Does visual cortex lactate increase following photic stimulation in migraine without aura patients? A functional 1H-MRS study

Table 2 Signal integral variation (%)

	Total^a		Stimulation − Before^b		After − Stimulation^c		After − Before^d
	Controls	MwoA patients	Controls	MwoA patients	Controls	MwoA patients	Controls	MwoA patients
NAA	2.9 ± 1.7	3.0 ± 1.1	1.7 ± 3.3	1.3 ± 5.2	−2.5 ± 4.4	−1.4 ± 3.5	−0.8 ± 4.7	−0.3 ± 4.4
tCr	7.3 ± 4.4	7.7 ± 4.1	4.9 ± 14.4	4.5 ± 11.2	−4.9 ± 10.6	−0.5 ± 9.8	−1.4 ± 8.4	3.8 ± 14.1
Cho	11.9 ± 7.9	11.7 ± 7.1	8.1 ± 29.5	−0.3 ± 18.5	−2.4 ± 16.7	1.9 ± 19.5	3.1 ± 22.5	1.8 ± 28.7
Lac	33.4 ± 18.4	29.9 ± 17.2	16.9 ± 53.1	31.4 ± 74.5	7.9 ± 86.4	−5.8 ± 45.5	8.3 ± 55.9	−0.7 ± 42.8

^aTotal reflects the average signal integral variation of all conditions combined (before, during and after PS)
^bSignal integral variation of the signals obtained before and during PS
^cSignal integral variation of the signals obtained during and following PS
^dSignal integral variation of the signals obtained before and following PS

ISSN: 1129-2377