Magnetic resonance imaging clinics of North America
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Magn Reson Imaging Clin N Am · Aug 2020
ReviewAbbreviated Magnetic Resonance Imaging Protocols in the Abdomen and Pelvis.
In recent decades, the clinical applications for which magnetic resonance (MR) imaging is routinely used have expanded exponentially. MR imaging protocols have become increasingly complex, adversely affecting image acquisition and interpretation times. ⋯ There has been growing interest in the cultivation of abbreviated MR imaging protocols that evaluate specific clinical questions while reducing cost and increasing access. The overarching goal is to streamline the MR imaging workflow and reduce the time needed to obtain and report examinations by eliminating duplicative or unnecessary sequences without sacrificing diagnostic accuracy.
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Magn Reson Imaging Clin N Am · Feb 2018
ReviewPET/MR Imaging in Head and Neck Cancer: Current Applications and Future Directions.
Clinical PET/MR imaging is being implemented at institutions worldwide as part of the standard-of-care imaging for select oncology patients. This article focuses on oncologic applications of PET/MR imaging in cancers of the head and neck. Although current published literature is relatively sparse, the potential benefits of a hybrid modality of PET/MR imaging are discussed along with several possible areas of research. With the increasing number of PET/MR imaging scanners in clinical use and ongoing research, the role of PET/MR imaging in the management of head and neck cancer is likely to become more evident in the near future.
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Magn Reson Imaging Clin N Am · Feb 2018
ReviewSpectral Computed Tomography: Technique and Applications for Head and Neck Cancer.
Spectral computed tomography (CT) or dual-energy CT (DECT) is an advanced form of CT with increasing applications in head and neck radiology. This article provides an overview of the DECT technique and reviews current applications for the evaluation of neck pathology, focusing on oncologic applications. Included are an overview of the basic underlying principles and approaches for DECT scan acquisition and material characterization; a discussion of various DECT reconstructions and a brief overview of practical issues pertaining to DECT implementation, including those related to workflow impact of DECT; and a discussion of various applications of DECT for the evaluation of the neck, especially in oncology.
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Pelvic floor dysfunction is a term used to describe a broad set of conditions including pelvic organ prolapse, urinary or fecal incontinence, defecatory dysfunction, and chronic pelvic pain that frequently affects multiple compartments of the pelvic floor. Imaging is important, because physical examination may not be adequate as the only means of evaluating pelvic floor disorders. This article reviews pertinent pelvic floor anatomy as well as the technique for performing, interpreting, and reporting abnormalities seen on MR defecography examinations in the anterior, middle, and posterior compartments.
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Head and neck cancers are a diverse group of cancers with high morbidity and mortality within an area of complex anatomy. High-quality anatomic and functional imaging is essential for preoperative, chemotherapeutic, and radiotherapy planning. Early studies show that hybrid PET-MR imaging offers great potential for improving the imaging of head and neck cancers. Furthermore, advanced MR imaging techniques may also be incorporated to further enhance the diagnostic value of the combined modality.