The Use of HU Thresholding in Carotid-Cerebral CT Angiography: A Qualitative Study

Background: CT scans with contrast media administration have been used to confirm the presence of pathology in blood vessel brain. High accuracy and fast scanning time produced by make this modality main choice assessing aneurysm Technological advances development CT-helical image acquisition techniques enabled neuroradiologists evaluate brain aneurysms a short time. Magnetic resonance (MR) angiography has also reported be useful diagnosis aneurysms, but it is generally more time-consuming than 3D CTA, MRI very sensitive movement artifacts.Methods: This research qualitative an observational approach that aims determine management carotid-cerebral CTA artery examination Premier Bintaro Hospital. Unstructured interviews documentation are as study instruments complete required data.Results: Cerebral Angiography technique Hospital uses bolus tracking ROI monitoring Carotid Internal Artery using triggering 100-120 HU peak enhancement monitoring. proven produce optimal Circulus Willis (CoW) region Volume Investigation (VOI) cerebral CT-Scan. Post-processing done displaying images ranging from axial pre-contrast, post-contrast, (pathology), MIP (Axial, coronal, sagittal), Region Interest (structure labeling), VRT-bone removal.Conclusion: Scanning on can display arterial well so post-processed easily without reducing quality related information.