1.Early outcomes of robot-assisted subxiphoid approach and intercostal approach for anterior mediastinal tumors: A retrospective cohort study
Weiqiang ZENG ; Haili DANG ; Lifei WANG ; Zhen PENG ; Xiangdou BAI ; Bing WANG ; Xiaoyang HE ; Dacheng JIN ; Yunjiu GOU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(03):369-375
Objective To compare the clinical outcomes of subxiphoid robot-assisted thoracoscopic surgery (SRATS) and intercostal robot-assisted thoracoscopic surgery (IRATS) in the treatment of anterior mediastinal tumors. Methods A retrospective analysis was conducted on patients with anterior mediastinal tumors who underwent robot-assisted surgery in the Department of Thoracic Surgery, Gansu Provincial Hospital, from May 2020 to July 2022. According to the surgical approach, patients were divided into an SRATS group and an IRATS group. Perioperative data were compared between the two groups. Results A total of 87 patients were included. There were 41 patients in the SRATS group [23 males, 18 females; mean age, (44.51±11.28) years] and 46 patients in the IRATS group [21 males, 25 females; mean age, (46.67±8.76) years]. Compared with the IRATS group, the SRATS group had significantly less intraoperative blood loss [(24.41±6.67) mL vs. (37.93±9.23) mL, P<0.001], shorter postoperative drainage duration [(1.73±0.59) days vs. (2.54±0.50) days, P<0.001], lower postoperative drainage volume [(94.46±34.08) mLvs. (116.72±24.90) mL, P=0.001], lower visual analogue scale (VAS) pain scores on postoperative day 1 [(3.66±0.76) points vs. (4.15±0.84) points, P=0.005] and day 3 [(2.41±0.59) points vs. (2.89±0.82) points, P=0.003], shorter postoperative hospital stay [(4.12±0.81) days vs. (4.98±1.02) days, P<0.001], and lower hospitalization costs [(4.51±0.65) ten thousand yuan vs. (4.86±0.68) ten thousand yuan, P=0.020]. There were no statistical differences between the two groups in operative time or incidence of postoperative complications (P>0.05). Conclusion Both SRATS and IRATS are safe and effective for the treatment of anterior mediastinal tumors. However, SRATS is less invasive and more conducive to enhanced postoperative recovery.
2.Association between socio ecological risk factors, physical activity developmental trajectory and depressive symptoms among junior and senior high school students
SUN Zhiying, LIU Zhonghui, LI Fengqin, WANG Xiaoyang, XU Ke, CUI Yushan, ZHANG Xianwei
Chinese Journal of School Health 2026;47(5):676-679
Objective:
To explore the relationship between socio ecological risk factors (SERF), physical activity (PA) developmental trajectories, and depressive symptoms among junior and senior high school students in Tianjin, in order to provide theoretical support for comprehensive interventions for adolescent depression.
Methods:
A longitudinal follow up design was adopted. In September 2022, a baseline survey was conducted using a stratified cluster random sampling method in two junior high schools and two senior high schools in Tianjin, collecting data on students basic information, SERF, PA, and depressive symptoms. Two follow up surveys were conducted in September 2023 and 2024, yielding 588 valid participants. Latent class growth analysis (LCGA) was used to identify PA developmental trajectory categories among junior and senior high school students. Logistic regression was applied to examine the associations between depressive symptoms and SERF as well as PA trajectories.
Results:
The detection rates of depressive symptoms among Tianjin junior and senior high school students over the three years were 26.53%, 20.24%, and 21.26 %, respectively. Depressive symptoms were positively correlated with SERF ( OR=1.04, 95%CI=1.03-1.05, P <0.05). The highest risks were observed in the individual dimension and family dimension ( OR =1.28, 1.21, both P <0.05). LCGA identified three PA trajectory groups:persistently low level (80.65%), persistently high level (4.58%), and slowly increasing group ( 14.77 %). Multivariate regression analysis showed that compared with the persistently low level PA, the slowly increasing PA significantly reduced the risk of depressive symptoms ( OR=0.44, 95%CI =0.20-0.88), while SERF still increased the risk of depressive symptoms ( OR=1.04, 95%CI =1.03-1.05) (both P <0.05).
Conclusion
SERF are risk factors for depression symptoms among junior and senior high school students, whereas slowly increasing PA development trajectory demonstrates a protective effect.
