Publications by authors named "Xiao-Guang Li"

Objective: To evaluate the efficacy of MWA for patients aged ≥ 75 years with stage I NSCLC, and to explore the impacts of age and comorbidities on the long-term outcomes.

Methods: Patients with stage I NSCLC underwent MWA between November 2016 and December 2020 were retrospectively enrolled. Patients were stratified into two cohorts: ≥ 75 years and < 75 years.

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Objectives: To compare the analgesic efficacy and safety of three anesthetic techniques during microwave ablation (MWA) for subpleural stage I non-small cell lung cancer (NSCLC).

Materials And Methods: This prospective, single-center clinical trial enrolled patients with subpleural stage I NSCLC between January 2024 and December 2024. Patients were assigned to one of three anesthesia groups: intercostal nerve block (INB), pleural infiltration anesthesia (PIA), or local anesthesia (LA).

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Background: Patient-derived xenografts and organoids were the most common patient-derived tumor models in vitro that were utilized in personalized drug screening, and the establishment rate and duration required to be improved. Patient-derived tumor-like cell clusters (PTCs) could be established within ten days for drug screening, with high establishment rate and accuracy in predicting clinical outcomes. This study aims to explore the accuracy of PTCs based on specimens obtained from percutaneous transthoracic needle biopsy (PTNB) in lung malignancy (LM) patients, and to investigate the predictors for the success of PTC culture.

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Background: Cryoablation simulation based on Finite Element Method (FEM) can facilitate preoperative planning for liver tumors. However, it has limited application in clinical practice due to its time-consuming process and improvable accuracy. We aimed to propose a FEM-based simulation model for rapid and accurate prediction of the iceball size during the hepatic cryofreezing cycle.

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Background: Minimally invasive thermal therapies show great prospect in non-small cell lung cancer (NSCLC) treatment. However, changes in immune cell populations following microwave ablation (MWA) in NSCLC microenvironment are not fully revealed.

Objective: The present study was conducted to identify changes in immune cell populations and analyse dysregulated genes in immune cells after MWA in NSCLC microenvironment.

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Objectives: As one of the most widely cultivated agricultural crops in the world, maize (Zea mays L.) yield is often affected by water stress. In this study, we designed eight different irrigation levels in a field environment, covering a wide range of gradients, and conducted a comprehensive transcriptomic analysis of maize leaves under these eight treatments.

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Background: Accurately determining the content of halogens (F, Cl, Br, and I) in geological samples, especially ultra-trace amounts of I, remains a challenging task owing to their inherent volatility. Traditional pyrohydrolysis techniques face the challenges of incomplete sample decomposition and released halogen recovery. Moreover, the pyrohydrolysis mechanism of geological samples has never been investigated.

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Purpose: This retrospective study aimed to evaluate the feasibility and safety of co-ablation (Co-A) for lung malignancies in patients with usual interstitial pneumonia (UIP).

Materials And Methods: We retrospectively reviewed the clinical records of 1,537 consecutive patients treated for malignant lung tumors. UIP was assessed using standard-dose computed tomography (CT).

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Purpose: A large-scale comparative analysis was performed with the aim of comparing local tumor destruction (LTD), sublobar resection (SR), and pulmonary lobectomy (PL) for cancer-specific survival (CSS) and overall survival (OS) in stage IA non-small cell lung cancer (NSCLC).

Methods: In the Surveillance, Epidemiology, and End Results (SEER) database (2000-2021), we included patients with pathologically confirmed stage IA non-small cell lung cancer who were treated with LTD, SR, or PL. Comparison between groups was performed separately after 1:1 proportional propensity score matching (PSM) with a caliper value of 0.

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Purpose: As microwave ablation continues to be used in patients with inoperable stage I non-small cell lung cancer (NSCLC), it is particularly important to monitor efficacy. Whether plasma ctDNA detection can predict its efficacy should be illustrated.

Methods: We recruited 43 patients with inoperative stage I NSCLC, all of whom underwent biopsy-synchronous microwave ablation (MWA).

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The Beijing-Tianjin-Hebei (Jing-Jin-Ji) Region is home to the most acute economic, resource, and environmental conflicts in the Bohai Sea region, and the rivers entering the sea carry abundant total nitrogen (TN) input into the Bohai Bay, which is the main land-based input causing eutrophication of the bay. The Haihe River Basin in the Jing-Jin-Ji Region was divided into 112 (2018-2019) and 187 (2020-2022) control units, and the spatial and temporal variations in TN concentration in the surface water of the Haihe River Basin in the Jing-Jin-Ji Region were systematically analyzed from 2018 to 2022 by combining the Euclidean distance analysis method and the K-means clustering analysis method. The results showed that the annual average concentration of TN in the region showed a trend of decreasing (2018-2020) and then increasing (2021-2022), in which the concentration of TN increased significantly from June 2021 to June 2022.

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Background And Objective: In patients diagnosed with bladder cancer (BC), muscle-invasive bladder cancer (MIBC) accounts for 25%, including tumors invading the intrinsic muscle layer (T2), surrounding tissues of the bladder (T3), or adjacent pelvic organs/structures (T4). Cryoablation promises to be a novel interventional oncology technique, which effectively induces cellular destruction through freezing and thawing cycles. In addition to the direct tumor-killing effect, it also has a tumor-immune effect.

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Background: The purpose of this study was to clinically evaluate the safety and effectiveness of the electromagnetic navigation (EMN) system designed for computed tomography (CT)-guided synchronous percutaneous lung biopsy and microwave ablation (MWA) of pulmonary nodules.

