Search Results - "Vaughan, John Thomas"

Accessible magnetic resonance imaging: A review by Geethanath, Sairam, Vaughan, John Thomas

“…The role of MRI in diagnostics, prognostics, and discoveries in basic sciences has been well established. However, access to this life‐saving technology is…”
Get full text

Expanding access to magnetic resonance education through open-source web tutorials by Tong, Gehua, Ananth, Rishi, Vaughan, Jr, John Thomas, Geethanath, Sairam

“…This study presents a tool that introduces the fundamental concepts of magnetic resonance (MR) by integrating related science, technology, engineering, arts,…”
Get full text

Automated detection of motion artifacts in brain MR images using deep learning by Manso Jimeno, Marina, Ravi, Keerthi Sravan, Fung, Maggie, Oyekunle, Dotun, Ogbole, Godwin, Vaughan, Jr, John Thomas, Geethanath, Sairam

“…Quality assessment, including inspecting the images for artifacts, is a critical step during magnetic resonance imaging (MRI) data acquisition to ensure data…”
Get full text

Accelerated MRI using intelligent protocolling and subject-specific denoising applied to Alzheimer's disease imaging by Ravi, Keerthi Sravan, Nandakumar, Gautham, Thomas, Nikita, Lim, Mason, Qian, Enlin, Jimeno, Marina Manso, Poojar, Pavan, Jin, Zhezhen, Quarterman, Patrick, Srinivasan, Girish, Fung, Maggie, Vaughan, Jr, John Thomas, Geethanath, Sairam

“…Magnetic Resonance Imaging (MR Imaging) is routinely employed in diagnosing Alzheimer's Disease (AD), which accounts for up to 60-80% of dementia cases…”
Get full text

Tailored magnetic resonance fingerprinting for simultaneous non‐synthetic and quantitative imaging: A repeatability study by Qian, Enlin, Poojar, Pavan, Vaughan, John Thomas, Jin, Zhezhen, Geethanath, Sairam

“…Purpose The goals of this study include: (a) generating tailored magnetic resonance fingerprinting (TMRF) based non‐synthetic imaging; (b) assessing the…”
Get full text

A framework for validating open-source pulse sequences by Tong, Gehua, Gaspar, Andreia S., Qian, Enlin, Ravi, Keerthi Sravan, Vaughan, John Thomas, Nunes, Rita G., Geethanath, Sairam

“…Open-source pulse sequence programs offer an accessible and transparent approach to sequence development and deployment. However, a common framework for…”
Get full text

Open-source magnetic resonance imaging acquisition: Data and documentation for two validated pulse sequences by Tong, Gehua, Gaspar, Andreia S., Qian, Enlin, Ravi, Keerthi Sravan, Vaughan, John Thomas, Nunes, Rita G., Geethanath, Sairam

“…Raw data, simulated and acquired phantom images, and quantitative longitudinal and transverse relaxation times (T1/T2) maps from two open-source Magnetic…”
Get full text

Temperature‐based MRI safety simulations with a limited number of tissues by Carluccio, Giuseppe, Akgun, Can, Vaughan, John Thomas, Collins, Christopher

“…Purpose Demonstrate ability to produce reasonable simulations of temperature using numerical models of the human body with a limited number of tissues. Methods…”
Get full text

Superconducting magnet designs and MRI accessibility: A review by Manso Jimeno, Marina, Vaughan, John Thomas, Geethanath, Sairam

“…Presently, magnetic resonance imaging (MRI) magnets must deliver excellent magnetic field (B0) uniformity to achieve optimum image quality. Long magnets can…”
Get full text

Repeatability of image quality in very low‐field MRI by Poojar, Pavan, Oiye, Ivan Etoku, Aggarwal, Kunal, Jimeno, Marina Manso, Vaughan, John Thomas, Geethanath, Sairam

“…Background Very low‐field MR has emerged as a promising complementary device to high‐field MRI scanners, offering several advantages. One of the key benefits…”
Get full text

RF Head Coil Design With Improved RF Magnetic Near-Fields Uniformity for Magnetic Resonance Imaging (MRI) Systems by Sung-Min Sohn, DelaBarre, Lance, Gopinath, Anand, Vaughan, John Thomas

“…Higher magnetic field strength in magnetic resonance imaging (MRI) systems offers higher signal-to-noise ratio, contrast, and spatial resolution in magnetic…”
Get full text

A Compact, High Power Capable, and Tunable High Directivity Microstrip Coupler by Sohn, Sung-Min, Gopinath, Anand, Vaughan, John Thomas

“…A coupler is an indispensable component to sample the forward and reflected power for the real-time radio frequency (RF) power monitoring system. The…”
Get full text

Towards Ultra-Low RF Power Simultaneous Transmit and Receive (STAR) MRI with a Wearable RF Transceiver Head Coil by Colwell, Zachary A., Kandala, Sri Kirthi, DelaBarre, Lance, Idiyatullin, Djaudat, Adriany, Gregor, Garwood, Michael, Vaughan, John Thomas, Sohn, Sung-Min

“…Simultaneous transmit and receive (STAR) is an emerging MRI technology that enables the continuous SWIFT pulse sequence to be used for imaging short T2…”
Get full text

Design of an Electrically Automated RF Transceiver Head Coil in MRI by Sung-Min Sohn, DelaBarre, Lance, Gopinath, Anand, Vaughan, John Thomas

“…Magnetic resonance imaging (MRI) is a widely used nonionizing and noninvasive diagnostic instrument to produce detailed images of the human body. The…”
Get full text

Automatic RF leakage signal canceler in MRI applications by Sung-Min Sohn, Garwood, Michael, Vaughan, John Thomas

“…This work presents the feasibility demonstration of an automatic RF leakage canceler for magnetic resonance imaging (MRI) applications that require a…”
Get full text

8-Channel RF head coil of MRI with automatic tuning and matching by Sung-Min Sohn, DelaBarre, Lance, Vaughan, John Thomas, Gopinath, Anand

“…The Radio Frequency (RF) coil is an essential part of hardware in Magnetic Resonance Imaging (MRI) systems and microstrip transmission line (TEM) RF coils have…”
Get full text

Tunable and high directivity coupler for MRI applications by Sung-Min Sohn, Gopinath, Anand, Vaughan, John Thomas

“…This paper proposes a tunable and high directivity coupler that is used a RF power monitor in ultra-high field magnetic resonance imaging (MRI) systems. High…”
Get full text

RF multi-channel head coil design with improved B1+ Fields uniformity for high field MRI systems by Sung-Min Sohn, DelaBarre, Lance, Vaughan, John Thomas, Gopinath, Anand

“…In ultra high field MRI systems (7 tesla and higher), the wavelength inside the body is short and smaller than the human anatomy at the Larmor frequency. At…”
Get full text

Π (Pi)-matching technique for RF coil of MRI systems by Sung-Min Sohn, DelaBarre, Lance, Vaughan, John Thomas, Gopinath, Anand

“…Radio frequency (RF) coils are an essential part of hardware in Magnetic Resonance Imaging (MRI) systems and are used to excite the magnetized protons inside…”
Get full text

Auto-tuning of the RF transmission line coil for high-fields magnetic resonance imaging (MRI) systems by Sung-Min Sohn, Vaughan, J. T., Gopinath, A.

“…RF coil with microstip transmission line elements have been used for high-fields magnetic resonance imaging (MRI) to inductively excite and receive the nuclear…”
Get full text