Yuichiro Hayashi 研究室

主宰者：Yuichiro Hayashi

横浜市立大学・Yokohama City University Medical Center

AI 要約（直近 5 年の研究成果）

本研究室は、医療画像解析と手術支援システムの開発を中心に展開しています。特にCT画像やMRI、内視鏡動画などの医療画像から、臓器や腫瘍などの関心領域を自動認識する「セグメンテーション」技術の高度化に取り組んでいます。限られた学習用データで高精度な認識を実現するため、半教師あり学習や自己教師あり学習といった機械学習の手法を活用しています。また、不確実性の推定や複数ネットワーク間での知識共有を通じて、モデルの堅牢性を向上させる研究も進めています。さらに同研究室では、開発した画像認識技術の臨床応用に注力しており、肝臓切除手術や脳腫瘍摘出術などで外科医を支援するナビゲーションシステムの構築を行っています。術中の光学画像とMRI・CT画像を統合したマルチモーダル画像プラットフォームや、3D印刷肝臓モデルを用いた手術計画・シミュレーション、リアルタイム手術器具認識システムなどを開発し、実際の医療現場での有用性を検証しています。これらの取り組みを通じて、最先端の画像解析技術を臨床医療に橋渡しする研究を展開しています。

※ AI（Claude）が、公開されている論文要旨から研究の問い・手法・主要な発見を事実情報として抽出・再構成して自動生成しています。誤りを含む可能性があるため、正確性は研究室公式情報でご確認ください。

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研究成果（58 件）

[2025] Enhancing YOLO for laparoscopic tool detection: novel data augmentation and structural modifications addressing mis-detection of bifurcated targets
DOI: https://doi.org/10.1007/s11548-025-03352-x
[2025] Diffusion-driven distillation and contrastive learning for class-incremental semantic segmentation of laparoscopic images
DOI: https://doi.org/10.1007/s11548-025-03405-1
[2025] Thermochemoradiation therapy using retrograde superselective intra-arterial infusion for patients with cervical lymph node metastases from advanced oral squamous cell carcinoma: A retrospective study of 66 cases
DOI: https://doi.org/10.1016/j.ajoms.2025.06.003
[2025] Semantic segmentation dataset authoring with simplified labels
DOI: https://doi.org/10.1007/s11548-024-03314-9
[2025] Visualizing ambiguity in semantic segmentation of ICSI support systems for polar-body detection
DOI: https://doi.org/10.1080/18824889.2025.2548044
[2025] WPDM: enhancing subarachnoid hemorrhage CT detection with Worley-Perlin noise diffusion on imbalanced data
DOI: https://doi.org/10.1117/12.3047558
[2025] Bidirectional teaching between lightweight multi-view networks for intestine segmentation from CT volume
DOI: https://doi.org/10.1117/1.jmi.12.2.024003
[2025] Development and Validation of a Multimodal Optico-Radiological Image System for Neurosurgical Guidance: A Proof of Concept
DOI: https://doi.org/10.7759/cureus.81310
[2025] Multi-dimensional consistency learning between 2D Swin U-Net and 3D U-Net for intestine segmentation from CT volume
DOI: https://doi.org/10.1007/s11548-024-03252-6
[2025] Uncertainty-aware semi-supervised learning for enhanced multi-organ segmentation in CT volumes
DOI: https://doi.org/10.1117/12.3047155

