Article Figures & Data
Figures
- Fig 1.
GW 29 + 6, single-voxel MR spectroscopy of the brain. PRESS with a long TE (144 ms). VOI 2.7 cm3. Cephalic presentation. Normal age-related spectrum.
- Fig 2.
GW 31 + 3, single-voxel MR spectroscopy of the brain. PRESS with a short TE (35 ms). VOI 2.7 cm3. Cephalic presentation. Normal age-related spectrum.
- Fig 3.
GW 24 + 0, single-voxel MR spectroscopy of the brain. PRESS with a long TE (144 ms). VOI 2.7 cm3. Cephalic presentation. Distinct peak in the lactate region in a fetus with a brain tumor.
- Fig 4.
GW 31 + 3, single-voxel MR spectroscopy of the brain. PRESS with a short TE (35 ms). VOI 2.7 cm3. Breech presentation. Peak in the lipid/Lac region. No fetal pathology was found. In this case, a premature rupture of the membranes was present and indications of maternal infection, which confirmed the decision to perform a cesarean delivery. Notice the reduced amniotic fluid on the scout scans.
- Fig 5.
A–C, The linear correlation analysis confirmed the significant increase of NAA/Cr ratio and shows a not significant decrease of Cho/Cr and mIns/Cr ratios with GA in the readable short TE spectra of normally developed fetuses. D and E, Note the increase of the NAA/Cr ratio and the decrease of the Cho/Cr ratio with GA in the readable long TE spectra of normally developed fetuses.
- Fig 6.
Lactate signals found in readable spectra with long and short TEs of normally and pathologically developed fetuses.
Tables
Short TEs (35 ms) Readable Zellweger syndrome Solitary median maxillary central incisor Infratentorial neoplasm IUGR Abdominal mass Cerebral edema Congenital diaphragmatic hernia Microphthalmos Gastroschisis Nonreadable Ovarian cyst Congenital cystic adenomatoid malformation Abdominal mass Long TEs (144 ms) Readable Corpus callosum agenesia Infratentorial mass IUGR Chiari II malformation Asymmetric ventricles Cerebral ischemia Bilateral cheilognathopalatoschisis Cerebral arteriovenous fistula Lung hypoplasia Kidney agenesia Intracranial teratoma Nonreadable Vitium cordis Congenital diaphragmatic hernia
