Egyptian Journal of Radiology and Nuclear Medicine

Table 4 Spectroscopic data intra-lesional within and outside tumor margin of the primary and metastatic neoplastic lesions

From: The diagnostic value of MR spectroscopy versus DWI-MRI in therapeutic planning of suspicious multi-centric cerebral lesions

MRS (mean ± SD)	Primary	Metastatic	P value
Cho/Cr	7.21 ± 4.36	5.08 ± 3.75	0.071
Cho/NAA	9.31 ± 6.41	6.32 ± 5.82	0.089
NAA/Cr	0.57 ± 0.5	0.91 ± 0.82	0.167
Cho/NAA + Cr	3.21 ± 2.32	2.8 ± 3.22	0.181
NAA/Cho	0.2 ± 0.2	0.5 ± 0.5	0.165
Cho/NAA	3 23 ± 2.42	0.71 ± 0.23	< 0.001*
Cho/Cr	2.53 ± 1.38	1.06 ± 0.33	< 0.001*

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