Methods There were ten healthy volunteers enrolled and each underwent axial T 2 -FLAIR and T 1 W-IR TSE, and axial and coronal PDW and T 2 TSE. The signal-to-noise ratio (SNR) of LGN and contrast-to-noise ratio (CNR) of LGN to the surrounding tissue [optic radiation, posterior ...
All four sequences, T1, T1CE, T2, and FLAIR, were concatenated into a four-channel MR volume X∈R4×240×240×155. Then, a preprocessing pipeline, including axial image resizing to 256×256 and Z-score normalization, was performed. Particularly, Z-score normalization was applied channel-wise...
Conclusions:The choroid plexus, pituitary stalk, pineal gland, dural sinuses, and cortical veins show normal enhancement on postcontrast FLAIR MRI in children, and postcontrast FLAIR imaging appears better than postcontrast T1-W imaging in the assessment of extra-axial enhancing lesions in children....
The scan protocol also included an axial FLAIR sequence (TR = 10,000 ms, TE = 69 ms, TI = 2500 ms, number of slices = 40, resolution = 0.86 × 0.86 × 3 mm), on which a trained rater identified WMH slice by slice using the semi-automa...
Head CT (A) and FLAIR sequences of brain MRI (B-D) for cases 1–4 (A-D) showed mild to moderate ventriculomegaly (upper row), with relatively mild or absent (Case 3) associated parenchymal atrophy as judged by the apical axial cuts (middle row). Some degree of midbrain atrophy is...
Data were acquired using an MRI protocol that included axial fluid-attenuated inversion recovery (FLAIR), three-dimensional (3D) T1-weighted and q-space imaging using single-shot echo-planar sequence. FLAIR images were obtained with fast spin-echo imaging: repetition time (ms)/echo time (ms),...
Conclusions:The choroid plexus, pituitary stalk, pineal gland, dural sinuses, and cortical veins show normal enhancement on postcontrast FLAIR MRI in children, and postcontrast FLAIR imaging appears better than postcontrast T1-W imaging in the assessment of extra-axial enhancing lesions in children....
The paediatric definition of SCI is an infarct-like lesion on brain MRI measuring 鈮 3 mm along the greatest linear dimension and visible in at least two planes of fluidattenuated inversion recovery (FLAIR) T2-weighted images (axial and coronal), without corresponding neurological deficits (DeBaun...
MRIBackground: Cerebral ventriculomegaly is an abnormal feature characteristic of myotonic dystrophy type 1 (DM1). This retrospective study investigated the morphologic changes accompanied by ventriculomegaly in DM1 on brain MRI. Methods: One hundred and twelve adult patients with DM1 and 50 sex- ...