Technical aspects and analysis guide of the chest radiography

Abstract

Paying attention to the incidences and technical parameters is essential before starting to interpret conventional chest radiography findings. Systematic evaluation using a semiology routine and proper terminology is important in radiography interpretation. In this article, we meant to cover the basic technical aspects for getting a good exam and propose a systematic script to correct interpretation of conventional chest radiographies. When possible, the chest radiography should be performed in both incidences: posteroanterior (PA) and lateral. There are some other specific incidences like anteroposterior (AP), lateral decubitus with horizontal rays (Laurel), apicolordotic, obliques, maximum expiration and radiography with external markers. The 3 main technical parameters evaluated in clinical routine are the radiation dose (related to the exposure, leading to a too brighten or too dark image), correct inspiration (verifying if the exam wasn’t made in expiration) and alignment (verifying if the patient was corrected aligned to the ray direction). Systematic evaluation of conventional chest radiography going through a semiology routine helps reducing the chance of losing subtle or secondary findings. A normal exam report model could work as a guide to the exam interpretation.