1.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
2.A Case of Multidisciplinary Treatment for Inflammatory Myofibroblastic Tumor Complicated by ANCA-Associated Vasculitis
Shaoying WANG ; Linyi PENG ; Ke ZHENG ; Zhiwei WANG ; Dachun ZHAO ; Xia ZHANG ; Lin ZHAO ; Wenhui WANG ; Weiqing WANG ; Zhenzhen ZHU ; Jin XU ; Min SHEN
JOURNAL OF RARE DISEASES 2026;5(1):43-51
A 51-year-old male presented with nasal obstruction, followed by progressive hearing loss and blurred vision. Imaging identified space-occupying lesions in the paranasal sinuses, orbits, and paraspinal regions, while laboratory tests confirmed positive anti-proteinase 3 anti-neutrophil cytoplasmic antibody(PR3- ANCA) immunoglobulin G (IgG)and markedly elevated serum IgG4. Despite treatment with corticosteroids, immunosuppressants, and radiotherapy, the patient exhibited steroid dependency with relentless disease progression. Following multidisciplinary consultation, a diagnosis of inflammatory myofibroblastic tumor (IMT) coexisting with ANCA- associated vasculitis (AAV) was favored, though IgG4-related disease remained a critical differential. Ultimately, profound immunosuppression precipitated a severe herpesvirus infection, leading to disseminated intravascular coagulation and multiple organ dysfunction syndrome. This case underscores the rarity and diagnostic complexity of concurrent IMT and AAV, highlights the therapeutic dilemma of balancing primary disease control against fatal opportunistic infections, and emphasizes the critical role of multidisciplinary collaboration in the diagnosis and treatment of complex diseases.
3.Longitudinal study on the relationship between DASH-style dietary pattern and allostatic load in Chinese pregnant women
Wenjuan LI ; Ziyan XU ; Min YU ; Fangfang YANG ; Hong ping ZHAO ; Yu-hong LI
Nutrition Research and Practice 2026;20(1):77-88
BACKGROUND/OBJECTIVES:
Unhealthy diets are associated with chronic stress. An allostatic load (AL) is a comprehensive physiological index that measures the chronic stress response of the body. As a healthy dietary pattern, the role of Dietary Approaches to Stop Hypertension (DASH) in the development of an AL during pregnancy remains unclear. This study examined the relationship between the DASH dietary pattern and AL during pregnancy.
SUBJECTS/METHODS:
This study was a prospective study. From January 2024 to November 2024, 134 pregnant women in the second trimester (23–27 weeks) and third trimester (32–36 weeks) of pregnancy who met the inclusion and exclusion criteria in the obstetrics clinic of a tertiary general hospital in Anhui Province were selected for a questionnaire survey, physical examination, and laboratory examination. The DASH dietary pattern was assessed using the DASH scoring tool, and the total AL score was calculated using nine biomarkers that represent the cardiovascular, metabolic, and immune systems. Logistic regression was used to analyze the relationship between the DASH score and AL.
RESULTS:
One hundred and thirty-four pregnant women were included in this study. At the second and third trimesters, 41.8% and 37% of pregnant women, respectively, were in the high AL group. The binary logistic regression results showed that the DASH score was negatively correlated with the AL in the unadjusted model (odds ratio [OR], 0.878; 95% confidence interval [CI], 0.807–0.957; P = 0.003) and adjusted model (OR, 0.878; 95% CI, 0.792–0.973; P = 0.013) in the second trimester, the DASH score was negatively correlated with the AL in the unadjusted model (OR, 0.832; 95% CI, 0.758–0.913; P < 0.001) and adjusted model (OR, 0.806; 95% CI, 0.716–0.908; P < 0.001) in the third trimester.
CONCLUSION
The DASH score was negatively correlated with the AL in pregnant women.A low DASH score may increase the risk of a high AL, which may have adverse effects on physical and mental health.
