Originally Posted by dwj469 I have a question regarding putting a peaked roof over a flat roof on a mobile home. The owneer of the park requires all flat roof mobile homes to have a peaked roof put on within a certain time period. They do not want a floating roof with the 4x4's going down to the ground.
Lung PET Scan. Definition. A lung positron emission tomography (PET) scan is an imaging test that uses a radioactive substance (called a tracer) to look for disease in the lungs, especially lung cancer.
Highlights. 1  A pulmonary ventilation/perfusion scan consists of two scans that are performed one after the other. They measure air and blood flow in the lungs. 2  These scans are used to measure lung function for a variety of reasons, but are performed most often for a blood clot in the lungs, called a pulmonary embolus.