3.Analysis of the Distribution of Traditional Chinese Medicine Syndromes and Their Correlation with Bone Mineral Density and Bone Metabolism Markers in Postmenopausal Women with Dyslipidemia
Jiajin LU ; Chuanrui SUN ; Xiaoyang WANG ; Chiyun SUN ; Yuqi YANG ; Yunwen LI ; Xu WEI
Journal of Traditional Chinese Medicine 2026;67(19):2103-2108
ObjectiveTo investigate the distribution of traditional Chinese medicine (TCM) syndrome patterns among postmenopausal women with dyslipidemia, and to examine the correlations of lipid parameters with bone mineral density (BMD) and bone metabolism markers across common TCM syndrome patterns, thereby providing a clinical reference for individualized integrative traditional Chinese and western medicine interventions stratified according to TCM syndrome patterns. MethodsA multi-center cross-sectional study was conducted among postmenopausal women aged 45-64 years with dyslipidemia. TCM syndromes were determined using a scale-based scoring method. BMD measurements were collected, and fasting venous blood samples were assayed for lipid parameters including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C), and bone metabolism biomarkers including osteocalcin (OST), total procollagen type Ⅰ N-terminal propeptide (P1NP), alkaline phosphatase (ALP), bone-specific alkaline phosphatase (BALP), β-isomerized C-terminal telopeptide of type Ⅰ collagen (β-CTX), 25-hydroxyvitamin D [25(OH)D], and thyroid-stimulating hormone (TSH). Chi-square tests were used to compare the distribution of dyslipidemia across different TCM syndromes. Spearman's rank correlation analysis was performed to evaluate the correlations between TCM syndrome patterns and dyslipidemia, as well as the correlations of lipid parameters with BMD and bone metabolism markers within each syndrome pattern. ResultsA total of 506 postmenopausal women with dyslipidemia were included, comprising 172 cases of spleen-kidney yang deficiency syndrome (33.99%), 163 cases of phlegm-turbidity obstruction syndrome (32.21%), 118 cases of liver-kidney yin deficiency syndrome (23.32%), 33 cases of qi stagnation and blood stasis syndrome (6.52%), and 20 cases of yin deficiency and yang hyperactivity syndrome (3.95%). Phlegm-turbidity obstruction syndrome was negatively correlated with TC abnormality (r=-0.120, P=0.007) and positively correlated with TG abnormality (r=0.246, P<0.001). Spleen-kidney yang deficiency syndrome and liver-kidney yin deficiency syndrome were both negatively correlated with TG abnormality (r=-0.101, P=0.023; r=-0.116, P=0.009, respectively). Further correlation analysis confirmed that phlegm-turbidity obstruction syndrome was negatively correlated with TC abnormality (r=-0.120) and significantly positively correlated with TG abnormality (r=0.246). Both the spleen-kidney yang deficiency syndrome and liver-kidney yin deficiency syndrome were negatively correlated with TG abnormality (r=-0.101 and r=-0.116, respectively). In patients with phlegm-turbidity obstruction syndrome, HDL-C was negatively correlated with BMD at the left femoral neck (r=-0.178, P=0.023) and at left total hip (r=-0.190, P=0.015). In patients with liver-kidney yin deficiency syndrome, TG was positively correlated with BMD at the lumbar spine (L1-L4) and left total hip (r=0.214, P=0.020; r=0.221, P=0.016, respectively). More significant correlations were observed in patients with spleen-kidney yang deficiency syndrome, TG was positively correlated with ALP (r=0.210, P=0.006); TC was positively correlated with TSH and 25(OH)D (r=0.153, P=0.045; r= 0.231, P=0.002, respectively); HDL-C was positively correlated with OST and 25(OH)D (r=0.156, P=0.040; r=0.228, P=0.003, respectively); and LDL-C was positively correlated with TSH and 25(OH)D (r=0.156, P= 0.041; r=0.182, P=0.017, respectively). In patients with liver-kidney yin deficiency syndrome, HDL-C was negatively correlated with TSH (r=-0.204, P=0.027). ConclusionThe association between dyslipidemia and skeletal health in postmenopausal women varies across TCM syndromes. Lipid abnormalities in women with phlegm-turbidity obstruction syndrome or liver-kidney yin deficiency syndrome are accompanied primarily by site-specific alterations in BMD, whereas those in women with spleen-kidney yang deficiency syndrome are reflected mainly in changes in bone metabolism markers. These findings suggest that targeted intervention strategies should be developed according to TCM syndrome characteristics for postmenopausal women with dyslipidemia.
