Guangyan Si

ORCID: 0000-0001-6305-5453
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Research Areas
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Gastric Cancer Management and Outcomes
  • Gastrointestinal Tumor Research and Treatment
  • Liver Disease and Transplantation
  • Liver Disease Diagnosis and Treatment
  • Radiomics and Machine Learning in Medical Imaging
  • Gastrointestinal disorders and treatments
  • MRI in cancer diagnosis
  • Organ Transplantation Techniques and Outcomes
  • Renal cell carcinoma treatment
  • Advanced X-ray and CT Imaging
  • Metastasis and carcinoma case studies
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Hepatitis Viruses Studies and Epidemiology
  • Cancer Mechanisms and Therapy
  • Retinoids in leukemia and cellular processes
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • Advanced Glycation End Products research
  • Artificial Intelligence in Healthcare and Education
  • Fatty Acid Research and Health
  • Radiation Dose and Imaging
  • Colorectal Cancer Surgical Treatments
  • Inflammatory Biomarkers in Disease Prognosis
  • Ovarian cancer diagnosis and treatment
  • Medical Imaging and Analysis

Southwest Medical University
2017-2025

Affiliated Hospital of Southwest Medical University
2020-2025

CM Hospital
2023

Background: With the widespread use of lumbar pedicle screws for internal fixation, morphology and surrounding tissues should be evaluated. The metal artifact reduction (MAR) technique can reduce artifacts caused by screws, improve quality computed tomography (CT) images after provide more imaging information to clinic. Purpose: To explore whether MAR + method, a projection-based algorithm correcting through multiple iterative operations, have an impact on structure metal. Materials Methods:...

10.1097/rct.0000000000001724 article EN cc-by-nc-nd Journal of Computer Assisted Tomography 2025-01-27

Abstract Purpose To evaluate the method and effectiveness of transcatheter arterial chemoembolization (TACE) combined with simultaneous DynaCT-guided Microwave ablation (MWA) for treatment small hepatocellular carcinoma (SHCC). Materials methods From June 2015 to May 2017, a total 28 consecutive patients SHCC received single TACE 23 subjects combination MWA. Following 1 month treatment, tumor response was assessed using mRECIST criteria outcomes were analyzed including...

10.1186/s40644-020-0294-5 article EN cc-by Cancer Imaging 2020-01-30

Abstract Background Given their widespread availability and relatively low cost, percutaneous thermal ablation is commonly performed under the guidance of computed tomography (CT) or ultrasound (US). However, such imaging modalities may be restricted due to insufficient image contrast limited tumor visibility, which results in imperfect intraoperative treatment an increased risk damage critical anatomical structures. Currently, magnetic resonance (MR) has been proven a possible solution...

10.1186/s12885-021-08099-7 article EN cc-by BMC Cancer 2021-04-07

Advanced glycation end products (AGEs) have been widely regarded as an important inducing factor in the pathogenesis of diabetic arteriosclerosis, and proliferation migration vascular smooth muscle cells (VSMCs) are also involved this process. However, it is not clear whether AGEs promote atherosclerosis by VSMCs. To figure out question, study investigated effects on human aorta (HASMCs) underlying mechanisms. This evaluated different concentrations cell migration. CCK8, transwell, western...

10.1155/2020/8607418 article EN cc-by BioMed Research International 2020-07-14

To evaluate the feasibility and safety of portal vein stenting (PVS) combined with 125I particle chain implantation sequential arsenic trioxide (As2O3) for treatment hepatocellular carcinoma (HCC) tumour thrombus (PVTT) by transcatheter arterial chemoembolization (TACE).From January 2015 to 2018, clinical data 30 patients HCC complicated PVTT were retrospectively analysed (26 men 4 women). The laboratory examinations, incidence adverse events, cumulative survival rate, stent patency all...

10.1155/2020/4109216 article EN cc-by BioMed Research International 2020-01-31

Computed tomography (CT) findings and clinicopathological characteristics of gastric gastrointestinal stromal tumors (GISTs) have been reported in the past, however, studies on their association with prognosis are limited. We aimed to evaluate correlation between multi-slice computed (MSCT) for GISTs. Multiple independent factors influencing prognostic assessment GISTs were recognized.The CT images data 155 patients retrospectively analyzed. Progression-free survival was obtained using...

10.21037/tcr.2020.02.26 article EN Translational Cancer Research 2020-03-01

Purpose. The goal of this study was to assess the clinical efficacy and safety arsenic trioxide (ATO)/lipiodol emulsion in transcatheter arterial chemoembolization (TACE) combined with apatinib treatment advanced hepatocellular carcinoma (HCC). Methods. From December 2015 February 2017, a total 87 patients were consecutively enrolled underwent ATO-TACE (aTACE) HCC. response adverse events assessed at first month third after aTACE therapy. Progression-free survival (PFS), overall (OS),...

