Objective:To explore the value of the vesical imaging-reporting and data system (VI-RADS) score based on multiparametric MRI (mpMRI) combined with quantitative tumor MRI parameters in assessing the muscle invasion of bladder cancer.Methods:The study was a case-control study. The data of 87 bladder cancer patients confirmed by pathology who underwent mpMRI of the bladder were retrospectively collected from the First Medical Center of Chinese PLA General Hospital between January 2019 and April 2023 The pathological findings were used as the gold standard to categorize them into the muscle invasive bladder cancer (MIBC) group (29 cases) and non-muscle invasive bladder cancer (NMIBC) group (58 cases). Quantitative parameters were measured based on preoperative mpMRI images, including the length of tumor bladder wall contact, the perpendicular distance between the bladder tumor and the tangent of the bladder wall, the maximal diameter of the bladder tumor, and the volume of the bladder tumor. Bladder cancer was classified according to the VI-RADS scoring criteria. The Mann-Whitney U test was used for intergroup comparisons. Multivariate logistic regression analysis was performed to obtain the independent risk factors related to muscle invasion of bladder cancer and to establish the model. The receiver operating characteristic curves were analyzed for MRI quantitative parameters and logistic regression models, and area under the curve (AUC) comparisons were performed using the DeLong test. Results:The differences in tumor bladder wall contact length, perpendicular distance from the tumor to the tangent line of the bladder wall, maximum diameter, bladder tumor volume, and the VI-RADS scores were statistically significant between the MIBC group and the NMIBC group ( P<0.05). Multifactorial logistic regression analysis showed that tumor bladder wall contact length ( OR=21.07, 95% CI 3.56-124.89, P=0.001) and VI-RADS score ( OR=11.90, 95% CI 3.53-40.12, P<0.001) were the independent risk factors for evaluating the muscle invasion of bladder cancer. The difference between the VI-RADS score and the tumor bladder wall contact length for assessing muscular infiltration of bladder cancer had AUCs of 0.802 (95% CI 0.704-0.899) and 0.759 (95% CI 0.652-0.865). The combined model of VI-RADS score combined with tumor bladder wall contact length had an AUC of 0.891 (95% CI 0.812-0.970), which was higher than the diagnostic efficacy of applying tumor bladder wall contact length or VI-RADS score alone ( Z=3.05, 2.37, P=0.002, 0.018). Conclusion:Tumor contact length with the bladder wall is an independent risk factor for assessing muscle invasion of bladder cancer and the combination of VI-RADS score may enhances diagnostic accuracy.

Objective:To evaluate the safety and efficacy of accelerator-based boron neutron capture therapy (AB-BNCT) in the treatment of recurrent and refractory malignant tumors.Methods:The data of 14 patients admitted to Xiamen Humanity Hospital from September 2022 to April 2023 were prospectively collected, including 7 patients with primary brain malignancies and 7 patients with locally recurrent inoperable head and neck malignancies. All patients received intravenous infusion of boron drug (NBB-001, p-dihydroxyborylphe nylalanine, a patented freeze-dried formulation) at a total nominal dosage of 500 mg/kg (11 patients) or 750 mg/kg (3 patients), and were irradiated with neutrons (operating with NeuPex system). Adverse events after treatment were recorded and assessed. The primary efficacy endpoint was the 90 d objective response rate (ORR), while the secondary endpoints included progression-free survival (PFS) and complete response rate (CRR). Data were compiled and analyzed by SAS 9.4 software. The rate and 95% CI were calculated using Clopper-Pearson method. Results:The median dose delivered to 80% of the target volume (D 80%) was 16.80 GyE (range: 8.93-23.79 GyE). The most common adverse reactions were hyperamylasemia, alopecia, and hyperprolactinemia. Five patients experienced 8 cases of grade 3 or above adverse events, including 1 case of grade 4 acute kidney injury and 7 cases of grade 3 adverse events. All adverse events were recovered after observation or treatment. At 90 d after treatment, the ORR of all patients was 9/14 (64%, 95% CI: 35%-87%), disease control rate (DCR) was 10/14 (71%, 95% CI: 42%-92%), CRR was 2/14 (14%, 95% CI: 2%-42%); and the best overall response during the entire course included an ORR of 10/14 (71% ,95% CI: 42%-92%), DCR of 13/14 (93%, 95% CI: 66%-100%), and CRR of 3/14 (21% ,95% CI: 5%-51%). The 1-year survival rate for head and neck malignancies was 71.4%, and the 2-year survival rate was 42.8%. The 1-year survival rate for recurrent brain malignancies was 42.8%. Conclusion:AB-BNCT demonstrates favorable safety and promising efficacy in treating primary brain malignancies and recurrent/refractory head and neck malignancies, representing a potential therapeutic option.

