{"denoms":[{"counts":[{"groupId":"BG000","value":"1"}],"units":"Participants"}],"groups":[{"description":"Subjects will have a FLT PET/CT and a MRI prior to starting the preparative regimen for transplant and another of each scan 100 days after transplant.\n\nFLT PET/CT: Functional marrow imaging using the FLT PET/CT will be performed prior to preparative for HSCT and approximately 3 months post-transplant (Day 100 +/- 5 days).\n\nMRI: MRI imaging will be performed prior to preparative for HSCT and approximately 3 months post-transplant (Day 100 +/- 5 days).","id":"BG000","title":"Imaging Studies"}],"measures":[{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"<=18 years"},{"measurements":[{"groupId":"BG000","value":"1"}],"title":"Between 18 and 65 years"},{"measurements":[{"groupId":"BG000","value":"0"}],"title":">=65 years"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Age, Categorical","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"0"}],"title":"Female"},{"measurements":[{"groupId":"BG000","value":"1"}],"title":"Male"}]}],"paramType":"COUNT_OF_PARTICIPANTS","title":"Sex: Female, Male","unitOfMeasure":"Participants"},{"classes":[{"categories":[{"measurements":[{"groupId":"BG000","value":"1"}]}],"title":"United States"}],"paramType":"NUMBER","title":"Region of Enrollment","unitOfMeasure":"participants"}]}