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The esophagus is involved by a wide range of pathologic processes that can be detected, defined, and staged with computed tomography (CT). These processes include esophageal carcinoma; benign esophageal tumors; inflammatory and infectious diseases; miscellaneous conditions such as Barrett esophagus, achalasia, and varices; and trauma and perforation. CT is(More)
Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document defines Remote Authentication Dial In User Service (RADIUS) support for the Extensible Authentication Protocol (EAP), an authentication framework which supports(More)
Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.(More)
Three-dimensional (3D) medical images of computed tomographic (CT) data sets can be generated with a variety of computer algorithms. The three most commonly used techniques are shaded surface display, maximum intensity projection, and, more recently, 3D volume rendering. Implementation of 3D volume rendering involves volume data management, which relates to(More)
The three most common techniques for three-dimensional reconstruction are surface rendering, maximum-intensity projection (MIP), and volume rendering. Surface-rendering algorithms model objects as collections of geometric primitives that are displayed with surface shading. The MIP algorithm renders an image by selecting the voxel with the maximum intensity(More)
OBJECTIVE The purpose of this study was to develop an interactive computer-based tool for teaching hepatic segment anatomy and to evaluate its usefulness for radiology education. CONCLUSION An interactive computer-based teaching tool has been developed that effectively teaches the segmental anatomy of the liver to radiology residents and fellows who have(More)
Recent advances in computer technology have led to the creation and development of computer-assisted instruction (CAI) programs, which are rapidly assuming a prominent role in both medical and nonmedical education. The development process includes defining objectives, identifying the target audience, assembling the design team, selecting compatible hardware(More)
Layer Two Tunneling Protocol "L2TP" Management Information Base Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and(More)