Objective:To evaluate the safety and effectiveness of robot-assisted coronary artery bypass(RACAB).Methods:We retrospectively analyzed the clinical outcomes from 252 consecutive patients who underwent RACAB in our center between April 2021 and August 2023. The internal mammary artery(IMA) was harvested using the skeletonized technique with the assistance of the robotic system. Then, graft-to-target vessel anastomoses were performed via a 4-6 cm left fifth intercostal thoracotomy. Coronary angiography or coronary CTA was routinely performed before discharge.Results:149 patients(59.1%) underwent multi-vessel coronary bypass. 140 patients(55.6%) underwent total arterial bypass grafting, with 131 patients(52.0%) undergoing RACAB with in situ bilateral IMA. IMA harvesting failed in 6 patients(1.6%). One patient(0.4%) was assisted by extracorporeal circulation, and 5 patients(2.0%) underwent re-thoracotomy postoperatively. The patency rate of grafts was 96.6%(449/465). The 12-month and 24-month survival rate were 97.8% and 96.5% respectively; The 12-month and 24-month MACCE-free survival rate were 95.2% and 92.6%, respectively.Conclusion:RACAB is safe and feasible. With the assistance of the robotic system, in situ bilateral IMA can be obtained and bypassed to all target vessels territory. Extended follow-up is warranted.

Objective:To analyze the association between daily physical activity patterns and dyslipidemia among people receiving physical examination aged 40-65 years.Methods:This cross-sectional study consecutively enrolled 864 participants aged 40-65 years and met the inclusion and exclusion criteria who underwent health check-ups at the Physical Examination Center of Fuquan First People′s Hospital from March to November in 2022. The data of general characteristics, physical activity, physical examination findings, and lipid profiles were collected. The daily physical activity patterns were identified using K-means clustering analysis. The unconditional binary logistic regression was employed to explore the associations between these activity patterns and dyslipidemia, followed by subgroup analyses.Results:The physical activity of the 864 study participants (517 males and 347 females) included in the analysis was divided into 4 patterns (G1: low physical activity; G2: active commuting; G3: housework; G4: leisure exercise). Using G1 as a reference, after adjusting for confounders, G4 was negatively associated with low high density lipoprotein cholesterol (HDL-C) ( OR=0.37, 95% CI: 0.14-1.00) ( P=0.05). In the male, G3 was negatively associated with dyslipidemia ( OR=0.44, 95% CI: 0.21-0.93) and low HDL-C ( OR=0.25, 95% CI: 0.10-0.68) (both P<0.05). In the subjects aged 50 years and above, G2 was negatively associated with dyslipidemia ( OR=0.52, 95% CI: 0.30-0.90), hypertriglyceridemia ( OR=0.50, 95% CI: 0.28-0.90) and low HDL-C ( OR=0.47, 95% CI: 0.24-0.91) (all P<0.05). In those who never or occasionally stayed up late, G2 was negatively associated with hypertriglyceridemia ( OR=0.31, 95% CI: 0.13-0.75) ( P<0.05); in those who stayed up late often, G4 was negatively associated with dyslipidemia ( OR=0.33, 95% CI: 0.13-0.85) and low HDL-C ( OR=0.19, 95% CI: 0.04-0.84) (both P<0.05). In the centrally obese population, G2 was negatively associated with dyslipidemia ( OR=0.55, 95% CI: 0.35-0.88) and hypertriglyceridemia ( OR=0.54, 95% CI: 0.33-0.86) (both P<0.05). Conclusions:Association between different physical activity patterns and dyslipidemia varied among adults aged 40-65 years undergoing health check-ups. Leisure-time exercise is associated with a reduced risk of dyslipidemia, while household activities also emerges as a beneficial factor linked to lower dyslipidemia risk particularly in the male population.

