Description of the available MRI on the OFSEP’s database on 15 June 2019

On 15 June 2019, nineteen centers have imported OFSEP’s MRI data on the Shanoir database. MRI were acquired by 61 imaging centers, public and private.

The MRI’s protocol of 2,024 patients with different disease courses has been imported to the Shanoir-OFSEP database. A majority of patients had unique cerebral MRI cession but 43% of patients had multiple time points MRI. Similarly, 28% of patients had multiple time points of spinal cord MRI.

 

Cerebral MRI N patients
1 time point 2 time points ≥ 3 time points Total
RIS 3 3 6 12
CIS 77 34 17 128
RRMS 753 335 323 1411
SPMS 131 35 21 187
PPMS 104 36 13 153
NMOSD 9 2 0  11

 

Spinal cord MRI N patients
1 time point 2 time points ≥ 3 time points Total
RIS 3 5 1 9
CIS 62 11 5 78
RRMS 577 154 92 823
SPMS 90 13 13 116
PPMS 82 19 4 105
NMOSD 6 3 0 9

 

RIS: radiologically isolated syndromes, CIS: clinically isolated syndromes (CIS), RRMS: relapsing-remitting MS, SPMS: secondary progressive MS, PPMS: primary progressive MS, NMOSD: neuromyelitis optica spectrum disorder.

 

The cerebral sequences represents 81% of the 39,769 sequences (corresponding to 5,730 studies) available. The most frequent cerebral and spinal cord sequences used are listed below.