| DICOM PS3.17 2024d - Explanatory Information |
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In this example, the patient will shortly be undergoing a complex cardiac surgery. A 3D manufacturing model (encoded in binary STL) was created to manufacture a surgical planning aid representing the patient's unique anatomy.
To begin, a series of CT images (CT-02) and a series of MR images (MR-01) were registered using CT-02's frame of reference as the base coordinate system and then fused. An initial version of the model was derived and reviewed by the surgical team who requested that some of the anatomy surrounding the heart be removed. A second version of the model was created on July 16, 2017 at 1:04:34 PM then stored in a DICOM instance at 1:33:01 PM. The CT and MR data were acquired at earlier dates.
The Encapsulated STL file shown in this example is the second version..
Both versions of the STL were created in the coordinate system of CT-02; so they all share the same Frame of Reference value.
Note: Mapping to other Frames of Reference of secondary source series would be handled via registration objects.
A preview image (optional) showing the rendered 3D object was created and included with the encapsulated STL as an icon image.
The creator of the model inscribed the patient's medical record number on a side of the model to avoid the possibility of a wrong patient error.
Table IIII.2-1. Fused CT/MR Derived Encapsulated STL Example
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A sequence referencing CT-02 and MR-01 source images because both were used. |
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CID 7060 “Encapsulated Document Source Purpose of Reference” |
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CID 7060 “Encapsulated Document Source Purpose of Reference” |
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In this example, the goal is to help plan the surgery, so the value is "Planning Intent". |
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<Content of Table C.7-11b "Image Pixel Macro Attributes" not shown> |
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| DICOM PS3.17 2024d - Explanatory Information |
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