I agree, Gary. You have to know when you reach that point. I was encouraging
other imagers to try longer and sometimes get results that impress the doc: “I
can’t believe you were able to get a scan through that (cornea/lens/vitreous) !”
Tom
On Jan 17, 2020, 4:41 PM -0500, Miller, CRA, OCT-C, Gary
<dmarc-noreply@xxxxxxxxxxxxx>, wrote:
Hi Tom!
I did not say how LONG until until we've reached that point.... only that one
knows when it's reached. ; )
Like you, I've done my share of going further than most would to get the best
image I can....many of us are perfectionists to a lesser or greater degree
(mostly greater). I'm happy with a zero or one, if that's the best I can get.
But I believe it's good to know when, no matter how many tricks we use, the
image I get is the best I am going to achieve at that time.
G
From: optimal-bounce@xxxxxxxxxxxxx <optimal-bounce@xxxxxxxxxxxxx> on behalf
of Barsness, Denice <dmarc-noreply@xxxxxxxxxxxxx>
Sent: Thursday, January 16, 2020 6:44 PM
To: optimal@xxxxxxxxxxxxx <optimal@xxxxxxxxxxxxx>
Subject: [optimal] Re: [External] FW: [**External**] From Denice SF Retinal
OCT Bring it!
Kinda like CPR, eh? At what point do you call it?...
I agree. We routinely do macular OCT pre biometry, and a”hint” of a foveal
depression still gives the surgeon an extra comfort factor. Not unlike
fundus imaging, you have to work it to get through the least dense area.
Since metrics aren’t the issue here, not being truly coaxial, we can live
with that.
The newer biometers, such as Atlas 700, are hanging their hats on a
microscopic piece of OCT of the fovea. I venture that in true cataractous
lens, you need more than that!
Denice Barsness, CRA, COMT, CDOS, FOPS
CPMC Dept of Ophthalmology/ The Eye Institute
Ophthalmic Diagnostic Services
711 Van Ness Avenue Suite 250
San Francisco CA 94109
415-600-5781
FAX 415-558-7011
From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On ;
Behalf Of t.egnatz@xxxxxxxxxxx
Sent: Thursday, January 16, 2020 3:33 PM
To: optimal@xxxxxxxxxxxxx; optimal@xxxxxxxxxxxxx
Subject: [optimal] Re: [External] FW: [**External**] From Denice SF Retinal
OCT Bring it!
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Gary, A good last point. But on some patients, trying for 4-5 minutes instead
of 1-2 minutes to get a scan pays off. There were many instances of poor
media where I would finally get a scan showing the macula with a smooth
foveal depression.
Granted, a signal strength of 1/10 or 0/10, but good enough to show the
macula as”flat and attached”, indicating further surgery might be of benefit.
Tom
On Jan 16, 2020, 1:48 PM -0500, CPMC Ophthalmic Diagnostic Center
<dmarc-noreply@xxxxxxxxxxxxx>, wrote:
Thanks Gary. Got this one.IMPORTANT WARNING: The information in this message (and the documents
Yeah, Read your Manual!
And follow that Indian wisdom- when your horse falls down, quit beating it….
You have a great list, I would include....
-understand your OCT device, how to use it and what it can do for you.
-recognizing artifacts- causes, location, how to correct
-know the point at which you're not going to achieve a better image.
Gary
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