Acquired tracheomalacia: Detection by expiratory CT scan

作     者：Aquino, SL Shepard, JAO Ginns, LC Moore, RH Halpern, E Grillo, HC McLoud, TC 

作者机构：Dept Radiol Boston MA USA Dept Pulm & Crit Care Med Boston MA USA Dept Gen Thorac Surg Boston MA USA 

出 版 物：《JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY》 (计算机辅助X线断层摄影术杂志)

年 卷 期：2001年第25卷第3期

页      面：394-399页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1006[医学-中西医结合] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 100106[医学-放射医学] 1009[医学-特种医学] 10[医学] 100602[医学-中西医结合临床] 

主　　题：trachea computed tomography tracheomalacia trachial stenosis airway obstruction diagnosis, computer-assisted 

摘      要：Purpose: The put-pose of this work was to determine whether cross-sectional area and coronal and sagittal diameter measurements of the trachea between inspiration and end-expiration on CT are significantly different between patients with acquired tracheomalacia and those without this condition. Method: Inspiratory and end-expiratory CT scans of the trachea of 23 normal patients and 10 patients with acquired tracheomalacia were analyzed. Percent changes in cross-sectional area, coronal, and sagittal diameters were calculated. Results: For patients with tracheomalacia, mean percent changes in the upper and middle trachea between inspiration and expiration were 49 and 44% : mean changes in the coronal and sagittal diameters in the upper and middle tracheal were 4 and 10% and 39 and 54%, respectively. Control group mean percent changes in the upper and middle tracheal area were 12 and 14%, respectively, and mean changes in the coronal and sagittal diameters in the upper and middle trachea were 4 and 4% and 11 and 13%, respectively. Significant differences were calculated for changes in cross-sectional area and sagittal diameter between groups (p 18% change in the upper trachea and 28% change in the midtrachea between inspiration and expiration were observed: the probability of tracheomalacia was 89-100%. The probability of tracheomalacia was 89%, especially if the change in sagittal diameter was 28%. Conclusion: By measuring changes in tracheal cross-sectional area and sagittal diameters between inspiratory and end-expiratory CT, a significant difference can be identified between normal patients and those with acquired tracheomalacia.