4.Analysis of the Distribution of Traditional Chinese Medicine Syndromes and Their Correlation with Bone Mineral Density and Bone Metabolism Markers in Postmenopausal Women with Dyslipidemia
Jiajin LU ; Chuanrui SUN ; Xiaoyang WANG ; Chiyun SUN ; Yuqi YANG ; Yunwen LI ; Xu WEI
Journal of Traditional Chinese Medicine 2026;67(19):2103-2108
ObjectiveTo investigate the distribution of traditional Chinese medicine (TCM) syndrome patterns among postmenopausal women with dyslipidemia, and to examine the correlations of lipid parameters with bone mineral density (BMD) and bone metabolism markers across common TCM syndrome patterns, thereby providing a clinical reference for individualized integrative traditional Chinese and western medicine interventions stratified according to TCM syndrome patterns. MethodsA multi-center cross-sectional study was conducted among postmenopausal women aged 45-64 years with dyslipidemia. TCM syndromes were determined using a scale-based scoring method. BMD measurements were collected, and fasting venous blood samples were assayed for lipid parameters including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C), and bone metabolism biomarkers including osteocalcin (OST), total procollagen type Ⅰ N-terminal propeptide (P1NP), alkaline phosphatase (ALP), bone-specific alkaline phosphatase (BALP), β-isomerized C-terminal telopeptide of type Ⅰ collagen (β-CTX), 25-hydroxyvitamin D [25(OH)D], and thyroid-stimulating hormone (TSH). Chi-square tests were used to compare the distribution of dyslipidemia across different TCM syndromes. Spearman's rank correlation analysis was performed to evaluate the correlations between TCM syndrome patterns and dyslipidemia, as well as the correlations of lipid parameters with BMD and bone metabolism markers within each syndrome pattern. ResultsA total of 506 postmenopausal women with dyslipidemia were included, comprising 172 cases of spleen-kidney yang deficiency syndrome (33.99%), 163 cases of phlegm-turbidity obstruction syndrome (32.21%), 118 cases of liver-kidney yin deficiency syndrome (23.32%), 33 cases of qi stagnation and blood stasis syndrome (6.52%), and 20 cases of yin deficiency and yang hyperactivity syndrome (3.95%). Phlegm-turbidity obstruction syndrome was negatively correlated with TC abnormality (r=-0.120, P=0.007) and positively correlated with TG abnormality (r=0.246, P<0.001). Spleen-kidney yang deficiency syndrome and liver-kidney yin deficiency syndrome were both negatively correlated with TG abnormality (r=-0.101, P=0.023; r=-0.116, P=0.009, respectively). Further correlation analysis confirmed that phlegm-turbidity obstruction syndrome was negatively correlated with TC abnormality (r=-0.120) and significantly positively correlated with TG abnormality (r=0.246). Both the spleen-kidney yang deficiency syndrome and liver-kidney yin deficiency syndrome were negatively correlated with TG abnormality (r=-0.101 and r=-0.116, respectively). In patients with phlegm-turbidity obstruction syndrome, HDL-C was negatively correlated with BMD at the left femoral neck (r=-0.178, P=0.023) and at left total hip (r=-0.190, P=0.015). In patients with liver-kidney yin deficiency syndrome, TG was positively correlated with BMD at the lumbar spine (L1-L4) and left total hip (r=0.214, P=0.020; r=0.221, P=0.016, respectively). More significant correlations were observed in patients with spleen-kidney yang deficiency syndrome, TG was positively correlated with ALP (r=0.210, P=0.006); TC was positively correlated with TSH and 25(OH)D (r=0.153, P=0.045; r= 0.231, P=0.002, respectively); HDL-C was positively correlated with OST and 25(OH)D (r=0.156, P=0.040; r=0.228, P=0.003, respectively); and LDL-C was positively correlated with TSH and 25(OH)D (r=0.156, P= 0.041; r=0.182, P=0.017, respectively). In patients with liver-kidney yin deficiency syndrome, HDL-C was negatively correlated with TSH (r=-0.204, P=0.027). ConclusionThe association between dyslipidemia and skeletal health in postmenopausal women varies across TCM syndromes. Lipid abnormalities in women with phlegm-turbidity obstruction syndrome or liver-kidney yin deficiency syndrome are accompanied primarily by site-specific alterations in BMD, whereas those in women with spleen-kidney yang deficiency syndrome are reflected mainly in changes in bone metabolism markers. These findings suggest that targeted intervention strategies should be developed according to TCM syndrome characteristics for postmenopausal women with dyslipidemia.
