Murphy F B, Small W C, Wichman R D, Chalif M, Bernardino M E
Department of Radiology, Emory University Hospital, Atlanta, GA 30322.
AJR Am J Roentgenol. 1990 Jan;154(1):45-6. doi: 10.2214/ajr.154.1.2104723.
Pneumothorax is the most common complication after CT-guided pulmonary interventional procedures and should be promptly diagnosed and treated. Because it is easier to obtain CT scans than chest radiographs after CT-guided interventional procedures, it is important to know the sensitivity of CT in detecting pneumothoraces. To determine the sensitivity of CT for detecting procedure-induced pneumothoraces, we retrospectively reviewed 70 pulmonary interventional procedures performed under CT guidance. The sensitivity for detecting pneumothoraces with CT was compared with the detection rate with expiratory chest radiographs. Thirty-two (46%) of 70 procedures resulted in pneumothorax. Twenty-nine (91%) of the pneumothoraces were detected on CT scans and 27 (84%) were detected on chest radiographs. The difference between these two detection rates was not statistically significant (p less than .90). We conclude that postprocedure CT scans can replace expiratory chest radiographs for the detection of pneumothoraces after CT-directed pulmonary procedures.
气胸是CT引导下肺部介入手术后最常见的并发症，应及时诊断和治疗。由于在CT引导下介入手术后进行CT扫描比胸部X线检查更容易，了解CT检测气胸的敏感性很重要。为了确定CT检测手术引起的气胸的敏感性，我们回顾性分析了70例在CT引导下进行的肺部介入手术。将CT检测气胸的敏感性与呼气时胸部X线片的检出率进行比较。70例手术中有32例（46%）发生气胸。29例（91%）气胸在CT扫描中被检测到，27例（84%）在胸部X线片上被检测到。这两种检出率之间的差异无统计学意义（p小于0.90）。我们得出结论，术后CT扫描可以替代呼气时胸部X线片用于检测CT引导下肺部手术后的气胸。