Methods: This prospective, single-center, single-arm clinical cohort study was conducted in Beijing Hospital from March 2023 to May 2023. Patients who underwent CT-guided synchronous percutaneous lung biopsy and MWA via the EMN system were prospectively enrolled in our study.

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Purpose: To investigate the outcomes of first-line image-guided microwave ablation (MWA) plus tyrosine kinase inhibitors (TKIs) in untreated epidermal growth factor receptor (EGFR)-mutant advanced lung adenocarcinoma (LUAD) and to compare with TKIs alone.

Materials And Methods: This retrospective cohort study included patients between December 2015 and December 2021 and was divided into 2 groups (Group A: first-line MWA+TKIs; Group B: TKIs alone). Progression-free survival (PFS) was the primary end point, whereas overall survival (OS) was the secondary end point and were compared via the Kaplan-Meier methods.

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Background: Computer-assisted planning methods have increasingly contributed to preoperative ablation planning; however, these methods cannot automatically obtain the final optimal solution within a short time and are rarely validated in practice, greatly limiting their clinical applicability.

Purpose: We aimed to propose a full-automatic multi-stage ablation and needle trajectory planning method for CT-guided percutaneous liver ablation to attain the final optimal plans under multiple clinical constraints rapidly.

Methods: Our proposed method integrates the ablation zone planning fulfilling complete tumor coverage and critical structure avoidance while reaching a trade-off between ablation number and healthy tissue damage, and needle trajectory planning under multiple clinical constraints.

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Article Synopsis
  • - The study investigates how microwave ablation affects plasma proteomic changes in rabbit lungs with VX2 tumors, aiming to identify related molecular pathways.
  • - Blood samples were collected at five different time points before and after treatment, and plasma proteins were analyzed using advanced techniques, revealing different activated pathways at each time point.
  • - Key findings indicate that various pathways associated with tumor development, immune response, and metabolism were influenced by the microwave ablation treatment, suggesting potential impacts on cancer progression and chemotherapy sensitivity.
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Background: Intestinal lipoma is considered the most common benign tumor that causes intussusception. This retrospective case-control study aimed to present the clinical and multidetector computed tomography (MDCT) features between intestinal lipomas with and without intussusception and examine risk factors that predict intussusception caused by intestinal lipomas.

Methods: We retrospectively analyzed 281 adult patients diagnosed with intestinal lipoma by radiologists using whole-abdominal MDCT between January 2015 and August 2022.

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Background: CT-image segmentation for liver and hepatic vessels can facilitate liver surgical planning. However, time-consuming process and inter-observer variations of manual segmentation have limited wider application in clinical practice.

Purpose: Our study aimed to propose an automated deep learning (DL) segmentation algorithm for liver and hepatic vessels on portal venous phase CT images.

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Background: The combination therapy of immunotherapy and drug-eluting bead bronchial artery chemoembolization (DEB-BACE) or microwave ablation (MWA) has been attempted as an effective and safe approach for advanced non-small cell lung cancer (NSCLC). However, the outcomes of immunotherapy plus multiple interventional techniques for advanced NSCLC remain unclear. This retrospective study thus aimed to investigate the effectiveness and safety of the maintenance treatment of programmed cell death protein 1 (PD-1) blockade after MWA plus DEB-BACE for advanced NSCLC.

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Given the importance of ICT diffusion in the development of the financial sector, this analysis is an effort to analyze the transmission channels between the two in high-income and middle and low-income economies over 2001-2019. We have used three variables, including the ICT index, individuals using the internet, and mobile subscribers, to represent ICT and three indices, including the financial development index, financial institution index, and financial market index, to make our results reliable and robust. We utilized a GMM method for conducting the empirical analysis.

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Purpose: This study aimed to explore the similarities and differences in clinical presentations, multidetector computed tomographic (MDCT) features, and treatment of three types of adult intussusceptions based on location.

Methods: We retrospectively reviewed 184 adult patients with 192 intussusceptions. Depending on the location, intussusceptions were classified as enteric, ileocolic, and colonic types.

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Article Synopsis
  • Researchers have discovered a way to significantly improve upconversion electroluminescence efficiency in single molecules, surpassing previous efforts by over ten times.
  • This enhancement is achieved by carefully engineering the energy levels at the interface between the molecule and the substrate, allowing for a more effective process known as spin-triplet mediated upconversion.
  • The study includes detailed diagrams of electroluminescence which help clarify the conditions necessary for efficient emission, contributing valuable understanding to both single-molecule upconversion and organic electroluminescence as a whole.
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Background: Immunohistochemistry (IHC) is an essential technique in surgical and clinical pathology for detecting diagnostic, prognostic, and predictive biomarkers for personalized cancer therapy. However, the lack of standardization and reference controls results in poor reproducibility, and a reliable tool for IHC quantification is urgently required. The objective of this study was to describe a novel approach in which H3F3B (histone H3, family 3B) can be used as an internal reference standard to quantify protein expression levels using IHC.

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Objectives: To evaluate the safety and efficacy of microwave ablation (MWA) for stage I non-small cell lung cancer (NSCLC) in patients with idiopathic pulmonary fibrosis (IPF).

Materials And Methods: A retrospective single-center cohort study was conducted in patients with clinical stage I NSCLC who underwent CT-guided MWA from Nov 2016 to Oct 2021. The patients were divided into the IPF group and the non-IPF group.

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