Abstract
SUMMARY: Time-density curve analysis of DSA provides useful blood flow information. However, manually selecting the ROI is time-consuming. We developed an automatic technique to provide arterial, capillary, and venous vasculatures with corresponding time-density curves. This study retrospectively analyzed the data of 36 patients with unilateral carotid stenosis. We found that the full width at half maximum of the time-density curve for the automatically segmented capillary vasculature is a suitable representation of the cerebral circulation time.
ABBREVIATIONS:
- CCT
- cerebral circulation time
- FWHM
- full width at half maximum
- I1 and I2
- the internal carotid artery at 2 locations
- IA
- cervical internal carotid artery in the lateral view
- IB
- cavernous segment of the internal carotid artery in the lateral view
- MCP
- manually selected capillary phase
- PA
- posteroanterior
- TDC
- time-density curve
- © 2019 by American Journal of Neuroradiology
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