The imaging features of intracranial melanoma are similar to those of other intracranial tumors, and a definite diagnosis often cannot be made solely based on imaging examinations. Although molecular pathology can detect gene mutations and protein markers of intracranial melanoma, its diagnostic specificity is limited due to the cross-expression of markers. Studies have shown that the combined application of imaging and molecular pathology can obviously improve the diagnosis sensitivity and specificity of intracranial melanoma, and by integrating the morphological and molecular characteristics of the melanoma, this combined application can optimize individualized treatment strategies and play important roles in surgical planning, targeted therapy selection, and therapeutic efficacy detection. This article reviews the research progress on the synergistic role of imaging and molecular pathology in the diagnosis and targeted therapy of intracranial melanoma, with the aim of providing a reference for diagnosis and treatment of intracranial melanoma.

Objective To investigate the safety of endoscopic inflatable thyroid surgery on elderly patients by comparing the clinical characteristics and incidence of postoperative complications between elderly and non-elderly patients.Methods A retrospective analysis of clinical data was conducted on 204 patients who underwent endoscopic inflatable thyroid surgery at The Second Affiliated Hospital of Xi'an Jiaotong University from May 2021 to August 2024.Based on propensity score matching(PSM),a total of 54 elderly patients(age ≥60 years)and 150 middle-aged and young patients(18-59 years)were selected for comparison of clinical data,surgical-related indicators,and postoperative outcomes between the two groups.Results After matching,baseline data in both groups exhibited no statistically significant differences(P＞0.05).There were no statistically significant variances(P＞0.05)in intraoperative blood loss,surgical time,postoperative drainage volume,Faces Pain Scale-Revised(FPS-R),hoarseness,or hypoparathyroidism between the two groups.Although the two groups differed significantly in the Charlson Comorbidity Index(CCI)and age-adjusted Charlson Comorbidity Index(aCCI)(P＜0.05),there were no significant differences in the postoperative delirium,acute cardiocerebrovascular events,hospitalization costs,or postoperative length of stay(P＞0.05).One patient in the elderly group had postoperative delirium and but recovered 5 days after surgery.Conclusion Although elderly patients have more chronic complications than non-elderly,endoscopic thyroid surgery in elderly patients with thyroid tumors remains safe and effective,which makes it deserve clinical application.

Objective:To elucidate the effects of different morphologies and sizes of micro/nanomaterial on luminescence properties.Methods:Lu2O3:Eu3+micro-/nanocrystals with different morphologies were synthesized hydrothermally,and the effects of precursor concentration,reaction time,pH,and alkali source on morphology and photoluminescence were investigated.Products were calcined and then characterized for morphology and photoluminescence.Spectra were collected with 250 nm excitation,focusing on the O2-→Eu3+charge-transfer band(CTB)and Eu3+f-f transitions.Results:The use of NaOH,aqueous ammonia,or triethylamine yielded monodisperse square nanosheets after calcination,while the use of urea produced monodisperse and uniform nanospheres.Fluorescence measurements showed a strong CTB near 250 nm.Under 250 nm excitation,the emission comprised multiple peaks,with the the strongest being the 5D?→7F2 hypersensitive transition at 614 nm.Conclusions:In the hydrothermal system,alkali source and reaction parameters provide significant control over the morphology and size of Lu2O3:Eu3+micro-/nanocrystals.The morphology-dependent emission is dominated by red light at 614 nm(5D?→7F).

Objective To investigate the entrance surface dose (ESD) of dental radiological diagnosis and treatment devices in Nanping City of Fujian Province, China, assess the radiation risk differences between cone beam computed tomography (CBCT) and conventional oral panoramic tomography (COPT), and compare the output dose levels between domestic and imported devices and between public and private medical institutions, and to provide evidence for optimizing radiation protection strategies. Methods A cross-sectional survey was conducted on 38 extraoral dental X-ray devices from 38 dental institutions in Nanping City. Measurements of ESD for different exposure types (adult/child COPT and CBCT) were performed using an adult head-and-neck phantom and thermoluminescent dosimeters. A statistical analysis (Mann-Whitney U test) was applied to compare dose differences by device type and institution type. Results The median tooth-region doses for adult/child CBCT (8.97/6.80 mGy) were significantly higher than those of adult/child COPT (0.33/0.24 mGy), with the 75th percentile values (12.44/8.18 mGy) exceeding the national guideline level of 7 mGy. Domestically manufactured devices demonstrated higher median doses and greater dose variability compared to imported devices (P < 0.05). Private institutions exhibited inferior dose control stability relative to public institutions (P < 0.001). CBCT delivered substantially higher radiation exposure to the thyroid and ocular lenses, with child lens dose reaching 5.9 times that of COPT. Conclusion Dental CBCT radiation doses in Nanping City exceed the guideline level. Enhanced protection for sensitive organs, restriction of unnecessary pediatric examinations, technological upgrades for domestic devices, and strengthened regulation and operational standardization of private institutions are critical to achieve precise radiation protection and improved medical quality.

