Emission Computed Tomography (ECT), General Principles Two-dimensional imaging, even with multiple views, does not provide accurate three-dimensional information concerning radionuclide distribution. Because two-dimensional imaging more or less integrates the information…
Vasculitis Alejandro A. Gru INTRODUCTION Vasculitis refers to a heterogeneous group of disorders characterized by vessel inflammation.1 The clinical manifestations range from locoregional ischemic and purpuric injuries to systemic disease….
Operational Characteristics and Quality Control (QC) of a Scintillation Camera A number of parameters of an imaging device play a major role in the delineation of a radioactive distribution. Of…
Wells Syndrome (Eosinophilic Cellulitis) Melinda Jen Adam I. Rubin INTRODUCTION First described in 1971 by George Wells, Wells syndrome (or eosinophilic cellulitis) is an uncommon, recurrent inflammatory dermatosis of unknown…
Sweet and Histiocytoid Sweet Syndrome Viktoryia Kazlouskaya Jacqueline M. Junkins-Hopkins DEFINITION Sweet syndrome (SS), also known as acute neutrophilic dermatosis, is a predominantly neutrophilic disorder, frequently associated with systemic involvement….
Computer Interfacing and Image Processing Computers continue to impress with their ability to store ever larger amounts of information in a small space, to process information very quickly, including mathematical…
Eosinophilic Dermatosis of Hematologic Malignancy Joya Sahu Jason B. Lee Eosinophilic dermatosis may be encountered in the setting of various hematologic malignancies and hematologic disorders, including blood dyscrasias and myelodysplastic…
In Vivo Radiation Detection: Basic Problems, Probes, and Scintillation Camera In vivo detection of radioactivity using external detectors constitutes a major concern of nuclear medicine. This involves a variety of…
In Vitro Radiation Detection In many nuclear medicine procedures, such as the Schilling test, blood volume determinations, protein and fat absorption studies, ferrokinetics, and various radioimmunoassay, it is necessary to…
Blastic Plasmacytoid Dendritic Cell Neoplasm M. Yadira Hurley Stephen P. Olsen DEFINITION Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a unique myeloid precursor neoplasm that primarily manifests first with cutaneous…
