This is extremely helpful. Thank you, all!
Ashley
Ashley Brito
mail@xxxxxxxxxxxxxxx
www.ashleybrito.com
978-424-8786
On Jul 14, 2017, at 10:08 AM, Michael R. Turano, Jr. <turano@xxxxxxxxx> wrote:
Well put Tim and Sandor,
One most important part of any PACS for FDA 510K is that it re-displays
exactly what is sent to it by the system performing the image capture making
no determination on what is most important for the physician to see. This
includes brightness contrast enhancement. FORUM as a PACS product does not
make any adjustments to the image brightness/contrast ect. Anytime there is a
difference it is very likely that the vendor within their software at the
capture station is applying some image enhancement to re-display the image in
a more favorable way. Many fundus cameras apply sharpening filters ect but
when they DICOM export they send the file as it was captured and do not apply
the filters.
Take FORUM or any PACS out of the equation and do a DICOM export of the file
if possible to a local drive location. Likely the image in DICOM format in
any free viewer will look similar to OR exactly the same as it does in FORUM
or the PACS and may be different from what is displayed in the vendors
software.
Mike
__
Michael Turano
c. 917.826.9506
f. 917.591.1841
e. turano@xxxxxxxxx
On Fri, Jul 14, 2017 at 9:16 AM, Steffens, Tim <tjsteffe@xxxxxxxxxxxxx>
wrote:
Your right Sandor. Radiology is constantly adjusting images
(brightness/contrast) to see what’s in their images. It’s not WYSIWYG. We
see a difference in tonality and noise on our DICOM exported Spectralis
images. The Spectralis images are more contrasty and noisy. I don’t know if
it’s the Spectralis DICOM export module or Merge doing something with DICOM
image.
Thanks,
Tim
From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Sandor Ferenczy
Sent: Friday, July 14, 2017 9:05 AM
To: optimal@xxxxxxxxxxxxx
Subject: [optimal] Re: HS Slit Lamp to Forum
Tim is right on. Get an image directly from the camera & one from Forum &
compare them.
My off the cuff guess would be that there are image adjustments added to the
displayed image that are not being added to the ?DICOM? exported image.
ie Forum is getting a "raw" image file, and the camera is adding on the fly
enhancement.
With our radiology PACS this is a common occurrence - the raw captured
MRI/CT/PET has a much different appearance that an image adjusted to
highlight certain pathology.
-sandor
On Fri, Jul 14, 2017 at 8:24 AM, Bennett, Timothy
<tbennett1@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Have you compared an image exported directly from the slit lamp with the
same one exported from Forum? That’s what I would do first. Take a look at
both of them in an independent viewer to see if they appear the same or not.
And as Marshall suggested you could look at the histograms for both
versions, but just comparing them subjectively would let you know if Forum
is altering them.
Good luck,
tim
www.eye-pix.com
From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Ashley Brito
Sent: Thursday, July 13, 2017 5:44 PM
To: optimal@xxxxxxxxxxxxx
Cc: echristie@xxxxxxxxxxxxxxxxxxxxxx
Subject: [optimal] HS Slit Lamp to Forum
Hi all,
Anyone with an BQ900 camera system have an issue with photos showing up in
Forum much darker than shot?
Zeiss and Haag Streit blame the other and we've ruled out monitor
calibration.
Any thoughts are appreciated!
Ashley
Ashley Brito, CRA, OCT-C
Ophthalmic Photography and Imaging Supervisor
New England Eye Center at Tufts Medical Center
800 Washington St.
Boston, MA 02111
abrito@xxxxxxxxxxxxxxxxxxxxxx
P: 617-636-5441
F: 617-636-4867
**********************************************************
Electronic Mail is not secure, may not be read every day, and should not be
used for urgent or sensitive issues
