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Yamashita K, Sugimori H, Nakamizo A, Amano T, Kuwashiro T, Watanabe T, Kawamata K, Furuya K, Harada S, Kamei R, Maehara J, Okada Y, Noguchi T. Different hemodynamics of basal ganglia between moyamoya and non-moyamoya diseases using intravoxel incoherent motion imaging and single-photon emission computed tomography. Acta Radiol 2023; 64:769-775. [PMID: 35466686 DOI: 10.1177/02841851221092895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Moyamoya disease (MMD) and non-MMD have different pathogenesis, clinical presentation, and treatment policy. PURPOSE To identify differences in hemodynamics between MMD and non-MMD using intravoxel incoherent motion (IVIM) magnetic resonance imaging (MRI) and single-photon emission computed tomography (SPECT). MATERIAL AND METHODS Patients who had undergone 99mTc-ECD or 123I-IMP SPECT, and IVIM imaging were retrospectively studied. IVIM imaging was acquired using six different b-values. Cerebral blood flow ratio (CBFR) in the basal ganglia was calculated using a standardized volume-of-interest template. The cerebellum was used as a reference region. IVIM perfusion fraction (f) was obtained using a two-step fitting algorithm. Elliptical regions of interest were placed in bilateral basal ganglia on the IVIM f map. Patients were classified into MMD and non-MMD groups. The correlation between CBFR and mean IVIM f (fmean) in the basal ganglia was evaluated using Spearman's rank correlation coefficient. RESULTS In total, 20 patients with MMD and 28 non-MMD patients were analyzed. No significant differences in fmean were observed among MMD, affected hemisphere with non-MMD (non-MMDaff), and unaffected hemispheres with non-MMD (non-MMDunaff). A negative correlation was seen between fmean and CBFR in the MMD group (r = -0.40, P = 0.0108), but not in the non-MMD group (non-MMDaff, r = 0.07, P = 0.69; non-MMDunaff, r = -0.22, P = 0.29). No significant differences were found among MMD and non-MMD patients, irrespective of SPECT tracers. CONCLUSION The combination of IVIM MRI and SPECT appears to allow non-invasive identification of differences in hemodynamics between MMD and non-MMD.
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Affiliation(s)
- Koji Yamashita
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Hiroshi Sugimori
- Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Akira Nakamizo
- Department of Neurosurgery, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toshiyuki Amano
- Department of Neurosurgery, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Takahiro Kuwashiro
- Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Takeharu Watanabe
- Department of Medical Technology, Division of Radiology, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Keisuke Kawamata
- Department of Medical Technology, Division of Radiology, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Kiyomi Furuya
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Shino Harada
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ryotaro Kamei
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Junki Maehara
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Yasushi Okada
- Department of Cerebrovascular Medicine and Neurology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Tomoyuki Noguchi
- Department of Radiology, Clinical Research Institute, 37085National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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