PMC10338861_01
MR angiography shows multiple levels of abnormal progressive vessel luminal stenoses involving bilateral ICA supraclinoid segments, bilateral ACA A1 segments, and bilateral MCA M1 segments, which implied Moyamoya disease.
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F1
The MRI showed multiple levels of abnormal progressive luminal vessel stenosis involving bilateral ICA supraclinoid segments, bilateral ACA A1 segments, and bilateral MCA M1 segments (Figure 1).
Tc-99m ECD brain SPECT scan shows mild to moderate hypoperfusion in bilateral frontal and left temporal regions.
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F2
Tc-99m ECD brain perfusion SPECT was also carried out to evaluate cerebral circulation, which showed mild to moderate hypoperfusion in bilateral frontal and left temporal regions (Figure 2).