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| http://dx.doi.org/10.1177/15910199030090S212 | DOI Listing |
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Initial results of the Hyperion IIPET insert for simultaneous PET-MRI applied to atherosclerotic plaque imaging in New-Zealand white rabbits.
Phys Med Biol
October 2024
School of Biomedical Engineering & Imaging Sciences, King's College London, Department of Biomedical Engineering, St. Thomas' Hospital, Lambeth Road Palace, London, SE1 7EH, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
In preclinical research, in vivo imaging of mice and rats is more common than any other animal species, since their physiopathology is very well- known and many genetically altered disease models exist. Animal studies based on small rodents are usually performed using dedicated preclinical imaging systems with high spatial resolution. For studies that require animal models such as mini- pigs or New-Zealand White (NZW) rabbits, imaging systems with larger bore sizes are required.
View Article and Find Full Text PDFDeuterium MR spectroscopy: potential applications in oncology research.
BJR Open
January 2024
Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, United States.
Metabolic imaging in clinical practice has long relied on PET with fluorodeoxyglucose (FDG), a radioactive tracer. However, this conventional method presents inherent limitations such as exposure to ionizing radiation and potential diagnostic uncertainties, particularly in organs with heightened glucose uptake like the brain. This review underscores the transformative potential of traditional deuterium MR spectroscopy (MRS) when integrated with gradient techniques, culminating in an advanced metabolic imaging modality known as deuterium MRI (DMRI).
View Article and Find Full Text PDFEnhanced vessel wall magnetic resonance imaging in the follow-up of intracranial aneurysms treated with flow diversion.
Eur Radiol
February 2024
Department of Interventional Neuroradiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
Objective: This study aimed to compare the efficacy of enhanced 3D T1-weighted black-blood fast-spin-echo vessel wall magnetic resonance imaging (eVW-MRI) and time-of-flight magnetic resonance angiography (TOF MRA) for follow-up evaluation of aneurysms treated with flow diversion (FD).
Methods: Our study enrolled 77 patients harboring 84 aneurysms treated with FD. Follow-up was by MRI (eVW-MRI and TOF MRA) and digital subtraction angiography (DSA).
Construction of a Phantom for Image Quality Evaluation in PET/MRI System.
Ann Nucl Cardiol
August 2022
Department of Advanced Clinical Research Center, Fukushima Medical University, Fukushima, Japan.
: There is no phantom for image quality test in magnetic resonance imaging combined with positron emission tomography systems (PET/MRI systems). In MRI, radioactive water phantom containing 2-deoxy-2-[F-18] fluoro-D-glucose (F-FDG) cannot be used due to the dielectric effect. Even for phantoms filled with MR-available solutions, the source current of the RF coil is strongly disturbed as the diameter of the phantom increases.
View Article and Find Full Text PDFHigh energy ion beams from the plasma focus.
Appl Radiat Isot
July 2022
University Malaya, Kuala Lumpur, 50603, Malaysia.
Instability development in the pinch induces a locally enhanced electric field that accelerates the charged particles to extraordinary high energies. Rapid discharge is the singular state of the ion source confirming high plasma impedance. High energy ion beam is correlated to the electrical discharge parameters and consequently the ion acceleration potential is directly related to the mean ion energy.
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