iRADiX

Chest radiography is the most frequently performed diagnostic examination in the public hospitals and private practices.

Almost 150 million chest X-rays are performed every year in US.

This practice is based on a very simple misbelief and everyone thinks rather naively that :

• If a lesion is present in the lungs, it will show up on the x-ray,
• If a lesion shows up on the x-ray, it will be detected by the physician,
• If the lesion is detected by the physician, it will be correctly interpreted, and
• If the lesion is interpreted correctly, the right diagnosis will be made.

Large scale studies, spanning over 20 years, have shown that:

• 20 to 30% of radiographs considered as NORMAL are in fact PATHOLOGICAL (= FALSE NEGATIVES)

• And 1 to 20% of radiographs considered as PATHOLOGICAL are in fact NORMAL (= FALSE POSITIVES)

The perception of pulmonary lesions is influenced by numerous and complex factors.