5.Research progress of immune checkpoint therapy in advanced thyroid cancer
Pan CHEN ; Yunzheng JIANG ; Xiaoyang YUAN ; Jinghui ZOU ; Letong WANG ; Lingwei GU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2025;45(10):632-636
Thyroid cancer (TC) is the most prevalent malignancy of the endocrine system. While most patients achieve favorable prognoses with early treatment, patients with advanced TC face a scarcity of effective therapeutic strategies. The thyroid gland is one of the most immunogenic tissues in the human body. With the deepening understanding of immune evasion mechanisms in TC and the application of immunotherapy in various solid malignancies, immune checkpoint therapy for TC has shown considerable therapeutic potential, offering new hope for patients with advanced TC. This paper focuses on summarizing the latest advancements in immune checkpoint therapy for TC, aiming to provide new directions for future research.
6.Study on changes of choroid plexus volume in patients with essential hypertension using deep learning-based image segmentation
Shiluo YANG ; Chujie CHEN ; Hao YU ; Xiaoyang WANG ; Liyuan FU
China Medical Equipment 2025;22(9):8-11
Objective:To investigate changes of choroid plexus volume in patients with essential hypertension using deep learning-based segmentation technique.Methods:According to the inclusion criteria,19 patients with essential hypertension who visited The 900th Hospital of People's Liberation Army Joint Service Support Force from December 2022 to May 2024 were divided into hypertension group.Additionally,19 healthy individuals,matched with the hypertension group in terms of gender,age,and years of education,were recruited as the healthy control group during the same period.All participants underwent data acquisition of three-dimensional T1(T1-3D)brain structural images using a Siemens 3.0T Trio magnetic resonance(MR)scanner.A pre-trained deep learning model,which based on the 3D U-Net architecture and generated by fully convolutional neural network,was employed for choroid plexus segmentation,and the total brain volume and lateral ventricle volume were calculated using the United Imaging Artificial Intelligence(AI)platform.Statistical analysis of the choroid plexus volume and other data for both groups were performed using SPSS27.0.Results:Compared with the healthy control group(1 866 mm3),the hypertensive group(2 047 mm3)showed an abnormal increase in choroid plexus volume(x2=3.900,P<0.05).Moreover,the choroid plexus volume was positively correlated with lateral ventricle volume and systolic blood pressure(r=0.849,P<0.05),and was negatively correlated with digit span(forward)in the hypertensive group(r=-0.374,P<0.05).Conclusion:The choroid plexus volume in patients with essential hypertension abnormally increased,which might be a factor promoting to changes in brain structure,it can affect further the cognitive function of patients with hypertension.
7.A multicenter retrospective study of secondary transport on extracorporeal membrane oxygenation in critically ill children
Zhe ZHAO ; Ye CHENG ; Xiaohong WU ; Yingyue LIU ; Mai LI ; Xiaoyu HE ; Wenzhe CHENG ; Feng WANG ; Yuxiong GUO ; Mingxia ZHANG ; Guodong HUANG ; Guoping LU ; Yuhan CHEN ; Kenan FANG ; Xiaoyang HONG
Chinese Journal of Pediatrics 2025;63(3):243-248
Objective:To evaluate the safety and efficacy of secondary transport on extracorporeal membrane oxygenation (ECMO) for critically ill children.Methods:This was a retrospective cohort study. Data from 222 pediatric patients who underwent ECMO transport from May 2019 to May 2024 at 5 ECMO centers and Chinese Database of Pediatric Extracorporeal Life Support Organization were collected. The cases were divided into primary and secondary transport groups by nature of transport. The clinical data, including demographics, ECMO indications, transport distance, pre-transport lab results, prognosis and complications were analyzed. Two independent samples t-test, Wilcoxon test, and χ2 test or Fisher′s exact probability method were used to compare the differences between 2 groups and evaluate the safety and efficacy of secondary transport. Results:Among the 222 children transported with ECMO, there were 135 males and 87 females, with an age of 3.0 (0.2, 7.0) years. There