Article Figures & Data
Figures
- Fig 1.
Axial T2-weighted (A) and axial T1-weighted (B) sections in a premature neonate (gestational age, 31 weeks; case 4, Table). Periventricular WM fan-shaped linear lesions are evident bilaterally on both T2 and T1 sequences. Parietal hematoma (black arrows), GMH (arrowhead), and a lesion in the corpus callosum (white arrows) are also evident.
- Fig 2.
Axial T2-weighted (A) and coronal T1-weighted (B) sections in a full-term neonate (case 18, Table). Right frontal WM linear lesions suggestive of thrombotic DMVs are shown (black arrows). Arrowhead denotes a small right GMH.
- Fig 3.
Coronal (A) and axial (B) T2-weighted sections in a full-term neonate (case 13, Table). Periventricular linear lesions (black arrows) associated with linear cysts (arrowheads) are shown.
- Fig 4.
Axial ADC maps in premature (A, same case as in Fig 1) and full-term (B, same case as in Fig 2) neonates. ADC reduction (arrows) is evident in the WM surrounding linear lesions described on T1- and T2-weighted images. A sample region of interest for ADC calculation (A) has been traced in the right frontal lobe. The white arrow and arrowhead show ADC alterations corresponding to parietal hematoma and a corpus callosum lesion.
- Fig 5.
Axial SWI in a full-term neonate (case 14, Table) shows small dilated vessels, compatible with DMV distribution, in the left periventricular WM (black arrows).
- Fig 6.
Coronal and axial T2-weighted sections in a full-term neonate (case 15, Table) examined at 9 days (A and B) and 18 months (C and D) of life. Bilateral anterior and posterior periventricular radial WM lesions are due to DMV pathology in the first examination (arrows in A and B). A PVL-like pattern with hyperintense signal intensity and reduced thickness of periventricular WM is evident on follow-up (C and D).
- Fig 7.
The graph shows the evolution of lesions with time (days in logarithmic scale).
Tables
Characteristics of the patients
Patient GA (weeks) MRI Indication MRI Timing (days from birth) MRI Findings Associated Findings WM Injury Location ADC Pattern Sequences Used for Evaluation of Blood Products 2D MR Venography 1 30 Difficult delivery 10 A GMH AF, FP FR T2 FFE Yes 2 31 Seizures 48 B AF N SWI No 3 31 Difficult delivery 9 A GMH, PH, CCE AF, FP, PT, T FR SWI No 58 B AF, FP, PT N 4 31 Difficult delivery 4 A GMH AF, FP, PT FR T2 echo-planar Yes 80 B AF, FP, PT N 5 32 Difficult delivery 26 A GMH AF, FP, PT, T N T2-FFE Yes 6 32 Difficult delivery 6 B GMH, PH, TI AF, FP DR T2 echo-planar Yes 111 B AF, FP 7 34 Difficult delivery 44 A AF, FP, PT N T2-FFE Yes 8 35 Difficult delivery 38 B AF, FP, PT N SWI No 9 35 Difficult delivery 45 B GMH AF, FP, PT, T N T2 echo-planar No 10 36 Pathologic US 3 A GMH, CCE AF, FP, PT FR SWI No 11 36 Difficult delivery 0 A AF, FP, PT DR SWI Yes 18 A AF, FP, PT N 628 PVL AF, FP, PT N 12 37 Seizures 14 B AF, FP, PT, T N T2 echo-planar Yes 287 PVL AF, FP, PT, T N 13 37 Seizures 6 A GMH, TI, CCE AF, FP, PT, T FR SWI Yes 48 B AF, FP, PT, T N 14 38 Difficult delivery 9 B AF, FP, PT, T FR SWI, T2-FFE Yes 567 PVL AF, FP, PT, T 15 39 Difficult delivery 14 B PH, TI, CCE AF, FP, PT, T DR T2 echo-planar No 730 PVL AF, FP, PT, T 16 40 Seizures 4 A AF, FP, PT FR SWI Yes 25 B AF, FP, PT N 17 40 Seizures 3 A PH, SAH AF FR SWI Yes 36 A AF 18 40 Seizures 10 A AF, FP, PT, T DR T2 echo-planar No 26 B AF, FP, PT, T N 19 40 Seizures 0 A TI, SAH AF, FP, PT FR T2-FFE Yes 7 A AF, FP, PT N 20 41 Difficult delivery 21 B TI, CCE AF, FP, PT, T N SWI No 452 PVL AF, FP, PT, T N 21 41 Seizures 0 A AF, FP, PT N SWI Yes 5 A AF N 416 Normal N -
Note:—GA indicates gestational age; MRI, MR imaging; TI, thalamic ischemia; CCE, corpus callosum edema; SAH, subarachnoid hemorrhage; A, pattern A; B, pattern B; AF, anterior frontal WM; FP, frontoparietal WM; PT, peritrigonal WM; T, temporal WM; DR, diffusely reduced ADC values; FR, focally reduced (surrounding lesions) ADC values; N, normal ADC values.
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