Thanks,Pieter
I will look into my data.
Tony
-----Original Message-----
From: Pieter Vandemaele [mailto:[log in to unmask]]
Sent: Monday, November 03, 2008 2:07 PM
To: Jiang, Zhiguo
Cc: [log in to unmask]
Subject: Re: [SPM] Siemens Mosaic Slice Scanning Order
We have done some experiments on this topic because Siemens could not
provide us with the answer of the same question.
The experiment was very simple. We scanned a subject with a ep2d_bold
sequence with long TR and 4 and 5 slices. After one slice, the subject
turned the head to the right.
It seems that the number of slices, even or odd, is a very important
parameter.
Please read more at
http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind06&L=SPM&P=R777425
regards
Pieter Vandemaele
My colleague has posted t
Jiang, Zhiguo schreef:
>
> Dear SPMers
>
> Anyone has any idea that how I could find out the correct slice
> scanning order required by SPM2 slice time correction? I am working
> with Simens Trio machine so what I got is a mosaic DICOM file. It's
> unlikely that I could tell which slice was scanned first from the time
> stamp of the file corresponding to the slice( they are all saved in
> one file, in my case, 30 slices). I am posting the DICOM header
> information here. Would really appreciate if someone could help me.
> All information I can get is the DICOM files themselves. The people
> who did the experiment couldn't be reached and no way for me to get
> those original scanner parameters or experiment logbook etc.
>
> Header info:
>
> Filename: '00017.dcm'
>
> FileModDate: '31-Oct-2008 20:02:57'
>
> FileSize: 334136
>
> Format: 'DICOM'
>
> FormatVersion: 3
>
> Width: 384
>
> Height: 384
>
> BitDepth: 12
>
> ColorType: 'grayscale'
>
> SelectedFrames: []
>
> FileStruct: [1x1 struct]
>
> StartOfPixelData: 39216
>
> SpecificCharacterSet: 'ISO_IR 100'
>
> ImageType: 'ORIGINAL\PRIMARY\M\MOSAIC'
>
> SOPClassUID: '1.2.840.10008.5.1.4.1.1.4'
>
> SOPInstanceUID: '1.3.12.2.1107.5.2.12.20504.6.0.3069628010981018'
>
> StudyDate: '20030622'
>
> SeriesDate: '20030622'
>
> AcquisitionDate: '20030622'
>
> ContentDate: '20030622'
>
> StudyTime: '114815.218000'
>
> SeriesTime: '123241.906000'
>
> AcquisitionTime: '122518.255012'
>
> ContentTime: '123314.250000'
>
> AccessionNumber: ''
>
> Modality: 'MR'
>
> Manufacturer: 'SIEMENS'
>
> ReferringPhysicianName: [1x1 struct]
>
> StudyDescription: XXXXXXXXXXX
>
> SeriesDescription: 'MVC_50%_HANDGRIP'
>
> ManufacturerModelName: 'TRIO'
>
> PatientName: [1x1 struct]
>
> PatientID: XXXXXXXXXXX
>
> PatientBirthDate: '19730520'
>
> PatientSex: 'M'
>
> PatientAge: '030Y'
>
> PatientWeight: 59.0200
>
> PatientAddress: ''
>
> PatientComments: 'FATIGUE'
>
> ScanningSequence: 'SE\EP'
>
> SequenceVariant: 'SK'
>
> ScanOptions: 'FS'
>
> MRAcquisitionType: '2D'
>
> SequenceName: '*epfid2d1_64'
>
> AngioFlag: 'N'
>
> SliceThickness: 4
>
> RepetitionTime: 67
>
> EchoTime: 30
>
> NumberOfAverages: 1
>
> ImagingFrequency: 123.2484
>
> ImagedNucleus: '1H'
>
> EchoNumber: 0
>
> MagneticFieldStrength: 2.8936
>
> SpacingBetweenSlices: 4
>
> NumberOfPhaseEncodingSteps: 64
>
> EchoTrainLength: 1
>
> PercentSampling: 1
>
> PercentPhaseFieldOfView: 1
>
> PixelBandwidth: 1775
>
> DeviceSerialNumber: '20504'
>
> SoftwareVersion: '4VA16A'
>
> ProtocolName: 'MVC_50%_HANDGRIP'
>
> TransmitCoilName: 'TxRxHead'
>
> AcquisitionMatrix: [4x1 uint16]
>
> InPlanePhaseEncodingDirection: 'COL'
>
> FlipAngle: 90
>
