case_images: PMC11282523_01
case_images: None of the cranial MRI images, namely (a) DWI, (b) FLAIR, and (c) Gd-enhanced T1 weighted, showed any abnormal lesions except for a few chronic ischemic changes. (d) MR angiography showed neither stenosis nor occlusion. By contrast, (e) 123I-IMP SPECT showed a remarkable decrease in cerebral blood flow in the left parietal and occipital lobes (red arrows), and a mild decrease in cerebral blood flow in the left anterior lobe (blue arrows). (f) 3DSSP analysis.. 123I-IMP SPECT: 123I-N-isopropyl-p-iodoamphetamine single-photon emission computed tomography; 3DSSP: three-dimensional-stereotactic surface projection; DWI: diffusion-weighted image; FLAIR: fluid-attenuated inversion recovery; MRI: magnetic resonance imaging.
case_images: 10.1177_2050313X241267082-fig1.jpg
case_images: PMC11282523_01_10.1177_2050313X241267082-fig1.jpg
case_images: fig1-2050313X241267082
case_images: Cranial magnetic resonance imaging (MRI) showed no abnormalities in the diffusion-weighted image (Figure 1(a)), the fluid-attenuated inversion recovery image (Figure 1(b)), or the gadolinium-enhanced T1 image (Figure 1(c)). No stenosis or occlusion was observed by magnetic resonance angiography (Figure 1(d)). By contrast, 123I-N-isopropyl-p-iodoamphetamine single-photon emission computed tomography (123I-IMP SPECT) showed a remarkable decrease in CBF in the left parietal and occipital lobes (Figure 1(e) and (f)).