Article Figures & Data
Figures
- Fig 1.
Schematic of the extended Papez system highlighting the principal connections of the mammillary bodies.
- Fig 2.
Arrows indicate the following: abnormally high-signal MBs on an axial T2-weighted image (A); abnormally low-signal MBs on an axial T1-weighted image (B); and abnormally high-signal MBs on DWI, b-value = 1000, accompanied by low ADC (not shown) (C).
- Fig 3.
Sagittal T1-weighted MR imaging. The arrows indicate abnormal, low signal in MBs at 6 days (A) and MB atrophy at 3 (B) and 19 (C) months.
- Fig 4.
Day (postbirth) of initial MR imaging in patients with hypothermia treatment or without (normothermia). The day of scanning was typically days 5–7 for the hypothermia-treated patients, whereas there was a greater range of scanning days for patients with normothermia.
Tables
- Table 1:
General demographic and clinical findings of neonates with high MB signal on T2-weighted images
Cases with T2-Weighted High-Signal MB (n = 31) Sex, male/female 15:16 Gestational age (mean) (wk) 40 ± 2.0 Birth weight (mean) (kg) 3113 ± 556 Apgar 1 min (median) (IQR) 2 (3) Apgar 5 min (median) (IQR) 5 (4) Age at first MR imaging in days after birth (median) (IQR) 6 (2) Field strength of MR imaging (1.5T/3T) 17/14 Grade of encephalopathy (Sarnat I/II/III) 4/25/2 Hypothermia (%) 18 (58) Died (%) 4 (13) Normal findings on clinical follow-up (%) 21 (68) Abnormal findings on clinical follow-up (%) 5 (16) Severe hyponatremia (<130 mEq/L) (%) 8 (26) Systemic infection (%) 3 (10) Note:—IQR indicates interquartile range.
Pattern NL 13 (41.9%) BGT 5 (16.1%) WS 9 (29%) NT 3 (9.7%) Large subdural hematoma 1 (3.2%) Total 31 Note:—NL indicates normal; BGT, basal ganglia and thalamus; WS, watershed; NT, near total.
Additional Structures F 1 HC 4 AT 0 CG 1 AT/F 1 HC/F 7 More than 2 involved 4 None 13 (41.9%) Total 31 Note:—F indicates fornix; HC, hippocampus; AT, anterior thalamus; CG, cingulate gyrus.
