1.An Attention-weighted Tri-modal Ultrasound Network (TUS-Net) for Screening of Atypical Hepatocellular Carcinoma From LR-M Liver Nodules
He-Chong ZHANG ; Liang-Hui HUANG ; Xue-Hua WANG ; Shang-Lin JIANG ; Ying-Ying CHEN ; Ya-Guang ZENG ; Wei ZHENG
Progress in Biochemistry and Biophysics 2026;53(5):1485-1498
ObjectiveDiscriminating atypical hepatocellular carcinoma (HCC) from other malignancies in liver nodules classified as Liver Imaging Reporting and Data System category M (LR-M) remains a significant diagnostic challenge on conventional ultrasound examination. The LR-M category, originally intended to capture non-HCC malignancies, paradoxically contains up to 63% of atypical HCCs that deviate from classic enhancement patterns, leading to potential misdiagnosis and suboptimal treatment planning. While deep learning has shown promise in HCC diagnosis, most existing models rely exclusively on single-modality ultrasound, overlooking the diagnostic benefits of integrating complementary information from multiple imaging sources. To address this gap, we propose a novel attention-weighted tri-modal ultrasound network (TUS-Net) that integrates contrast-enhanced ultrasound (CEUS), B-mode ultrasound (BUS), and time-intensity curves (TICs) to improve diagnostic accuracy for these clinically challenging lesions. MethodsOur framework incorporates a three-dimensional convolutional neural network (C3D) backbone to extract spatiotemporal features from CEUS videos, capturing dynamic vascular patterns critical for lesion characterization. To effectively fuse complementary modalities, we introduce a dual-channel feature fusion module (DCFFM) that adaptively combines features from CEUS and BUS through channel-wise attention mechanisms, allowing the model to dynamically weigh the contribution of each modality based on diagnostic relevance. Additionally, we propose a temporal intensity feature fusion module (TIFFM) that leverages quantitative hemodynamic information from TICs to guide the model’s attention toward diagnostically critical temporal phases, such as arterial wash-in and portal venous washout. The model is further enhanced by automated lesion localization using YOLOX and class activation mapping for interpretability, ensuring that predictions align with clinically meaningful imaging features. ResultsEvaluated on a tri-modal ultrasound dataset comprising 161 patients with pathologically confirmed LR-M nodules (131 atypical HCC and 30 non-HCC malignancies), our model achieved an accuracy of 86.83%, a sensitivity of 92.50%, a specificity of 75.50%, and an AUC of 89.32% in screening atypical HCC. Compared to single-modality baselines, TUS-Net demonstrated superior specificity, a clinically critical metric given the higher risk associated with misclassifying non-HCC malignancies. Ablation studies confirmed the contribution of each module, with the full model outperforming both standard C3D and 3D ResNet backbones integrated with attention mechanisms. A reader study involving junior and senior radiologists further validated the clinical utility of AI assistance, showing consistent improvements in specificity and inter-reader consistency, particularly for less experienced clinicians. ConclusionThese results surpass existing benchmark models and demonstrate the potential of our approach to enhance diagnostic precision in clinically specific cases. By intelligently fusing multi-modal ultrasound data with attention-guided mechanisms, TUS-Net offers a reliable and interpretable tool that holds promise for improving the non-invasive diagnosis of atypical HCC in challenging LR-M liver nodules.
