title: Bacterial or nonbacterial pneumonia: accuracy of radiographic diagnosis.
abstract: The initial chest radiographs of 31 patients with laboratory-proved pneumonia were evaluated by a panel of 6 radiologists who had no prior knowledge of the clinical data. No statistical reliability was found for distinguishing bacterial from nonbacterial pneumonia. Radiographic diagnoses were 67% accurate for the 16 cases of bacterial pneumonia, and 65% accurate for the 9 viral cases. Six cases of Mycoplasma pneumonia were diagnosed as nonbacterial 19% of the time, and as "bacterial pneumonia" 81% of the time.
mesh_terms: D000328:Adult; D000368:Aged; D001442:Bacteroides Infections / Q000000981:diagnostic imaging*; D003384:Coxsackievirus Infections / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007251:Influenza, Human / Q000000981:diagnostic imaging; D007710:Klebsiella Infections / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009175:Mycoplasma Infections / Q000000981:diagnostic imaging*; D011014:Pneumonia / Q000000981:diagnostic imaging*; D011018:Pneumonia, Pneumococcal / Q000000981:diagnostic imaging*; D011024:Pneumonia, Viral / Q000000981:diagnostic imaging*; D011859:Radiography