scholarly journals Evaluation of the aortic arch injection method using 50% diluted-contrast medium for the measurement of cerebral blood volume with an angiographic C-arm system

2013 ◽  
Vol 7 (3) ◽  
pp. 145-155 ◽  
Author(s):  
Hiroshi ITOKAWA ◽  
Masao MORIYA ◽  
Michio FUJIMOTO ◽  
Yoshiyuki TOMITA ◽  
Noriyoshi OKAMOTO ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Aortic Arch ◽  
Blood Volume ◽  
Cerebral Blood Volume ◽  
Injection Method

scholarly journals Optimal dilution of contrast medium for quantitating parenchymal blood volume using a flat-panel detector

2017 ◽  
Vol 46 (1) ◽  
pp. 464-474 ◽  
Author(s):  
Takumi Kuriyama ◽  
Nobuyuki Sakai ◽  
Mikiya Beppu ◽  
Chiaki Sakai ◽  
Hirotoshi Imamura ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Blood Volume ◽  
Cerebral Blood Volume ◽  
Therapeutic Interventions ◽  
Flat Panel ◽  
Flat Panel Detector ◽  
Perfusion Studies ◽  
Power Injector ◽  
Before And After ◽  
Parenchymal Blood Volume

Objective Similar to perfusion studies after acute ischemic stroke, measuring cerebral blood volume (CBV) via C-arm computed tomography before and after therapeutic interventions may help gauge subsequent revascularization. We tested serial dilutions of intra-arterial injectable contrast medium (CM) to determine the optimal CM concentration for quantifying parenchymal blood volume by flat-panel detector imaging (FD-PBV). Methods CM was diluted via saline power injector, instituting time delays for FD-PBV studies. A red/green/blue (RGB) color scale was employed to quantify/compare FD-PBV and magnetic resonance-derived CBV (MRCBV). Results Contrast values of right and left common carotid arteries did not differ significantly at CM dilutions of ≥20%. RGB analysis of FD-PBV imaging (relative to MR-CVB), showed CM dilution altered the colors (by 16%), increasing red and decreasing blue ratios. Conclusion Diluting CM to 20% resulted in no laterality differential of FD-PBV imaging, with left/right quantitative ratios approaching 1.1 (optimal for clinical use).

scholarly journals On the measurement of absolute cerebral blood volume (CBV) using vascular-space-occupancy (VASO) MRI

2008 ◽  
Vol 61 (3) ◽  
pp. 659-667 ◽  
Author(s):  
Jinsoo Uh ◽  
Kelly Lewis-Amezcua ◽  
Rani Varghese ◽  
Hanzhang Lu
Keyword(s):  
Blood Volume ◽  
Cerebral Blood Volume ◽  
Vascular Space
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