were 202 cases in the primary transport group and 20 cases in the secondary transport group. All secondary transport patients had failed attempts at weaning ECMO before transfer. The patients in the secondary transport group were older, had higher rates of surgical cannulation, circulatory support, and pre-ECMO lactate levels compared to the primary transport group (7.0 (2.8, 10.0) vs. 3.0 (0.2, 6.0) years old, 55.0% (11/20) vs. 3.6% (7/202), 80.0% (16/20) vs. 41.6% (84/202), (10±4) vs. (7±6) mmol/L, Z=3.41, χ 2=66.31, 10.99, t=2.24, all P<0.05). In the secondary transport group, the vasoactive-inotropic scores of patients on circulatory support and the oxygenation index for patients requiring respiratory support were higher than those in the primary transport group (83±33 vs. 82±68, 51.0±1.8 vs. 37.4±10.2, t=2.36, 2.63, respectively; both P<0.05). There were no statistically significant differences between the 2 groups in sex, transport distance, pre-ECMO creatinine, arterial blood gas BE values, and ECMO duration (all P>0.05). No life-threatening complications occurred during the transport in either group. Two patients in the secondary transport group underwent heart transplantation, and 1 patient underwent radiofrequency ablation. The overall survival rate between the 2 groups showed no statistically significant difference (45.0% (9/20) vs. 55.4% (112/202), χ2=1.15, P>0.05). Conclusions:Secondary ECMO transport for critically ill children don't increase mortality or life-threatening complications during transport. ECMO patients who cannot receive effective treatment locally can benefit from secondary transport to an advanced ECMO center provides further treatment opportunities.
8.Cytokine levels and clinical significance in patients with inflammatory bowel disease complicated by active tuberculosis following anti-tumor necrosis factor-α therapy
Xiaoyang LI ; Guizeng ZHAO ; Xia WANG
Journal of Clinical Medicine in Practice 2025;29(17):90-94
Objective To investigate the cytokine levels and their clinical significance in pa-tients with inflammatory bowel disease(IBD)complicated by active tuberculosis(ATB)following an-ti-tumor necrosis factor-α(TNF-α)therapy.Methods A retrospective study was conducted in 92 patients with IBD complicated by latent tuberculosis infection.The patients were divided into observa-tion group(37 cases)and control group(55 cases)based on whether they developed ATB.Enzyme-linked immunosorbent assay(ELISA)was used to measure serum cytokine levels,including interfer-on-γ(IFN-γ),interleukin-1 receptor antagonist(IL-1Ra),interleukin-2(IL-2),interleukin-4(IL-4),interleukin-10(IL-10)and interleukin-17(IL-17).Spearman correlation analysis was per-formed to evaluate the associations between cytokine levels and the risk of secondary ATB.Multivari-ate Logistic regression analysis was used to identify the influencing factors for development of ATB in IBD patients treated with anti-TNF-α therapy.Receiver operating characteristic(ROC)curves were plotted to evaluate the predictive value of cytokines for the development of ATB.Results The levels of IFN-γ,IL-1Ra,IL-2 and IL-10 in the observation group were significantly higher than those in the control group(P<0.05).The levels of IL-4 and IL-17 in the observation group were slightly higher than those in the control group,but the differences were not statistically significant(P>0.05).Positive correlations were observed between the levels of IFN-γ,IL-1Ra,IL-2 and IL-10 and the risk of secondary ATB(r=0.737,0.586,0.660 and 0.619,respectively;P<0.05).Serum levels of IFN-γ,IL-1Ra,IL-2 and IL-10 were all independent influencing factors for the de-velopment of ATB in IBD patients treated with anti-TNF-α therapy(P<0.05).ROC curve analysis revealed that the combination of IFN-γ,IL-1Ra and IL-10 had the highest predictive efficacy for the development of ATB in IBD patients treated with anti-TNF-α therapy,with an area under the curve of 0.996.Conclusion The serum levels of IFN-γ,IL-1Ra,IL-2 and IL-10 are significantly ele-vated in IBD patients complicated by ATB following anti-TNF-α therapy.These cytokines are all in-dependent influencing factors for the development of ATB,and the combination of IFN-γ,IL-1Ra and IL-10 demonstrates the highest predictive efficacy.
