Estimation of the size of the media necessary to construct a medical image database.

To estimate the size of the media necessary to construct a medical image database, a statistical analysis was made of the radiological data in our hospital information system database. The distribution of the total radiological image data storage required during one working day can be regarded as a normal distribution, and the distribution per patient was different from a normal one. Therefore, the mean amount required for the data storage of radiological images during one working day is very useful in estimating the data storage required for radiological images during a given number of working days.