続きを表示（残り 48 件）

[2025] Double-mix pseudo-label framework: enhancing semi-supervised segmentation on category-imbalanced CT volumes
DOI: https://doi.org/10.1007/s11548-024-03281-1
[2024] A Case of Pulmonary Carcinosarcoma Predominantly Composed of Malignant Peripheral Nerve Sheath Tumor Components Observed by Sequential Computed Tomography
DOI: https://doi.org/10.2482/haigan.64.901
[2024] Analysis of nutritional status of 119 patients treated with retrograde superselective chemoradiotherapy for tongue cancer
DOI: https://doi.org/10.5794/jjoms.70.327
[2024] Developing an Effective Off-the-job Training Model and an Automated Evaluation System for Thoracoscopic Esophageal Atresia Surgery
DOI: https://doi.org/10.1016/j.jpedsurg.2024.06.023
[2024] Federated 3D multi-organ segmentation with partially labeled and unlabeled data
DOI: https://doi.org/10.1007/s11548-024-03139-6
[2024] Disseminated Histoplasmosis Presenting with Panniculitis and Macrophage Activation Syndrome in a Patient Undergoing Immunosuppressive Therapy for Mixed Connective Tissue Disease (MCTD)
DOI: https://doi.org/10.2169/internalmedicine.3597-24
[2024] A clinical assessment of three-dimensional-printed liver model navigation for thrice or more repeated hepatectomy based on a conversation analysis
DOI: https://doi.org/10.1007/s00595-024-02835-9
[2024] Performance improvement for medical image classification model by using gradient-based analytical feature selection
DOI: https://doi.org/10.1117/12.3006620
[2024] Revisiting instrument segmentation: Learning from decentralized surgical sequences with various imperfect annotations
DOI: https://doi.org/10.1049/htl2.12068
[2024] Continued pretraining for enhanced multi-organ segmentation from CT images
DOI: https://doi.org/10.1117/12.3006630
[2024] Anatomical attention can help to segment the dilated pancreatic duct in abdominal CT
DOI: https://doi.org/10.1007/s11548-023-03049-z
[2024] Development of real-time navigation system for laparoscopic hepatectomy using magnetic micro sensor
DOI: https://doi.org/10.1080/13645706.2023.2301594
[2024] YOLOv7‐RepFPN: Improving real‐time performance of laparoscopic tool detection on embedded systems
DOI: https://doi.org/10.1049/htl2.12072
[2024] Towards better laparoscopic video segmentation: A class‐wise contrastive learning approach with multi‐scale feature extraction
DOI: https://doi.org/10.1049/htl2.12069
[2024] Erythrodermic mycosis fungoides associated with Hodgkin lymphoma : A case report
DOI: https://doi.org/10.5227/skincancer.39.299
[2023] A semantic segmentation method for laparoscopic images using semantically similar groups
DOI: https://doi.org/10.1117/12.2654636
[2023] Endoscope Automation Framework with Hierarchical Control and Interactive Perception for Multi-Tool Tracking in Minimally Invasive Surgery
DOI: https://doi.org/10.3390/s23249865
[2023] Transcriptome of Oral Cancer Cells Adapted to Suspension Culture Is Potentially Related to Cancer Progressive Phenotypes
DOI: https://doi.org/10.21873/anticanres.16578
[2023] Limitation of PET/CT for screening of synchronous upper gastrointestinal cancer in oral cancer patients
DOI: https://doi.org/10.1016/j.ajoms.2023.07.015
[2023] Efficacy of concurrent chemoradiotherapy with retrograde super selective intra-arterial infusion combined with cetuximab for synchronous multifocal oral squamous cell carcinomas
DOI: https://doi.org/10.1186/s13014-023-02282-9
[2023] Development of panorama vision ring for thoracoscopy
DOI: https://doi.org/10.1007/s11548-023-02859-5
[2023] Oesophagus Achalasia Diagnosis from Esophagoscopy Based on a Serial Multi-scale Network
DOI: https://doi.org/10.1080/21681163.2022.2159534
[2023] Surgical Navigation System
DOI: https://doi.org/10.5759/jscas.25.47
[2022] Database-driven patient-specific registration error compensation method for image-guided laparoscopic surgery
DOI: https://doi.org/10.1007/s11548-022-02804-y
