Cerebral oxygen extraction fraction MRI: Techniques and applications

D Jiang, H Lu - Magnetic resonance in medicine, 2022 - Wiley Online Library
The human brain constitutes 2% of the body's total mass but uses 20% of the oxygen. The
rate of the brain's oxygen utilization can be derived from a knowledge of cerebral blood flow …

[HTML][HTML] Cerebral oxygen metabolism from MRI susceptibility

E Biondetti, J Cho, H Lee - Neuroimage, 2023 - Elsevier
This article provides an overview of MRI methods exploiting magnetic susceptibility
properties of blood to assess cerebral oxygen metabolism, including the tissue oxygen …

[HTML][HTML] Evaluation of whole-brain oxygen metabolism in Alzheimer's disease using QSM and quantitative BOLD

A Yang, H Zhuang, L Du, B Liu, K Lv, J Luan, P Hu… - NeuroImage, 2023 - Elsevier
Objective The objective of this study was to evaluate the whole-brain pattern of oxygen
extraction fraction (OEF), cerebral blood flow (CBF), and cerebral metabolic rate of oxygen …

Spatiotemporal patterns of brain iron-oxygen metabolism in patients with Parkinson's disease

S Yan, J Lu, Y Li, J Cho, S Zhang, W Zhu, Y Wang - European Radiology, 2024 - Springer
Objectives Iron deposition and mitochondrial dysfunction are closely associated with the
genesis and progression of Parkinson's disease (PD). This study aims to extract …

Brain oxygen extraction fraction map** in patients with multiple sclerosis

J Cho, TD Nguyen, W Huang… - Journal of Cerebral …, 2022 - journals.sagepub.com
We aimed to demonstrate the feasibility of whole brain oxygen extraction fraction (OEF)
map** for measuring lesion specific and regional OEF abnormalities in multiple sclerosis …

QQ‐NET–using deep learning to solve quantitative susceptibility map** and quantitative blood oxygen level dependent magnitude (QSM+ qBOLD or QQ) based …

J Cho, J Zhang, P Spincemaille… - Magnetic resonance …, 2022 - Wiley Online Library
Purpose To improve accuracy and speed of quantitative susceptibility map** plus
quantitative blood oxygen level‐dependent magnitude (QSM+ qBOLD or QQ)‐based …

Cerebral oxygen extraction fraction declines with ventricular enlargement in patients with normal pressure hydrocephalus

H Zhuang, J Cho, GCY Chiang, I Kovanlikaya, LA Heier… - Clinical imaging, 2023 - Elsevier
Objective Normal pressure hydrocephalus (NPH) is a neurodegenerative disease that is
potentially reversible by shunt surgery in approximately 60% of patients. Imaging may …

Quantitative BOLD (qBOLD) imaging of oxygen metabolism and blood oxygenation in the human body: A sco** review

AA Alzaidi, R Panek, NP Blockley - Magnetic Resonance in …, 2024 - Wiley Online Library
Purpose There are many approaches to the quantitative BOLD (qBOLD) technique
described in the literature, differing in pulse sequences, MRI parameters and data …

Brain oxygen extraction and neural tissue susceptibility are associated with cognitive impairment in older individuals

GC Chiang, J Cho, J Dyke, H Zhang… - Journal of …, 2022 - Wiley Online Library
Abstract Background and Purpose We investigated the effects of aging, white matter
hyperintensities (WMH), and cognitive impairment on brain iron levels and cerebral oxygen …

Measurement of cerebral oxygen extraction fraction using quantitative BOLD approach: A review

H Li, C Wang, X Yu, Y Luo, H Wang - Phenomics, 2023 - Springer
Quantification of brain oxygenation and metabolism, both of which are indicators of the level
of brain activity, plays a vital role in understanding the cerebral perfusion and the …