[Freesurfer] [Philips 3T MRI protocol Recommendation for FreeSurfer]

2016-09-30 Thread 김정식
Dear FS team,we are using Philips Achieva 3T scanner for acquiring our MRI data.Our T1-weighted MRI protocol as follows:- 3D T1 TFE coronal- 0.5x0.5x1.0 voxel resolution- FOV 240x240 mm- TR/TE = 9.8/4.6 ms- Spacing between slices: 0.5 mm- NSA (=NEX=ACQ) = 1- Bandwidth = 142 Hz/PxIn our most

[Freesurfer] [Verification for fully automated analysis of FreeSurfer]

2016-10-04 Thread 김정식
Dear FreeSurfer team, First of all, I'm a newbie for FreeSurfer. In our research center, we examined some MRI sample data (three cases) to reconstruct cortical surfaces using three MRI scans acquired by each different machines(Philips and Siemens) and different parameters.   Although I t

[Freesurfer] [Question for recommended MRI protocols]

2016-10-30 Thread 김정식
Dear Freesurfer experts, Regarding the recommended MRI protocol for FreeSurfer, We have some questions. I read that using T1 Multiecho MPRAGE and T2-SPACE FLAIR in the Freesurfer analysis would be helpful to enhance a Freesurfer result. T2-SPACE FLAIR image must have both same voxel resolution (1

[Freesurfer] [How to transform the statistical map from the average surfaces into the individual subject's surfaces]

2017-05-21 Thread 김정식
Dear FreeSurfer experts, Recently, I've been developing the way to detect regions with cortical dysplasia from MRI-negative. So, I compared an individual epilepsy patient's MRI with 30 healthy controls' MRI in cortical thickness. In the final step, I would like to confirm whether the fina

[Freesurfer] [How to perform z-statistic of the combination of multiple MRI features?]

2017-06-07 Thread 김정식
Dear FreeSurfer experts,Sorry for the newbie question ^^;My goal is to detect candidate regions of focal cortical dysplasia in epilepsy patients, comparing to healthy control subjects.To do so, I've performed a series of processes as follows:1) recon-all and manual correcting of visually con

[Freesurfer] [Error in analyzing group vs individual case by QDEC]

2017-06-07 Thread 김정식
Dear FreeSurfer experts, First, I'm very sorry for a newbie question of FreeSurfer. In my work, there was no problem to analyze a groupwise comparison between controls and patients using QDEC. However, I've faced a critical problem to acquire a statistical result from the comparison between