الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Ultrasound has received increasing interest from chest physicians in recent years . Modern ultrasound devices are used easily , inexpensive , light weight and portable which make them suitable for outpatient setting as well as bed side investigation for critically ill patient s offering immediate result its availability , absence of radiation and the non-invasive nature increase its use in the up to date work up of various pleura pulmonary abnormities .
The inability ultrasonography to penetrate aireated tissue diverted clinician to appreciating its excellent ability to visualized chest wall, pleura , its superior in many respects to standard supine chest radiography .
Key words
(Pleural Effusion, Ultrasound, Pleura)
Objective: The use of chest ultrasound is a new era in radiology. The chest radiograph is common modality to identify pleural effusion. Many centers worldwide tend to favor the use of chest ultrasound in outpatient and inpatient (e.g. ICU). Our study tried to focus on benefits of chest ultrasound over classic chest radiography,and evaluate the sensitivity and specificity and diagnostic accuracy of high
resolution chest ultrasonography in assessment of pleural effusion (site ,amount ,septation,loculation ,echogenicity and underlying chest mass)
Methods: This is a prospective observational study done on patients complaining of shortness of breath or dyspnea diagnosed later as pleural effusion . Twenty-three patients were enrolled in the study in Radiology department at Ain-Shams teaching hospital, from April 2014 to February 2015.they were 13male and 10 female with mean age of 49 years and age range between (14-74 ) years . Every patient underwent full clinical examination, laboratory and radiological assessment.
Analysis of data was done by IBM coputer using SPSS
Result: There was significant difference between radiographic and ultrasound assessment of pleural effusion (p<0.001). The ultrasound successfully define the exact nature of the PE other than radiograph (p<0.05, p≥0.05) respectively. The sensitivity of ultrasound was 78%. The radiograph was less 30 conclusive in diagnosing the amount of PE.
Conclusions:
Transthoracic ultrasound is a quick, inexpensive, harmless procedure and no exposure to X-radiation. When the nature of pleural fluid contain echoes with or without septations it can be predicted the fluid is an exudates and when the fluid in anechoic it is usually transudate. US provides much useful diagnostic information including detection of small volume of pleural fluid and it is a useful tool to guide percutaneous transthoracic aspiration biopsy of pleural and peripheral lung lesions with high diagnostic yield. In this study, many diseases were not found causing pleural effusion, large studies of pleural effusions will produce a valuable adjunct in the presentation and differentiation of nature of pleural fluid by both ultrasonologically and biochemically.