性分析362例因疑似支气管源性癌而接受CT检查的患者的CT扫描结果。
275例患者的CT表现符合支气管源性癌。65例肿瘤根据CT表现被判定为不可切除，21例因CT表现及手术风险高被判定为不可切除，26例被证实为良性，6例为胸外原发性肿瘤的转移瘤，157例为潜在可切除的支气管源性癌。手术纵隔淋巴结采样显示159例患者中有60例存在转移。根据淋巴结站位，CT对转移淋巴结长径测量的敏感度为67%，短径测量的敏感度为58%；特异性分别为56%和86%。
CT可用于确认或排除支气管源性癌的存在，并避免开胸手术。CT的特异性有限，因此需要进行组织学诊断或随访评估。CT在纵隔淋巴结分期中的价值有限。