Objective To explore the microstructural alterations in the white matter of patients with Parkinson's disease(PD)with depression(PD-D)by Tract-based Spatial Statistics(TBSS),with the aim of identifying neuroimaging biomarkers for early diagnosis.Methods Participants with PD were recruited from the Parkinson Progression Marker Initiative database and categorized into PD-D group(n=50)and PD without depression(PD-ND)group(n=31)based on the Geriatric Depression Scale(GDS-15).Age-and gender-matched healthy volunteers were also included in healthy control(HC)group(n=23).All subjects underwent brain MRI-DTI scans.TBSS was utilized to compare fractional anisotropy(FA),mean diffusivity(MD),axial diffusivity(AD),and radial diffusivity(RD)values among groups and to perform Pearson correlation analysis with clinical PD data.Results Compared with HC group,FA values were significantly reduced and MD values were significantly increased in bilateral cingulate(hippocampus),crus,parahippocampal,inferior fronto-occipital fasciculus,inferior longitudinal fasciculus,uncinate fasciculus,superior longitudinal fasciculus(SLF),SLF(temporal),thalamic radiation and corticospinal tract of PD-D group(all P＜0.05).Compared with PD-ND group,MD values were significantly higher in the left cingulum(cingulate gyrus),left inferior fronto-occipital fasciculus,left SLF,left SLF(temporal),left thalamic radiation and left corticospinal tract of PD-D group,while AD values were significantly higher in the left SLF of PD-D group(all P＜0.05).Correlation analysis revealed that AD values in the left SLF were positively correlated with Epworth sleepiness scale score and GDS-15 score(r=0.192,P=0.043;r=0.443,P＜0.01).MD values in the differential brain regions were negatively correlated with Montreal cognitive assessment scale scores(r=-0.187,P=0.047)and positively correlated with GDS-15 scores(r=0.485,P＜0.01).Conclusion This study demonstrate that TBSS can reveal microstructural changes in the brains of PD-D patients,which may serve as neuroimaging biomarkers and provide guidance for clinical diagnosis and treatment.

Objective To explore the microstructural alterations in the white matter of patients with Parkinson's disease(PD)with depression(PD-D)by Tract-based Spatial Statistics(TBSS),with the aim of identifying neuroimaging biomarkers for early diagnosis.Methods Participants with PD were recruited from the Parkinson Progression Marker Initiative database and categorized into PD-D group(n=50)and PD without depression(PD-ND)group(n=31)based on the Geriatric Depression Scale(GDS-15).Age-and gender-matched healthy volunteers were also included in healthy control(HC)group(n=23).All subjects underwent brain MRI-DTI scans.TBSS was utilized to compare fractional anisotropy(FA),mean diffusivity(MD),axial diffusivity(AD),and radial diffusivity(RD)values among groups and to perform Pearson correlation analysis with clinical PD data.Results Compared with HC group,FA values were significantly reduced and MD values were significantly increased in bilateral cingulate(hippocampus),crus,parahippocampal,inferior fronto-occipital fasciculus,inferior longitudinal fasciculus,uncinate fasciculus,superior longitudinal fasciculus(SLF),SLF(temporal),thalamic radiation and corticospinal tract of PD-D group(all P＜0.05).Compared with PD-ND group,MD values were significantly higher in the left cingulum(cingulate gyrus),left inferior fronto-occipital fasciculus,left SLF,left SLF(temporal),left thalamic radiation and left corticospinal tract of PD-D group,while AD values were significantly higher in the left SLF of PD-D group(all P＜0.05).Correlation analysis revealed that AD values in the left SLF were positively correlated with Epworth sleepiness scale score and GDS-15 score(r=0.192,P=0.043;r=0.443,P＜0.01).MD values in the differential brain regions were negatively correlated with Montreal cognitive assessment scale scores(r=-0.187,P=0.047)and positively correlated with GDS-15 scores(r=0.485,P＜0.01).Conclusion This study demonstrate that TBSS can reveal microstructural changes in the brains of PD-D patients,which may serve as neuroimaging biomarkers and provide guidance for clinical diagnosis and treatment.