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Table 1 Detailed data of the 13 patients (compared examinations are framed). Impaired or preserved CVR in PCT is based on Tmax calculation.

From: A comparative study of perfusion CT and 99mTc-HMPAO SPECT measurement to assess cerebrovascular reserve capacity in patients with internal carotid artery occlusion

Patient no. Age (years Sex Symptomes DSA Prestudy MRI CVR   Treatment DSA after surgery CVR after treatment   Clinical findings after surgery
       SPECT PCT    SPECT PCT  
1 56 w Recurrent hemiparesis right, recurrent aphasia ICA occlusion left Small stroke Impaired Impaired High-flow EC-IC bypass left-sided Bypass patient   Impaired Stable
2 69 m Recurrent hemiparesis left, left handed ICA occlusion right, ICA occlusion left (40-50%) Multiple small strokes Preserved   Standard EC-IC bypass right-sided Bypass patient Preserved Impaired Improved
3 27 w Left EC-IC bypass in 2002. No symptoms ICA occlusion left Small, stroke Preserved Preserved Standard EC-IC bypass right-sided Bypass patient    Stable
4 51 w Vertigo, recurrent hemihypasthesia (TIA) ICA occlusion right & left Small stroke Impaired   Standard EC-IC bypass right-sided Bypass patient Impaired Impaired Improved
5 18 w Recurrent left hemihypasthesia (TIA), recurrent aphasia ICA stenosis right No stroke Impaired   Standard EC-IC bypass right-sided Bypass patient Preserved Preserved Improved
6 56 m Hemiparesis and hemihypasthesia right, aphasia ICA occlusion right & left Small stroke Impaired   High-flow EC-IC bypass left-sided Bypass patient Preserved Preserved Stable
7 56 w Impaired vision, diplopic images ACI aneurysma & ICA stenosis left ACI aneurysma Impaired   Standard EC-IC bypass left-sided, trapping ACI giant aneurysma Bypass patient Preserved Preserved Stable
8 51 w Recurrent hemiparesis left ICA occlusion right Right-sided Stroke MCA Impaired   Standard EC-IC bypass right-sided Bypass patient Preserved Preserved Stable
9 53 w Recurrent aphasia and hypaesthesia right ICA/MCA stenosis left Small stroke Impaired Impaired High-flow EC-IC bypass left-sided Bypass patient    Stable
10 59 m Impaired vision, recurrent aphasia, syncope ICA occlusion right & left No stroke Impaired Impaired High-flow EC-IC bypass left-sided Bypass patient    Stable
11 59 m Hemiparesis right, recurrent aphasia ICA stenosis right & left Left-sided Stroke Impaired Impaired High-flow EC-IC bypass left-sided Bypass patient    Stable
12 38 w Hemihypasthesia (TIA) left ICA stenosis right No stroke Preserved Preserved   Bypass patient    Stable
13 61 m Hemiparesis right, transient aphasia ICA stenosis right & left; A. vertebral is stenosis [22] Small stroke Impaired Impaired High-flow EC-IC bypass left-sided Bypass patient    Stable