The lung disease COPD, according to WHO, is the fourth most common cause of death worldwide, and its prevalence is increasing. Of the more than 200 million people suffering from COPD, three million die annually. The diagnostic method that is most specific for emphysema is computed tomography (CT scan) – a costly measure that requires a separate hospital visit and X-ray radiation of the patient. The new prototype instrument for diagnosing pulmonary emphysema is called Airspace Dimensional Assessment (AiDA). Each AiDA measurement takes about 1 minute and the cost is a fraction of a CT scan. Operation of the instrument is so simple that it only takes one hour of training to learn how to use it. Moreover, it has been found that the AiDA measurements provide exceptionally high precision and repeatability.
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