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Exactly 12 posts ago:billbolton wrote: So, the answer to my question is?
NotMuffy wrote: these apnea times were calculated by ResScan and identified as CAs.
http://www.google.com/search?q=EDFbrows ... =firefox-arobysue wrote:those graphs for both the Patient Flow and the Mask Pressure that are clearly NOT being generated by ResScan?
welcome!FigeFaislange wrote: thanks
Thanks again for the above graph and analysis, NotMuffy.NotMuffy wrote:BTW, these apnea times were calculated by ResScan and identified as CAs.-SWS wrote:Looking at NotMuffy's patient flow graph above:
-Exhalation ends a little after t=7 seconds
-FOT pulsation or "FOT scout" begins in the flow signal a little after t=11 seconds (4 seconds after exhalation according to Resmed spec)
-FOT pulsation continues right up until around t=29 seconds---which is the very peak of that first inhalation immediately after the above apnea
Now looking at NotMuffy's mask pressure graph above:
-EPR is in effect when the apnea begins
-EPR stays in effect the duration of the apnea
-Therefore EPR does not suspend in the middle of a detected apnea
It seems as though EPR _________ suspended during FOT.
Now we need to "fill in the blank". "IMHO", I don't believe FOT can be suspended without sending in a flow profile that will inevitably make any event identified as a central. Thus, it "can't be" suspended.
Great and thanks, BernieRay...BernieRay wrote:From last night (APAP 10-13, EPR=3):
18 second central:
11 second obstructive:
Based on this, it certainly appears to confirm that EPR is continuous throughout FOT and FOT appears to operate near the min allowed pressure including EPR (10-3=7). It also looks like ResScan displays the pressure graph based on therapy pressure from the PLD file instead of mask pressure from the BRP file, explaining why EPR doesn't show in ResScan. Are those conclusions correct, or did I miss something?
I'm still trying to soak it all in. I learn a lot from these discussions, but it takes me a while to process it in my head. I do know what I feel, though, which is gratitude that I found this board where these discussions can occur in this way, for the lay patient like me. Thank you very much, my friend, for what you discuss here and how you discuss it.-SWS wrote:...And what does jnk think at this point? He's been calling 'em well IMO. So what think ye, Mr. Jeff?
I think my basic SDB is easy to treat. So on that basis SDB treatment is going very well for me with S9. The EPR works very well for me and the ultra-low noise generated by that machine is a treat compared to my older-generation machines. Despite the excellent SDB treatment I receive, my sleep is fairly deteriorated thanks to chronic pain. I can't blame that on S9.jnk wrote:How is it going for you with your S9, and in general, if you don't mind my asking?
My heart goes out to you on the pain.-SWS wrote:I think my basic SDB is easy to treat. So on that basis SDB treatment is going very well for me with S9. The EPR works very well for me and the ultra-low noise generated by that machine is a treat compared to my older-generation machines. Despite the excellent SDB treatment I receive, my sleep is fairly deteriorated thanks to chronic pain. I can't blame that on S9.jnk wrote:How is it going for you with your S9, and in general, if you don't mind my asking?
I don't know....Otter wrote:Was it with the S9 or with one of the Rescan revisions?ozij wrote:When it showed S8 data, ResScan used to show 2 pressure lines, the bottom line was for average pressure which included EPR -- and I could see it rise towards the upper "therapy" (i.e. inhale) pressure after events. For some reason, they stopped that presentaton in the S9.
It's the machine, not the ResScan version.
And is the S9 still logging the data so that we can see it when Jedimark's software is ready?
I'm fairly certain it is. There's at least 3, if not 4, pressures being logged in the EDF files.I want to say I remember seeing both lines with either 3.11 or 3.12, but I'm not certain.ozij wrote:I don't know....Otter wrote:Was it with the S9 or with one of the Rescan revisions?ozij wrote:When it showed S8 data, ResScan used to show 2 pressure lines, the bottom line was for average pressure which included EPR -- and I could see it rise towards the upper "therapy" (i.e. inhale) pressure after events. For some reason, they stopped that presentaton in the S9.
It's the machine, not the ResScan version.
And is the S9 still logging the data so that we can see it when Jedimark's software is ready?
I think you're right. It's probably "Exp Press", and represents "Therapy Pres" minus current EPR. Also, given the frequency of the signal update, it looks like a machine (calcuated) value rather than a measured one.BernieRay wrote:Robysue, I used EDFBrowser, like someone earlier provide a link for.
I'm fairly certain it is. There's at least 3, if not 4, pressures being logged in the EDF files.I want to say I remember seeing both lines with either 3.11 or 3.12, but I'm not certain.ozij wrote:I don't know....Otter wrote:Was it with the S9 or with one of the Rescan revisions?ozij wrote:When it showed S8 data, ResScan used to show 2 pressure lines, the bottom line was for average pressure which included EPR -- and I could see it rise towards the upper "therapy" (i.e. inhale) pressure after events. For some reason, they stopped that presentaton in the S9.
It's the machine, not the ResScan version.
And is the S9 still logging the data so that we can see it when Jedimark's software is ready?
Either that, or it's the mask pressure from the PLD file. I'll post some new EDFBrowsers charts showing all pressures from both the BRP and PLD file, as well as flow and events when I get home. I've already got them created, but I can't host them at the moment.NotMuffy wrote:I think you're right. It's probably "Exp Press", and represents "Therapy Pres" minus current EPR. Also, given the frequency of the signal update, it looks like a machine (calcuated) value rather than a measured one.BernieRay wrote:Robysue, I used EDFBrowser, like someone earlier provide a link for.
I'm fairly certain it is. There's at least 3, if not 4, pressures being logged in the EDF files.I want to say I remember seeing both lines with either 3.11 or 3.12, but I'm not certain.ozij wrote:I don't know....Otter wrote:Was it with the S9 or with one of the Rescan revisions?ozij wrote:When it showed S8 data, ResScan used to show 2 pressure lines, the bottom line was for average pressure which included EPR -- and I could see it rise towards the upper "therapy" (i.e. inhale) pressure after events. For some reason, they stopped that presentaton in the S9.
It's the machine, not the ResScan version.
And is the S9 still logging the data so that we can see it when Jedimark's software is ready?
I think masks with smaller trigeminal contact area are probably less aggravating. So the last few months I have been using an Activa LT nasal mask instead of my usual FFM. But so far I can't sleep with Nasal Air unfortunately. Thanks for suggesting!jnk wrote: Has mask choice made any difference, all in all?
Thanks in advance! That EDFbrowser looks sure looks useful, and the $0.00 price is right... I think I'll give it a try this weekend.BernieRay wrote: I'll post some new EDFBrowsers charts showing all pressures from both the BRP and PLD file, as well as flow and events when I get home. I've already got them created, but I can't host them at the moment.
It definitely is a nice companion tool for ResScan. Using it, if you aren't familiar with such tools, isn't straightforward, but it didn't take me too much time to figure things out. If I get time, I may post some simple instructions on how I created these charts. No promises, but I'll try.-SWS wrote:Thanks in advance! That EDFbrowser looks sure looks useful, and the $0.00 price is right... I think I'll give it a try this weekend.BernieRay wrote: I'll post some new EDFBrowsers charts showing all pressures from both the BRP and PLD file, as well as flow and events when I get home. I've already got them created, but I can't host them at the moment.
BernieRay wrote:From last night (APAP 10-13, EPR=3):