10.1155/2021/5565793 article EN cc-by Canadian Journal of Gastroenterology and Hepatology 2021-08-19

To compare the accuracy of multi-slice spiral computerized tomography (MSCT) with colonoscopy for diagnosing synchronous colorectal carcinoma (SCC).We retrospectively analyzed all consecutive patients admitted to our institution between 19 September 2014 and 31 January 2020. Data on SCC who had undergone MSCT were analyzed. Information tumor location, size, missed diagnosis by or colonoscopy, T stage, pathological type, reasons was recorded used assess diagnostic accuracies...

10.1177/03000605221076060 article EN cc-by-nc Journal of International Medical Research 2022-01-01

Objective To evaluate the feasibility and safety of using cone-beam CT (CBCT) to measure changes in parenchymal blood volume (PBV) patients with hepatocellular carcinoma (HCC) after transcatheter arterial chemoembolization (TACE) guide microwave ablation (MWA) for residual tumors.Methods A retrospective study was performed on 42 HCC who completed TACE received CBCT-guided perfusion imaging. The active lesions were supplemented MWA complete treatment process according PBV. outcomes analyzed,...

10.1080/02656736.2021.1895331 article EN cc-by International Journal of Hyperthermia 2021-01-01

Abstract Background Accurate risk stratification for gastric stromal tumors (GSTs) has become increasingly important. The Armed Forces Institute of Pathology (AFIP) had higher accuracy and reliability in prognostic assessment treatment strategies patients with GSTs. This study aimed to investigate the feasibility multi-slice CT (MSCT) features GSTs predicting AFIP classification. Methods Clinical data MSCT 424 solitary were retrospectively reviewed. According pathological criteria, divided...

10.21203/rs.3.rs-2700657/v1 preprint EN cc-by Research Square (Research Square) 2023-03-22

To evaluate the outcomes of transjugular intrahepatic portosystemic shunt (TIPS) combined with AngioJet thrombectomy in patients noncirrhotic acute portal vein (PV) thrombosis.Retrospective analysis from January 2014 to March 2017, 23 underwent TIPS for PV thrombosis noncirrhosis. The rates technical success, patency PV, liver function changes, and complications were evaluated.Twenty-three treatment, a success rate 100%. Twenty-four hours after grade was improved significantly (P = .001)....

10.1097/md.0000000000024465 article EN cc-by-nc Medicine 2021-02-12

Background: Gastric metastases (GMs) are rare and often accompanied with synchronous of other organs. Synchronous isolated GMs from ascending colon carcinoma uncommon rarely studied. may be confused primary gastric tumors. Methods: A 45-year-old man presented to our hospital abdominal distension anal pendant expansion. The physical examination was negative. positive fecal occult blood test the negative tumor marker were obtained. Colonoscopy gastroduodenoscopy revealed a polypoidal lesion in...

10.1097/md.0000000000032476 article EN cc-by-nc Medicine 2022-12-23

Abstract Background Percutaneous tumor ablation is usually performed using computed tomography (CT) or ultrasound (US) guidance, although reliable visualization of the target may be challenging. MRI guidance can provide more and allow for multiplanar capabilities, making it modality choice. Due to lack comparative studies microwave ablation(MWA) guided by different images. This study retrospectively compared effectiveness (CT)-guided versus magnetic resonance (MR)-guided MWA hepatocellular...

10.21203/rs.3.rs-139722/v1 preprint EN cc-by Research Square (Research Square) 2021-01-06

Background: The Armed Forces Institute of Pathology (AFIP) had higher accuracy and reliability in prognostic assessment treatment strategies for patients with gastric stromal tumors (GSTs). AFIP classification is frequently used clinical applications. But the risk only available who are previously untreated received complete resection. We aimed to investigate feasibility multi-slice MSCT features GSTs predicting preoperatively. Methods: data 424 solitary were retrospectively reviewed....

10.3390/diagnostics13203192 article EN cc-by Diagnostics 2023-10-12

Objective To evaluate diagnostic value and analyze the complications of lung nodules by 64 slice CT guided percutaneous thoracic biopsy (PTB) with coaxial technique. Methods The clinical data 63 patients placeholder in line casing under guidance were retrospectively analyzed.After positioning, 16G trocar rapidly passed through pleura, tip to edge tumor or pathological lesions, pulled out needle core, sleeve 18G semi automatic needle, materials multi-angle cuted sent pathology...

10.3760/cma.j.issn.1008-6706.2017.16.021 article EN 2017-08-15

Abstract Background Gastric metastases (GM) are rare and often accompanied with synchronous of other organs. Synchronous isolated gastric from ascending colon carcinoma uncommon rarely studied. may be confused primary tumors. Case presentation: A case metastasis was confirmed by computed tomography (CT) pathological diagnosis. 45-year-old man presented to our hospital abdominal distension anal pendant expansion. The physical examination negative. positive fecal occult blood test the negative...

10.21203/rs.3.rs-1461939/v1 preprint EN cc-by Research Square (Research Square) 2022-03-28
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