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