Questions about whether dicom file format little endian vr (either explicit or implicit) is available in standard clarius membership DICOM for research purposes

[georgecaterkikko]

I am the Clinical Product Consultant at Kikko Health, we are the UK distributor for Clarius. Please see request from researcher below.

"Hi George, so the dicom file format should be little endian vr (either explicit or implicit). The bit depth (image information), should be ideally 12 bit or higher but 12 bit is fine here. Jpeg saves 8 bit (256 greyscale information), so if the dicom is only saving as 8 bit this also will only have 256 grayscale, whereas 12 bit has 4096 greyscale shades, much higher image detail.

See here for summary tab info in saved file metadata we would be looking for:

• Bits Allocated (0028, 0100): This is usually 16 for a 12-bit image, meaning the computer sets aside a 16-bit storage slot for every pixel.
• Bits Stored (0028, 0101): This is the crucial tag. If it reads 12, your image contains true 12-bit grayscale data (4096 shades) packed inside that 16-bit slot. If it reads 8, it is an 8-bit image (256 shades).

Hope this helps. Perhaps send this on as is to get the technical guys to answer if we get true 12 bit dicom in the standard software setup. If we do thats fine."

Please advise asap if possible. My email is george.cater@kikkohealth.com

Thanks!

[georgecaterkikko]

In summary, can DICOM (12 bit) not Jpeg (8 bit) be acquired when exporting images for raw / grey scale data within the standard Clarius membership or does an additional Research package need to be purchased?

Thanks

[clariusk]

we ony have 8 bit data output, the research package is still 8 bits for raw envelope, more dynamic range would be seen in the IQ or RF domains which is included in the research package