Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (127)
  • Open Access

    ARTICLE

    Comparing functional outcomes of glansectomy with or without glans reconstruction

    Mihály Murányi1,*, András Domoszlai1, Attila Csaba Nagy2, Tibor Flaskó1

    Canadian Journal of Urology, Vol.32, No.2, pp. 119-127, 2025, DOI:10.32604/cju.2025.063821 - 30 April 2025

    Abstract Introduction: We aimed to compare the oncological and functional outcomes of glansectomy and split-thickness skin graft reconstruction (GR) with those of glansectomy alone (GA) and penile amputation (PA). Materials and Methods: This retrospective study included patients with penile carcinoma or penile intraepithelial neoplasia diagnosed between 2017 and 2022. Surgical outcomes, complications, and oncological outcomes were assessed through a chart review, and functional outcomes were assessed using a questionnaire administered to patients who underwent GR (group A), GA (group B), or PA (group C). Results: Six, eight, and seven patients were enrolled in groups A, B, and… More >

  • Open Access

    ARTICLE

    Frequency-Quantized Variational Autoencoder Based on 2D-FFT for Enhanced Image Reconstruction and Generation

    Jianxin Feng1,2,*, Xiaoyao Liu1,2

    CMC-Computers, Materials & Continua, Vol.83, No.2, pp. 2087-2107, 2025, DOI:10.32604/cmc.2025.060252 - 16 April 2025

    Abstract As a form of discrete representation learning, Vector Quantized Variational Autoencoders (VQ-VAE) have increasingly been applied to generative and multimodal tasks due to their ease of embedding and representative capacity. However, existing VQ-VAEs often perform quantization in the spatial domain, ignoring global structural information and potentially suffering from codebook collapse and information coupling issues. This paper proposes a frequency quantized variational autoencoder (FQ-VAE) to address these issues. The proposed method transforms image features into linear combinations in the frequency domain using a 2D fast Fourier transform (2D-FFT) and performs adaptive quantization on these frequency components… More >

  • Open Access

    ARTICLE

    Bayesian Network Reconstruction and Iterative Divergence Problem Solving Method Based on Norm Minimization

    Kuo Li1,*, Aimin Wang1, Limin Wang1, Yuetan Zhao1, Xinyu Zhu2

    CMES-Computer Modeling in Engineering & Sciences, Vol.143, No.1, pp. 617-637, 2025, DOI:10.32604/cmes.2025.061242 - 11 April 2025

    Abstract A Bayesian network reconstruction method based on norm minimization is proposed to address the sparsity and iterative divergence issues in network reconstruction caused by noise and missing values. This method achieves precise adjustment of the network structure by constructing a preliminary random network model and introducing small-world network characteristics and combines L1 norm minimization regularization techniques to control model complexity and optimize the inference process of variable dependencies. In the experiment of game network reconstruction, when the success rate of the L1 norm minimization model’s existence connection reconstruction reaches 100%, the minimum data required is… More >

  • Open Access

    ARTICLE

    Image Super-Resolution Reconstruction Based on the DSSTU-Net Model

    Bonan Yu1,2, Taiping Mo1,3, Qi Ma1, Qiumei Li1, Peng Sun1,3,*

    CMC-Computers, Materials & Continua, Vol.83, No.1, pp. 1057-1078, 2025, DOI:10.32604/cmc.2025.059946 - 26 March 2025

    Abstract Super-resolution (SR) reconstruction addresses the challenge of enhancing image resolution, which is critical in domains such as medical imaging, remote sensing, and computational photography. High-quality image reconstruction is essential for enhancing visual details and improving the accuracy of subsequent tasks. Traditional methods, including interpolation techniques and basic CNNs, often fail to recover fine textures and detailed structures, particularly in complex or high-frequency regions. In this paper, we present Deep Supervised Swin Transformer U-Net (DSSTU-Net), a novel architecture designed to improve image SR by integrating Residual Swin Transformer Blocks (RSTB) and Deep Supervision (DS) mechanisms into… More >

  • Open Access

    ARTICLE

    Post-operative outcomes in rectourethral fistula repair using gracilis interposition flap

    Gabrielle Yankelevich1,*, Jessica Swaim1, Ian Coate1, Margaret Stroud1, William Stallings1, Virgilio George2, M. Lance Tavana3, Harry Clarke1

    Canadian Journal of Urology, Vol.32, No.1, pp. 37-42, 2025, DOI:10.32604/cju.2025.064684 - 20 March 2025

    Abstract Objectives: To assess outcomes of rectourethral fistula repair utilizing a gracilis flap in a largely radiated cohort. Patients and Methods: We performed a retrospective review of all gracilis interposition flap reconstruction surgeries performed for RUF at a university hospital in South Carolina between January 2010 and June 2023. All repairs utilized a multidisciplinary approach with urology, colorectal, and plastic surgery teams. Post-operatively, patients were maximally drained with foley catheter and suprapubic tube (SPT). Initial voiding cystourethrogram (VCUG) was performed at 4 weeks post-repair. If there was a persistent leak, catheter drainage was maintained for 4 additional… More >