> VariableFlipAngleFlag: 'N'
>
> SAR: 0.0693
>
> dBdt: 0
>
> PatientPosition: 'HFS'
>
> StudyInstanceUID: '1.3.12.2.1107.5.2.12.20504.6.0.2939997512801434'
>
> SeriesInstanceUID: '1.3.12.2.1107.5.2.12.20504.6.0.3069605871292161'
>
> StudyID: '1'
>
> SeriesNumber: 3
>
> AcquisitionNumber: 17
>
> InstanceNumber: 509
>
> ImagePositionPatient: [3x1 double]
>
> ImageOrientationPatient: [6x1 double]
>
> FrameOfReferenceUID:
'1.3.12.2.1107.5.2.12.20504.20030622122633703.0.0.0'
>
> PositionReferenceIndicator: ''
>
> SliceLocation: -62.4048
>
> ImageComments: 'Motion: 0.12,0.05,-0.07,-0.04,-0.11,-0.05'
>
> SamplesPerPixel: 1
>
> PhotometricInterpretation: 'MONOCHROME2'
>
> Rows: 384
>
> Columns: 384
>
> PixelSpacing: [2x1 double]
>
> BitsAllocated: 16
>
> BitsStored: 12
>
> HighBit: 11
>
> PixelRepresentation: 0
>
> SmallestImagePixelValue: 0
>
> LargestImagePixelValue: 1599
>
> WindowCenter: 723
>
> WindowWidth: 1546
>
> WindowCenterWidthExplanation: 'Algo1'
>
> Private_0029_10xx_Creator: 'SIEMENS CSA HEADER'
>
> Private_0029_11xx_Creator: 'SIEMENS MEDCOM HEADER '
>
> Private_0029_1008: [12x1 uint8]
>
> Private_0029_1009: [8x1 uint8]
>
> Private_0029_1010: [2380x1 uint8]
>
> Private_0029_1018: [2x1 uint8]
>
> Private_0029_1019: [8x1 uint8]
>
> Private_0029_1020: [35160x1 uint8]
>
> Private_0029_1131: [12x1 uint8]
>
> Private_0029_1132: [4x1 uint8]
>
> Private_0029_1133: [4x1 uint8]
>
> Private_0029_1134: [12x1 uint8]
>
> StudyComments: ''
>
> Thanks,
>
> Tony
>
> ===================================
>
> P Please consider the environment before printing this e-mail
>
>
>
> Cleveland Clinic is ranked one of the top hospitals in America by U.S.
> News & World Report (2008).
> Visit us online at http://www.clevelandclinic.org for a complete
> listing of our services, staff and locations.
>
>
> Confidentiality Note: This message is intended for use
> only by the individual or entity to which it is addressed
> and may contain information that is privileged,
> confidential, and exempt from disclosure under applicable
> law. If the reader of this message is not the intended
> recipient or the employee or agent responsible for
> delivering the message to the intended recipient, you are
> hereby notified that any dissemination, distribution or
> copying of this communication is strictly prohibited. If
> you have received this communication in error, please
> contact the sender immediately and destroy the material in
> its entirety, whether electronic or hard copy. Thank you.
>
P Please consider the environment before printing this e-mail
Cleveland Clinic is ranked one of the top hospitals
in America by U.S. News & World Report (2008).
Visit us online at http://www.clevelandclinic.org for
a complete listing of our services, staff and
locations.
Confidentiality Note: This message is intended for use
only by the individual or entity to which it is addressed
and may contain information that is privileged,
confidential, and exempt from disclosure under applicable
law. If the reader of this message is not the intended
recipient or the employee or agent responsible for
delivering the message to the intended recipient, you are
hereby notified that any dissemination, distribution or
copying of this communication is strictly prohibited. If
you have received this communication in error, please
contact the sender immediately and destroy the material in
its entirety, whether electronic or hard copy. Thank you.
|