4.The Dual Role and Clinical Potential of Core Fucosylation in Liver Diseases
Zi-Han LEI ; Hui-Min XU ; De-Zhi ZHAO ; Yong-Hong GUO ; Hao-Qi DU
Progress in Biochemistry and Biophysics 2026;53(8):2161-2178
Core fucosylation, catalyzed exclusively by fucosyltransferase 8 (FUT8), is an evolutionarily conserved post-translational modification that has emerged as a central regulatory hub linking liver homeostasis, chronic disease progression, and malignant transformation. Liver diseases, particularly hepatocellular carcinoma, remain a leading global health burden characterized by late diagnosis, limited therapeutic options, and poor overall survival. While aberrant glycosylation is now recognized as a hallmark of cancer and inflammatory disorders, existing research on FUT8-mediated core fucosylation in liver diseases remains fragmented: the dynamic functional switch of FUT8 from a homeostatic regulator to a pathological driver across the full disease continuum has not been systematically delineated, and the integrated mechanisms by which core fucosylation modulates oncogenic signaling, metabolic reprogramming, and immune evasion remain poorly understood. This review synthesizes recent advances to establish a unified framework for understanding the dual role of core fucosylation in liver physiology and pathology, and evaluates its translational potential for precision medicine. At the molecular level, FUT8’s unique catalytic specificity makes core fucosylation an irreplaceable modification, as evidenced by the perinatal lethality and severe organ dysfunction in Fut8 knockout mice. In hepatocellular carcinoma, genomic amplification of guanosine 5'-diphosphate-fucose biosynthetic enzymes provides metabolic support for aberrant core fucosylation. FUT8 expression is tightly regulated by a multi-layered network: transcriptional activation via Wnt/β‑catenin and wild-type p53, epigenetic upregulation by lncRNAs, post-transcriptional repression by miR-122-5p and miR-34a, and virus-specific induction by hepatitis B virus/hepatitis C virus. Physiologically, core fucosylation maintains liver homeostasis through four core mechanisms: it acts as a molecular switch for epidermal growth factor receptor/hepatocyte growth factor receptor signaling to enable liver regeneration; directs polarized secretion of hepatocyte-derived glycoproteins into bile ducts; modulates cholesterol metabolism via the hepatocyte nuclear factor 1α-proprotein convertase subtilisin/kexin type 9-low density lipoprotein receptor axis; and regulates aging through insulin‑like growth factor 1 receptor signaling. Pathologically, core fucosylation exhibits context-dependent dual functions: in liver fibrosis, FUT8 upregulation in hepatic stellate cells forms a negative feedback loop that limits excessive fibrogenesis; in hepatocellular carcinoma, however, aberrant FUT8 overexpression drives cell-autonomous malignancy by constitutively activating epidermal growth factor/hepatocyte growth factor receptor, transforming growth factor‑β/Smad, and Wnt/β‑catenin pathways, while simultaneously establishing a multi-layered immune evasion network by stabilizing programmed cell death ligand 1 and cluster of differentiation 47, and impairing natural killer cell homeostasis via interleukin‑2 receptor β glycosylation. Clinically, stage-specific core fucosylation biomarkers enable non-invasive monitoring of liver disease progression: low molecular mass kringle-Fc fusion protein outperforms conventional markers for early fibrosis detection, while alpha-fetoprotein-L3 and novel glycopeptides (α‑2‑macroglobulin N‑linked glycosylation site 1424, lumican core fucosylated peptide) significantly improve early hepatocellular carcinoma diagnosis, especially in alpha-fetoprotein-negative patients. Next-generation detection technologies (chemoenzymatic labeling, site-specific mass spectrometry) overcome the specificity limitations of traditional lectin assays. Therapeutically, four promising strategies are emerging: small-molecule FUT8 inhibitors, afucosylated antibodies with enhanced antibody‑dependent cellular cytotoxicity, Fuc-modified targeted drug delivery systems, and core fucose-specific lectins for NASH treatment. The core challenge for clinical translation lies in FUT8’s inherent “double-edged sword” effect, as systemic inhibition disrupts its essential physiological functions beyond pathological roles. Long-term systemic FUT8 blockade not only impairs post-injury liver regeneration by abrogating epidermal growth factor/hepatocyte growth factor receptor signaling but also disrupts cholesterol homeostasis via the hepatocyte nuclear factor 1α-proprotein convertase subtilisin/kexin type 9-low density lipoprotein receptor axis, leading to dyslipidemia and altered bile secretion. Critically, it compromises immune surveillance by destabilizing interleukin‑2 receptor β on natural killer cells, reducing their cytotoxic activity against malignant and virally infected cells, and impairs IgG Fc-mediated effector functions, increasing susceptibility to infections. This fundamental trade-off between therapeutic efficacy and systemic toxicity necessitates a paradigm shift from non-specific global inhibition to precision modulation of pathological core fucosylation. By addressing these critical challenges, FUT8-mediated core fucosylation has the potential to transform liver disease management from late-stage intervention to early detection and precision therapy, ultimately improving patient outcomes and reducing the global burden of liver diseases.
