106 pleural effusions or pleural opacities suggesting fluid were evaluated in a prospective study by B-mode real-time sonography and radiography. 41 cases were first investigated by means of ultrasound, 65 by the conventional erect roentgenogram. The correct diagnosis of pleural fluid was made by ultrasound in 95.3% and by radiologic examination in 86.8% of the cases. Radiography failed to distinguish between pleural effusion and solid pleural thickening in 7.5%, sonography in 1.9% of the cases. In 8 patients with normal roentgenograms, small epidiaphragmal pleural effusions were detected by means of ultrasound. In diagnosis of pleural effusion, sonography was found to be superior to the conventional radiologic technique both in sensitivity and in diagnosing the consistency. The value of the ultrasonic method both in establishing the quality of intrathoracic masses adjacent to the pleura and in sonographically guided needle puncture is emphasized

Keywords:
Ultrasound study, Pleural effusions, Intrathoracic masses, Needle biopsy
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© 1980 S. Karger AG, Basel
1980
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