|
subjectkey |
GUID |
|
Required |
The NDAR Global Unique Identifier (GUID) for research subject |
NDAR*
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|
src_subject_id |
String |
20
|
Required |
Subject ID how it's defined in lab/project |
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Query
|
timepoint_label |
String |
50
|
Required |
Timepoint/visit label |
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Query
|
dti_age_days_dob |
Integer |
|
Required |
Age in days to date of birth from DTI scan date. This may differ from the T1 date due to an offset in scan date between structural and DTI data. |
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Query
|
dti_time_days_arbitrary_date |
Integer |
|
Recommended |
Time in days calculated by subtracting an arbitrary date from the DTI scan date. Allows the user to identify ACR or Living Phantom scans from the same time in an anonymized way. |
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Query
|
dti_time_days_to_t1 |
Integer |
|
Recommended |
Number of days delay time between T1 structural acquisition and DTI acquisition. |
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|
|
dti_release_version |
String |
5
|
Required |
Version of the DTI data release. This release number is independent of the Structural MRI release number. |
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Query
|
scanner_manufacturer_dti |
String |
30
|
Recommended |
Siemens or GE as extract from the MINC header |
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Query
|
scanner_software_versions_dti |
String |
100
|
Recommended |
MRI scanner software version |
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Query
|
mri_echo_time_dti |
Float |
|
Recommended |
TE |
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Query
|
mri_repetition_time_dti |
Float |
|
Recommended |
TR |
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Query
|
mri_excitation_pulse_angle_dti |
Float |
|
Recommended |
excitation pulse angle for DTI (degrees). Expected value is 90 degress. |
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Query
|
mri_band_width_dti |
Float |
|
Recommended |
Band width |
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Query
|
mri_nex_dti |
Integer |
|
Recommended |
Number of excitations (NEX) |
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Query
|
mri_field_of_view_raw_ap_dti |
Integer |
|
Recommended |
field of view in the anterior-posterior direction for the DWI images as acquired at the scanner before processing |
|
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Query
|
mri_field_of_view_raw_lr_dti |
Integer |
|
Recommended |
field of view in the left-right direction for the DWI images as acquired at the scanner before processing |
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Query
|
mri_voxel_width_raw_ap_dti |
Float |
|
Recommended |
Voxel resolution in Anterior-Posterior direction for raw DWI data. AP = y direction for axial acquisition. |
|
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Query
|
mri_voxel_width_raw_lr_dti |
Float |
|
Recommended |
Voxel resolution in Left-Right direction for raw DWI data. LR = x direction for axial acquisition. |
|
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Query
|
mri_voxel_width_raw_is_dti |
Float |
|
Recommended |
Voxel resolution in Inferior-Superior direction for raw DWI data. IS = z for axial acquisition. |
|
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|
Query
|
mri_number_slices_raw_dti |
Integer |
|
Recommended |
Number of slices for raw DWI data. |
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Query
|
mri_field_of_view_corr_ap_dti |
Integer |
|
Recommended |
Field of view (FOV)in anterior-posterior direction for DWI data after artifact remediation and distortion correction. |
|
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|
Query
|
mri_field_of_view_corr_lr_dti |
Integer |
|
Recommended |
Field of view (FOV)in left-right direction for DWI data after artifact remediation and distortion correction. |
|
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Query
|
mri_voxel_width_corr_ap_dti |
Float |
|
Recommended |
Voxel resolution in Anterior-Posterior direction for DWI data after artifact remediation and distortion correction. |
|
|
|
Query
|
mri_voxel_width_corr_lr_dti |
Float |
|
Recommended |
Voxel resolution in Left-Right direction for DWI data after artifact remediation and distortion correction. |
|
|
|
Query
|
mri_voxel_width_corr_is_dti |
Float |
|
Recommended |
Voxel resolution in Inferior-Superior direction for DWI data after artifact remediation and distortion correction. |
|
|
|
Query
|
mri_acquisition_matrix_dti |
String |
30
|
Recommended |
Image acquisition matrix size. |
|
|
|
Query
|
mri_image_matrix_dti |
String |
30
|
Recommended |
Final image matrix size. Compared with the acquisition matrix size, this indicates in the images were interpolated by the scanner. |
|
|
|
Query
|
mri_number_slices_corr_dti |
Integer |
|
Recommended |
Number of slices for final output data. |
|
|
|
Query
|
mri_slice_gap_dti |
Float |
|
Recommended |
Space between slices. Should be 0. (mm) |
|
|
|
Query
|
mri_num_replicates_b1000_dti |
Integer |
|
Recommended |
Number of replicates of the basic 6 directions at b = 1000 s/mm2. Obj1 & Obj2 should be = 4 |
|
|
|
Query
|
mri_num_replicates_b500_dti |
Integer |
|
Recommended |
Number of replicates of the basic 6 directions at b = 500s/mm2. Expected values: Obj1 = 0, Obj2 = 2 |
|
|
|
Query
|
mri_num_vol_b1000_corr_dti |
Integer |
|
Recommended |
Final number of b1000 volumes included after artifact removal. |
|
|
|
Query
|
mri_num_vol_b500_corr_dti |
Integer |
|
Recommended |
Number of b500 volumes included after artifact removal. |
|
|
|
Query
|
mri_epi_correction_dti |
String |
1
|
Recommended |
Is EPI correction performed? Y=yes, N=no |
|
|
|
Query
|
mri_epi_bspline_grid_size_dti |
Integer |
|
Recommended |
Value of the bspline grid size used for EPI correction. Total grid size is the sum of this number plus 3 additional grid points for the required border size. |
|
|
|
Query
|
dti_registration_target_type |
String |
2
|
Recommended |
Imaging modality of target image used for EPI correction and/or reorientation. T1, T2 or PD |
|
|
|
Query
|
qc_num_volumes_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Number of acquired volumes. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_num_slices_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Number of slices per DWI volume. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_in_plane_resolution_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Axial in-plane resoultion. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_slice_thickness_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Slice thickness. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_zero_fill_acq_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Protocol specified no zero filling at the time of acquisition. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_nex_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Protocol specifies NEX=1. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_oblique_acq_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Protocol specified pure axial acquisition only. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_echo_time_dti |
