Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Low-field Mri"”.
-
Design and Construction of a Low-Cost, Low-Field MRI System for MR Signal Acquisition
Low-field Magnetic Resonance Imaging (MRI) offers a cost-effective pathway to accessible medical scanning in resource-limited settings. This thesis presents the design, optimisation, and construction of a small-scale low-field MRI system for signal acquisition by making use of permanent magnets and …
-
Streamoscope: A Low-Cost, Open-Source, USB-3-Capable Streaming Data Acquisition System for Low-Field MRI
Magnetic Resonance Imaging (MRI) is a powerful, safe imaging technique based on using magnetism to provide contrast between soft tissues. Portable, low-field MRI is a growing area that has already demonstrated value in both educational and clinical domains. Low-field MRI systems need to acquire …
-
Einsatz der Niederfeld-Extremitäten-Magnet-Resonanz-Tomographie (E-MRT) in der Frakturdiagnostik : Untersuchungen zu Durchführbarkeit, Kosten und Stellenwert
Study objectives: A dedicated low-field MRI was investigated regarding the costs and the diagnostic value in detecting acute fractures of the distal extremities compared to conventional x-ray. Material and methods: 236 patients with the clinical suspicion of a fracture at the distal extremities …
-
Reed-Relay Switched Tuning Circuit for Stretchable RF Coils in Low Field, Portable MRI
While MRI (Magnetic Resonance Imaging) technology allows us to get detailed images of the inside of a subject’s body, it most commonly requires very expensive and large-scale machinery which limits the scenarios it can be used in. These types of costly MRI are usually high-field MRI, which operates …
-
Accuracy of Open MRI for Guiding Injection of the Equine Deep Digital Flexor Tendon within the Hoof
… diagnosed using magnetic resonance imaging (MRI) in horses with foot pain. The prognosis for horses with DDFT lesions to return to previous levels of performance is poor. Treatment options are limited; consisting of conservative therapy, desmotomy of the accessory ligament of the deep digital …
-
Mitigating Electromagnetic Interference in Unshielded MRI: Implementation, Experimentation, and Future Directions
Portable, Low-Field MRI broadens access and enables numerous new applications such as point-of-care. Operating outside an RF-shielded room introduces electromagnetic interference (EMI), degrading further the signal-to-noise ratio (SNR) which is already diminished due to the lower magnetic fields …
-
Rotating magnets as spatial encodings for portable MRI applications
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
-
Comparison of radiographic guidance to magnetic resonance imaging guidance for injection of the collateral ligaments of the distal interphalangeal joint in an equine cadaver model
… joint using magnetic resonance imaging (MRI) versus radiographic guidance. Equine cadaver digit pairs (n=10) were divided by random assignment to injection of the ligament by either technique and assessed using post-injection MRI or gross sections. Images from the proximal, middle, and …
-
Characterization of natural porous media by NMR and MRI techniques : high and low magnetic field studies for estimation of hydraulic properties
… is mostly performed with superconducting high field scanners but low field scanners promise longer relaxation times and therefore smaller loss of signal from water in small and partially filled pores. By this reason high and low field NMR experiments were conducted on these porous media to …