{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","spread":"63.77","value":"93.55"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"44"}],"units":"Participants"}],"description":"The degree of tumor volume, tumor motion and patient anatomy change during treatment with photon beam radiotherapy using 4D or 3D CT Scans and/or a serial of MR Imaging.","dispersionType":"Standard Deviation","groups":[{"description":"Weekly 3D/4D CT scans during radiation therapy. MRI may be used in addition to or instead of CT depending on the location of the tumor and the decision of the treating physician.\n\nCT scan: Weekly 3D/4D CT scan","id":"OG000","title":"Completed Imaging"}],"paramType":"MEAN","reportingStatus":"POSTED","timeFrame":"9 weeks","title":"Tumor Volume","type":"PRIMARY","unitOfMeasure":"cm^3"}