Hello, I am trying to open ultrasound dicom images from a Philips ultrasound device with MITK and have a problem with the length calibration. The measured lengths (and areas) are always off by at least a magnitude compared to a Philips dicom viewer. However, I would really like to be able to use the comfortable contrast and measurement tools of MITK.
So my question is, what can be the reason for this mis-calibration and how could I resolve this? In the image properties, the PixelSpacingInterpretationString is "Unknown spacing". This must be because such a parameter is not defined in my dicom images. With Matlab I was able to open the images and read the parameters. The pixel spacing is stored in a parameter called: SequenceOfUltrasoundRegions.Item_1.PhysicalDeltaX (PhysicalDeltaY) in units of cm/pixel. As I am new to the topic of the dicom format and MITK I am not sure what additional information you might need. Thanks for your help! Best regards, Vera
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