Thank you for your quick reply.
I’m not familiar with IntendedFor
or B0FieldIdentifier/Source
. I was not asked to do anything related to them when using bidscoin.
(btw, I used “dicomsorter, bidsmapper, bidscoiner” to convert dicom to nifti in bids format)
I guess the session name would be fine, because it was taken as the subject name in my analysis.
The bids validation report showed one error, which I don’t know how to fix it:
The fmap json files as follows:
AP:
{
"Modality": "MR",
"MagneticFieldStrength": 3,
"ImagingFrequency": 123.26,
"Manufacturer": "Siemens",
"ManufacturersModelName": "Prisma_fit",
"DeviceSerialNumber": "167017",
"StationName": "MRC35056",
"BodyPartExamined": "BRAIN",
"PatientPosition": "HFS",
"ProcedureStepDescription": "Functional^Dr. Chai",
"SoftwareVersions": "syngo MR E11",
"MRAcquisitionType": "2D",
"SeriesDescription": "FieldMapping-3mm_se_AP",
"ProtocolName": "FieldMapping-3mm_se_AP",
"ScanningSequence": "EP",
"SequenceVariant": "SK",
"ScanOptions": "FS",
"SequenceName": "epse2d1_80",
"ImageType": [
"ORIGINAL",
"PRIMARY",
"M",
"ND",
"NORM",
"MOSAIC"
],
"SeriesNumber": 9,
"AcquisitionTime": "14:59:54.772500",
"AcquisitionNumber": 1,
"SliceThickness": 3,
"SpacingBetweenSlices": 3,
"SAR": 0.314045,
"EchoTime": 0.0512,
"RepetitionTime": 5.32,
"FlipAngle": 90,
"PartialFourier": 1,
"BaseResolution": 80,
"ShimSetting": [
211,
-11934,
-6310,
487,
11,
-60,
4,
20
],
"TxRefAmp": 231.041,
"PhaseResolution": 1,
"ReceiveCoilName": "Head_32",
"ReceiveCoilActiveElements": "HEA;HEP",
"PulseSequenceDetails": "%CustomerSeq%\\cmrr_mbep2d_se",
"WipMemBlock": "8c5ee6b8-fef7-4c78-8a08-9bf145a3e8ee||Sequence: R016 ve11c/master r/34fb20f; Nov 20 2017 15:30:40 by eja",
"CoilCombinationMethod": "Sum of Squares",
"ConsistencyInfo": "N4_VE11C_LATEST_20160120",
"MatrixCoilMode": "SENSE",
"PercentPhaseFOV": 100,
"PercentSampling": 100,
"EchoTrainLength": 80,
"PhaseEncodingSteps": 80,
"AcquisitionMatrixPE": 80,
"ReconMatrixPE": 80,
"BandwidthPerPixelPhaseEncode": 25,
"EffectiveEchoSpacing": 0.0005,
"DerivedVendorReportedEchoSpacing": 0.0005,
"TotalReadoutTime": 0.0395,
"PixelBandwidth": 2315,
"DwellTime": 2.7e-06,
"PhaseEncodingDirection": "j-",
"SliceTiming": [
5.2125,
5.125,
5.035,
4.9475,
4.86,
4.77,
4.6825,
4.595,
4.505,
4.4175,
4.33,
4.24,
4.1525,
4.065,
3.975,
3.8875,
3.8,
3.71,
3.6225,
3.535,
3.445,
3.3575,
3.27,
3.18,
3.0925,
3.005,
2.915,
2.8275,
2.74,
2.65,
2.5625,
2.475,
2.385,
2.2975,
2.21,
2.12,
2.0325,
1.945,
1.855,
1.7675,
1.68,
1.59,
1.5025,
1.415,
1.325,
1.2375,
1.15,
1.06,
0.9725,
0.885,
0.795,
0.7075,
0.62,
0.53,
0.4425,
0.355,
0.265,
0.1775,
0.09,
0
],
"ImageOrientationPatientDICOM": [
1,
-0.000366928,