5.Erchentang Alleivates Depression in Obese Mice by Regulating PPAR Signaling Pathway
Qiao YU ; Shiwei HU ; Jinrong ZHANG ; Jun XU ; Min ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):22-31
ObjectiveTo observe the therapeutic effect of Erchentang on depression in obese mice and explore the therapeutic mechanism. MethodsC57BL/6J mice were randomized into the control, model, metformin (0.65 g·kg-1), and low-, medium-, and high-dose (3.35, 6.7, and 13.4 g·kg-1, respectively) Erchentang groups. Gavage was initiated simultaneously with modeling and continued for 28 days. The therapeutic effects of Erchentang were evaluated through behavioral tests, liver and brain indices, liver function, lipid indicators, and histopathological changes in the liver and brain tissue. RNA-seq technology was used to conduct transcriptomic analysis of mouse liver tissue, and differentially expressed genes were screened and subjected to Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Key genes were further verified by Western blot and Real-time polymerase chain reaction(Real-time PCR). ResultsBehavioral tests, liver function, lipid indicators, and histopathological changes in the liver and brain tissue all demonstrated that Erchentang had therapeutic effects on depression in obese mice. KEGG pathway enrichment analysis of transcriptomic data indicated that Erchentang treated depression in obese mice mainly through the peroxisome proliferator-activated receptor (PPAR) signaling pathway. Western blot and Real-time PCR results showed that compared with the model group, the low-, medium-, and high-dose Erchentang groups exhibited downregulated expression of fatty acid-binding protein (FABP) 1 (P<0.01) and upregulated expression of acyl-CoA oxidase (ACOX) 1, PPARα, cholesterol 7α-hydroxylase (CYP7A) 1, and phosphoenolpyruvate carboxy kinase (PCK) 1 (P<0.05) in the liver tissue. ConclusionErchentang exerts therapeutic effects on obesity-associated depression by regulating the PPAR signaling pathway and the expression of related genes FABP1, ACOX1, PPARα, CYP7A1, and PCK1.
6.Tension hydrocele: report of 2 cases and literature review
Xun ZHAO ; Shumin WANG ; Min QIU ; Chuxiao XU ; Guoliang WANG ; Shudong ZHANG
Journal of Modern Urology 2025;30(1):69-72
[Objective] To explore the diagnosis and treatment experience of tension hydrocele. [Methods] The clinical data of 2 patients with tension hydrocele treated in our hospital were retrospectively analyzed.Relevant literature was retrieved to analyze the clinical characteristics of this disease. [Results] Case 1 was diagnosed due to swelling and pain of the left scrotum after trauma for more than one month, which worsened for one day.Physical examination showed high tension in the left scrotum and positive light transmission test.Ultrasound examination revealed that the blood flow signal in the left testis disappeared.Emergency left scrotal exploration and hydrocelectomy were performed.There was no sign of testis torsion during the operation.Case 2 was diagnosed mainly due to hydrocele of the right testis for 1 year, which worsened for 1 week and complicated with testis distension and pain.Physical examination showed high tension in the right scrotum and positive light transmission test.Ultrasound examination revealed that the blood flow signal in the right testis decreased.After 40ml of fluid was extracted under ultrasound monitoring, the blood flow signal in the right testis recovered.Hydrocelectomy was performed the next day.During the follow-up of 8 months, there was no recurrence of hydrocele.A search of domestic and foreign literature showed that there were no reports in domestic literature, while a total of 11 cases were reported in foreign literature. [Conclusion] Tension hydrocele of the testis is a rare emergency of the scrotum.Surgery or decompression should be performed as soon as possible to restore testicular blood supply, and hydrocelectomy should be performed simultaneously or in stages to prevent recurrence.
