This issue of Radiologic Clinics of North America focuses on CT Angiography. Articles will include: CT Angiography - A Review and Technical Update; CT Angiography of Thoracic Aorta; CT Angiography of Abdominal Aorta; CT Angiography of the Liver, Spleen, and Pancreas; CT Angiography of the Bowel and Mesentery; CT Angiography of the Renal Circulation; CT Angiography of the Lower Extremities; CT Angiography of the Upper Extremities; Pediatric Considerations in CT Angiography; CT Angiography of the Neurovascular Circulation; Role of MRA in the Era of Modern CT Angiography; CT Angiography for Preoperative Thoracoabdominal Flap Planning; and more!

This issue provides an overview of anatomy for the practicing radiologist using MR.? Neuroanatomy is covered in separate articles on the brain, neck, spine, and skull base.? Body imaging is reviewed in articles on chest, abdomen, breast, and pelvis, and finally, the musculoskeletal system is thoroughly displayed by articles on shoulder, elbow, wrist and hand, knee, and ankle and foot.? Long bones of the upper and lower extremities are reviewed in separate articles as well.

In Inequality and Governance in an Uncertain World: Perspectives on Democratic & Autocratic Governments, the authors address structural and systemic inequalities in democratic and autocratic governments from a multidimensional perspective in nine world regions (Sub-Saharan Africa, the Middle East and North Africa, South Asia, East Asia, Eurasia, Eastern Europe, Western Europe, North America, and Latin America). Their focus is on issues of race, caste, class, gender, religion, culture, and ethnicity which has intensified during the COVID-19 pandemic. The fragility of democracies is only enhanced by the sobering reality of the climate crisis and the horrible nature of disinformation through social media. However, just as the world has been witnessing a shift toward autocracy, a commitment to democracy can be also possible through a renewal of the social contract, calling for more equitable social, economic, and health policies, obliterating the intersections of inequality, and trudging toward a more sustainable future for all.