Optimization of Bolus-Tracking Thresholds levels in Cerebral CT Angiography: Influence of Patient Characteristics on contrast enhancement dynamics and radiation dose metrics
Intrinsic (age, gender) and extrinsic (threshold) factors shape CTA enhancement. A 105 ± 5 HU threshold reduces venous contamination, especially in younger patients. CTDIvol remains the preferred dose index. Findings support individualized, resource-efficient CTA protocols aligned with UN SDGs 3, 9, and 12.
Authors
- Suresh Sukumar (ORCID: https://orcid.org/0000-0001-9345-9790)
- Winniecia Dkhar (ORCID: https://orcid.org/0000-0001-5963-3230)
- Rajagopal Kadavigere (ORCID: https://orcid.org/0000-0003-3486-8740)
- Priya Pattath Sankaran (ORCID: https://orcid.org/0000-0002-7201-5733)
- Abhimanyu Pradhan (ORCID: https://orcid.org/0000-0002-2910-5338)
- Ashwin Prabhu (ORCID: https://orcid.org/0009-0009-1450-3921)
- S Sharath (ORCID: https://orcid.org/0000-0003-2860-5100)
- Neil Abraham Barnes
- Pulagam Vamsidhar Reddy (ORCID: https://orcid.org/0009-0003-5850-3217)
Institutions
- Manipal Academy of Higher Education (IN)
- Narayana Health (IN)
Publication Details
- Journal
- F1000Research
- Published
- 2025-11-29
- DOI
- https://doi.org/10.12688/f1000research.171062.2
- Primary Topic
- Radiation Dose and Imaging
- Type
- article
- Field-Weighted Citation Impact
- 0.00