Hi @ruifengd,
Part I:
My first comment is that jMRUI 5.2 is now quite old – version 7 was released last year. I wouldn’t be too surprised if older versions struggle to import data from newer scanner software releases. So if possible, I’d recommend you upgrade to the latest version.
Having said that – here are a couple of pointers based on my (limited) experience with v6.0, which is also now a couple of years old.
In principle, jMRUI supports GE and Siemens formats. However, by default it tries to auto-detect the format – as far as I can tell, by attempting each configured format one at a time until something works. In my experience, it often fails before ever reaching the “correct” format. There are a couple of ways around this – either you can use the “Open As” function and then choose the correct format:
…or re-arrange the order and selection of formats it will try:
Probably best to move the ones you are commonly using to the top of the list, and maybe un-check formats you’re never expecting to use.
Part II:
Yes, and it’ll offer to combine it for you immediately after loading. Here’s how it looks for our GE data:
“Combine and add” will do coil combination and adding of individual transients – for GE data it’ll handle water ref and metabolite transients separately, for most Siemens data these are likely to be in separate scans
Or “Combine” to do coil combination only, keeping all the individual transients separate
Or “Skip” to not combine anything – then you can choose various other processing steps to combine in whatever way you choose.