Publications by authors named "Doyle P"

Purpose: Given the high prevalence of vertebral fractures post-radiotherapy in patients with metastatic spine disease, accurate and rapid muscle segmentation could support efforts to quantify muscular changes due to disease or treatment and enable biomechanical modeling for assessments of vertebral loading to improve personalized evaluation of vertebral fracture risk. This study presents a deep-learning approach for segmenting the complete volume of the trunk muscles from clinical CT images trained using sparsely annotated data.

Materials And Methods: we extracted 2,009 axial CT images at the midpoint of each vertebral level (T4 to L4) from clinical CT of 148 cancer patients.

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Background/objectives: The human papillomavirus (HPV) is a prevalent sexually transmitted infection that is a known cause of morbidities such as genital warts and cancers of the cervix, anus, and oropharynx. Non-cervical HPV-related cancers have been a developing problem in North America, increasing in incidence by up to 225% in some instances over a span of two decades.

Methods: This study investigated levels of and of HPV, oropharyngeal cancer (OPC), and the HPV vaccine using a self-administered web-based survey designed specifically for this research.

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Background: Adequate patient awareness and understanding of cancer clinical trials is essential for trial recruitment, informed decision-making, and protocol adherence. While Large Language Models (LLMs) have shown promise for patient education, their role in enhancing patient awareness of clinical trials remains unexplored. This study explored the performance and risks of LLMs in generating trial-specific educational content for potential participants.

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Pathologic vertebral fractures (PVF) are common and serious complications in patients with metastatic lesions affecting the spine. Accurate assessment of cancer patients' PVF risk is an unmet clinical need. Load-to-strength ratios (LSRs) evaluated in vivo by estimating vertebral loading from biomechanical modeling and strength from computed tomography imaging (CT) have been associated with osteoporotic vertebral fractures in older adults.

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The impact of animal-based food production on climate change drives the development of plant-based alternatives. We demonstrate the use of colloidal thermogelation on a real nanoemulsion system to create structured gels that could be of interest for thermo-mechanical processing of next-generation plant-based food applications. We use a commercial pea protein isolate (PPI) without further purification to stabilize a 20 vol% peanut oil-in-water nanoemulsion at pH = 7 by high-pressure homogenization (HPH) and demonstrate the temperature induced gelation behavior of the nanoemulsion as a function of the HPH processing parameters.

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Multifaceted interactions between marine bacteria and particulate matter exert a major control over the biogeochemical cycles in the oceans. At the microbial scale, free-living bacteria benefit from encountering and harnessing the plumes around nutrient-releasing particles, like phyto-plankton and organic aggregates. However, our understanding of the bacterial potential to reshape these eutrophic microhabitats remains poor, in part because of the traditional focus on fast-moving particles that generate ephemeral plumes with lifetime shorter than the uptake timescale.

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Article Synopsis
  • The paper highlights the complex management of various types of hospital waste, detailing pathways such as general, hazardous, pharmaceutical, radioactive, and electronic waste.
  • It emphasizes the importance of understanding these waste streams for economic savings, compliance with regulations, and minimizing environmental impacts, with specific focus on radiology's unique contributions.
  • The authors advocate for improved waste optimization practices, encouraging future research to enhance operational efficiency and promote better health outcomes as healthcare demands rise.
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Background: A dementia diagnosis can lead to a decline in cognitive, social, and physical health, but people with dementia can live meaningful lives and participate actively in society with psychosocial support. This single-arm, non-randomised feasibility study explored the feasibility and acceptability of a Comprehensive REsilience-building psychoSocial intervenTion (CREST) for people with dementia, their caregivers, General Practitioners (GPs), and the public.

Methods: Nine people with dementia and their primary caregivers living in the community (n = 9 dyads) completed the CREST intervention which had three components (cognitive stimulation therapy [CST], physical exercise, and dementia education).

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Background: This ORATOR sub-study evaluated swallowing physiology in patients treated with transoral robotic surgery (TORS) versus radiotherapy (RT) for early-stage oropharynx cancer.

Methods: Swallowing physiology was evaluated using videofluoroscopy and outcomes were compared across treatment arms and correlated with MDADI scores.

Results: Of the 68 patients in the ORATOR trial, 21 participated in this sub-study (30.

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Automatic analysis of pathologic vertebrae from computed tomography (CT) scans could significantly improve the diagnostic management of patients with metastatic spine disease. We provide the first publicly available annotated imaging dataset of cancerous CT spines to help develop artificial intelligence frameworks for automatic vertebrae segmentation and classification. This collection contains a dataset of 55 CT scans collected on patients with various types of primary cancers at two different institutions.

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Objectives: Although total laryngectomy (TL) is a well-established surgical procedure with clear functional or oncologic indications, the peri- and postoperative care for those undergoing TL is variable, particularly regarding postlaryngectomy tracheostoma management. This study examined TL outcomes from a single institution with the immediate perioperative use of soft silicone laryngectomy tubes. More specifically, we explored potential complications associated with immediate perioperative use of a flexible laryngectomy tube (LaryTube and StomaSoft) and the use of heat and moisture exchange (HME) devices in association with peri- and postoperative care.

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Article Synopsis
  • Scientists are trying to understand how plants are controlled by special gene regulators called microRNAs, which are important because they can show specific patterns in different parts of the plant.
  • Current methods for studying microRNAs mainly focus on animals, but researchers have developed a new way to look at these regulators in plants using a special technique that captures and measures them in tiny wells filled with DNA probes.
  • This new method was tested on Arabidopsis thaliana (a type of small plant) and showed that it can reveal important information about plant growth and development, helping scientists learn more about how plants work.
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Kinetoplast DNA is a complex nanoscale network, naturally assembled from thousands of interconnected DNA circles within the mitochondrion of certain parasites. Despite the relevance of this molecule to parasitology and the recent discovery of tuneable mechanics, its topology remains highly contested. Here we present a multiscale analysis into the structure of kDNA using a combination of high-resolution atomic force microscopy and custom-designed image analysis protocols.