[2022] Anatomy aware-based 2.5D bronchoscope tracking for image-guided bronchoscopic navigation
DOI: https://doi.org/10.1080/21681163.2022.2152728
[2022] Class-wise confidence-aware active learning for laparoscopic images segmentation
DOI: https://doi.org/10.1007/s11548-022-02773-2
[2022] A skeleton context-aware 3D fully convolutional network for abdominal artery segmentation
DOI: https://doi.org/10.1007/s11548-022-02767-0
[2022] Blood Vessel Segmentation from Low-Contrast and Wide-Field Optical Microscopic Images of Cranial Window by Attention-Gate-Based Network
DOI: https://doi.org/10.1109/cvprw56347.2022.00203
[2022] Treatment outcomes of proton beam therapy combined with retrograde intra-arterial infusion chemotherapy for locally advanced oral cancer in the elderly
DOI: https://doi.org/10.1016/j.ijom.2022.01.014
[2022] Spatially variant biases considered self-supervised depth estimation based on laparoscopic videos
DOI: https://doi.org/10.1080/21681163.2021.2015723
[2022] Bilobectomy for synchronous multiple lung cancer after COVID-19 pneumonia: a case report
DOI: https://doi.org/10.21037/acr-21-65
[2022] Surgical Strategy for Squamous Cell Carcinoma of the External Auditory Canal: Management of Locally Advanced Cases with Skull Base Involvement
DOI: https://doi.org/10.1055/a-1733-2585
[2022] Cytomorphology and Gene Expression Signatures of Anchorage-independent Aggregations of Oral Cancer Cells
DOI: https://doi.org/10.21873/cgp.20365
[2022] Boundary-aware feature and prediction refinement for polyp segmentation
DOI: https://doi.org/10.1080/21681163.2022.2155579
[2021] Extremely imbalanced subarachnoid hemorrhage detection based on DenseNet-LSTM network with class-balanced loss and transfer learning
DOI: https://doi.org/10.1117/12.2582088
[2021] Depth-based branching level estimation for bronchoscopic navigation
DOI: https://doi.org/10.1007/s11548-021-02460-8
[2021] Transcriptomic Profiling Predicts Multiple Pathways and Molecules Associated With the Metastatic Phenotype of Oral Cancer Cells
DOI: https://doi.org/10.21873/cgp.20238
[2021] Extraction of lung and lesion regions from COVID-19 CT volumes using 3D fully convolutional networks
DOI: https://doi.org/10.1117/12.2581818
[2021] A cascaded fully convolutional network framework for dilated pancreatic duct segmentation
DOI: https://doi.org/10.1007/s11548-021-02530-x
[2021] Aorta-aware GAN for non-contrast to artery contrasted CT translation and its application to abdominal aortic aneurysm detection
DOI: https://doi.org/10.1007/s11548-021-02492-0
[2021] Unpaired medical image translation between portal-venous phase and non-contrast CT volumes for multi-organ segmentation
DOI: https://doi.org/10.1117/12.2590639
[2021] Study on automated anatomical labeling of abdominal arteries using Spectral-based Convolutional Graph Neural Networks
[2021] Automatic Segmentation of bleeding from Laparoscopic Video using Cascade CNN
[2021] Intestinal region reconstruction of ileus cases from 3D CT images based on graphical representation and its visualization
DOI: https://doi.org/10.1117/12.2581261
[2021] Lung infection and normal region segmentation from CT volumes of COVID-19 cases
DOI: https://doi.org/10.1117/12.2582066
[2021] Unsupervised segmentation of COVID-19 infected lung clinical CT volumes using image inpainting and representation learning
DOI: https://doi.org/10.1117/12.2580641
[2021] Context encoder guided self-supervised siamese depth estimation based on stereo laparoscopic images
DOI: https://doi.org/10.1117/12.2582348
[2021] Bronchial orifice segmentation on bronchoscopic video frames based on generative adversarial depth estimation
DOI: https://doi.org/10.1117/12.2582341

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AI 要約（直近 5 年の研究成果）

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研究成果（58 件）

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