Department of Paediatric Orthopaedics, Centro Clínico Orthopectus, Hospital Regional da Asa Norte, Secretaria de Estado da Saúde do Distrito Federal, Brasília, Brazil.
Skeletal Radiol. 2010 Aug;39(8):773-82. doi: 10.1007/s00256-010-0874-8. Epub 2010 Feb 10.
To assess, with computed tomography (CT) studies, features of anterior chest wall development that can be related to different types of pectus deformities.
From 71 patients with pectus deformities and chest coronal CT scans, 48 (40 male and 8 female), with a mean age of 15.8 years (ranging from 5 years to 38.4 years) were selected and divided into five groups, according to clinical type of deformity and image quality. A similar CT study was performed in a sixth group of 14 individuals with no underlying pectus deformity (control group), six male and eight female, mean age 19.3 years, (range 10.8 years to 30.5 years), totaling 62 subjects. Tomographic studies were performed on a 64-section CT scanner, with parameters varied according to the subject's body mass index (BMI). Coronal reconstructions were used to assess six features of the sternum and costal cartilages in the groups. Two other factors, a sternal index, created to estimate the sternal body width, and the sternocostal angles, were also studied.
Feature I was noted in 13 patients and in no controls (P = 0.002), feature II in 39 patients and in one control (P = 0.000), feature III in 37 patients and in two controls (P = 0.002), and feature IV in two patients and in no controls (P = 0.002). The sternal index was significant to one group of patients.
The features studied and the index provide measurable and applicable data for the interpretation of anterior chest wall tomography, with possible implications for prognosis and treatment of different types of pectus deformities.
通过 CT 研究评估前胸部壁发育的特征，这些特征与不同类型的鸡胸畸形有关。
从 71 例鸡胸畸形和胸部冠状 CT 扫描患者中，选择 48 例（40 名男性和 8 名女性），平均年龄 15.8 岁（范围 5 岁至 38.4 岁），根据临床畸形类型和图像质量将其分为五组。在无潜在鸡胸畸形的第六组（对照组）中，也进行了类似的 CT 研究，共 14 人，其中 6 名男性和 8 名女性，平均年龄 19.3 岁（范围 10.8 岁至 30.5 岁），共计 62 例。断层扫描研究在 64 层 CT 扫描仪上进行，参数根据受检者的体重指数（BMI）而变化。冠状重建用于评估各组胸骨和肋软骨的六个特征。还研究了另外两个因素，一个创建来估计胸骨体宽度的胸骨指数和胸骨肋角。
在 13 例患者中观察到特征 I，对照组中没有（P = 0.002），在 39 例患者中观察到特征 II，对照组中 1 例（P = 0.000），在 37 例患者中观察到特征 III，对照组中 2 例（P = 0.002），在 2 例患者中观察到特征 IV，对照组中没有（P = 0.002）。胸骨指数对一组患者有意义。
所研究的特征和指数为前胸部壁断层扫描的解释提供了可测量和适用的数据，可能对不同类型鸡胸畸形的预后和治疗有影响。
