RESUMO
Intravascular (IV) contrast media are essential in many cases to enhance the diagnostic capabilities of medical imaging procedures. Much is known about the indications, contraindications, and adverse events associated with their use. This Directed Reading focuses on extravasation and IV contrast media-induced compartment syndrome, a less frequent, although serious, adverse event. In addition to describing the compartments within the forearm, wrist, and hand, the article explains how compartment syndrome develops, techniques used to treat the condition, and prevention strategies.
Assuntos
Síndromes Compartimentais/etiologia , Meios de Contraste/administração & dosagem , Extravasamento de Materiais Terapêuticos e Diagnósticos/complicações , Tecnologia Radiológica/métodos , Meios de Contraste/efeitos adversos , Extravasamento de Materiais Terapêuticos e Diagnósticos/prevenção & controle , Extravasamento de Materiais Terapêuticos e Diagnósticos/terapia , Humanos , Injeções Intravenosas/efeitos adversosRESUMO
Positron emission tomography-computed tomography (PET-CT) was the first fused or combined medical imaging technique. Although PET-CT has received widespread acclaim as a major imaging advancement, many questions have surfaced regarding its use. This article answers some of these questions and examines what PET-CT means to medicine and the medical imaging community.
Assuntos
Tomografia por Emissão de Pósitrons , HumanosRESUMO
Although acquired immunodeficiency syndrome (AIDS) is not directly fatal, individuals with the disease are susceptible to a host of life-threatening opportunistic infections and complications. This article focuses on the central nervous system (CNS) complications of HIV/AIDS and computed tomography's role in diagnosing these conditions. After completing the article, readers will know the signs and symptoms, causes or proposed causes and computed tomographic (CT) appearance of 4 important CNS complications of HIV/AIDS: Progressive multifocal leukoencephalopathy (PML). Toxoplasmosis. CNS lymphoma. AIDS dementia complex (ADC).
