[XA61] physio in DICOM : sequence does not start

[benoitberanger]

Hi @eauerbach,

Magnet : 3T Cima.X in XA61
Protocol : default + GLM disabled

When the Physio recording is in "DICOM" mode, the sequence does not start.
The message : "Scanning stopped by image reconstruction"
I did a SaveLog right after the crash. And the Utrace.
The physio devices were not in the magnet room, still on the wall charger.

Best,
Benoît

[julfou81]

Hi @benoitberanger ,

From the tests from yesterday on the CIMA.X, I remember that the CMRR ep_2d_bold crashes on the CIMA.X in XA61 when whichever format was requested for Physio Logging: File, DICOM or Both, even though the respiratory signal measured by the spine coil was present. Do you confirm?

[benoitberanger]

Just checked :

• Off -> works
• DICOM -> crashed at the beginning
• File -> crashed at the beginning
• Multiple -> crashed at the beginning
• Legacy -> works
  I used the 64 channel coils, on a phantom, so no physio signals at all to record.

On a Prisma in VE11E, even though there is no signal to record, it works, the sequence starts and behaves normally, just the DICOM file is empty.

[julfou81]

Same issue as with @benoitberanger with a Prisma after we upgraded to XA60 with release CMRR_MB_EPI_XA60A_R017pre9

[DanielGuellmar]

I can confirm the issue with a Prisma upgraded from XA60A to XA30A with the release CMRR_MB_EPI_XA60A_R017pre9 . Only the legacy mode writes data out to the Physio folder (so it behaves as expected by the setting File).

[eauerbach]

I guess Siemens changed the format of the physiology data again, which would cause my interpreting code to throw an error. If someone can send me a savelog I will have a look at it.

[julfou81]

Thank you @eauerbach for looking into this issue!

Here is the UTraceSrv.utr file from our system (3T Prisma in XA60) after I launched several MB GRE-EPI acquisitions:

• measID 25: bold sequence with Physio recording: DICOM and no physio input (crashed at launching)
• measID 27: bold sequence with Physio recording: DICOM and physio input from the PMU simulation (crashed at launching)
• measID 29: bold sequence with Physio recording: File and and physio input from the PMU simulation (crashed at launching)
• measID 31: bold sequence with Physio recording: Legacy and and physio input from the PMU simulation (stopped by user because I put too many volumes)
• measID 33: bold sequence with Physio recording: Legacy and and physio input from the PMU simulation (succeed after the acquisition of 3 volumes)

https://sdrive.cnrs.fr/s/a43W6AR7XX5mG3y

[eauerbach]

Ok, it looks like there are two different issues: one seems to only affect XA61, and the other probably affects XA50/60/61. I have built some updated ICE binaries, can you try this and let me know how it goes? Just copy the two files to %CustomerIceProgs%, overwriting the existing files, then reboot the system. If there is still an error with this version, please send me an updated savelog (this version does more detailed logging).

XA60
XA61

[julfou81]

The problem is solved for XA60 with the new ICE binaries! Thank you @eauerbach !

[benoitberanger]

Cima.X @ XA61
New binaries installed.

It works for the default protocol (+ GLM::Off). All Physio options works.

On an already running protocol (no the default, here with MB, ME, GRAPPA, etc) , Preparation of Image Reconstruction System has failed.

[benoitberanger]

OK ok I think found the problem : SENSE1 option makes the sequence to NOT start.
Default prot (+glm::off) + SENSE1::Off -> OK
Default prot (+glm::off) + SENSE1::On -> Preparation of Image Reconstruction System has failed

MB option, ME option, Physio, everything seems to work (I didn't try with a real subjecto for the physio, but at least the option works).
Except the SENES1 option.

[benoitberanger]

The first Error in the UTrace :

Exception during call of 'CMRR_MBIcePrg2D_NS_ejaIcePrg2DConfigurator::Compose()'
inner exception node : ejaCalcSenssProfile: SetProperty - Parameter not found UseExternalPhases

[eauerbach]

This ICE patch can only be used with the R017pre9 version, did you already have that installed? I think that SetProperty error would appear if you installed the patch atop an older version.

[benoitberanger]

To check for this specific info, I need to check with my colleagues who installed the sequence.
At the moment, I can have this info from dcm2niix conversion :

"PulseSequenceDetails": "%CustomerSeq%\\cmrr_mbep2d_bold",
"WipMemBlock": "b1993fb5-6970-4982-a023-f767275fba1d||Sequence: R017 nxva61a/main r/ed3a492e1; Apr 26 2024 18:01:22 by eja",

[eauerbach]

That is indeed an older version; R017pre9 for XA61 should be dated May 21 2024. So you would need to install R017pre9 first, then follow with the patch.

[benoitberanger]

Ok thanks, we will try and let you know.

[benoitberanger]

Sorry for the very late response.
I just updated with the new binaries from May 21 : exactly the same results.

Off -> works
DICOM -> crashed at the beginning
File -> crashed at the beginning
Multiple -> crashed at the beginning
Legacy -> works
I used the 64 channel coils, on a phantom, so no physio signals at all to record.

Default protocol with GLM & MotionCorrection Off.

I'll upload the SaveLog soon.

[awalls77]

Hi all, We used the updated binaries and they (DICOM) worked for us - I shall get back to you all with details ASAP. Angela Walls Chief Technologist

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[eauerbach]

Sorry for the very late response. I just updated with the new binaries from May 21 : exactly the same results.

Thanks, I had a look at the savelog and indeed I can see that you updated to the binaries from May 21, but after that you would also need to install the patch from here. Then you would have the sequence from May 21 and the ICE from July 30 and hopefully that combination works. It seems to work for XA60, so if I can get confirmation it also works for XA61 I will roll it all into a new proper release version.

[benoitberanger]

As you expected it works now ! With the Sequence from May 21 and Ice from July 30 it works.
I checked with the default protocol and with a normal protocol : all physio option generate the _PhysioLog series.
I didn't check the content, but I expect it to be ok, since the problem was the sequence started and stop in less than a second.

If you need me to make more tests, please le me know. I'll send you the SaveLog and UTrace.