# Measurements `dcmqi` provides command line tools to convert lists of measurements calculated from the images for the regions defined by rasterized segmentations into DICOM representation. Specifically, the DICOM representation suitable for such data is DICOM Structured Reporting (SR) [Template ID 1500](http://dicom.nema.org/medical/dicom/current/output/chtml/part16/chapter_A.html#sect_TID_1500). Each measurement is associated with a specific segment in the corresponding DICOM Segmentation object. For each measurements, Quantity, Units and Derivation (when appropriate) must be specified as coded tuples. Multiple measurements can be assigned in a list for the individual segment. At the moment, the measurements must be specified in a JSON file, such as the one shown in [this example](https://github.com/QIICR/dcmqi/blob/master/doc/examples/sr-tid1500-ct-liver-example.json). [It is in our plans](https://github.com/QIICR/dcmqi/issues/165) to provide support of the CSV format for bi-directional conversion of the measurements data. You can use this online validator to check if the JSON file you are passing to the converter is conforming to the schema: . --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://qiicr.gitbook.io/dcmqi-guide/opening/cmd_tools/sr.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.