2.An Attention-weighted Tri-modal Ultrasound Network (TUS-Net) for Screening of Atypical Hepatocellular Carcinoma From LR-M Liver Nodules
He-Chong ZHANG ; Liang-Hui HUANG ; Xue-Hua WANG ; Shang-Lin JIANG ; Ying-Ying CHEN ; Ya-Guang ZENG ; Wei ZHENG
Progress in Biochemistry and Biophysics 2026;53(5):1485-1498
ObjectiveDiscriminating atypical hepatocellular carcinoma (HCC) from other malignancies in liver nodules classified as Liver Imaging Reporting and Data System category M (LR-M) remains a significant diagnostic challenge on conventional ultrasound examination. The LR-M category, originally intended to capture non-HCC malignancies, paradoxically contains up to 63% of atypical HCCs that deviate from classic enhancement patterns, leading to potential misdiagnosis and suboptimal treatment planning. While deep learning has shown promise in HCC diagnosis, most existing models rely exclusively on single-modality ultrasound, overlooking the diagnostic benefits of integrating complementary information from multiple imaging sources. To address this gap, we propose a novel attention-weighted tri-modal ultrasound network (TUS-Net) that integrates contrast-enhanced ultrasound (CEUS), B-mode ultrasound (BUS), and time-intensity curves (TICs) to improve diagnostic accuracy for these clinically challenging lesions. MethodsOur framework incorporates a three-dimensional convolutional neural network (C3D) backbone to extract spatiotemporal features from CEUS videos, capturing dynamic vascular patterns critical for lesion characterization. To effectively fuse complementary modalities, we introduce a dual-channel feature fusion module (DCFFM) that adaptively combines features from CEUS and BUS through channel-wise attention mechanisms, allowing the model to dynamically weigh the contribution of each modality based on diagnostic relevance. Additionally, we propose a temporal intensity feature fusion module (TIFFM) that leverages quantitative hemodynamic information from TICs to guide the model’s attention toward diagnostically critical temporal phases, such as arterial wash-in and portal venous washout. The model is further enhanced by automated lesion localization using YOLOX and class activation mapping for interpretability, ensuring that predictions align with clinically meaningful imaging features. ResultsEvaluated on a tri-modal ultrasound dataset comprising 161 patients with pathologically confirmed LR-M nodules (131 atypical HCC and 30 non-HCC malignancies), our model achieved an accuracy of 86.83%, a sensitivity of 92.50%, a specificity of 75.50%, and an AUC of 89.32% in screening atypical HCC. Compared to single-modality baselines, TUS-Net demonstrated superior specificity, a clinically critical metric given the higher risk associated with misclassifying non-HCC malignancies. Ablation studies confirmed the contribution of each module, with the full model outperforming both standard C3D and 3D ResNet backbones integrated with attention mechanisms. A reader study involving junior and senior radiologists further validated the clinical utility of AI assistance, showing consistent improvements in specificity and inter-reader consistency, particularly for less experienced clinicians. ConclusionThese results surpass existing benchmark models and demonstrate the potential of our approach to enhance diagnostic precision in clinically specific cases. By intelligently fusing multi-modal ultrasound data with attention-guided mechanisms, TUS-Net offers a reliable and interpretable tool that holds promise for improving the non-invasive diagnosis of atypical HCC in challenging LR-M liver nodules.
3.Propensity score matched comparison of pancreatoduodenectomy with pancreatogastrostomy versus pancreatojejunostomy: A single institution experience shifting from pancreatogastrostomy to pancreatojejunostomy
Teik Wen LIM ; Sabrina Hui Xian CHEOK ; Yvette CHONG ; Darren Weiquan CHUA ; Ek Khoon TAN ; Jin Yao TEO ; Ye-Xin KOH ; Peng Chung CHEOW ; Pierce Kah Hoe CHOW ; London Lucien Peng Jin OOI ; Alexander Yaw Fui CHUNG ; Brian Kim Poh GOH
Annals of Hepato-Biliary-Pancreatic Surgery 2026;30(1):91-98
Background:
s/Aims: Postoperative pancreatic fistulas (POPF) remain a major cause of morbidity and mortality following pancreatoduodenectomy (PD). Pancreatogastrostomy (PG) and pancreatojejunostomy (PJ) are the two most commonly used reconstruction techniques, yet evidence favoring one over the other is inconclusive. This study evaluates postoperative outcomes following open PD at a single institution that transitioned from PG to PJ as the preferred reconstruction method.
Methods:
This retrospective comparative study included patients who underwent PD between April 2005 and August 2022. Of 757 patients identified, 522 met the inclusion criteria. Propensity score matching (PSM) was performed to adjust for clinically relevant covariates. Primary endpoints were clinically relevant (CR) POPF (grade B/C) and Clavien–Dindo (CD) grade ≥ 3 POPFs. Secondary outcomes included post-pancreatectomy hemorrhage (PPH), delayed gastric emptying (DGE), systemic complications, length of hospital stay, and mortality.
