This article presents a research method called Discourse Structure Analysis (DSA) and a software application called ChatLine that supports the analysis of chat transcripts according to DSA. The DSA method is based on manual referencing and automatic analysis of chat transcripts in order to create visualizations and measures of their message and interaction structures. The goal of DSA is to prov...

BACKGROUND Because the development of donor-specific anti-human leukocyte antigen (HLA) antibodies (DSA) after lung transplantation has been associated with acute and chronic rejection, we implemented a clinical protocol to screen all transplant recipients for DSA and preemptively treat those who developed DSA with rituximab and intravenous immune globulin (IVIG), or IVIG alone. METHODS We co...

We have been investigating registration methods for improving digital subtraction angiography (DSA) images to extract blood vessels by reducing artifacts due to body motion, such as rotation, contraction, and dilation. In this paper, we propose a new and simple DSA registration algorithm with local distortion vectors to reduce artifacts. According to the results, the proposed method works well ...

Recent progress in digital subtraction angiography (DSA) devices makes it possible to perform rotational angiography with high resolution and high sensitivity. We tried intravenous (IV) 3D DSA in patients who had undergone MR angiography (MRA) suggestive of unruptured intracranial aneurysms. IV 3D DSA can be used as an alternative method for imaging unruptured intracranial aneurysms suggested o...

The standard method to detect pretransplant antibodies has been the complement dependent cytotoxicity (CDC) test of donor leukocytes. Solid phase assays to detect HLA antibodies in pretransplant serum reveal a greater number of sensitized patients, but their clinical impact is less certain. Here we have developed a method of detecting C4d fixing HLA antibodies on Luminex beads. Pretransplant se...

This paper presents a summary of some of the results on dynamic spectrum allocation (DSA) that have been obtained as part of the DRiVE project. During this project two main aspects of DSA were investigated. Temporal DSA attempts to adapt the spectrum allocations of networks to time-varying loads, and spatial DSA adjusts spectrum allocations according to the load demands of different regions. Th...