Radiologic technology
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Positron emission tomography (PET) scans can now be acquired in unison with magnetic resonance (MR) scans as a single resource. This hybrid PET-MR solution combines the anatomic detail and functional data of MR scans with the biologic or physiological information offered by PET scans. This article describes aspects of implementing a PET-MR imaging program, including various technical and operational challenges, scheduling and workflow solutions, room construction and equipment, and finally clinical applications of this novel modality. The Directed Reading also discusses the possible future role of PET-MR in the clinical setting.
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Following every well-publicized act of incomprehensible violence, the news media rush to interview neighbors, family members, and experts in an attempt to discover what could have led an individual to commit such a barbarous act. Certain stock answers are reiterated: video games, bullying, violent films, mental illness, the availability of guns, and a society that is increasingly both anonymous and callous. Might imaging be one of the more valuable keys to unlocking the mysteries of violent, aggressive people? This article explores these questions and their complex answers in the context of violent individuals.
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Crohn disease (often seen in the literature as "Crohn's disease"), an autoimmune disease with debilitating gastrointestinal and extragastrointestinal manifestations, is on the rise in the United States and Europe. This article discusses the disease process, clinical presentation, diagnostic tools, and treatment options for Crohn disease. Statistics regarding disease prevalence and epidemiology also are reported.