9.Nano-ITO induce pulmonary alveolar proteinosis through oxidative stress and activation of NF-κB/Nrf2 signaling pathway
Yinqiao LIN ; Yi ZHANG ; Xiaoyang CHEN ; Weikang LI ; Yujing NIU ; Xuefei WANG ; Nan LIU ; Gai LI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(2):81-90
Objective:To investigate the role of the nuclear factor-kappa B (NF-κB) /nuclear factor E2 related factor 2 (Nrf2) pathway in the occurrence of lung tissue in the pulmonary alveolar proteinosis (PAP) model of rats induced by indium tin oxide nanoprticles (Nano-ITO) .Methods:In October 2019, 120 SD rats were divided into 3, 7, 14, 28, 56, and 84 day Nano ITO exposure groups and corresponding time point control groups, with 10 rats in each group; the exposure group was treated with 6 mg/kg·bw Nano-ITO via non exposed tracheal injection, twice a week. Time-course studies were performed to examine the pulmonary toxicity induced by Nano-ITO. At the end of the experiment, cytokines levels and oxidative stress were analyzed in the bronchoalveolar lavaged fluid (BALF). Rat lung tissues were also harvested for staining with HE, PAS, Masson, and Oil Red O. Ultrastructure of lung tissue cells was observed by transmission electron microscope. The localization and expression of NF-κB p65, IκB-α, IKK-β, Nrf2, NQO1, HO-1 were observed by immunohistochemistry, Western blot and real-time fluorescent quantitative PCR. The comparison between the two groups was analyzed by independent sample T test, and the comparison between the multiple groups was analyzed by one-way ANOVA.Results:Nano-ITO intratracheal instillation caused pulmonary toxicity by inducing acute inflammation, granuloma (nodule) formation, and alveolar proteinosis. ELISA analysis showed that, compared with the corresponding time points control groups, the levels of superoxide dismutase (SOD), total antioxidant capacity (T-AOC), malondialdehyde (MDA), interleukin (IL) -1β, IL-6, tumor necrosis factor alpha (TNF-α), IL-10, total protein (TP), and lactate dehydrogenase (LDH) in BALF of rats exposed to Nano ITO were all increased ( P<0.05) ; The protein expression of Nrf2 and NF-κB p65 was upregulated in rat lung tissue, while the protein expression of KK-β was increased ( P<0.01). Nrf2 and its downstream proteins NQO1 and HO-1 were highly expressed in Nano-ITO-induced PAP rat. Conclusion:NF-κB/Nrf2 signal pathway is involved in the process of Nano-ITO induced pulmonary alveolar proteinosis in rats.
10.Prediction of pancreatic fistula after pancreaticoduodenectomy by multi-phase enhanced CT radiomics model
Tianxin CHENG ; Hongwei WU ; Zhixiang WANG ; Piao YAN ; Xiaoyang LI ; Zhenhao LIU ; Kuinan TONG ; Kun LIU ; Hui XU ; Zhenghan YANG
Journal of Practical Radiology 2025;41(4):603-607
Objective To compare the ability of single-phase,dual-phase,and triphasic models in forecasting postoperative pancreatic fistula(POPF)after pancreaticoduodenectomy(PD)using radiomics based on triphasic enhanced CT.Methods A total of 181 patients who underwent multi-phase enhanced CT prior to PD were retrospectively selected,and the collection phase included non-contrast,arterial phase(AP),and equilibrium phase(EP).3D Slicer software was utilized to segment the region of interest(ROI)for the postoperative pancreatic remnant on each phase.Radiomics feature extraction was performed using R software,followed by feature selection through least absolute shrinkage and selection operator(LASSO)regression with five-fold cross-validation to prevent model overfitting.The effective features selected were combined in a weighted linear manner to obtain a Radiomics score(Radscore).The patients were divided into training set and test set in a 7︰3 ratio.Logistic regression was employed to construct seven POPF prediction models(three single-phase,three dual-phase,and one triphasic models)based on different phase combinations.The diagnostic performance of the models was evaluated using the area under the curve(AUC)of receiver operating characteristic(ROC)curve,accuracy(ACC),sensitivity(SEN),and specificity(SPE).The DeLong test was applied to compare the differences in AUC among different models.Results After LASSO regression,24 effective features associated with POPF were selected from different phases.In the test set,the triphasic model exhibited the highest AUC and ACC(AUC=0.76,ACC=0.808).The calibration curve demonstrated the strongest agreement between the estimated probabilities and observed probabilities for the triphasic model.The decision curve analysis(DCA)curve indicated that the triphasic model had the largest threshold range with a higher net benefit.Conclusion Compared with single-phase and dual-phase models,the triphasic model based on enhanced CT provides better prediction of POPF after PD,aiding clinical decision-making and improve prognosis.


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