Results:
Overall, CR-POPF and CD grade ≥ 3 POPFs occurred in 21.3% and 8.0% of patients, respectively. Thirty-day and in-hospital mortality rates were 3.1% and 4.2%. After PSM, 368 patients (184 PG and 184 PJ) were analyzed. Grade B POPFs were more frequent following PJ than PG (24.5% vs. 15.8%, p < 0.001). Although CR-POPF and CD grade ≥ 3 POPFs were numerically higher in the PJ group, differences were not statistically significant. In contrast, DGE, PPH, and in-hospital mortality were significantly higher following PG (37.0% vs. 25.0%, p = 0.025; 16.3% vs. 8.7%, p = 0.025; and 7.6% vs. 2.7%, p = 0.049, respectively).
Conclusions
PG was associated with a lower incidence of grade B POPFs but higher rates of DGE, PPH, and in-hospital mortality.
4.One-hour OGTT reveals what conventional screening misses: A hidden prediabetes burden in Malaysia
Gerard Jason Mathews ; Seetha Devi Subramanian ; Nor Shaffinaz Yusoff Azmi Merican ; Shartiyah Ismail ; Joel Mathews ; Leng Ean Charis Kong ; Chong Hui Khaw ; Shubash Shander Ganapathy ; Arvinder-Singh HS
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):1-
Introduction:
Prediabetes or intermediate hyperglycemia (IH) represents a critical phase in the trajectory toward type 2 diabetes mellitus
(T2DM). Recent evidence from the International Diabetes Federation (IDF) suggests that 1-hour OGTT (1HOGTT) ≥8.6
mmol/L is a more sensitive biomarker for early beta-cell dysfunction, with enhanced detection of IH and future T2DM
risk. Conventional screening using hemoglobin A1c (HbA1c) or 2-Hour OGTT (2HOGTT) may delay identification
of prediabetes, narrowing the window for early intervention. This study evaluates 1HOGTT as a screening tool for
prediabetes among Malaysians.
Methodology:
This cross-sectional study enrolled adults without prior T2DM or prediabetes. Participants underwent 1HOGTT, 2HOGTT,
and HbA1c, classified as per the Malaysian Clinical Practice Guideline for T2DM (6th Edition) and IDF 2024 criteria.
Agreement between tests was assessed using McNemar’s test and Cohen’s kappa. Diagnostic accuracy was evaluated
via receiver operating characteristic (ROC) curve analysis. Cost-effectiveness was determined using reagent cost only.
Results:
The majority of the 310 participants were female (71.6%), Malay (87.1%), with average age of 40. The 1HOGTT identified
prediabetes in 21.6% (n = 67) compared to 17.1% (n = 53) by HbA1c and 2.6% (n = 8) by 2HOGTT. McNemar’s test confirmed
statistically significant discordance between 1HOGTT and 2HOGTT (chi-square = 53.397, p <0.001): 61 participants were
prediabetic by 1HOGTT but normal by 2HOGTT, versus only 2 in the reverse direction. No significant discordance was
found between 1HOGTT and HbA1c (chi-square = 2.817, p = 0.093). 1HOGTT demonstrated excellent discriminatory
ability against 2HOGTT (AUC = 0.908; 95% CI: 0.837–0.978), significantly outperforming HbA1c (AUC = 0.664; CI: 0.462–
0.867; DeLong p = 0.012). In a population-level cost analysis, 1HOGTT achieved lowest cost per prediabetes case detected
(RM 5.79) – approximately 8.3 times and 8.1 times more cost-effective than 2HOGTT (RM 48.08) and HbA1c (RM 46.78)
respectively.
Conclusion
1HOGTT identifies a significant proportion of individuals with prediabetes missed by 2HOGTT and HbA1c. Incorporating 1HOGTT enhances the detection of prediabetes, is cost-effective, and enables timely preventive measures in our
population with high diabetes burden.
