Whole-slide Image Converted By Orthanc gives issue When Display in Viewer

[Malik-Adil]

Whole-slide Image Converted By Orthanc gives issue When Display in Viewer.

I am converting .tiff image to dicom using Orthanc Dicomizer. with the command having a dataset.

./OrthancWSIDicomizer Source.tif --dataset=dataset.json

My dataset.json are

`{
"PatientID": "C123456789",
"PatientName": "SOME^PATIENT",
"PatientBirthDate": "19700101",
"PatientSex": "M",
"StudyID": "NONE",
"SeriesNumber": "1",
"ReferringPhysicianName": "SOME^PHYSICIAN",
"AccessionNumber": "123456789",
"Manufacturer": "MyManufacturer",
"ManufacturerModelName": "MyModel",
"DeviceSerialNumber": "MySerialNumber",
"SoftwareVersions": "MyVersion",
"ImageType": "DERIVED\PRIMARY\VOLUME\NONE",
"FocusMethod": "AUTO",
"ExtendedDepthOfField": "NO",
"AcquisitionContextSequence": [],
"AcquisitionDuration": "100",
"ContainerIdentifier": "CI_12345",
"IssuerOfTheContainerIdentifierSequence": [],
"ContainerTypeCodeSequence": [],
"IssuerOfTheContainerIdentifierSequence": [],

"FrameOfReferenceUID": "",
"DerivationDescription": "Derived from a lossy compressed image in NDPi format (JPEG baseline, quality factor 80%, compression ratio 9.7:1)",
"SpecimenDescriptionSequence": [
{
"SpecimenIdentifier": "Specimen^Identifier",
"SpecimenUID": "1.2.276.0.7230010.3.1.4.3252829876.4112.1426166133.871",
"IssuerOfTheSpecimenIdentifierSequence": [],
"SpecimenPreparationSequence": []
}
],
"SpecimenLabelInImage": "NO",
"BurnedInAnnotation": "NO"
}
`

[swederik]

Also posted here: OHIF/Viewers#589

[mrcolo]

Would appreciate some help on this issue.

[hackermd]

@Malik-Adil According to your comment at OHIF/Viewers#589, it seems that the pixel spacing of (one of) the images is incorrect and the problem seems to be an issue of the conversion software rather than the viewer.
However, we may want to add a few checks and log a meaningful error message.

[hackermd]

@Malik-Adil After giving it some further thought, I would be fine with using baseTotalPixelMatrixColumns / totalPixelMatrixColumns instead of pixelSpacing[0] / basePixelSpacing[0]. It's probably better to define the "resolution" using pixel rather than millimeter unit. @swederik do you have any concerns?