Need help in understanding acquisitions from siemens data

[Rosh]

Hello All,

I convert siemens data to ISMRMRD format using siemens_to_ismrmrd convertor.

The generated `processed.xml` and `xml_raw` files are attached. Some parameters on Phase encoding are shown below:

iPEFTLength                 = 448

dPhaseResolution         = 0.75

lPhaseEncodingLines    = 168

ucPhasePartialFourier   = 16

lSize (slices)                  = 20

I think the data represents a partial fourier data and I was assuming that there will be 168 acquisitions (PE lines) for each of the 20 slices. 

But the method getNumberOfAcquisitions() of ISMRMRD returns 11746. Then I loop through the acquisition objects to get some more information on slice data.

Slice                                                     Acquisitions

1                 610  (kspace_encode_step_1: 0-97 repeated 6 times with same values and kspace_encode_step_1: 0 repeated 22 times)

2                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

3                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values) 

4                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

5                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

6                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

7                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

8                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

9                 588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

10               588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

11               588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

12               588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

13               588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

14               588  (kspace_encode_step_1: 0-97 repeated 6 times with same values)

15               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)

16               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)

17               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)

18               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)                                          

19               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)                                          

20               582  (kspace_encode_step_1: 0-96 repeated 6 times with same values)                                           

The repetition field value is 0 for all acquisitions. 

Is this an expected behaviour or is data corrupted? 

Why the acquisition data are repeated 6 times with same k-space values?

How the value of `ucPhasePartialFourier` affects the values shown in .h5. ?

Thanks.