Low-Dose 3D Rotational Angiography in Measuring the Size of Intracranial Aneurysm: In Vitro Feasibility Study Using Aneurysm Phantom
Open Access
- 1 March 2021
- journal article
- research article
- Published by Korean Society of Interventional Neuroradiology in Neurointervention
- Vol. 16 (1), 59-63
- https://doi.org/10.5469/neuroint.2020.00437
Abstract
Purpose: Three-dimensional (3D) measurement of intracranial aneurysms is important in planning endovascular treatment, and 3D rotational angiography (RA) is effective in accurate measurement. The purpose of this study was to evaluate the feasibility of low dose 3D RA (5 seconds 0.10 mu Gy/frame) in measuring an intracranial aneurysm using an in vitro phantom. Materials and Methods: We investigated an in vitro 3D phantom of an intracranial aneurysm with 10 acquisitions of 3D RA with a conventional dose (5 seconds 0.36 mu Gy/frame) and 10 acquisitions with a low-dose (5 seconds 0.10 mu Gy/frame). 3D size and neck diameters of the aneurysm were measured and compared between the 2 groups (conventional and low-dose) using noninferiority statistics. Results: The aneurysm measurements were well-correlated between the 2 readers, and noninferiority in the measurement of aneurysmal size of low-dose 3D RA was demonstrated, as the upper margin of the 1-sided 97.5% confidence interval did not cross the pre-defined noninferiority margin of 0.2 mm by the 2 readers. Conclusion: Low-dose (5 seconds 0.10 mu Gy/frame) cerebral 3D RA is technically feasible and not inferior in in vitro 3D measurement of an intracranial aneurysm. Thus, low-dose 3D RA is promising and needs further evaluation for its clinical utility in the planning of endovascular treatment of an intracranial aneurysm.Keywords
This publication has 9 references indexed in Scilit:
- Image Quality of Low-Dose Cerebral Angiography and Effectiveness of Clinical Implementation on Diagnostic and Neurointerventional Procedures for Intracranial AneurysmsAmerican Journal of Neuroradiology, 2019
- Diagnostic quality and accuracy of low dose 3D-DSA protocols in the evaluation of intracranial aneurysmsJournal of NeuroInterventional Surgery, 2014
- Reducing radiation dose while maintaining diagnostic image quality of cerebral three-dimensional digital subtraction angiography: an in vivo study in swineJournal of NeuroInterventional Surgery, 2013
- 3D Rotational Angiography: The New Gold Standard in the Detection of Additional Intracranial AneurysmsAmerican Journal of Neuroradiology, 2008
- 3D Rotational Angiography: Use of Propeller Rotation for the Evaluation of Intracranial Aneurysms2005
- Comparison of 2D and 3D Digital Subtraction Angiography in Evaluation of Intracranial Aneurysms2002
- Comparison of Three-Dimensional Rotational Angiography with Digital Subtraction Angiography in the Assessment of Ruptured Cerebral Aneurysms2002
- Clinical Benefits of Rotational 3D Angiography in Endovascular Treatment of Ruptured Cerebral Aneurysm2002
- Intracranial Aneurysms: Clinical Value of 3D Digital Subtraction Angiography in the Therapeutic Decision and Endovascular TreatmentRadiology, 2001