Glucose Tolerance Test
;
Glycated Hemoglobin
;
Prediabetic State
5.Who succeeds in insulin deintensification? Real-world predictors and modifiable factors from primary care
Yee Theng Chong ; Mohammad Ashwad Muhd Zin ; Anisha K Nijar ; Nur Syellawathy Ahmad ; Mohd Khairi Mohd Noor ; Noorhazliza Abdul Patah ; Erleena Nur Hassan ; Izwan Effendy Ismai ; Najwa Aziz ; Min Chiee Leon ; Hui Ting Ng ; Khairatun Hisan Mohd Napiah ; Manothini A/P Perumal ; Shih Ling Selene Ng Shih Ling ; Ming Hui Liew ; Cha Chee Chong
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):4-
Introduction:
Insulin therapy is essential in the management of type 2 diabetes mellitus (T2DM), but is often associated with treatment
burden, hypoglycemia, and potential overtreatment. Insulin deintensification is increasingly recommended for
appropriately selected patients; however, there is limited real-world evidence to guide patient selection and to identify
modifiable factors that influence successful insulin deintensification. This study aimed to identify clinical predictors,
including modifiable factors, associated with successful insulin deintensification in a primary care setting.
Methodology:
A multicentre retrospective observational study was conducted across seven government primary care clinics in the Petaling
District. Adult patients with T2DM undergoing insulin deintensification were included. Successful insulin deintensification
was defined as maintenance or improvement of hemoglobin A1c following insulin discontinuation, dose reduction, or
reduction in injection frequency. Paired outcomes were analyzed using the Wilcoxon signed-rank test. Between-group
comparisons were performed using the Mann–Whitney U test and Chi-square or Fisher’s exact test. Multivariable logistic
regression was used to identify independent predictors of successful insulin deintensification.
Results:
A total of 261 patients were included. Glycemic control remained stable following insulin deintensification (p = 0.334).
Significant reductions in body weight (−0.41 kg, p = 0.012) and total daily insulin dose (23.1% reduction, p <0.001) were
observed. Univariate analysis did not demonstrate significant differences between groups. However, multivariable logistic
regression identified SGLT-2 inhibitor use (aOR 3.23, 95% CI 1.28–8.18, p = 0.013) and regular SMBG (aOR 2.00, 95% CI
1.05–3.81, p = 0.035) as independent predictors of successful insulin deintensification.
Conclusion
Insulin deintensification can be successfully implemented without compromising glycemic control. Identified predictors,
including modifiable factors such as SGLT-2 inhibitor use and SMBG, provide clinically actionable insights to guide patient
selection and treatment optimization. These findings challenge the traditional reluctance toward insulin deintensification
and support a more evidence-based and individualized approach in routine clinical practice.
Primary Health Care
;
Insulins
6.Effectiveness of a newly developed YouTube diabetes education: A multicentre randomized controlled trial
Phei Ching Lim ; Yi Woei Tang ; Jia Hui Cheng ; Leong Seng Tan ; Hooi Hoon Tan ; Chong Hui Khaw
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):7-
Introduction:
Adequate knowledge of diabetes is essential for effective self-management and glycemic control. Emerging trends in
digital platforms, video-based education offer a scalable and accessible approach to patient learning. However, evidence
on the effectiveness of validated YouTube-based diabetes education in the Malaysian population remains limited. We
aimed to evaluate the impact of a newly developed, tri-language YouTube diabetes education programme on clinical and
knowledge outcomes.
Methodology:
In this multicentre study, patients with diabetes mellitus were randomly assigned to intervention (YouTube-based education)
and control groups (standard care). The intervention consisted of newly developed and validated short educational videos
on YouTube regarding diabetes, complications and lifestyle changes, delivered weekly via WhatsApp over 9 weeks. Videos
were available in English, Malay and Chinese. The control group received standard care and counseling. Demographic
data, hemoglobin A1c (HbA1c), and knowledge scores were collected at baseline and 3 months post-intervention.
Results:
A total of 109 patients (62.4% female; mean age 53.2 years; mean diabetes duration 16.3 years) were enrolled in the
study, with similar baseline characteristics between groups. The intervention group demonstrated significantly greater
improvement in glycemic control compared to the control group (HbA1c: −1.22 ± 1.36% vs. −0.24 ± 1.05%; p <0.001). While
knowledge scores improved in both groups, the increase was significantly greater in the intervention group (2.66 vs. 0.80;
p = 0.001). Notably, improvement in knowledge score predicted HbA1c reduction (b = 0.091; 95% CI 0.01, 0.172; p = 0.028).