  • Open Access

    ARTICLE

    Predictors of Early Right Ventricular Dysfunction after Cone Reconstruction for Ebstein’s Anomaly: A Retrospective Cohort Study

    Jing Ling1, Naijimuding Abudurexiti1, Jiaxiong Wu1, Runzhang Liang1, Zirui Peng1, Yuting Huang2, Haiyun Yuan1,3,4,*, Shusheng Wen1,3,4,*

    Congenital Heart Disease, Vol.20, No.1, pp. 13-25, 2025, DOI:10.32604/chd.2025.063437 - 18 March 2025

    Abstract Background: Although Cone reconstruction has been shown to improve biventricular function over time, postoperative right ventricular dysfunction (RVD) is frequently observed, signiffcantly affecting reoperation and long-term prognosis. This study aims to identify the predictors for postoperative RVD. Methods: This retrospective cohort study included 51 patients with Ebstein’s anomaly who underwent the Cone reconstruction. RVD was deffned as right ventricular fractional area change (RV-FAC) less than 35% and tricuspid annular plane systolic excursion (TAPSE) less than 17 mm through pre-discharge echocardiography. Univariate and multivariate analyses were used to analyze the pre-operative predictors. Results: The median age at surgery… More >

  • Open Access

    ARTICLE

    From Imperfection to Perfection: Advanced 3D Facial Reconstruction Using MICA Models and Self-Supervision Learning

    Thinh D. Le, Duong Q. Nguyen, Phuong D. Nguyen, H. Nguyen-Xuan*

    CMES-Computer Modeling in Engineering & Sciences, Vol.142, No.2, pp. 1459-1479, 2025, DOI:10.32604/cmes.2024.056753 - 27 January 2025

    Abstract Research on reconstructing imperfect faces is a challenging task. In this study, we explore a data-driven approach using a pre-trained MICA (MetrIC fAce) model combined with 3D printing to address this challenge. We propose a training strategy that utilizes the pre-trained MICA model and self-supervised learning techniques to improve accuracy and reduce the time needed for 3D facial structure reconstruction. Our results demonstrate high accuracy, evaluated by the geometric loss function and various statistical measures. To showcase the effectiveness of the approach, we used 3D printing to create a model that covers facial wounds. The More >

  • Open Access

    ARTICLE

    3D Reconstruction for Early Detection of Liver Cancer

    Rana Mohamed1,2,*, Mostafa Elgendy1, Mohamed Taha1

    Computer Systems Science and Engineering, Vol.49, pp. 213-238, 2025, DOI:10.32604/csse.2024.059491 - 10 January 2025

    Abstract Globally, liver cancer ranks as the sixth most frequent malignancy cancer. The importance of early detection is undeniable, as liver cancer is the fifth most common disease in men and the ninth most common cancer in women. Recent advances in imaging, biomarker discovery, and genetic profiling have greatly enhanced the ability to diagnose liver cancer. Early identification is vital since liver cancer is often asymptomatic, making diagnosis difficult. Imaging techniques such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT), and ultrasonography can be used to identify liver cancer once a sample of liver tissue is… More >

  • Open Access

    ARTICLE

    A Generative Model-Based Network Framework for Ecological Data Reconstruction

    Shuqiao Liu1, Zhao Zhang2,*, Hongyan Zhou1, Xuebo Chen1

    CMC-Computers, Materials & Continua, Vol.82, No.1, pp. 929-948, 2025, DOI:10.32604/cmc.2024.057319 - 03 January 2025

    Abstract This study examines the effectiveness of artificial intelligence techniques in generating high-quality environmental data for species introductory site selection systems. Combining Strengths, Weaknesses, Opportunities, Threats (SWOT) analysis data with Variation Autoencoder (VAE) and Generative Adversarial Network (GAN) the network framework model (SAE-GAN), is proposed for environmental data reconstruction. The model combines two popular generative models, GAN and VAE, to generate features conditional on categorical data embedding after SWOT Analysis. The model is capable of generating features that resemble real feature distributions and adding sample factors to more accurately track individual sample data. Reconstructed data is… More >

  • Open Access

    RESIDENT’S CORNER

    Urethral carcinoma after skin substitution urethral reconstruction

    Zhan Wu, Mystie Chen, Ryan Mori

    Canadian Journal of Urology, Vol.31, No.2, pp. 11858-11860, 2024

    Abstract Urethral cancer after urethral reconstruction is an under-recognized, uncommon disease associated with significant morbidity and mortality. The survival rates of patients with carcinoma of the bulbar urethra are as low as 20%-30%. Stricture recurrence and unrecognized malignant changes present prior to reconstruction are major risk factors for urethral cancer. Skin substitution urethroplasty is subjected to higher rates of recurrence, which lends to the potential for carcinogenesis. We present a case of a 59-year-old male who underwent multi-stage skin substitution urethroplasty who developed urethral carcinoma 20 years later. More >

Displaying 1-10 on page 1 of 127. Per Page