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Background: A novel Complex REsilience-building psychoSocial intervenTion (CREST) targeted at people with dementia, their informal carers, general practitioners and the wider community with the aim of increasing resilience and strengthening the personal attributes or external assets of people with dementia living at home, in the community, was developed. It included three components: cognitive stimulation therapy (CST), physical exercise and dementia education. A non-randomised feasibility study was conducted of the CREST intervention, the aim of which was to inform the design of a future randomised controlled trial.

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Accurate and reliable registration of longitudinal spine images is essential for assessment of disease progression and surgical outcome. Implementing a fully automatic and robust registration is crucial for clinical use, however, it is challenging due to substantial change in shape and appearance due to lesions. In this paper we present a novel method to automatically align longitudinal spine CTs and accurately assess lesion progression.

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2D materials such as graphene, graphene oxide, transition metal dichalcogenides, and 2D polymers have unique properties which allow them to be used in many applications from electronics to energy to biotechnology. Producing and applying these materials often involves solution processing. Previous computational studies have observed 2D sheets in shear and extensional flows, but have focused on steady flows, even though the dynamics of these materials might exhibit hysteresis.

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Article Synopsis
  • Plasma p-tau217 is identified as a promising blood-based marker for detecting Alzheimer Disease (AD) pathology, particularly in memory clinic patients undergoing lumbar punctures.
  • A study involving 108 participants found that plasma p-tau217 levels were significantly higher in those with detected amyloid (Aβ) pathology compared to those without, indicating its strong potential for diagnosis.
  • The analysis showed that plasma p-tau217 had excellent performance metrics for Aβ detection (AUC: 0.91), outperforming other biomarkers and suggesting it could be a reliable tool in Alzheimer's diagnostics.
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MicroRNAs (miRNAs) are small RNAs that are often dysregulated in many diseases, including cancers. They are highly tissue-specific and stable, thus, making them particularly useful as biomarkers. As the spatial transcriptomics field advances, protocols that enable highly sensitive and spatially resolved detection become necessary to maximize the information gained from samples.

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Background: Lung cancer is a significant cause of cancer-related mortality globally, with early detection through screening critical to improving patient outcomes. However, recruiting high-risk individuals, particularly in deprived populations, for screening remains a considerable challenge. This study aims to co-design a targeted recruitment strategy for lung cancer screening, tailored to the specific needs and experiences of high-risk individuals, in collaboration with a Patient and Public Involvement (PPI) panel and expert stakeholders in Ireland.

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Nanosizing drug crystals has emerged as a successful approach to enabling oral bioavailability, as increasing drug crystal surface area improves dissolution kinetics and effective solubility. Recently, bottom-up methods have been developed to directly assemble nanosized crystals by leveraging polymer and surfactant excipients during crystallization to control crystal size, morphology, and structure. However, while significant research has investigated how polymers and other single additives inhibit or promote crystallization in pharmaceutical systems, there is little work studying the mechanistic interactions of multiple excipients on drug crystal structure and the extent of crystallinity, which can influence formulation performance.

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Persistent organic pollutants (POPs), including xenoestrogens and polyfluoroalkyl substances (PFAS), demand urgent global intervention. Fenton oxidation, catalyzed by iron ions, offers a cost-effective means to degrade POPs. However, numerous challenges like acid dependency, catalyst loss, and toxic waste generation hinder practical application.

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Article Synopsis
  • A study investigates how 2D materials like graphene behave when in solution, emphasizing that there's still a lack of fundamental understanding in this area.
  • Researchers enhance previous models by incorporating short-ranged Lennard-Jones interactions to see how 2D sheets react in shear flow, revealing a diverse range of conformations based on various factors.
  • The findings classify the sheets into different conformational states (flat, tumbling, etc.) and demonstrate that shear-thinning and shear-thickening behaviors can occur even without thermal fluctuations.
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Determining whether the RNA isoforms from medically relevant genes have distinct functions could facilitate direct targeting of RNA isoforms for disease treatment. Here, as a step toward this goal for neurological diseases, we sequenced 12 postmortem, aged human frontal cortices (6 Alzheimer disease cases and 6 controls; 50% female) using one Oxford Nanopore PromethION flow cell per sample. We identified 1,917 medically relevant genes expressing multiple isoforms in the frontal cortex where 1,018 had multiple isoforms with different protein-coding sequences.

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Objective: Survey the current literature on artificial intelligence (AI) applications for detecting and classifying vocal pathology using voice recordings, and identify challenges and opportunities for advancing the field forward.

Data Sources: PubMed, EMBASE, CINAHL, and Scopus databases.

Review Methods: A comprehensive literature search was performed following the Preferred Reporting Items for Systematic Reviews and Meta-analyses Extension for Scoping Reviews guidelines.

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Introduction: This study pursued two objectives: (1) to determine the potential association between listener ( = 51) judgments of 20 male tracheoesophageal speaker samples for two auditory-perceptual dimensions of voice, overall severity (OS) and listener comfort (LC); and (2) to assess the temporal and spectral acoustic correlates for these auditory-perceptual dimensions.

Methodology: Three separate correlation analyses were performed to evaluate the association between OS and LC. First, scores of OS and LC from all listeners were pooled together, and then the correlation between OS and LC was computed.

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