Data summary ------------ Title: PET phantom data from Siemens Biograph mMR with Carbon-11 scanned over 12 half-lives. Summary: List mode & accompanying raw data for 12 PET acquistions with DIXON, UTE and CT based u-maps. PET Aquisitions: PET raw data from Siemens Biograph mMR PET-MR scanner with VE11P software. Consists of twelve acquisitions of a 5.5L bottle containing carbon-11, each acquisition approximately one 11C half-life apart (20 min). Bottle was not moved between acquisitions. Bed was not moved between acquisitions. Scans were acquired in a single bed position with upper and lower head-only coils in position. Activity concentration of 11C in the bottle was measured from 10 x 0.2 mL samples taken from the bottle prior to the first scan and measured on a cross-calibrated Perkin-Elmer Wizard 2470 10-detector gamma-counter. Gamma-counter data for this measurement is not included. Concentration at the start of the first PET scan was measured to be 52.804 kBq/mL. Attenuation Maps: MR-attentuation u-maps were acquired with each PET scan using the "HiRes" DIXON sequence recommended by Siemens for brain scans. A single UTE MR-attentuation u-map was acquired with the first PET scan. A compatible CT-attenuation u-map was created from a low dose CT scan from a GE710 Discovery PET-CT scanner which was coregistered with the single UTE. Siemens hardware u-maps for bed and coils are not included. PET Images: The static PET images automatically reconstructed after acquisition on the Biograph mMR are included for basic comparison purposes. An attenuation corrected and non-attenuation corrected PET scan from the first PET acqusition are included. Folders: pet-raw: Contains 12 subfolders, each containing 4 pairs of PET raw data in dcm/BF format. Subfolder names, with PET acqusition start time and duration in seconds is listed in the table below. 30001Head_1_PetAcquisition_Raw_Data 12:26:01 1200 30004Head_2_PetAcquisition_Raw_Data 12:47:11 600 30007Head_3_PetAcquisition_Raw_Data 13:08:10 600 30010Head_4_PetAcquisition_Raw_Data 13:28:48 600 30013Head_5_PetAcquisition_Raw_Data 13:49:13 600 30016Head_6_PetAcquisition_Raw_Data 14:09:32 600 30019Head_7_PetAcquisition_Raw_Data 14:29:48 600 30022Head_8_PetAcquisition_Raw_Data 14:50:03 600 30025Head_9_PetAcquisition_Raw_Data 15:10:19 600 30028Head_10_PetAcquisition_Raw_Data 15:30:33 600 30031Head_11_PetAcquisition_Raw_Data 15:50:46 600 30034Head_12_PetAcquisition_Raw_Data 16:10:59 600 umaps: Contains 3 subfolders with DIXON, UTE and CT u-umaps in DICOM (IMA) format. 1. CTAC: u-map based on CTAC coregistered to UTE. 2. MRAC-HiRes: twelve DIXON "HiRes" u-maps for each PET acquisition. 3. MRAC-UTE: single UTE u-map from first PET acquisition. pet-images-01: Contains 2 subfolders with attenuation corrected (AC) and non-attenuation corrected (NAC) static PET images automatically reconstructed from acqusition of first scan. Images are in DICOM (IMA) format. 1. PETAC 2. PETNAC