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Qualitative and quantitative evaluation of compression techniques for medical images in radiology and oncology

New and modern image modalities generate digital images and increase the amount of data in a hospital. Without data compression techniques the practical use of many applications like teleradiology is not usable. A typical CT-series is about 25-50 MB. Many non-standardized lossy data compression techniques have been developed for the clinical environment. This paper describes qualitative and quantitative evaluation of three standardized compression methods, JPEG, MPEG, and H.261 for clinical cases. The evaluation shows that JPEG and MPEG can actually still compete with special non-standardized medical image compression methods and the compressed images can be decompressed with very little effort.