Results 81 to 90 of about 14,201 (265)

Multifactor Risk Stratification for Post‐Transplant Alcohol Relapse Using Abstinence, Psychosocial, and Socioeconomic Factors

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Alcohol relapse after liver transplantation is difficult to predict using abstinence duration alone. We developed a multifactor model integrating abstinence duration, psychosocial risk (SIPAT), and socioeconomic context (AUC 0.70). This approach may support individualized risk assessment and tailored follow‐up intensity; external validation is needed ...
Ayato Obana   +9 more
wiley   +1 more source

Evaluation of Perkin Elmer Amorphous Silicon Electronic Portal Imaging Device for Small Photon Field Dosimetry [PDF]

open access: yesJournal of Biomedical Physics and Engineering
Background: Electronic portal imaging devices (EPIDs) are applied to measure the dose and verify patients’ position.Objective: The present study aims to evaluate the performance of EPID for measuring dosimetric parameters in small photon fields.Material ...
Mohammad Haghparast   +4 more
doaj   +1 more source

Long-Term Follow-Up of Computer-Assisted Microvascular Mandibular Reconstruction: A Retrospective Study [PDF]

open access: yes
Background: Virtual surgical planning has become a well-established practice in head and neck surgery. In oncological surgery, it permits the achievement of safe margins resections and ensures functional reconstructions and optimal esthetic outcomes ...
Mattia Berrone   +10 more
core   +1 more source

Essential Updates 2024–2025: Surgical Strategy for Esophageal Cancer Toward a New Paradigm in the Era of Immunotherapy and Personalization

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
This review summarizes key advances from 2024 to 2025 that are reshaping esophageal cancer surgery toward a strategy‐oriented, personalized paradigm through the integration of immunotherapy, population aging, and intelligent technologies. Adjuvant nivolumab after neoadjuvant chemoradiotherapy remains the only perioperative approach with durable benefit,
Shuichiro Oya   +2 more
wiley   +1 more source

Efficacy and Safety of a Simple Auxiliary Liver Suspension Device in Complex Laparoscopic Hepatectomy: A Multicenter Randomized Clinical Trial

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Purpose To evaluate the efficacy and safety of a novel auxiliary liver suspension device in complex laparoscopic hepatectomy. Methods A total of 253 patients with hepatocellular carcinoma (HCC) undergoing complex laparoscopic hepatectomy at the Third Affiliated Hospital of Naval Medical University, Sichuan Provincial People's Hospital, and ...
Xiao‐Ying Zhu   +9 more
wiley   +1 more source

Organ at Risk Segmentation in Head and Neck CT Images Using a Two-Stage Segmentation Framework Based on 3D U-Net

open access: yesIEEE Access, 2019
Accurate segmentation of organs at risk (OARs) plays a critical role in the treatment planning of image-guided radiotherapy of head and neck cancer. This segmentation task is challenging for both humans and automated algorithms because of the relatively ...
Yueyue Wang   +3 more
doaj   +1 more source

Preoperative Computed Tomography Colonography‐Angiography for Vascular Mapping to Guide and Standardize D3 Lymphadenectomy in Right‐Sided and Transverse Colon Cancer

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
This study utilized high‐resolution CT colonography‐angiography to systematically classify vascular branching patterns in 591 patients. We defined four reproducible anatomical patterns each for right hemicolectomy and transverse colectomy, demonstrating that an independent‐origin middle colic artery consistently predicts shorter dissection distances ...
Takeharu Kato   +8 more
wiley   +1 more source

Diagnostic Accuracy of Size‐Based Preoperative CT Assessment for Predicting Lymph Node Metastasis in Colon Cancer: A Systematic Review and Meta‐Analysis

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Preoperative CT based on lymph node size shows moderate accuracy for detecting nodal metastasis in colon cancer. In this meta‐analysis of 29 studies (5,634 patients), pooled sensitivity and specificity were 0.69 and 0.66. Size‐based CT alone has limited value for clinical decision‐making.
Yuji Takayama   +4 more
wiley   +1 more source

Advanced Intraoperative Radiotherapy

open access: yes, 2022
Intraoperative radiotherapy is a kind of brachytherapy where the remains of a surgically not completely removed tumour are irradiated at the open situ of the patient.
Walter, S., Straßmann, G.
core  

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