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目的探讨螺旋CT评估漏斗胸的价值。方法收集手术前后均行螺旋CT检查的漏斗胸25例。在轴位CT图像上,测量胸骨凹陷深度(d)、CT凹陷指数[左胸矢状内径(b)与胸椎体前缘至胸骨后缘距离(a)的比值]、Haller指数[胸部最大内横径(c)与胸椎体前缘至胸骨后缘距离(a)的比值]和胸骨凹陷角度,并对手术前后的数据进行统计分析。结果25例漏斗胸患者均有不同程度的胸骨凹陷。手术前测量的胸骨凹陷深度为(18.2±8.2)mm,手术后为(9.9±5.1)mm,两者间有显著性差异(t=9.56,P(0.01);手术前测量的CT凹陷指数为2.48±0.53,手术后为2.03±0.31,两者间有显著性差异(t=6.03,P(0.01);手术前测量的Haller指数为4.25±1.26,手术后为3.11±0.01,两者间有显著性差异(t=5.28,P(0.01);手术前测量的胸骨凹陷角度为143.6°±11.11°,手术后为163.73°±6.95°,两者间有显著性差异(t=-13.05,P(0.01)。结论螺旋CT是评价漏斗胸的一种重要检查方法。
Objective To evaluate the value of spiral CT in evaluating funnel chest. Methods 25 cases of funnel chest were collected before and after the operation. In the axial CT images, the depth of the sternum recess (d), the CT sag index (the ratio of the sagittal diameter of the left chest (b) to the distance from the anterior edge of the thoracic vertebrae to the sternum of the sternum (a)], the Haller index Internal diameter (c) and the anterior thoracic vertebral body to the sternum (a ratio)] and the angle of sternum depression, and statistical analysis of preoperative and postoperative data. Results 25 cases of funnel chest patients have different degrees of sternum depression. The depth of the sternum recess measured before surgery was (18.2 ± 8.2) mm and (9.9 ± 5.1) mm after surgery, with significant difference (t = 9.56, P <0.01) 2.48 ± 0.53 and 2.03 ± 0.31 after surgery respectively (t = 6.03, P <0.01). The Haller index measured before surgery was 4.25 ± 1.26, and 3.11 ± 0.01 after surgery. There was a significant difference between the two (T = 5.28, P <0.01). The preoperative sternum depression angle was 143.6 ° ± 11.11 ° and the postoperative was 163.73 ° ± 6.95 °, with significant difference (t = -13.05, P (0.01) .Conclusion Spiral CT is an important method to evaluate funnel chest.