7.Research and Application of Scalp Surface Laplacian Technique
Rui-Xin LUO ; Si-Ying GUO ; Xin-Yi LI ; Yu-He ZHAO ; Chun-Hou ZHENG ; Min-Peng XU ; Dong MING
Progress in Biochemistry and Biophysics 2025;52(2):425-438
Electroencephalogram (EEG) is a non-invasive, high temporal-resolution technique for monitoring brain activity. However, affected by the volume conduction effect, EEG has a low spatial resolution and is difficult to locate brain neuronal activity precisely. The surface Laplacian (SL) technique obtains the Laplacian EEG (LEEG) by estimating the second-order spatial derivative of the scalp potential. LEEG can reflect the radial current activity under the scalp, with positive values indicating current flow from the brain to the scalp (“source”) and negative values indicating current flow from the scalp to the brain (“sink”). It attenuates signals from volume conduction, effectively improving the spatial resolution of EEG, and is expected to contribute to breakthroughs in neural engineering. This paper provides a systematic overview of the principles and development of SL technology. Currently, there are two implementation paths for SL technology: current source density algorithms (CSD) and concentric ring electrodes (CRE). CSD performs the Laplace transform of the EEG signals acquired by conventional disc electrodes to indirectly estimate the LEEG. It can be mainly classified into local methods, global methods, and realistic Laplacian methods. The global method is the most commonly used approach in CSD, which can achieve more accurate estimation compared with the local method, and it does not require additional imaging equipment compared with the realistic Laplacian method. CRE employs new concentric ring electrodes instead of the traditional disc electrodes, and measures the LEEG directly by differential acquisition of the multi-ring signals. Depending on the structure, it can be divided into bipolar CRE, quasi-bipolar CRE, tripolar CRE, and multi-pole CRE. The tripolar CRE is widely used due to its optimal detection performance. While ensuring the quality of signal acquisition, the complexity of its preamplifier is relatively acceptable. Here, this paper introduces the study of the SL technique in resting rhythms, visual-related potentials, movement-related potentials, and sensorimotor rhythms. These studies demonstrate that SL technology can improve signal quality and enhance signal characteristics, confirming its potential applications in neuroscientific research, disease diagnosis, visual pathway detection, and brain-computer interfaces. CSD is frequently utilized in applications such as neuroscientific research and disease detection, where high-precision estimation of LEEG is required. And CRE tends to be used in brain-computer interfaces, that have stringent requirements for real-time data processing. Finally, this paper summarizes the strengths and weaknesses of SL technology and envisages its future development. SL technology boasts advantages such as reference independence, high spatial resolution, high temporal resolution, enhanced source connectivity analysis, and noise suppression. However, it also has shortcomings that can be further improved. Theoretically, simulation experiments should be conducted to investigate the theoretical characteristics of SL technology. For CSD methods, the algorithm needs to be optimized to improve the precision of LEEG estimation, reduce dependence on the number of channels, and decrease computational complexity and time consumption. For CRE methods, the electrodes need to be designed with appropriate structures and sizes, and the low-noise, high common-mode rejection ratio preamplifier should be developed. We hope that this paper can promote the in-depth research and wide application of SL technology.
