This issue of MRI Clinics of North America focuses on Update on Imaging Contrast Agents, and is edited by Drs. Carlos Zamora, Mauricio Castillo, Richard Semelka. Articles will include: Historical Perspective of Imaging Contrast Agents; Current Radiographic Iodinated Contrast Agents; Contrast-enhanced Sonography; Myelography: From Lipid-based to Gadolinium-based Contrast Agents; Acute Allergic Reactions with Gadolinium-based Contrast Agents: Diagnosis and Treatment; Deposition and Chronic Toxicity of Gadolinium-based Contrast Agents; Managing Allergic Reactions to Contrast Agents; Safety of Contrast Material Use in Children; Molecular Imaging and Contrast Agents; Contrast Agents for MR Imaging: Gadolinium, Manganese, SPIO, Superparamagnetic Iron Platinum, and Oral Agents; Contrast-induced Nephropathy: Pathophysiology, Manifestations, Prevention, and Management; and more!

In this issue of MRI Clinics, guest editors Drs. Max Wintermark and Ananth Madhuranthakam bring their considerable expertise to the topic of MR Perfusion. Top experts in the field discuss all three MR perfusion techniques (DSC, DCE, and ASL), as well as provide separate articles on evaluation of gliomas, breast cancer, musculoskeletal, prostate, and heart. - Contains 13 relevant, practice-oriented topics including perfusion imaging for brain tumors; dynamic susceptibility contrast (DSC) MR perfusion; arterial spin labelling (ASL) MR perfusion; MR perfusion imaging of prostate; dynamic contrast-enhanced (DCE) MR perfusion; MR perfusion imaging for breast cancer; and more. - Provides in-depth clinical reviews on MR perfusion, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

MRI contrast agents improve visibility of internal body structures. This issue offers a complete, practically focused review of the use of a variety of contrast agents for MR Imaging. A contrast agent not only must be safe, but also efficacious and cost-effective, and the articles in this issue address all three of these concerns and the uses of contrast agents for a variety of applications.

This issue of MRI Clinics of North America focuses on MR Safety and is edited by Dr. Robert E. Watson. Articles will include: Key elements of clinical MRI safety; Standardized approaches to MR safety assessment of patients with implanted devices; Performing MRI safely in patients with implanted electronic devices: cardiac electronic implanted devices and neurostimulators; Implanted devices: SAR considerations for common diagnostic examinations; Testing of commonly implanted devices for MR conditional labelling; MR safety in the 7T environment; Physics of MR safety; MRI safety considerations of gadolinium based contrast agents: gadolinium retention and nephrogenic systemic fibrosis; MRI safety: Siting and zoning considerations; Elements of effective patient screening to improve safety in MRI, including use of ferromagnetic detection systems; MRI safety in the interventional environment; MRI Safety: Pregnancy and Lactation; MR safety: Computer MRI simulations for testing of electronic devices; and more!

In this issue of Radiologic Clinics, guest editors Drs. Benjamin M. Yeh and Frank H. Miller bring their considerable expertise to the topic of Hepatobiliary Imaging. Top experts in the field offer comprehensive reviews of every major aspect of hepatobiliary imaging: biliary cancer, trauma, vascular disorders, and benign liver disease. This issue also includes articles on imaging modalities (MR, CT, ultrasound), contrast agents, and "Pearls and Pitfalls. - Contains 13 practice-oriented topics including abbreviated MR liver protocols; update on MR contrast agents for liver imaging: what to use and when; biliary imaging interpretation pearls and pitfalls: CT and MRI; update on biliary cancer imaging; atypical liver malignancies and diagnostic pitfalls; and more. - Provides in-depth clinical reviews on hepatobiliary imaging, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

This issue of MRI Clinics of North America focuses on MR Imaging of the Genitourinary System, and is edited by Dr. Ersan Altun. Articles will include: Future Perspectives in Multiparametric Prostate MR Imaging; MRI-Guided Focal Therapies of Prostate Cancer; Infectious and Inflammatory Diseases of the Urinary Tract: Role of MRI; MRI of the Perirenal Space and Retroperitoneum; Tumors of Renal Collecting Systems, Renal Pelvis and Ureters: Role of MRI and MR Urography versus CT Urography; Radiomics of Kidney Cancer; MRI of the Bladder Tumors – What Is the Incremental value of PET-MRI?; MRI of the Penis and Urethra; MRI of the Testicular and Extratesticular Tumors: When Do We Need?; MRI Evaluation of Kidneys in Patients with Renal Impairment: Non-Contrast Techniques versus Contrast-Enhanced Techniques; Classification and Diagnosis of Cystic Renal Tumors: Role of MRI versus Contrast–Enhanced Ultrasound; and more!

This issue, edited by Drs. Peter Liu and Richard Abramson, will comprehensively review imaging of the hepatobiliary system. Articles will include: Hepatic MRI Techniques, Optimization, and Artifacts, MR Contrast Agents for Liver Imaging, Focal Liver Lesion Characterization in Noncirrhotic Patients: An MR Approach, MRI in Cirrhosis and Hepatocellular Carcinoma, Understanding LI-RADS: A Primer for Practical Use, MRI of the Liver after Locoregional and Systemic Therapy, Diffusion Weighted Imaging of the Liver: Techniques and Applications, Hepatic Iron and Fat Quantification Techniques, Perfusion Imaging in Liver MRI, MR Elastography, Treatment Planning Before Hepatobiliary Surgery: Clinical and Imaging Considerations, MRI/MRCP of Benign and Malignant Biliary Conditions, and more!

This issue of MRI Clinics of North America focuses on State-of-the-Art Imaging of Head and Neck Tumors, and is edited by Dr. Girish M. Fatterpekar. Articles will include: Spectral CT: Technique and Applications for Head and Neck Cancer; State-of-the-Art Perfusion Imaging for Head and Neck Cancer; PET-CT in Head and Neck Cancer: Where Do We Currently Stand; Neck Imaging Reporting and Data System (NI-RADS) for Head and Neck Cancer; CT vs MR in Head and Neck Cancer: When to Use What and Image Optimization Strategies; Practical Tips for MR Imaging of Perineural Tumor Spread; High-resolution Extracranial Nerve MR Imaging; Diffusion-weighted Imaging in Head and Neck Cancer: Technique, Limitations, and Applications; Dynamic Contrast-enhanced MR Imaging in Head and Neck Cancer; Update in Parathyroid Imaging; PET-MR Imaging in Head and Neck Cancer: Current Applications and Future Directions, and more!

This issue of Neuroimaging Clinics of North America focuses on Emergent Neuroimaging: A Patient Focused Approach, and is edited by Dr. Diego B. Nunez. Articles will include: The adult patient with acute neurologic deficit: an update on imaging trends; The patient with thunderclap headache; Imaging considerations in the patient with intracerebral hemorrhage; Emergent neuroimaging in the oncologic and immunosuppressed patient; Emergent neuroimaging during pregnancy and puerperium; Imaging the unconscious “found down patient in the ED; Neurological emergencies in the pediatric patient including accidental and non-accidental trauma; Head and neck injuries: special considerations in the elderly patient; Current challenges in the use of CT and MRI in suspected cervical spine trauma; Radiation considerations in emergent neuroimaging; Blunt cranio-cervical trauma: Does the patient have a cerebral vascular injury?; New and emerging patient-centered CT imaging and image-guided treatment paradigms for maxillofacial trauma; Acute neurological syndromes beyond stroke: The role of emergent MRI; and more!