高千伏后前位胸片对扁平胸综合征的诊断价值

THE DIAGNOSTIC VALUE OF HIGH-KV POSTEROANTERIOR CHEST RADIOGRAPH IN FLAT CHEST SYNDROME

对105例经临床、X线及超声确诊的扁平胸综合征高千伏后前位胸片上的X线表现进行分析，总结出11条较有意义的征象，并对它们各自的发生机制进行了初步探讨。利用最大似然法列出了判别记分表，判别的敏感性为80％，特异性为90％，正确指数为74.3％。作者认为，尽管不能单凭正位胸片上任何一条征象对扁平胸综合征作出确定性的诊断，但当多条征象组合出现时，就可以接近或达到诊断的目的。

The X-ray signs on high - KV PA chest radiograph of 105 cases of flat chest syndrome verified by clinics, radiography and echocardiography were analysed. Eleven significant signs of the syndrome on PA chest radiograph were concluded.The mechanism of all signs were discussed preliminarily. Utilizing the method of maximum likelihood,a score table for distinguishing flat chest syndrome from the opposite was listed. The sensitivity of judgement is 80%, specificity is 90%, the correct index is 74. 3%. No sigle sign on PA chest radiograph is pathognomonic for flat chest syndrome, however,the diagnosis may be approached or even reached in the presence of a combination of several signs.