8.Advances in oral distant targeted nanodelivery systems
Min SUN ; Chuan-sheng HUANG ; Li-ping WANG ; Xu-li RUAN ; Yun-li ZHAO ; Xin-chun WANG
Acta Pharmaceutica Sinica 2025;60(1):72-81
Due to patient compliance and convenience, oral medication is likely the most common and acceptable method of drug administration. However, traditional dosage forms such as tablets or capsules may lead to low drug bioavailability and poor therapeutic efficiency. Therefore, with advancements in material science and micro/nano manufacturing technology, various carriers have been developed to enhance drug absorption in the gastrointestinal tract. In this context, we initially discuss the key biological factors that hinder drug transport and absorption (including anatomical, physical, and biological factors). Building on this foundation, recent progress in both conventional and innovative oral drug delivery routes aimed at improving drug bioavailability and targeting is reviewed. Finally, we explore future prospects for oral drug delivery systems as well as potential challenges in clinical translation.
9.Correlation between caregiver characteristics and clinical manifestations of patients with Alzheimer′s disease dementia
Jiwei JIANG ; Min ZHAO ; Qiwei REN ; Tianlin JIANG ; Huiying ZHANG ; Shirui JIANG ; Jun XU
Chinese Journal of Health Management 2025;19(2):87-92
Objective:To analyze the correlation between caregiver characteristics and clinical manifestations of patients with Alzheimer′s disease (AD) dementia.Methods:It was a cross-sectional study. A total of 167 patients with AD dementia and 167 matched caregivers from Chinese Imaging, Biomarkers, and Lifestyle study of Alzheimer′s Disease (CIBL) study between January 1 and December 31, 2023 were consecutively selected as the study subjects. The data such as gender, age, body max index (BMI), waist to hip ratio, educational years, combined chronic diseases, disease course and the Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Neuropsychiatric Inventory (NPI), Activities of Daily Living (ADL), Mini-Nutritional Assessment (MNA), and Dietary Diversity Score (DDS) of the patients were collected. The data such as gender, educational years, the relationship with patients, and the Caregiver Burden Inventory (CBI) score in the caregivers were also evaluated. According to the gender of caregivers, the patients were divided into female caregiver group (108 cases) and male caregiver group (59 cases). The Spearman correlation and multiple linear regression analyses were used to assess the impact of the caregiver characteristics on the cognitive function, NPS, activities of daily living, and nutritional status of the patients with AD dementia.Results:Among the 167 patients with AD dementia, 80 cases were men, and 87 cases were women, with a mean age of (68.43±7.51) years. Among the 167 matched caregivers, 59 were spouse, 98 were offspring, and 10 were others (nanny or other relatives). The AD patients in the male caregiver group had lower BMI and MNA scores than those in female caregivers′ group [(23.35±3.70) vs (24.80±3.33) kg/m 2, 22.00 (20.00, 24.50) vs 24.00 (21.00, 26.00) points] (both P<0.05). The educational years of the caregivers was negatively related to the ADL score ( r=-0.196), and was positively related to the MNA score of the patients ( r=0.180) (both P<0.05); while the CBI score of the caregiver was positively related to the age ( r=0.180), NPI score ( r=0.568) and ADL scores ( r=0.702) in the patients, and it was negatively related to the BMI ( r=-0.163), MMSE score ( r=-0.499), MoCA score ( r=-0.491) and MNA scores ( r=-0.387) in the patients (all P<0.05). The shorter educational years and elevated CBI score were independent risk factors for the decline in the MMSE score ( β=0.310, 95% CI: 0.021-0.598; β=-0.225, 95% CI:-0.297--0.154) and MNA score ( β=0.204, 95% CI: 0.067-0.340; β=-0.082, 95% CI:-0.116--0.049), as well as the increase in the NPI score ( β=-0.628, 95% CI:-1.208--0.047; β=0.575, 95% CI: 0.431-0.718) and ADL score ( β=-0.519, 95% CI:-0.860--0.179; β=0.361, 95% CI: 0.277-0.445) in the patients with AD dementia (all P<0.001). Conclusions:A low educational level of caregivers and a heavy caregiver burden are associated with decreased cognitive function, worsening NPS, reduced ADL, and declining nutritional status in patients with AD dementia.