Conclusion
The tri-language YouTube-based diabetes education programme significantly improved both glycemic control and patients’
knowledge. This accessible, scalable video-based education represents an effective strategy to enhance diabetes selfmanagement, offering flexible, on-demand learning for diverse populations.
Social Media
;
Diabetes Mellitus
7.Effectiveness of diabetes education via mobile application (t-manis) in improving glycemic control among patients with Type 2 Diabetes
Tean Chooi Fun ; Khaw Chong Hui ; Ijaz binti Hallaj Rahmatullah ; Lim Phei Ching ; Lok Jin Lyn ; Song Li Bin ; Ye Xiaoyan
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):8-
Introduction:
Current education on diabetes self-management is time-consuming as it is conducted face-to-face. This study aimed to
evaluate the effectiveness of diabetes education via mobile application on hemoglobin A1c (HbA1c).
Methodology:
This was a double-blinded randomized controlled study conducted in the Department of Endocrinology, Hospital Pulau
Pinang and Hospital Raja Permaisuri Bainun. Participants were stratified randomized according to HbA1c to intervention
group (using T-Manis) and control group. The primary objective was to assess the difference in HbA1c between the groups.
Secondary objectives were to assess the difference in body weight, hospitalization related to diabetes, diabetes knowledge
between groups and usability and satisfaction of T-Manis. Laboratory investigations and questionnaires were conducted
at baseline, 4 months and 8 months.
Results:
A total of 112 participants were randomized into two groups each with 56 participants. Mean age was 51 years with similar
diabetes duration of 16 years in both groups. Participants comprised of 61.6% females with ethnic distribution of 49.1%
Malay, 30.4% Chinese, 19.6% Indian and 0.9% Siamese. Baseline HbA1c levels were comparable between intervention
and control groups (10.04% versus 9.91%; mean difference 0.13%; 95% CI −0.56 to 0.81; p = 0.718). At 4 months, HbA1c of
the intervention group demonstrated a significant reduction compared to the control group (8.93% versus 9.80%; mean
difference −0.86; 95% CI −1.59 to −0.14; p = 0.02). Sustained reduction of HbA1c in the intervention group was observed
at 8 months (mean difference −1.01; 95% CI −1.85 to −0.16; p = 0.02). Baseline body weight was 77 kg, with no betweengroup differences in body weight, hospitalization related to diabetes and diabetes knowledge scores, although diabetes
knowledge scores improved at 4 months in the intervention group. 89.3% of participants reported satisfaction with T-Manis
Conclusion
The T-Manis mobile application aided in significantly improving glycemic control with high user satisfaction, supporting
its feasibility as an adjunct to standard diabetes care.
Diabetes Mellitus, Type 2
;
Glycemic Control
;
Mobile Applications
;
Pangolins
8.Genetic differentiation of Anopheles sinensis (Diptera: Culicidae) based on COⅠ and ITS2 sequences
Gang WANG ; Chun-juan SHI ; Dan KONG ; Xuan ZHU ; Ji HE ; Ming-hui ZHAO ; Chong-cai WANG
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):90-95
Objective Exploring genetic differences among geographic strains of Anopheles sinensis in China. Methods Based on the mitochondrial cytochrome oxidase subunit I(COⅠ )and ribosomal the second internal transcribed spacer(ITS2), genetic distance analyses were conducted on An. sinensis samples collected nationwide. Results Genetic differentiation was observed within An. sinensis geographic strains, primarily reflected in the genetic distances of COⅠ sequences, with some distances between samples exceeding those between closely related species. However, ITS2 sequences showed relatively low levels of differentiation within geographic strains. No significant separation was observed, and gene exchange exhibited a random pattern among geographic strains. Conclusions Significant differences in genetic distance were observed among An. sinensis samples, along with evidence of interspecific continuity among sibling species. For the identification of closely related species using wild-collected Anopheles mosquitoes samples, reliance solely on commonly used barcodes such as COⅠ and ITS2 may be insufficient. Additional molecular markers, including COⅡ and D3 gene fragments, should also be considered. Caution should be exercised when using COⅠ genes to identify cryptic species, especially within Anopheles mosquitoes.
