Metabolite | Hamartoma | Thalamus | Amygdala |
---|---|---|---|

NAA | 6.28 (12) | ^{*}9.22 (9) | 6.12 (12) |

Cho | 1.87 (10) | ^{**}1.29 (12) | 1.93 (11) |

Cr | 5.31 (14) | 6.17 (12) | 5.71 (13) |

MI | 10.5 (8) | ^{*}3.1 (20) | ^{*}6.0 (12) |

Glx | 9.5 (25) | 7.7 (22) | 10.1 (21) |

NAA/Cho^{†} | 3.36 (15) | *7.15 (14) | 3.17 (16) |

NAA/Cr^{†} | 1.18 (18) | ^{**}1.49 (15) | 1.07 (17) |

Cho/Cr^{†} | 0.35 (15) | 0.21 (18) | 0.34 (19) |

Note.—The numbers in parentheses are the estimated LCModel SD expressed as percentages of the estimated concentrations.

* Value differs significantly from that of the hamartoma (no overlaping of the 95% confidence intervals [ie,

*t*> 3.9;*P*< 0.001])**

*P*< .02.† The calculated ratios represent concentration ratios and not ratios of peak areas; effects of T2 are negligible, because of the short TE. The SDs of the ratios were derived from the SD of the concentrations by error multiplication.