help
help > RE: Parameter for preprocessing - slice timing correction / Philips SENSE
Jan 19, 2022 12:01 PM | Pravesh Parekh - National Institute of Mental Health and Neurosciences
RE: Parameter for preprocessing - slice timing correction / Philips SENSE
Hello,
There are papers that demonstrate the usefulness of slice timing correction for fMRI data (see, for example, Parker and Razlighi; https://www.frontiersin.org/articles/10.3389/fnins.2019.00821/full). The use of SENSE should not (in my opinion) make a difference to this decision.
The Philips DICOM header does not contain slice timing information. Therefore, the JSON file will not contain the slice acquisition order. The only way to find this information is to check the MRI console (or if you have an exported text file version of the "ExamCard") and see which order was selected (default, ascending, descending, or interleaved). Note that "default" of Philips equals interleaved and "interleaved" of Philips does a very different thing (spacing of slices is based on rounding off of the square root of number of slices) [see https://en.wikibooks.org/wiki/SPM/Slice_...
Hope this helps
Best
Pravesh
Originally posted by jun Kim:
There are papers that demonstrate the usefulness of slice timing correction for fMRI data (see, for example, Parker and Razlighi; https://www.frontiersin.org/articles/10.3389/fnins.2019.00821/full). The use of SENSE should not (in my opinion) make a difference to this decision.
The Philips DICOM header does not contain slice timing information. Therefore, the JSON file will not contain the slice acquisition order. The only way to find this information is to check the MRI console (or if you have an exported text file version of the "ExamCard") and see which order was selected (default, ascending, descending, or interleaved). Note that "default" of Philips equals interleaved and "interleaved" of Philips does a very different thing (spacing of slices is based on rounding off of the square root of number of slices) [see https://en.wikibooks.org/wiki/SPM/Slice_...
Hope this helps
Best
Pravesh
Originally posted by jun Kim:
Thanks to everyone who has always been active on
the forums for their comments.
I am going to analyze the images obtained from Philips ingenia 3.0T. I want to ask your opinion on the proper pipeline for preprocessing.
The part that worries me is the slice timing correction.
Multiband was not applied during image acquisition, but SENSE was used with Parallel Acquisition Technique.
In this case, whether slice timing correction is necessary and
If necessary, set parameters related to slice acquisition.
I am wondering which one to choose.
(ascending, descending, interleaved, etc.)
The JSON file is attached.
Thank you for your kind comments from everyone.
Thank you.
I am going to analyze the images obtained from Philips ingenia 3.0T. I want to ask your opinion on the proper pipeline for preprocessing.
The part that worries me is the slice timing correction.
Multiband was not applied during image acquisition, but SENSE was used with Parallel Acquisition Technique.
In this case, whether slice timing correction is necessary and
If necessary, set parameters related to slice acquisition.
I am wondering which one to choose.
(ascending, descending, interleaved, etc.)
The JSON file is attached.
Thank you for your kind comments from everyone.
Thank you.
Threaded View
| Title | Author | Date |
|---|---|---|
| jun Kim | Jan 19, 2022 | |
| Pravesh Parekh | Jan 19, 2022 | |
| jun Kim | Jan 20, 2022 | |
| Pravesh Parekh | Jan 20, 2022 | |