Download 3T GE G3M4 TwinSpeed 8Ch
Transcript
3T ADNI GE G3 M4 Software, TwinSpeed Gradient and 8-channel Brain Coil Set up the patient according to the ADNI instruction manual. Use the 8-channel brain coil. Use the electronic ADNI protocol that has been loaded on your scanner. NOTE: The "adni" pulse sequence used for series 2 and 3 is a works in progress pulse sequence that ADNI sites obtain from GE Healthcare. To avoid prolonging the scan time for Series 6, you will need to accept the "First Operating Mode" pop-up in series 1. Consult the scanner's user's manual to understand this choice, and its implications. IMAGING PARAMETERS 1. 3 plane loc. 8hrbrain scan plane mode SAT 3-plane (Whole Body gradient) scan plane mode pulse seq image opts. psd name Sag 3D ( ZOOM gradient) SPGR EDR, IrPrep, Fast adni SERIES coil etl scan time :16 comments Use 8-channel brain coil. SERIES coil 2. Sag MPRAGE 8hrbrain #echos te Prep time flip angle etl bw1/bw2 scan time 1 min full 900 8 31.25 9:14 comments Cover skin to skin. Remind the patient to hold still for this scan. SERIES coil 3.MPRAGE-repeat 8hrbrain #echos te Prep time flip angle etl bw1/bw2 scan time 1 min full 900 8 ACQUISITION TIMING matrix/nex fov (cm) slice/space autoshim 256 / 128 / 1 26 5/5 On matrix/nex phase fov locs/pause freq. direct. fc direct phase corr autoshim 256 / 256 / 1 0.94 On fov slice/space 26 1.2mm 170 locs/slab matrix/nex phase fov locs/pause freq. direct. fc direct phase corr autoshim 256 / 256 / 1 0.94 IMAGING PARAMETERS SCAN TIMING ADDITIONAL PARAMETERS User CVs Filter Choices = none turbo mode = 1 swap fat chem shift = 1 mprage mode = 1 TD or mprageTR=2300 ACQUISITION TIMING S/I SCANNING RANGE IMAGING PARAMETERS SCAN TIMING comments scan plane mode pulse seq image opts. psd name ADDITIONAL PARAMETERS User CVs 31.25 9:14 Sag 3D (ZOOM gradient) SPGR EDR, IrPrep, Fast adni Filter Choices = none turbo mode = 1 swap fat chem shift = 1 mprage mode = 1 TD or mprageTR=2300 ACQUISITION TIMING S/I Off SCANNING RANGE fov slice/space 26 1.2mm 170 locs/slab Prescribe same image locations as series 2, unless adjustment is needed (e.g. to correct for wrap). Remind the patient to hold still for this scan. (Continued on next page) GE G3 M4 TwinSpeed with 8-channel head coil ADNI 6/2/2005 3T ADNI GE G3 M4 Software, TwinSpeed Gradient and 8-channel Brain Coil SERIES coil 4. Sag B1 Cal PA 8hrbrain SCAN TIMING #echos te tr flip angle etl bw1/bw2 scan time 62.5 :39 comments Cover skin to skin. SERIES coil 5. Sag B1 Cal PA BODY #echos te tr flip angle etl bw1/bw2 scan time 1 min full 1 min full SERIES coil User CVs comments scan plane mode pulse seq image opts. psd name Filter Choices=none Turbo Mode =1 Sag 3D (ZOOM gradient) GRE EDR, Fast ADDITIONAL PARAMETERS matrix/nex phase fov locs/pause freq. direct. fc direct Auto Shim 128 / 128 / 1 fov slice/space 30 2.5mm matrix/nex phase fov locs/pause freq. direct. fc direct Auto Shim 128 / 128 / 1 S/I On SCANNING RANGE locs/slab=96 S/I Off 2 SCANNING RANGE User CVs Turbo Mode =1 62.5 :39 fov slice/space 30 2.5mm locs/slab=96 Turn Body Coil on for this scan. Leave 8hrbrain coil plugged in, but accept change to Body Coil Same image locations as series 4. IMAGING PARAMETERS 6. Ax PD/T2 FSE 8hrbrain SCAN TIMING #echoes te TR flip angle etl bw1/bw2 scan time Sag 3D (ZOOM gradient) GRE EDR, Fast ADDITIONAL PARAMETERS 2 SCAN TIMING comments scan plane mode pulse seq image opts. psd name 2 min full / TE2=97.2 3000 16 20.83 4:49 scan plane mode pulse seq image opts. psd name Ax 2D (ZOOM gradient) FSE-XL EDR, Fast ADDITIONAL PARAMETERS User CVs Filter Choices=none blurring cancellation=0 ACQUISITION TIMING matrix/nex phase fov acqs/pause freq. direct. fc direct Autoshim phase corr 256 / 256 / 1 0.9 0 A/P Off SCANNING RANGE fov slice/space 24 48 loc, 3mm interleaved Accept change back to 8-channel Brain Coil Prescribe 48 slices to cover head. Series 6 is the final patient series. Follow the ADNI instructions to complete the phantom scans. GE G3 M4 TwinSpeed with 8-channel head coil ADNI 6/2/2005