image in EZDiom builtin viewer appears negative

    We are using Conquest 1.4.19c
    Acquired images are coming correctly and can be viewed positive.
    Also sending to DICOM viewing station is ok.
    But, if we view the images with the built-in EZDicom viewer they appear negative. ;(
    We cannot find a setting to change this.
    Question:
    Is there a hidden setting to convert the image to positive on the monitor?

    best regards en alvast bedankt :)
    Gerrit

    correction for this issue.
    I just found that existing images in the conquest pacs are ok but images
    acquired on the "new" Fuji FCR XG-1 have this "negative image" trouble.
    They show up as positive on the Fujimonitor and on the Conquest monitor as well
    but as soon we start the EZDicom viewer by pressing F2 they swap to negative.
    Also we just found that if we send the Fuji-images to another viewer the same phenomenom
    happens (images are displayed negative) but also here, existing images on the conquest pacs

    acquired on another machine are ok
    met vriendelijke groeten,
    Gerrit

    Hi,


    the image has Photometric Interpretation MONOCHROME1. This is rarely used and identifies that lowest pixel value should be displayed WHITE.


    So EZDicom is correct, all others are wrong.


    Marcel

    Hi Marcel,

    I know that that trouble is caused by the Fuji CFR, 0028;0004 is set to monochrome1 but still the image
    is displayed as monochrome 2 (positive) in Conquest.
    As soon I select the EZDicom viewer it shows up as monochrome 1 (negative)
    For that reason I was wondering if Conquest has the possibility to modify the header, DICOM tag 0028;0004.
    Of course it should be possible to modify the Fuji CFR but it is a very old system and very much protected,
    very difficult to reach the DICOM settings.
    Gerrit

    Sure that is easy, add at end of dicom.ini:


    ImportConverter0 = set 0028,0004 to "MONOCHROME2"


    or


    [lua]

    ImportConverter0 =Data.PhotometricInterpretation = 'MONOCHROME2'


    This will modify the header for all new images.


    To test it, go to browser, modify this series (advanced) and type:


    Data.PhotometricInterpretation = 'MONOCHROME2'


    Start modify


    Marcel

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