Intracranial flow velocity quantification using non-contrast four-dimensional flow MRI: A prospective comparative study with transcranial doppler ultrasound
- Authors
- Ha, S.-Y.; Kang, Y.; Lee, H.-J.; Hwang, M.; Baik, J.; Park, S.
- Issue Date
- Jan-2022
- Publisher
- MDPI
- Keywords
- Blood flow velocity; MRI angiography; Transcranial Doppler sonography
- Citation
- Diagnostics, v.12, no.1
- Journal Title
- Diagnostics
- Volume
- 12
- Number
- 1
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/61791
- DOI
- 10.3390/diagnostics12010023
- ISSN
- 2075-4418
2075-4418
- Abstract
- Four-dimensional (4D) flow magnetic resonance imaging (MRI) allows three-dimensional velocity encoding to measure blood flow in a single scan, regardless of the intracranial artery direction. We compared blood flow velocity quantification by non-contrast 4D flow MRI and by transcranial Doppler ultrasound (TCD), the most widely used modality for measuring velocity. Twenty-two patients underwent both TCD and non-contrast 4D flow MRI. The mean time interval between TCD and non-contrast 4D flow MRI was 0.7 days. Subsegmental velocities were measured bilaterally in the middle cerebral and basilar arteries using TCD and non-contrast 4D flow MRI. Intracranial velocity measurements using TCD and non-contrast 4D flow MRI demonstrated a strong correlation in the bilateral M1, especially at the proximal segment (right r = 0.74, left r = 0.78; all p < 0.001). Mean velocities acquired with 4D flow MRI were approximately 8 to 10% lower than those acquired with TCD according to the location of M1. Intracranial arterial flow measurements estimated using non-contrast 4D flow MRI and TCD showed strong correlation. 4D flow MRI enables simultaneous assessment of vascular morphology and quantitative hemodynamic measurement, providing threedimensional blood flow visualization. 4D flow MRI is a clinically useful sequence with a promising role in cerebrovascular disease. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.