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目的探讨直背综合征的X线特征与临床误诊原因。方法收集我院125例直背综合征完整的X线及临床资料,在标准胸部正侧位片上测量胸前后径与胸横径大小并计算其比值,测量胸椎曲度弧高(T3～T12)。结果直背综合征的X线特征有:胸椎生理曲度变直或消失,胸腔前后径与横径之比<0.4,胸椎曲度弧高(T3～T12)<0.5cm。临床误诊为先天性肺动脉狭窄23例,误诊为房缺16例,误诊为室间隔缺损13例,误诊为冠心病10例。结论充分认识直背综合征的X线特征是减少误诊的关键。
Objective To investigate the X-ray features and clinical misdiagnosis of straight-back syndrome. Methods The complete X - ray and clinical data of 125 patients with straight - back syndrome in our hospital were collected. The size of thoracic and anteroposterior diameters and the diameter of thoracic and transverse diameters were measured and the ratio of them was calculated. ). Results The X-ray features of straight-back syndrome included thoracic physiological curvature straightening or disappearing, thoracic anteroposterior diameter to transverse diameter ratio <0.4 and thoracic curvature arc height (T3-T12) <0.5cm. Clinical misdiagnosed as congenital pulmonary stenosis in 23 cases, misdiagnosed as atrial septal defect in 16 cases, misdiagnosed as ventricular septal defect in 13 cases, misdiagnosed as coronary heart disease in 10 cases. Conclusion Fully understanding the X-ray features of straight-back syndrome is the key to reduce misdiagnosis.