Article Figures & Data
Figures
- Fig 1.
ROI analysis for perfusion parameters: CER indicates cerebellum; Put, putamen; I, insula; T, thalamus; A, arterial territory of the anterior cerebral artery; M, arterial territory of the middle cerebral artery; P, arterial territory of the posterior cerebral artery; PREC, precentral gyrus; POSTC, postcentral gyrus.
- Fig 2.
CCD in a 14-year-old girl presenting with MwA and CCD. Slices A and C show rCBF images of the infra- and supratentorial brain, and slices B and D, rCBV images respectively. The patient presented with HCH in the right cerebellum with overt hemispheric perfusion asymmetry. Fourteen of 17 supratentorial ROIs in the left supratentorial hemisphere exceeded the AI threshold with lateralization of hypoperfusion contralateral to the cerebellum. Bars indicate relative values for CBV and CBF.
Tables
Predominant Symptom Abnormal Perfusion Normal Perfusion n = 23 % n = 83 % Headache 21 91.3 69 57.3 Aura symptoms 22 95.7 76 63.1 Visual 10 43.5 44 36.5 Sensory 17 73.9 37 30.7 Motor 8 34.8 22 18.3 Language 11 47.8 16 13.3 Predominant Symptom Patients with Oligemia HCH (CCD Subgroup) Non-HCH n = 23 % n = 12 (9) % n = 11 % Headache 21 91.3 10 (7) 43.5 (30.4) 11 47.8 Aura symptoms 22 95.7 12 (9) 52.2 (39.1) 10 43.5 Visual 10 43.5 5 (2) 21.7 (8.7) 5 21.7 Sensory 17 73.9 7 (5) 30.4 (21.7) 10 43.5 Motor 8 34.8 4 (4) 17.4 (17.4) 4 17.4 Language 11 47.8 6 (6) 26.1 (26.1) 5 21.7 - Table 3:
The number of ROIs with an AI of > 10% in supratentorial oligemia (maximum, 17 per patient), in the group with hemispheric cerebellar hypoperfusion (154/204) and in the group with symmetric cerebellar perfusion (145/187)
Abnormal ROIs (AI > 10%) Patients with Hemispheric Cerebellar Hypoperfusion (n = 12) Patients with Symmetric Cerebellar Perfusion (n = 11) rCBF (No.) Total No. (%) 154 (75.5) 145 (77.5) Contralateral 103 Ipsilateral 51 rCBV (No.) Total No. (%) 155 (75.5) 139 (74.3) Contralateral 101 Ipsilateral 54 AI Absolute Values (%) P Value Group HCH (n = 12) Group Non-HCH (n = 11) Mean SD Mean SD rCBF supratentorial 27.60 6.85 26.30 6.66 .51 rCBV supratentorial 26.75 6.66 24.64 6.27 .48 rCBF infratentorial 30.56 16.77 4.24 3.23 <.001 rCBV infratentorial 25.69 16.00 4.02 2.53 <.001 ↵a Significant differences were noted only for infratentorial ROIs.
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