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This asset requires the Clara Deploy SDK. Follow the instructions on the Clara Ansible page to install the Clara Deploy SDK.
The Colon Tumor Segmentation pipeline is one of the reference pipelines provided with Clara Deploy SDK. A pre-trained model for volumetric (3D) segmentation of the colon from a mono-modal CT image is used in the pipeline. This pipeline depends on the Clara Deploy DICOM Adapter to receive DICOM images, specifically single-channel 3D CT images. Once the DICOM instances are stored, the pipeline is started to first convert the DICOM instances to a volume image in MetaIO format and then processes the input volume image with the Colon Tumor Segmentation AI model. The AI model generates the labeled segmentations (within the colon) as a mask on slices of the volume of the same size as the input. The colon tumor is labeled as 1, and the background is labeled as 0. In its final steps, the pipeline outputs the mask as a new DICOM series using the original study instance UID; also, it outputs the original and segmented volumes to the Clara Deploy Render Server for visualization on the Clara Dashboard.
The Colon Tumor Segmentation pipeline is defined in the Clara Deploy pipeline definition language. This pipeline utilizes built-in reference containers to construct the following set of operators:
The following is the details of pipeline definition, with comments describing each operator's functions as well as input and output.
api-version: 0.4.0 name: colon-tumor-pipeline operators: # dicom reader operator # Input: '/input' mapped directly to the input of the pipeline, which is populated by the DICOM Adaptor. # Output:'/output' for saving converted volume image in MHD format to file whose name # is the same as the DICOM series instance ID. - name: dicom-reader description: Converts DICOM instances into MHD, one file per DICOM series. container: image: clara/dicom-reader tag: latest input: - path: /input output: - path: /output # colon-tumor-segmentation operator # Input: `/input` containing volume image data, MHD format, with a single volume. # Output: `/output` containing segmented volume image, MHD format. # `/publish` containing original and segmented volume images, MHD format, # along with rendering configuration file. - name: colon-tumor-segmentation description: Segmentation of colon tumor inferencing using DL trained model. container: image: clara/ai-colontumor tag: latest requests: gpu: 1 memory: 8192 input: - from: dicom-reader path: /input output: - path: /output name: segmentation - path: /publish name: rendering models: # change the following line to match the name created for the model - name: segmentation_ct_colon_tumor_v1 # dicom writer operator # Input1: `/input` containing a volume image file, in MHD format, name matching the DICOM series instance UID. # Input2: `/dicom` containing original DICOM instances, i.e. dcm file. # Output: `/output` containing the DICOM instances converted from the volume image, with updated attributes # based on original DICOM instances. - name: dicom-writer description: Converts MHD into DICOM instance with attributes based on the original instances. container: image: clara/dicom-writer tag: latest input: - from: colon-tumor-segmentation name: segmentation path: /input - path: /dicom output: - path: /output name: dicom # register-volume-images-for-rendering operator # Input: Published original and segmented volume images, MHD format, along with rendering configuration file # from colon-tumor-segmentation operator. # Output: N/A. Input data will be sent to the destination, namely `renderserver` for Render Server DataSet Service. - name: register-volume-images-for-rendering description: Register volume images, MHD format, for rendering. container: image: clara/register-results tag: latest command: ["python", "register.py", "--agent", "renderserver"] input: - from: colon-tumor-segmentation name: rendering path: /input # register-dicom-output operator # Input: `/input` containing DICOM instances in the named output, `dicom` from dicom-writer operator. # Output: N/A. Input data will be sent to the destinations, namely DICOM devices, by the Clara DICOM SCU agent. - name: register-dicom-output description: Register converted DICOM instances with Results Service to be sent to external DICOM devices. container: image: clara/register-results tag: latest command: ["python", "register.py", "--agent", "ClaraSCU", "--data", "[\"MYPACS\"]"] input: - from: dicom-writer name: dicom path: /input
Please refer to the
Quick Start Guide on how to register a pipeline, configure the DICOM Adapter, and
execute the pipeline.
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Release Notes, the Getting Started Guide, and the SDK itself are available at the NVIDIA Developer forum: (https://developer.nvidia.com/clara).
For answers to any questions you may have about this release, visit the NVIDIA Devtalk forum: (https://devtalk.nvidia.com/default/board/362/clara-sdk/).