TABLE 1

Comparison of conventional and digital chest radiography

ConventionalDigital
Examination timeLonger; film development requiredShorter; can be viewed immediately; no film development required
Post-processing manipulation (e.g. magnification, windowing, greyscale inversion)Not possiblePossible; in the case of under- or over-exposed film, they do not need to be repeated, so the patient's radiation exposure is also reduced
Graphic qualityLowerHigher
StorageStorage space is required; chemicals and films are highly pollutingCompleted films can be stored digitally, which can be viewed simultaneously and remotely
Interpretation timeProlongedShorter
PriceMore expensiveCheaper
AccessibilityMore complicatedEasier