BACKGROUND The aim of this study is to develop a methodology to standardize the analysis and reporting of the patterns of loco-regional failure after IMRT of head and neck cancer. MATERIAL AND METHODS Twenty-one patients with evidence of local and/or regional failure following IMRT for head-and-neck cancer were retrospectively reviewed under approved IRB protocol. Manually delineated recurren...

To date, the adoption of content-based Distributed Information Retrieval (DIR) solutions within the domain of Digital Libraries (DL) remains rather limited. We contend that the lack of open application frameworks is a major obstacle. Not only to the rapid development and reuse of state-of-the art DIR functionality, but also to the holistic evaluation of competing DIR approaches. In this paper, ...

This paper presents a thorough analysis of the capabilities of the pseudorelevance feedback (PRF) technique applied to Distributed Information Retrieval (DIR). This work emphasizes the effectiveness of PRF applied to the collection fusion problem. Usually, DIR Systems apply PRF in the same way of traditional Information Retrieval systems. For each collection, local results are improved through ...

Near-infrared fluorescence-enhanced diffuse optical tomography (fDOT) is used to localize tumors in mice using fluorescent nanoparticles as a blood pool contrast agent. The infrared dye DiR is loaded in the lipid core of nontargeted nanoparticles (DiR-lipidots) and injected systemically via the tail vein in mice bearing U87 tumors. Distribution and time-course of DiR-lipidots are followed using...

The American College of Radiology opened the computed tomography (CT) dose index registry (DIR) for general participation by all facilities in 2011. For each CT examination, data on volume CT dose index (CTDIvol), dose-length product (DLP), and, for body examinations, size-specific dose estimate (SSDE) were collected. However, effective dose is not estimated in DIR. The primary objective of thi...

The purpose of the present study was to investigate how stretch reflex (SR) responses in the ankle extensor (soleus: SOL) and flexor (tibialis anterior: TA) muscles would be modulated with temporal and/or spatial predictions of external perturbations and whether their effects are specific to the standing posture. SR responses in the SOL/TA were elicited by imposing quick ankle toes-up/toes-down...

PURPOSE Recent years have witnessed tremendous progress in image guide radiotherapy technology and a growing interest in the possibilities for adapting treatment planning and delivery over the course of treatment. One obstacle faced by the research community has been the lack of a comprehensive open-source software toolkit dedicated for adaptive radiotherapy (ART). To address this need, the aut...

Introduction The uptake of gadolinium contrast agent in coronary walls may indicate metabolically-active atherosclerosis (Maintz et al, 2006 ) and therefore be useful in the setting of coronary allograft vasculopathy (CAV). The interpretation of inversion recovery (IR) images can be hampered by signal from tissues with longer T1 times (particularly the myocardium) as tissue suppression is T1 de...

A direct-plating method on thiosulfate citrate bile salts sucrose agar (DIR-TCBS) in conjunction with enrichment in alkaline peptone water (APW) incubated for both 6 h and 24 h followed by subculture onto TCBS (APW6h-TCBS and APW24h-TCBS, respectively) was performed on 16,034 rectal swab samples for isolating Vibrio cholerae. A total of 2,932 (18.3%) rectal swab samples were positive for V. cho...

It is well established that Ca2+ plays a key role in promoting the physiological depolarization-induced release (DIR) of neurotransmitters from nerve terminals (Ca2+ hypothesis). Yet, evidence has accumulated for the Ca2+-voltage hypothesis, which states that not only is Ca2+ required, but membrane potential as such also plays a pivotal role in promoting DIR. An essential aspect of the Ca2+-vol...