Provenance Fields¶
Overview of provenance attributes collected:
Field | superficial | transformed | PAR-REC | DICOM | FIF | CNT |
---|---|---|---|---|---|---|
path | yes | yes | yes | yes | yes | yes |
hostname | yes | yes | yes | yes | yes | yes |
user | yes | yes | yes | yes | yes | yes |
location | yes | yes | yes | yes | yes | yes |
added | yes | yes | yes | yes | yes | yes |
version-added | yes | yes | yes | yes | yes | yes |
size | yes | yes | yes | yes | yes | yes |
hash | yes | yes | yes | yes | yes | yes |
created | yes | yes | yes | yes | yes | yes |
transient | yes | yes | yes | yes | yes | yes |
modality | yes | inherited | yes | yes | yes | yes |
acquired | inherited | yes | yes | yes | yes | |
duration | inherited | yes | yes | yes | yes | |
subject | inherited | yes | yes | yes | yes | |
dimensions | yes | maybe | yes | yes | ||
project | inherited | yes | ||||
protocol | inherited | yes | yes | |||
subject-position | inherited | yes | yes | |||
water-fat-shift | inherited | yes | yes | |||
transformation | yes | |||||
parent | yes | |||||
code | yes | |||||
logtext | yes | |||||
script | yes | |||||
args | yes | |||||
kwargs | yes | |||||
sampling-frequency | inherited | yes | yes | |||
fif-type | yes | |||||
lowpass | yes | |||||
highpass | yes | |||||
bad-channels | yes | |||||
projection-description | yes | |||||
seriesuid | yes | |||||
filesInSeries | yes | |||||
technique | inherited | yes | ||||
repetition-time | inherited | yes | ||||
field-of-view | yes | |||||
epi-factor | inherited | yes | ||||
magnetization-transfer-contrast | inherited | yes | ||||
diffusion | inherited | yes | ||||
slice-thickness | yes | |||||
slice-orientation | yes | |||||
echo-time | inherited | yes | ||||
flip-angle | inherited | yes | ||||
inversion-time | inherited | yes |
path¶
The last known path to the file.
hostname¶
Hostname of the computer on which the file resides.
user¶
Name of the user that created the file and/or registered its provenance.
location¶
A string that combines computer and filesystem path.
added¶
Date and time that the provenance for this file was registered.
version-added¶
A floating point number reflecting the niprov version used to create the provenance record.
size¶
File size.
hash¶
An MD5 hash of the file’s binary contents.
created¶
Last known modified date of the file as reported by the OS.
transient¶
Whether the file is deemed temporary.
modality¶
Type of data; MRI, DWI, MEG, EEG or other.
acquired¶
When the data was collected.
duration¶
Duration of the acquisition in seconds.
subject¶
The participant whose brain was imaged.
dimensions¶
Dimensions of the image. Order of dimensions dependent on format; in principle follows (where applicable); in-slice, number of slices, time. E.g. x,z,y,t.
project¶
The name of the research project.
protocol¶
The name of the pulse sequence used.
subject-position¶
The position and orientation of the subject during during the scan. E.g. head first supine.
water-fat-shift¶
Water fat shift value.
transformation¶
The name of the transformation applied to generate this derivative image.
parent¶
The file that this file is a transformed version of.
code¶
The command used to generate this image.
logtext¶
The commandline output of the transformation.
script¶
The path to the code file containing the transformation routine.
args¶
The positional arguments passed to a python-based transformation command.
kwargs¶
The keyword arguments passed to a python-based transformation command.
sampling-frequency¶
How many samples were acquired per second.
fif-type¶
Type of MNE fiff file. One of ‘raw’, ‘ave’, ‘epo’, ‘cov’, ‘fwd’ or ‘trans’.
lowpass¶
Cutoff frequency of the lowpass filter applied, in Hz.
highpass¶
Cutoff frequency of the highpass filter applied, in Hz.
bad-channels¶
Names of channels/sensors marked as bad.
projection-description¶
Description of projection vectors in the data file.
seriesuid¶
A unique identifier for files in a series. Corresponds to SeriesInstanceUID in the DICOM format.
filesInSeries¶
A list of paths to files that are part of this series.
technique¶
The imaging technique that the protocol uses.
repetition-time¶
Time to scan one volume
field-of-view¶
The extent of the observable world that is seen by the image. This is a list of three values.
epi-factor¶
Echo-planar-imaging factor.
magnetization-transfer-contrast¶
A technique that uses the transfer of nuclear spin polarization and/or spin coherence from one population of nuclei to another population of nuclei.
diffusion¶
Whether this is a diffusion image. Boolean.
slice-thickness¶
Thickness in mm of the slices. In case the file contains multiple images, this applies to the first image.
slice-orientation¶
Spatial orientation of the slices. In case the file contains multiple images, this applies to the first image.
echo-time¶
The time in milliseconds between the application of the 90° pulse and the peak of the echo signal in Spin Echo and Inversion Recovery pulse sequences.
flip-angle¶
The angle to which the net magnetization is rotated or tipped relative to the main magnetic field direction via the application of an RF excitation pulse.
inversion-time¶
The time period between the 180° inversion pulse and the 90° excitation pulse in an Inversion Recovery pulse sequence.