{"denoms":[{"counts":[{"groupId":"BG000","value":"16"}],"units":"Participants"}],"groups":[{"description":"Patients undergo FBCT once before treatment and once weekly for a total of 6-7 scans, dual CBCT up to 5 times weekly for a total of 33-35 scans, 2-D x-ray with Varian kV OBI 5 times weekly for a total of 33-35 scans, 2-D x-ray with Brain Lab ExacTrac 5 times weekly for a total of 33-35 scans, 2-D x-ray with Varian MV OBI once weekly for a total of 6-7 scans, and EPID imaging up to 5 times weekly for a total of 33-35 scans while undergoing IGART.\n\ncomputed tomography: Undergo FBCT\n\ncone-beam computed tomography: Undergo dual CBCT\n\nradiography: Undergo 2-D x-ray with Varian kV OBI\n\nradiography: Undergo 2-D x-ray with Brain Lab ExacTrac\n\nradiography: Undergo 2-D x-ray with Varian MV OBI\n\nelectronic portal imaging: Undergo EPID imaging\n\nimage-guided adaptive radiation therapy: Undergo IGART","id":"BG000","title":"Diagnostic (Imaging Technology)"}],"measures":[{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"<=18 years"},{"measurements":[{"groupId":"BG000","value":"9"}],"title":"Between 18 and 65 years"},{"measurements":[{"groupId":"BG000","value":"7"}],"title":">=65 years"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Age, Categorical","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","spread":"10","value":"63"}]}]}],"dispersionType":"STANDARD_DEVIATION","paramType":"MEAN","title":"Age, Continuous","unitOfMeasure":"years"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Female"},{"measurements":[{"groupId":"BG000","value":"16"}],"title":"Male"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Sex: Female, Male","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Hispanic or Latino"},{"measurements":[{"groupId":"BG000","value":"16"}],"title":"Not Hispanic or Latino"},{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Unknown or Not Reported"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Ethnicity (NIH/OMB)","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"American Indian or Alaska Native"},{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Asian"},{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Native Hawaiian or Other Pacific Islander"},{"measurements":[{"groupId":"BG000","value":"2"}],"title":"Black or African American"},{"measurements":[{"groupId":"BG000","value":"13"}],"title":"White"},{"measurements":[{"groupId":"BG000","value":"0"}],"title":"More than one race"},{"measurements":[{"groupId":"BG000","value":"1"}],"title":"Unknown or Not Reported"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Race (NIH/OMB)","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"16"}]}],"title":"United States"}],"paramType":"NUMBER","title":"Region of Enrollment","unitOfMeasure":"participants"}]}