-0.000743092,
-1.03987e-10,
0.896645,
-0.44275
],
"ImageOrientationText": "Tra>Cor(-26.3)>Sag(-0.0)",
"InPlanePhaseEncodingDirectionDICOM": "COL",
"ConversionSoftware": "dcm2niix",
"ConversionSoftwareVersion": "v1.0.20211006"
}
PA:
{
"Modality": "MR",
"MagneticFieldStrength": 3,
"ImagingFrequency": 123.26,
"Manufacturer": "Siemens",
"ManufacturersModelName": "Prisma_fit",
"DeviceSerialNumber": "167017",
"StationName": "MRC35056",
"BodyPartExamined": "BRAIN",
"PatientPosition": "HFS",
"ProcedureStepDescription": "Functional^Dr. Chai",
"SoftwareVersions": "syngo MR E11",
"MRAcquisitionType": "2D",
"SeriesDescription": "FieldMapping-3mm_se_PA",
"ProtocolName": "FieldMapping-3mm_se_PA",
"ScanningSequence": "EP",
"SequenceVariant": "SK",
"ScanOptions": "FS",
"SequenceName": "epse2d1_80",
"ImageType": [
"ORIGINAL",
"PRIMARY",
"M",
"ND",
"NORM",
"MOSAIC"
],
"SeriesNumber": 10,
"AcquisitionTime": "15:00:34.205000",
"AcquisitionNumber": 1,
"SliceThickness": 3,
"SpacingBetweenSlices": 3,
"SAR": 0.314045,
"EchoTime": 0.0512,
"RepetitionTime": 5.32,
"FlipAngle": 90,
"PartialFourier": 1,
"BaseResolution": 80,
"ShimSetting": [
211,
-11934,
-6310,
487,
11,
-60,
4,
20
],
"TxRefAmp": 231.041,
"PhaseResolution": 1,
"ReceiveCoilName": "Head_32",
"ReceiveCoilActiveElements": "HEA;HEP",
"PulseSequenceDetails": "%CustomerSeq%\\cmrr_mbep2d_se",
"WipMemBlock": "fc35aa4b-60a6-42db-96ef-d3530952aa11||Sequence: R016 ve11c/master r/34fb20f; Nov 20 2017 15:30:40 by eja",
"CoilCombinationMethod": "Sum of Squares",
"ConsistencyInfo": "N4_VE11C_LATEST_20160120",
"MatrixCoilMode": "SENSE",
"PercentPhaseFOV": 100,
"PercentSampling": 100,
"EchoTrainLength": 80,
"PhaseEncodingSteps": 80,
"AcquisitionMatrixPE": 80,
"ReconMatrixPE": 80,
"BandwidthPerPixelPhaseEncode": 25,
"EffectiveEchoSpacing": 0.0005,
"DerivedVendorReportedEchoSpacing": 0.0005,
"TotalReadoutTime": 0.0395,
"PixelBandwidth": 2315,
"DwellTime": 2.7e-06,
"PhaseEncodingDirection": "j",
"SliceTiming": [
5.2125,
5.125,
5.035,
4.9475,
4.86,
4.77,
4.6825,
4.595,
4.505,
4.4175,
4.33,
4.24,
4.1525,
4.065,
3.975,
3.8875,
3.8,
3.71,
3.6225,
3.535,
3.445,
3.3575,
3.27,
3.18,
3.0925,
3.005,
2.915,
2.8275,
2.74,
2.65,
2.5625,
2.475,
2.385,
2.2975,
2.21,
2.12,
2.0325,
1.945,
1.855,
1.7675,
1.68,
1.59,
1.5025,
1.415,
1.325,
1.2375,
1.15,
1.06,
0.9725,
0.885,
0.795,
0.7075,
0.62,
0.53,
0.4425,
0.355,
0.265,
0.1775,
0.09,
0
],
"ImageOrientationPatientDICOM": [
1,
-0.000366928,
-0.000743092,
-1.03987e-10,
0.896645,
-0.44275
],
"ImageOrientationText": "Tra>Cor(-26.3)>Sag(-0.0)",
"InPlanePhaseEncodingDirectionDICOM": "COL",
"ConversionSoftware": "dcm2niix",
"ConversionSoftwareVersion": "v1.0.20211006"
}
Thank you!