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Musculoskeletal MR Imaging Applications at Ultra-High (7T) Field Strength
Regulatory approval of ultrahigh field (UHF) MR imaging scanners for clinical use has opened new opportunities for musculoskeletal imaging applications. UHF MR imaging has unique advantages in terms of signal-to-noise ratio, contrast-to-noise ratio, spectral resolution, and multinuclear applications, thus providing unique information not available at lower field strengths. But UHF also comes with a set of technical challenges that are yet to be resolved and may not be suitable for all imaging applications. This review focuses on the latest research in musculoskeletal MR imaging applications at UHF including morphologic ima...
Source: Magnetic Resonance Imaging Clinics of North America - October 31, 2020 Category: Radiology Authors: Rajiv G. Menon, Gregory Chang, Ravinder R. Regatte Source Type: research

Dynamic Glucose-Enhanced MR Imaging
Conventional medical imaging techniques use contrast agents that are chemically labeled, for example, iodine in the case of computed tomography, radioisotopes in the case of PET, or gadolinium in the case of MR imaging to create or enhance signal contrast and to visualize tissue compartments and features. Dynamic glucose-enhanced MR imaging represents a novel technique that uses natural, unlabeled d-glucose as a nontoxic biodegradable contrast agent in chemical exchange –sensitive MR imaging approaches. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - October 31, 2020 Category: Radiology Authors: Daniel Paech, Alexander Radbruch Source Type: research

Ultrahigh Field 7 T MR Imaging: Bridging the Gap Between Microscopic and Systems Level Macroscopic Imaging
Fourteen years ago, Neuroimaging Clinics published an issue entitled “3.0 T versus 1.5 T Imaging.” This current issue represents a sequel that could be entitled “7.0 T versus 3.0 T Imaging.” In year 2035, we may see an issue entitled “12.0 T versus 7.0 T Imaging” or perhaps more likely “AI-Powered Hybrid 12.0 T MR Imaging–CT-PET Scanner and Theranosti c Focused US-Radio-Laser” all in one. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - October 29, 2020 Category: Radiology Authors: Meng Law Tags: Preface Source Type: research

MR Imaging Safety Considerations of Gadolinium-Based Contrast Agents
Gadolinium (Gd)-based contrast agents (GBCAs) have revolutionized of MR imaging, enabling physicians to obtain life-saving medical information that often cannot be obtained with unenhanced MR imaging or other imaging modalities. Since regulatory approval in 1988, more than 450 million intravenous GBCA doses have been administered worldwide, with an extremely favorable pharmacologic safety profile. Recent evidence has demonstrated, however, that a small fraction of Gd is retained in human tissues. No direct correlation between Gd retention and clinical effects has been confirmed; however, a subset of patients have attribute...
Source: Magnetic Resonance Imaging Clinics of North America - October 9, 2020 Category: Radiology Authors: Jennifer S. McDonald, Robert J. McDonald Source Type: research

Elements of Effective Patient Screening to Improve Safety in MRI
Conducting magnetic resonance imaging (MRI) safety screening is not a new idea and has developed as a proved method in efforts to ensure patient safety and prevent accidents in the magnetic resonance (MR) environment. A growing number of surgical procedures with implanted medical devices have complicated MR screening and added to the workload of Level 2 personnel. Level 2 staff members are trained to understand and implement screening procedures and should be consulted by all individuals requiring access to the MR environment. All the steps have potential gaps, but as a whole offer efficient and effective tools to alleviat...
Source: Magnetic Resonance Imaging Clinics of North America - October 9, 2020 Category: Radiology Authors: Vera Kimbrell Source Type: research