Replies to post #36059 on Grapefruit USA Inc (GPFT)

[richrichrich]

Hey KKguru. I'm wondering if you or anyone else out there, have ever heard of a software "enhancement" product called Vivaslices. I know it's geared toward use with older MRI equipment, but was just curious about anyone who might have demoed/used/bought that product. Also, are there similar 3rd/4th party software/hardware solutions, for existing X-ray devices, in the imaging industry? I'm fairly "green" as far as knowledge of the whole industry, and wonder if this field is wide open for development. Thanks.

[mr_sano]

KKG,

<<Even though Feldcamp algorithm is approximate ....it still takes significant amount of time to reconstruct 3d images ..in order of multiple seconds.Feldcamp algorithm require large number if projection (more than 200) , typically taken from every 1-2 degree in circular gantry.Cone beam angle should also be very small to get better images quality.>>

So what your saying is IMGG just used the absolute minimum number of images so they could process in something near real time . The fDA has come back said they want see the nuts and bolts of this SW processing. They also question Deans claim that DVIS didnt post process AND the data on the detector was not sufficent. If Dean is processing voxels by some new detection scheme as you suggest, then certainly this should have spelled this out in great detail on the last submit.

<<Lets say in first DVIS rotation s/W determines the distance of each pixel of every picture from X ray source . Storing these distance for all pixel actually creates 3d base map.
Now as per DVIS patent ....2d picture are pasted on 3d base map....which is nothing but assigning Z cordinate from stored 3d map look up table.>>

This sounds more like an animation no? If the Z coordinated are not updated then your 3d images is not true. You would just have 2d images updating a static 3d Map. I guess technically you could say this is real time 3d but I'm sure that could be picked apart very quickly. The scheme you mention reminds of the singing headstones at the haunted mansion at Disneyland. Looks cool but not much of a medical benefit.