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MRI of the Knee Meniscus
This article discusses the anatomy and function, variations, appearance and consequence of tears, and postoperative evaluation. We also address pitfalls and signs which can help improve diagnostic accuracy. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: Lukas M. Trunz, William B. Morrison Source Type: research

Magnetic Resonance of Normal Variants of the Pediatric Knee
This article reviews key patterns of normal bone and cartilage development. The most common and important variants of bone, cartilage, and soft tissue structures encountered on pediatric MR studies are discussed. Emphasis is placed on those variants that can be mistaken for pathology and those that may predispose to the development of symptoms. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: Hailey Allen, Kirkland W. Davis, Kara G. Gill Source Type: research

Intra-articular Neoplasms and Masslike Lesions of the Knee
This article focuses on those masses that present in a monoarticular fashion, emphasizing the lesions that most commonly affect the knee joint. MR imaging is the modality of choice for evaluation of knee masses, allowing specific diagnosis in most cases. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: Adam Rudd, Mini N. Pathria Source Type: research

MR Imaging of the Postoperative Meniscus
Meniscal tears are one of the most common knee injuries. Partial meniscectomy and meniscal repair are the most common treatment options in the setting of an unstable meniscal tear. Standard MR diagnostic criteria of a meniscal tear may be normal findings postoperatively. The diagnosis of a recurrent or residual meniscal tear after prior meniscal surgery is primarily based on the visualization of surfacing high meniscal T2-weighted signal. After meniscectomy of greater than 25%, or meniscal repair, MR arthrography may be of benefit in the accurate evaluation of a possible residual or recurrent meniscal tear. (Source: Magnet...
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: Sonja Fierstra, Lawrence M. White Source Type: research

MR Imaging of the Knee
MR imaging is an invaluable tool in medical practice with an abundance of utilization in the field of orthopedics. Within the orthopedic subset, knee imaging is the most common and the accurate interpretation of knee MR is a necessary and critical tool for both the general and musculoskeletal radiologist. As our understanding of this complex joint increases, ultimately so does the expectation of the radiologist. We hope to narrow the inevitable time-related knowledge gaps through the comprehensive discussions presented in this issue. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: M.K. Jesse Tags: Preface Source Type: research

MR Imaging of the Knee
It is with great anticipation and excitement that I share this issue with you on the joint that made it all happen in the musculoskeletal MR imaging world. Of course, I am talking about the knee. Everyone thinks they can read a knee MRI and know all they need to about this important weight-bearing joint. As the years have gone by, there has been so much to learn about the knee. Research comes out every month that gives us new perspectives on knee injury patterns and MR imaging findings that open our eyes to better recognition, diagnosis, and treatment of associated disorders. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - April 13, 2022 Category: Radiology Authors: Lynne S. Steinbach Tags: Foreword Source Type: research

MR Imaging of Nasopharyngeal Carcinoma
This article describes the MR imaging findings pertinent to staging and management and a new role of MR imaging in early cancer detection, in addition to a brief discussion of differential diagnoses. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Ann D. King Source Type: research

Artificial Intelligence and Deep Learning of Head and Neck Cancer
Artificial intelligence (AI) algorithms, particularly deep learning, have developed to the point that they can be applied in image recognition tasks. The use of AI in medical imaging can guide radiologists to more accurate image interpretation and diagnosis in radiology. The software will provide data that we cannot extract from the images. The rapid development in computational capabilities supports the wide applications of AI in a range of cancers. Among those are its widespread applications in head and neck cancer. (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, Reem Khaled, Eman Helmy, Ahmed Naglah, Amro AbdelKhalek, Ayman El-Baz Source Type: research

Magnetic Resonance Imaging of Perineural Spread of Head and Neck Cancer
Perineural tumor spread (PNTS) is one of the important methods of tumoral spread in head and neck cancers. It consists of a complex process that entails the production of certain chemicals or the production of certain cell receptors. Histologic type and primary tumor site play an important role in PNTS. Any nerve could be affected; however, the trigeminal and facial nerves are the most involved nerves. Magnetic resonance imaging and computed tomography detect the primary and secondary signs of PNTS. Functional imaging such as diffusion-weighted imaging and hybrid imaging act as problem-solving techniques. (Source: Magnetic...
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Tougan Taha Abdelaziz, Ahmed Abdel Khalek Abdel Razek Source Type: research