10.Comparison of temporomandibular joint images with different fields of view in cone beam CT
Laiqing XU ; Jiazhu WANG ; Chen XU ; Jing ZHAO ; Min HU
Chinese Journal of Stomatology 2025;60(7):704-712
Objective:To observe and compare the application of different scanning fields of view (FOV) in cone beam CT (CBCT) imaging of the temporomandibular joint (TMJ), and to explore the advantages and disadvantages of different CBCT scanning FOV for TMJ imaging. The aim is to provide a reference for the rational selection of CBCT scanning FOV for TMJ imaging in clinical practice.Methods:A total of 46 patients with temporomandibular disorders [22 males, 24 females; median age 24.5 years (range from 12 to 84 years)] were enrolled from the Department of Stomatology,the First Medical Centre, Chinese PLA General Hospital, between January 2023 and January 2025. All patients underwent CBCT scanning of the temporomandibular joints with both large and small fields of view using the same CBCT device, Newtom 5G (QR S.r.l, Italy), including small-field-of-view (sFOV 6 cm×6 cm, 46 cases, 92 sides) and large-field-of-view (lFOV 15 cm×12 cm for 26 cases with 52 sides or 18 cm×16 cm for 20 cases with 40 sides). A self-matched design was used to compare imaging parameters (scan time, exposure time, reconstruction voxel, radiation dose, data volume), image quality, and lesion detection efficacy (articular surface flattening, surface erosion, osteophyte, subcortical sclerosis, subcortical cyst, intra-articular calcification). Additionally, differences in joint spaces, condylar head height, and condylar height were analyzed.Results:In the sFOV group, scan time (72 s vs. 24 s) and exposure time (14.6 s vs. 4.8 s) were significantly longer than those in the lFOV group, with smaller reconstruction voxels (0.15 mm vs. 0.3 mm). Radiation dose in the sFOV group [(199.94±5.52) mGy·cm] was significantly higher than that in the lFOV 15 cm×12 cm subgroup [(96.20±25.34) mGy·cm, t=-20.29, P<0.001] and the 18 cm×16 cm subgroup [(101.73±13.49) mGy·cm, t=-31.34, P<0.001]. In terms of data volume, the sFOV group [(274.18±1.74) MB] was larger than the lFOV 15 cm×12 cm subgroup [(208.83±20.13) MB, t=-16.75, P<0.001], while the lFOV 18 cm×16 cm subgroup [(386.39±1.63) MB] was significantly larger than the sFOV group [(274.83±1.78) MB, t=214.49, P<0.001]. sFOV images showed clearer anatomical margins, distinguishable trabecular bone, and fewer artifacts. The detection rate of subcortical cyst in the sFOV group (50.0%, 46/92) was significantly higher than that in the lFOV group (36.96%, 34/92, χ2=5.61, P=0.018), with a moderate agreement Kappa coefficient of 0.48. Detection rates of articular surface flattening (80.43%, 74/92) and osteophyte (55.43%, 51/92) were identical between groups, with a perfect agreement Kappa coefficient of 1. Detection rates of subcortical sclerosis (69.57% vs. 68.48%) and intra-articular calcification (5.43% vs. 4.34%) were slightly higher in sFOV but without statistical significance ( P>0.05), with high Kappa coefficients of 0.93 and 0.88, respectively. For subcortical erosion, sFOV detection rate (38.04%, 35/92) was higher than lFOV (26.09%, 24/92, Kappa=0.53, moderate agreement), with no significant difference in detection rate (χ2=2.97, P=0.085). There were no statistical differences in joint space or condylar head height measurements between groups ( P>0.05), but condylar height measurements in the sFOV group were significantly greater than those in the lFOV group ( t=4.52, P<0.001). Conclusions:Large FOV provides wide anatomical coverage, optimizes radiation dose and data processing efficiency, and is more convenient for quantitative TMJ measurements.Small FOV offers superior resolution for displaying subtle condylar structures and lesions.Clinically, the choice of scan field should be individualized based on examination objectives (large FOV for holistic assessment/quantitative analysis; small FOV for early bone lesion diagnosis), equipment performance, and patient characteristics.

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