Publications by authors named "Dat Thanh Nguyen"

Background: Deep learning (DL) models for accurate renal tumor characterization may benefit from multi-center datasets for improved generalizability; however, data-sharing constraints necessitate privacy-preserving solutions like federated learning (FL).

Purpose: To assess the performance and reliability of FL for renal tumor segmentation and classification in multi-institutional MRI datasets.

Study Type: Retrospective multi-center study.

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In this paper, we provide an in-depth assessment on the Bjøntegaard Delta. We construct a large data set of video compression performance comparisons using a diverse set of metrics including PSNR, VMAF, bitrate, and processing energies. These metrics are evaluated for visual data types such as classic perspective video, 360° video, point clouds, and screen content.

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Motivation: Molecular quantitative trait locus (QTL) mapping has proven to be a powerful approach for prioritizing genetic regulatory variants and causal genes identified by genome-wide association studies. Recently, this success has been extended to circular RNA (circRNA), a potential group of RNAs that can serve as markers for the diagnosis, prognosis, or therapeutic targets of various human diseases. However, a well-developed computational pipeline for circRNA QTL (circQTL) discovery is still lacking.

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Our brain employs mechanisms to adapt to changing visual conditions. In addition to natural changes in our physiology and those in the environment, our brain is also capable of adapting to "unnatural" changes, such as inverted visual-inputs generated by inverting prisms. In this study, we examined the brain's capability to adapt to hyperspaces.

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Regardless of the overwhelming use of next-generation sequencing technologies, microarray-based genotyping combined with the imputation of untyped variants remains a cost-effective means to interrogate genetic variations across the human genome. This technology is widely used in genome-wide association studies (GWAS) at bio-bank scales, and more recently, in polygenic score (PGS) analysis to predict and stratify disease risk. Over the last decade, human genotyping arrays have undergone a tremendous growth in both number and content making a comprehensive evaluation of their performances became more important.

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Objectives: In this study, we developed a deep learning pipeline that detects large vessel occlusion (LVO) and predicts functional outcome based on computed tomography angiography (CTA) images to improve the management of the LVO patients.

Methods: A series identifier picked out 8650 LVO-protocoled studies from 2015 to 2019 at Rhode Island Hospital with an identified thin axial series that served as the data pool. Data were annotated into 2 classes: 1021 LVOs and 7629 normal.

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Despite the rapid development of sequencing technology, single-nucleotide polymorphism (SNP) arrays are still the most cost-effective genotyping solutions for large-scale genomic research and applications. Recent years have witnessed the rapid development of numerous genotyping platforms of different sizes and designs, but population-specific platforms are still lacking, especially for those in developing countries. SNP arrays designed for these countries should be cost-effective (small size), yet incorporate key information needed to associate genotypes with traits.

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Background: Circular RNA (circRNA) is an emerging class of RNA molecules attracting researchers due to its potential for serving as markers for diagnosis, prognosis, or therapeutic targets of cancer, cardiovascular, and autoimmune diseases. Current methods for detection of circRNA from RNA sequencing (RNA-seq) focus mostly on improving mapping quality of reads supporting the back-splicing junction (BSJ) of a circRNA to eliminate false positives (FPs). We show that mapping information alone often cannot predict if a BSJ-supporting read is derived from a true circRNA or not, thus increasing the rate of FP circRNAs.

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Article Synopsis
  • Targeted therapy using tyrosine kinase inhibitors (TKI) can improve survival rates for many patients with non-small cell lung cancer (NSCLC), but resistance to these treatments often develops.
  • A study analyzed the genetic and epigenetic changes in 122 Vietnamese NSCLC patients experiencing resistance to TKI therapy, finding that 41.8% had specific resistance mutations, particularly in the EGFR gene.
  • The research highlighted that the level of genome-wide hypomethylation was linked to how long patients responded to TKI, suggesting that liquid biopsies can help understand TKI resistance mechanisms and inform future treatment strategies.
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Article Synopsis
  • - Alzheimer's disease (AD) is increasing globally, with early-onset AD (EOAD) affecting those under 65, often linked to genetic mutations.
  • - This study conducted genetic analysis on 51 Vietnamese EOAD patients, identifying four significant mutations in neurodegenerative genes and revealing a potential mutation unique to the Vietnamese population.
  • - The research emphasizes the importance of genetic testing for EOAD and advocates for more genetic data collection within the Vietnamese community to better understand and address the disease.
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