Before the DICOM format, NEMA (National Electrical Manufacturers Association) proposed two formats NEMA-1 and NEMA-2. (This is why DICOM is sometimes referred to as DICOM-3.) Several manufactures had there own proprietary variations on the NEMA format (e.g. SPI, IS&C).
Although there is some similarity between the NEMA and DICOM formats, Medical Connections does not handle enquirers relating to the NEMA. For more information on the NEMA format and especially on the conversion between formats we would recommend that you speak to Yves Martel at TomoVision or email sales(AT)TomoVision.com