Chapter 3 marks the start of the subsequent chapters that organize medical
imaging according to the body’s systems. The author chose to start the book with the
respiratory system, structurally focused on the chest and is the part of the body that
tends to receive the highest number of requests for the most basic medical imaging
modality – radiography. Chest radiographs are still available and valuable globally.
Chest X-rays [1] are of greater significance in resource-poor countries; this is because
the equipment to perform chest radiography is near ubiquitous in the distribution of
these places.
Keywords: Chest X-ray, POPIRAM.