Integer |
|
Recommended |
Quality score for protocol violations; 0=no violation, 1=violation. Echo time must be the same for all replicates, including b1000 and b500. |
0; 1
|
0 = No violation; 1 = Violation
|
|
Query
|
qc_gain_scale_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Gain differences between replicates, or scaling differences between b0 and DWI images. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_brain_coverage_top_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Was the top of the brain fully included in acquisition? |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_brain_coverage_bottom_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Was the bottom of the brain (cerebellum) fully included in acquisition? |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_ghosting_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of ghosting. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_nosie_artifacts_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of noise, spike noise, RF, and recon artifacts. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_motion_signal_drop_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of signal dropouts due to motion. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_motion_eddy_dist_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of misregistration due to motion and eddy distortion. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_epi_dist_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of susceptibility related EPI distortion. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_cardiac_artifacts_dti |
Integer |
|
Recommended |
Quality score for raw DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Severity of cardiac pulsation artifacts. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_qual_motion_eddy_corr_dti |
Integer |
|
Recommended |
Quality score for corrected DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Quality of the correction of misregistration due to motion and eddy distortion. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_qual_epi_corr_dti |
Integer |
|
Recommended |
Quality score for corrected DWI data; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Quality of correction for EPI distortion. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_frontal_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Frontal lobes. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_parietal_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Parietal lobes. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_occipital_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Occipital lobes. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_temporal_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Temporal lobes. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_cerebellum_bs_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Cerebellum and brainstem. Likely affected by cardiac pulsation. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_central_brain_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Central brain regions (Ask Ami - midbrain?). |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_top_brain_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Top of the brain. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
qc_region_global_dti |
Integer |
|
Recommended |
Regional quality score for tensor derived quantities; 0=perfect, 1=minor problem, 2=moderate problem, 3=major problem. Whole brain, overall quality of tensor derived maps. |
0; 1; 2; 3; 4
|
0 = Perfect; 1 = Minor problem; 2 = Moderate problem; 3 = Major problem
|
|
Query
|
mri_tensor_fit_type_dti |
String |
5
|
Required |
Algorithm used for tensor fitting. Options are N1=non-linear, R1=RESTORE robust, iR1=iRESTORE robust fitting. The option selected provided the best results. |
|
|
|
|
dti_fa_image_nii |
File |
|
Recommended |
Fractional Anisotropy image in nifti format. |
|
|
|
|
dti_ra_image_nii |
File |
|
Recommended |
Relative Anisotropy image in nifti format. |
|
|
|
|
dti_li_image_nii |
File |
|
Recommended |
Lattice Index image in nifti format. |
|
|
|
|
dti_tr_image_nii |
File |
|
Recommended |
Trace ADC image in nifti format. |
|
|
|
|
dti_ev_image_nii |
File |
|
Recommended |
Eigenvalue image in 4D nifti format. Volumes are in the order lambda1, lambda2, lambda3. |
|
|
|
|
dti_cs_image_nii |
File |
|
Recommended |
Chi-Square map in nifti format. Measure of the goodness of fit of the data. |
|
|
|
|
dti_out_image_nii |
File |
|
Recommended |
Outlier map in nifti format. Created only if RESTORE or iRESTORE robust fitting was used. Indicates number of outliers rejected as a percent of the total number of volumes less the degrees of freedom (dof=7 for tensor fitting). |
|
|
|
|
dti_dec_image_nii |
File |
|
Recommended |
Directional Encoded Color (DEC) image in nifti format. |
|
|
|
|
dti_mask_image_nii |
File |
|
Recommended |
Mask image used in tensor fitting |
|
|
|
|
dti_tal_noscale_t1_nii |
File |
|
Recommended |
T1W image in Tal no-scale space in nifti format |
|
|
|
|
dti_tal_noscale_t2_nii |
File |
|
Recommended |
T2W image in Tal no-scale space in nifti format |
|
|
|
|
dti_tal_noscale_pd_nii |
File |
|
Recommended |
PDW image in Tal no-scale space in nifti format |
|
|
|
|
dti_dwi_raw_images |
File |
|
Recommended |
All DWI images that passed minimum quality assessment. Images are saved slice by slice in raw floating point format. .list, .path and .bmtxt files are provided for opening in TORTOISE. Provided in a .tar.gz file. |
|
|
|
|
dti_dwi_raw_corrected_images |
File |
|
Recommended |
All DWI images that passed minimum quality assessment, after artifact remediation and distortion correction, plus computed noise correction for interpolation, tensor, amplitude and mask images. Compatible with TORTOISE, and raw floating point images. |
|
|
|
|
dti_tensor_images |
File |
|
Recommended |
Computed tensor, amplitude and mask images. Compatible with TORTOISE. All tensor derived quantities can be computed from these files easily in TORTOISE. |
|
|
|
|
dti_dwi_raw_full_images |
File |
|
Recommended |
Raw uncorrected images in raw floating point format, includes all b500 images as well as b1000 images - used only for Living Phantom data. |
|
|
|
|
dti_dwi_raw_corr_full_images |
File |
|
Recommended |
Raw corrected DWI images in floating point format, including all b500 and b1000 images - used only for Living Phantom |
|
|
|