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MR Imaging of Laryngeal and Hypopharyngeal Cancer
State-of-the-art MR imaging of the larynx and hypopharynx with high-resolution surface coils, parallel imaging techniques, and DWI has several advantages over CT for assessing submucosal tumor spread, in particular neoplastic involvement of the paraglottic space, laryngeal cartilages, and extralaryngeal soft tissues. Current diagnostic MR imaging criteria based on a combination of distinct imaging features on morphologic sequences combined with DWI allow improved discrimination between tumor, peritumoral inflammation, and fibrosis and, ultimately, an increased precision for submucosal tumor delineation, which is a key prer...
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Minerva Becker, Yann Monnier, Claudio de Vito Source Type: research

Tribute
While in the final stages of editing this issue, Dr Abdel Razek passed away suddenly. He had previously edited the May 2018 Neuroimaging Clinics, and we appreciate his knowledge and insight with this latest issue. We mourn his loss and offer our sincere condolences to his family, friends, and colleagues. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Ahmed M. Tawfik Source Type: research

MR Imaging of Head and Neck Cancer
MAGNETIC RESONANCE IMAGING CLINICS OF NORTH AMERICA (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Ahmed Abdel Khalek Abdel Razek Source Type: research

Copyright
ELSEVIER (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Source Type: research

Contributors
SURESH K. MUKHERJI, MD, MBA, FACR (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Source Type: research

Contents
Ahmed M. Tawfik (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Source Type: research

Forthcoming Issues
MR Imaging of the Knee (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Source Type: research

MR Imaging of Head and Neck Cancer
Writing a foreword for an issue of Magnetic Resonance Imaging Clinics of North America is usually a happy occasion, as I have a chance to personally congratulate and thank the editors and authors for their wonderful contributions. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Suresh K. Mukherji Tags: Foreword Source Type: research

CME Accreditation Page
(Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Source Type: research

Advanced Diffusion of the Pediatric Brain and Spine
This article discusses new diffusion-weighted imaging (DWI) sequences, diffusion tensor imaging (DTI), and fiber tractography (FT), as well as more advanced diffusion imaging in pediatric brain and spine. Underlying disorder and pathophysiology causing diffusion abnormalities are discussed. Multishot echo planar imaging (EPI) DWI and non-EPI DWI provide higher spatial resolution with less susceptibility artifact and distortion, which are replacing conventional single-shot EPI DWI. DTI and FT have established clinical significance in pediatric brain and spine. This article discusses advanced diffusion imaging, including dif...
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Toshio Moritani Source Type: research

Noncontrast Pediatric Brain Perfusion
This article discusses the technical aspects of ASL and IVIM with a focus on normal physiologic variations, technical parameters, and artifacts. Multiple pediatric clinical applications are presented, including tumors, stroke, vasculopathy, vascular malformations, epilepsy, migraine, trauma, and inflammation. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Danny J.J. Wang, Denis Le Bihan, Ram Krishnamurthy, Mark Smith, Mai-Lan Ho Source Type: research

Contrast Pediatric Brain Perfusion
Magnetic resonance (MR) perfusion is a robust imaging technique that assesses the passage of blood through the cerebral vascular network using a variety of techniques. The applications of MR perfusion have been expanded and is well suited to investigate cerebrovascular diseases and cerebral neoplastic processes in pediatric patients. Assessment of brain perfusion can augment the information obtained on conventional MR imaging and provides additional information on the biological and physiologic features of pediatric brain tumors. Similarly, MR perfusion can help guide the management of a variety of pediatric cerebrovascula...
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Mohannad Ibrahim, Talha Ul Ghazi, Jayapalli Rajiv Bapuraj, Ashok Srinivasan Source Type: research

Task-based and Resting State Functional MRI in Children
This article reviews special adaptations that are required for successful applications of task-based fMRI in children, especially in the motor and language systems. The more recently introduced method of resting state fMRI is reviewed and its relative advantages and disadvantages discussed. Common pitfalls and other systems and networks that may be of interest in special circumstances also are reviewed. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Mohit Maheshwari, Tejaswini Deshmukh, Eric C. Leuthardt, Joshua S. Shimony Source Type: research

Proton and Multinuclear Spectroscopy of the Pediatric Brain
Magnetic resonance spectroscopy (MRS) is a valuable adjunct to structural brain imaging. State-of-the-art MRS has benefited greatly from recent technical advancements. Neurometabolic alterations in pediatric brain diseases have implications for diagnosis, prognosis, and therapy. Herein, the authors discuss MRS technical considerations and applications in the setting of various pediatric disease processes including tumors, metabolic diseases, hypoxic/ischemic encephalopathy/stroke, epilepsy, demyelinating disease, and infection. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Matthew T. Whitehead, Stefan Bluml Source Type: research

Fetal Neuroimaging Updates
MR imaging is used in conjunction with ultrasound screening for fetal brain abnormalities because it offers better contrast, higher resolution, and has multiplanar capabilities that increase the accuracy and confidence of diagnosis. Fetal motion still severely limits the MR imaging sequences that can be acquired. We outline the current acquisition strategies for fetal brain MR imaging and discuss the near term advances that will improve its reliability. Prospective and retrospective motion correction aim to make the complement of MR neuroimaging modalities available for fetal diagnosis, improve the performance of existing ...
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Jeffrey N. Stout, M. Alejandra Bedoya, P. Ellen Grant, Judy A. Estroff Source Type: research