Search Results - "Oh, Sukhoon"
-
1
A Systematic Review and Identification of the Challenges of Deep Learning Techniques for Undersampled Magnetic Resonance Image Reconstruction
Published in Sensors (Basel, Switzerland) (01-01-2024)“…Deep learning (DL) in magnetic resonance imaging (MRI) shows excellent performance in image reconstruction from undersampled k-space data. Artifact-free and…”
Get full text
Journal Article -
2
Straightforward Magnetic Resonance Temperature Measurements Combined with High Frame Rate and Magnetic Susceptibility Correction
Published in Bioengineering (Basel) (01-11-2023)“…Proton resonance frequency shift (PRFS) is an MRI-based simple temperature mapping method that exhibits higher spatial and temporal resolution than temperature…”
Get full text
Journal Article -
3
RF-Induced Heating of Various Tattoos at Magnetic Resonance Imaging Systems
Published in IEEE access (2021)“…This paper presents radiofrequency (RF)-induced heating of single and multiple tattoos during magnetic resonance imaging (MRI) at 1.5 T and 3 T. Various…”
Get full text
Journal Article -
4
In Vivo Magnetic Resonance Thermometry for Brain and Body Temperature Variations in Canines under General Anesthesia
Published in Sensors (Basel, Switzerland) (26-05-2022)“…The core body temperature tends to decrease under general anesthesia. Consequently, monitoring the core body temperature during procedures involving general…”
Get full text
Journal Article -
5
An Approach to Rapid Calculation of Temperature Change in Tissue Using Spatial Filters to Approximate Effects of Thermal Conduction
Published in IEEE transactions on biomedical engineering (01-06-2013)“…We present an approach to performing rapid calculations of temperature within tissue by interleaving, at regular time intervals, 1) an analytical solution to…”
Get full text
Journal Article -
6
Bloch-based MRI system simulator considering realistic electromagnetic fields for calculation of signal, noise, and specific absorption rate
Published in Magnetic resonance in medicine (01-07-2014)“…Purpose To describe and introduce new software capable of accurately simulating MR signal, noise, and specific absorption rate (SAR) given arbitrary sample,…”
Get full text
Journal Article -
7
RF Exposure Assessment for Various Poses of Patient Assistant in Open MRI Environment
Published in Applied sciences (01-06-2021)“…In this study, the radio-frequency (RF) energy exposure of patient assistants was assessed for an open magnetic resonance imaging (MRI) system based on…”
Get full text
Journal Article -
8
Evaluation of the Abdominal Aorta and External Iliac Arteries Using Three-Dimensional Time-of-Flight, Three Dimensional Electrocardiograph-Gated Fast Spin-Echo, and Contrast-Enhanced Magnetic Resonance Angiography in Clinically Healthy Cats
Published in Frontiers in veterinary science (09-06-2022)“…Arterial thromboembolism is associated with high morbidity and mortality rates in cats. Definitive diagnosis requires advanced imaging modalities, such as…”
Get full text
Journal Article -
9
Observation of magnetic susceptibility changes within the thalamus: a comparative study between healthy and Parkinson’s disease afflicted cynomolgus monkeys using 7 T MRI
Published in Journal of analytical science and technology (29-12-2019)“…Background Although the thalamus is known to modulate basal ganglia function related to motor control activity, the abnormal changes within the thalamus during…”
Get full text
Journal Article -
10
Measurement of SAR-induced temperature increase in a phantom and in vivo with comparison to numerical simulation
Published in Magnetic resonance in medicine (01-05-2014)“…Purpose To compare numerically simulated and experimentally measured temperature increase due to specific energy absorption rate from radiofrequency fields…”
Get full text
Journal Article -
11
Radio-Frequency Vector Magnetic Field Mapping in Magnetic Resonance Imaging
Published in IEEE transactions on medical imaging (01-03-2021)“…A method is presented to measure the radio-frequency (RF) vector magnetic field inside an object using magnetic resonance imaging (MRI). Conventional…”
Get full text
Journal Article -
12
Proposed Safety Guidelines for Patient Assistants in an Open MRI Environment
Published in International journal of environmental research and public health (17-11-2022)“…The wide-open side of an open magnetic resonance imaging (MRI) system allows a patient to easily contact the patient assistant during MRI scans. A…”
Get full text
Journal Article -
13
A Fast Method to Estimate the SAR Distribution From Temperature Increased Maps
Published in IEEE journal of electromagnetics, RF and microwaves in medicine and biology (01-09-2024)“…Objectives: Estimation of Specific energy Absorption Rate (SAR) is critical to assess RF safety for devices that rely on the transmission of electromagnetic…”
Get full text
Journal Article -
14
Design and implementation of a quadrature RF volume coil for in-vivo MR brain imaging of rhesus macaque monkey in a stereotaxic head frame
Published in 2009 IEEE MTT-S International Microwave Symposium Digest (01-06-2009)“…We describe the design and implementation of a unique coil for in-vivo rhesus macaque brain imaging in a stereotaxic device. The RF volume coil consists of a 2…”
Get full text
Conference Proceeding -
15
Complex difference constrained compressed sensing reconstruction for accelerated PRF thermometry with application to MRI-induced RF heating
Published in Magnetic resonance in medicine (01-04-2015)“…Purpose Introduce a novel compressed sensing reconstruction method to accelerate proton resonance frequency shift temperature imaging for MRI‐induced…”
Get full text
Journal Article -
16
Permittivity and performance of dielectric pads with sintered ceramic beads in MRI: early experiments and simulations at 3 T
Published in Magnetic resonance in medicine (01-07-2013)“…Passive dielectric materials have been used to improve aspects of MRI by affecting the distribution of radiofrequency electromagnetic fields. Recently,…”
Get full text
Journal Article -
17
Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms and in vivo
Published in Magnetic resonance in medicine (01-01-2010)“…It is important to accurately characterize the heating of tissues due to the radiofrequency energy applied during MRI. This has led to an increase in the use…”
Get full text
Journal Article -
18
-
19
Quantitative magnetic susceptibility assessed by 7T magnetic resonance imaging in Alzheimer's disease caused by streptozotocin administration
Published in Quantitative imaging in medicine and surgery (01-03-2020)“…Streptozotocin treatment has emerged as an alternative model of sporadic Alzheimer's disease (SAD). Streptozotocin-induced alterations in iron and calcium…”
Get full text
Journal Article -
20