How to add multiple series to a single dicom file

[Sriharsha-medevplus]

Something like this

[WilliamDoman]

I'm struggling to figure this one out also. It seems like it would be simple by adding the correct tags but my attempts have rendered a useless dicom file every time.

DICOM FILE
└── DICOM Dataset
├── Study Instance UID (0020,000D) → "1.2.840.12345.67890"
├── Patient Name (0010,0010) → "John Doe"
├── Accession Number (0008,0050) → "123456"
├── Source Image Sequence (0008,2112) → Holds multiple series
│ ├── Series 1 (DicomDataset)
│ │ ├── Series Instance UID (0020,000E) → "1.2.840.12345.67890.1"
│ │ ├── Series Number (0020,0011) → 1
│ │ ├── Modality (0008,0060) → "OT"
│ │ ├── Image 1 (Pixel Data 7FE0,0010)
│ │ ├── Image 2 (Pixel Data 7FE0,0010)
│ ├── Series 2 (DicomDataset)
│ │ ├── Series Instance UID (0020,000E) → "1.2.840.12345.67890.2"
│ │ ├── Series Number (0020,0011) → 2
│ │ ├── Modality (0008,0060) → "OT"
│ │ ├── Image 1 (Pixel Data 7FE0,0010)

I've also tried using the Frame Content Sequence without success

DICOM FILE
└── Study Information
├── Study Instance UID (0020,000D)
├── Patient Name (0010,0010) → "John Doe"
├── Accession Number (0008,0050) → "123456"
├── Source Image Sequence (0008,2112)
├── Series 1 (DicomDataset)
│ ├── Series Instance UID (0020,000E)
│ ├── Number of Frames (0028,0008) = 30
│ ├── Frame Content Sequence (0020,9111)
│ │ ├── Frame 1 → Stack Position 1, Acquisition Time 12:01:00
│ │ ├── Frame 2 → Stack Position 2, Acquisition Time 12:01:01
│ │ ├── Frame 3 → Stack Position 3, Acquisition Time 12:01:02
├── Series 2 (DicomDataset)
│ ├── Series Instance UID (0020,000E)
│ ├── Single Frame Images (No FrameContentSequence needed)

[gofal]

I guess you mixed something up. DICOM-Standard (please read it carefully!) does not provide an option to ass the pixel data of multple series into one single file.
Usually each image has its own file. But you can have Multiframe files, where there are several frames in one file, but they all have to belong to one stack, that means they have to belong strongly together, at least they have to be within one series.

Maybe you want to generate a DicomDirectory? That is, if you have a (slow) media with a lot if images, then a userinterface would have all the images first, before it can build up a list of all available studies and series. To speed this up, there is often one file called "DICOMDIR" in the root directory. but this file only contains some basic metadata about the available images and the filename relative to the DICOMDIR-file where the UI then can read the whole content and the actual pixel data.