These are my notes from the talk Mike Hertage gave. I would like to have added this to Margarets Blog but it would appear I am not technical enough please excuse spelling etc.
Minimum age of scanning is one year.....commented size of syrinx increases within first few years and scanning would be best done at 6 yrs. but appreciates breeders would not be able to do this. If you do the scanning at a young age, some may slip through the net.
When you arrive at scanning centre dog must have permanent identification. Please be careful the chip is not placed in the neck has to be behind the shoulder blades.
Documents have to be available at time of scan.....Kennel Club Certificate. Any related transfer of change of name....owner has to complete an owners certificate (Section A)...confirming they own the dog and all the details are correct etc. Gives permission the scan can be used at a future date for research and the details can be published.
Will be scanned on a Diacom Image makes sure patients image goes with the right information, Diacom you cannot change patient details. Microchip number will be put on the Diacom and KC Reg. No. If the information is not correct the animal will have to be scanned again.
Talk about making sure the dog is still when MRI is performed and GA is preferred and safer for the dog as he will be monitored.
Three different scans will be needed T1 image around the pituitary and C4/C5 area, most of the sm is normally in the neck/higher area. T2 image also needed in the same area. The transverse image also needed. 4mm is maximum thickness allowed.
Vet completes forms with accurate information.
Cm will be graded 0 – No Malformation
1 Cerebellum does not have a nice rounded shape
has an indentation by the occipital bone
2 Cerebella is impacted/herniated
SM Graded according to it maximum diameter in the transverse image at the widest diameter:-
0 No present of sm
1. Central Canal dilation has an internal dimension of 2mm
in a dog aged 6 or more (unlikely to progress further)
2. Same as Grade 1 but a dog under 6
3. With a syrinx greater thn 2mm or separate or distinct