9.A single-center retrospective cohort study of rituximab combined with glucocorticoids in the treatment of high-risk primary membranous nephropathy
Keke ZHAO ; Hui LI ; Chong ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(8):1001-1008
Objective·To evaluate and compare the clinical efficacy and safety of rituximab(RTX)monotherapy and RTX combined with glucocorticoids in the treatment of high-risk primary membranous nephropathy(PMN).Methods·A retrospective cohort study was conducted to include 87 high-risk PMN patients who received RTX treatment in Xin Hua Hospital,Shanghai Jiao Tong University School of Medicine,between December 2018 and February 2024.Patients were divided into RTX monotherapy group and RTX combined with glucocorticoid group(combination therapy group)according to their treatment regimens.After adjusting for confounding factors using propensity score matching(PSM),intention-to-treat(ITT)and per-protocol(PP)analyses were performed to evaluate the primary efficacy outcomes.Results·A total of 58 patients were included after PSM,with 29 in each group.At 12 months after treatment,ITT analysis showed that the overall remission and complete remission(CR)of RTX monotherapy were 72.41%and 20.69%respectively,compared to 79.31%and 55.17%in the combination therapy group.The difference in CR rates between the two groups was statistically significant(P=0.007).The differences in serum creatinine,blood urea nitrogen,and estimated glomerular filtration rate(eGFR)were not statistically significant.However,the 24-hour urinary protein levels in the combination therapy group were significantly lower than those in the RTX monotherapy group(P=0.024).PP analysis showed that the CR rate of the combination therapy group was also significantly higher than that of the RTX monotherapy group(P=0.026).During follow-up,serum creatinine levels and eGFR remained stable in both groups.The incidence of adverse events was comparable between the two groups,with no statistically significant differences.Conclusion·Compared with RTX monotherapy,RTX combined with glucocorticoids significantly improves the CR rate in high-risk PMN patients without increasing the incidence of adverse events.This combination regimen appears to be an effective treatment strategy,though its long-term efficacy and safety warrant further confirmation through large-scale prospective studies.
10.A single-center retrospective cohort study of rituximab combined with glucocorticoids in the treatment of high-risk primary membranous nephropathy
Keke ZHAO ; Hui LI ; Chong ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(8):1001-1008
Objective·To evaluate and compare the clinical efficacy and safety of rituximab(RTX)monotherapy and RTX combined with glucocorticoids in the treatment of high-risk primary membranous nephropathy(PMN).Methods·A retrospective cohort study was conducted to include 87 high-risk PMN patients who received RTX treatment in Xin Hua Hospital,Shanghai Jiao Tong University School of Medicine,between December 2018 and February 2024.Patients were divided into RTX monotherapy group and RTX combined with glucocorticoid group(combination therapy group)according to their treatment regimens.After adjusting for confounding factors using propensity score matching(PSM),intention-to-treat(ITT)and per-protocol(PP)analyses were performed to evaluate the primary efficacy outcomes.Results·A total of 58 patients were included after PSM,with 29 in each group.At 12 months after treatment,ITT analysis showed that the overall remission and complete remission(CR)of RTX monotherapy were 72.41%and 20.69%respectively,compared to 79.31%and 55.17%in the combination therapy group.The difference in CR rates between the two groups was statistically significant(P=0.007).The differences in serum creatinine,blood urea nitrogen,and estimated glomerular filtration rate(eGFR)were not statistically significant.However,the 24-hour urinary protein levels in the combination therapy group were significantly lower than those in the RTX monotherapy group(P=0.024).PP analysis showed that the CR rate of the combination therapy group was also significantly higher than that of the RTX monotherapy group(P=0.026).During follow-up,serum creatinine levels and eGFR remained stable in both groups.The incidence of adverse events was comparable between the two groups,with no statistically significant differences.Conclusion·Compared with RTX monotherapy,RTX combined with glucocorticoids significantly improves the CR rate in high-risk PMN patients without increasing the incidence of adverse events.This combination regimen appears to be an effective treatment strategy,though its long-term efficacy and safety warrant further confirmation through large-scale prospective studies.


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