PMC8492408_01
Radiological findings of a 7-year-old boy who developed oro-mandibular dystonia and transient ischemic attack (Case 1). (a) No parenchymal lesions were observed on FLAIR image (b) Magnetic resonance angiography showed the narrowing of the carotid forks and their branches on both sides. Moyamoya vessels were more apparent in the right side. (c) 123I-IMP SPECT demonstrated a marked decrease in cerebral blood flow (CBF) on the right side, including the striatum and cortex. (d) On follow-up SPECT at 4 months after superficial temporal artery to middle cerebral artery anastomosis and encephalo-duro-myo-arteriopericranial synang onto the right side, CBF markedly improved on the operated hemisphere.
SNI-12-449-g001.jpg
PMC8492408_01_SNI-12-449-g001.jpg
F1
SPECT demonstrated a marked decrease in cerebral blood flow (CBF), including the striatum and cortex, in the right cerebral hemisphere [Figure 1]. CBF improved markedly after surgery [Figure 1].
PMC8492408_02
Radiological findings of a 7-year-old boy who developed oro-mandibular dystonia (Case 2). (a) No parenchymal lesions were observed on FLAIR image (b) Magnetic resonance angiography showed the stenosis of the carotid forks and their branches on both sides. (c) 123I-IMP SPECT demonstrated a significant decrease in cerebral blood flow (CBF) on the left side, including the striatum and cortex. (d) On follow-up SPECT at 6 months after superficial temporal artery to middle cerebral artery anastomosis and encephalo-duro-myo-arterio-pericranial synang on both sides, CBF markedly improved on the operated hemispheres.
SNI-12-449-g002.jpg
PMC8492408_02_SNI-12-449-g002.jpg
F2
SPECT showed a decreased in CBF in the left hemisphere, including the striatum and cortex [Figure 2]. CBF significantly improved after surgery [Figure 2].