Use of Endobronchial Ultrasound Scope (EBUS) Transducer to Identify Pneumothorax-A Feasibility Study

All subjects will have an ultrasound of the chest performed with the tip of the EBUS scope as well as the linear ultrasound probe, which will be used as a reference for comparison. At the end of the procedure, while the patient in the supine position, the transducer of the EBUS bronchoscope will be placed on the anterior thorax, superficial to the skin and in a sagittal direction that is perpendicular to 2 ribs. The depth of the ultrasound beam will be increased to identify the pleural sliding sign and B lines (vertical lines) when present.This will be followed by use of linear ultrasound probe to scan the chest wall for normal lung sliding, B-lines and potential pneumothorax. The patient will remain in supine position. The linear probe will be placed on anterior thorax at the level of second intercostal space. The depth of the ultrasound beam will be adjusted to identify lung sliding and B-lines.