1H-MRS and diffusion-weighted imaging findings in 14 patients with brain abscess or tumor
| Case No. | Age (y)/Sex | Diagnosis | Metabolites Detected | Signal Intensity on Diffusion-Weighted Image |
|---|---|---|---|---|
| 1 | 50/M | Brain abscess | Ace(+++), Ala(++), AA(+++), Lac(+++) | Markedly high |
| 2 | 44/M | Brain abscess | Ace(+++), Succ(++), Ala(++), AA(++), Lac(++), NAA(+), Cho(+), Cr/PCr(+) | Markedly high |
| 3 | 58/F | Brain abscess | Ace(+++), Ala(++), AA(+), Lac(++) | Markedly high |
| 4 | 26/F | Brain abscess | Ace(+++), Ala(++), AA(+), Lip(+), Lac(++) | Markedly high |
| 5 | 69/M | Brain abscess | * | Markedly high |
| 6 | 48/M | Brain stem abscess | ** | Markedly high |
| 7 | 45/M | Brain abscess | Lip(++), Lac(+) | Markedly high |
| 8 | 63/M | Glioblastoma | Lac(+++) | Markedly low |
| 9 | 74/M | Glioblastoma | Lac(++), NAA(+), Cho(+++), Cr/PCr(+) | Markedly low |
| 10 | 58/F | Glioblastoma | Lip(+), Lac(++) | Slightly low |
| 11 | 61/M | Anaplastic astrocytoma | Lac(+++), NAA(+), Cho(+++), Cr/PCr(+) | Markedly low |
| 12 | 52/M | Metastatic brain tumor | Lip(+), Lac(++) | Markedly low |
| 13 | 55/F | Metastatic brain tumor | Lip(+), Lac(++), NAA(+), Cho(+++), Cr/PCr(+) | Markedly low |
| 14 | 67/M | Metastatic brain tumor | Lac(+++) | Markedly low |
Note.—M indicates male; F, female; +, small peak; ++, moderate peak; +++, large peak; Ace, acetate; Ala, alanine; AA, amino acids; Lac, lactate; Succ, succinate; NAA, N-acetylaspartate; Cho, choline; Cr, creatine; PCr, phosphocreatine; Lip, lipids; *, unacceptable because of contamination from neighboring fat; **, unacceptable because of poor shimming conditions.