Posttreatment Magnetic Resonance Imaging Surveillance of Head and Neck Cancers
This article discusses recommended surveillance protocoling and reviews treatment approaches, common posttreatment changes, and pearls for identifying disease recurrence in a subsite-based approach. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Colin Zuchowski, Jordan Kemme, Ashley H. Aiken, Kristen L. Baugnon, Ahmed Abdel Khalek Abdel Razek, Xin Wu Source Type: research

Update on MR Imaging of Soft Tissue Tumors of Head and Neck
This article reviews soft tissue tumors of the head and neck following the 2020 revision of WHO Classification of Soft Tissue and Bone Tumours. Common soft tissue tumors in the head and neck and tumors are discussed, along with newly added entities to the classification system. Salient clinical and imaging features that may allow for improved diagnostic accuracy or to narrow the imaging differential diagnosis are covered. Advanced imaging techniques are discussed, with a focus on diffusion-weighted and dynamic contrast imaging and their potential to help characterize soft tissue tumors and aid in distinguishing malignant f...
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Justin D. Rodriguez, A. Morgan Selleck, Ahmed Abdel Khalek Abdel Razek, Benjamin Y. Huang Source Type: research

MR imaging of Oral Cavity and Oropharyngeal Cancer
MR imaging is the modality of choice in the evaluation of oral cavity and oropharyngeal cancer. Routine postcontrast MR imaging is important for the accurate localization and characterization of the locoregional extension of oral cavity and oropharyngeal cancers. The anatomy of the oral cavity and oropharynx is complex; accurate interpretation is vital for description of the extension of the masses. Understanding the new changes in the eighth edition of the American Joint Committee on Cancer staging system. MR imaging is the imaging modality of choice for detection of perineural spread. (Source: Magnetic Resonance Imaging ...
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Ahmed Abdel Khalek Abdel Razek, Manar Mansour, Elsharawy Kamal, Suresh K. Mukherji Source Type: research

MR imaging of Nasal and Paranasal Sinus Malignant Neoplasms
This article reviews the MRI protocols, staging, imaging features, and differential diagnosis related to malignant nasal and paranasal sinus neoplasms. (Source: Magnetic Resonance Imaging Clinics of North America)
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Daniel Thomas Ginat Source Type: research

Preimaging and Postimaging of Graft and Flap in Head and Neck Reconstruction
Head and neck reconstructive surgical techniques are complex; now the microvascular free tissue transfer is the most frequently used. The postreconstruction imaging interpretation is challenging due to the altered anatomy and flap variability. We aim to improve radiologists ’ knowledge with diverse methods of flap reconstruction for an accurate appreciation of their expected cross-sectional imaging appearance and early detection of tumor recurrence and other complication. (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, Gehad A. Saleh, Adel T. Denever, Suresh K. Mukherji Source Type: research

MR Imaging of Vascular Malformations and Tumors of Head and Neck
Soft tissue vascular anomalies show a wide heterogeneity of clinical manifestations and imaging features. MR imaging has an important role in the diagnosis and management of vascular lesions of the head and neck. MR angiography is mandatory in cases of arteriovenous and combined malformations to assess the high-flow nature/component of the lesions and plan therapy. Infantile hemangiomas can be differentiated from congenital hemangiomas by clinical course. Reactive vascular tumors have nonspecific features similar to infantile hemangiomas. Locally malignant and malignant vascular tumors have irregular borders, infiltration ...
Source: Magnetic Resonance Imaging Clinics of North America - November 19, 2021 Category: Radiology Authors: Ahmed Abdel Khalek Abdel Razek, Ali H. Elmokadem, Mosad Soliman, Suresh K. Mukherji Source Type: research