1.Gandouling Regulates PI3K/Akt/mTOR Autophagy Signaling Pathway via LncRNA H19 for Treatment of Wilson Disease Liver Fibrosis
Xin YIN ; Han WANG ; Daiping HUA ; Lanting SUN ; Yunyun XU ; Wenming YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):131-138
ObjectiveTo investigate the potential mechanisms and pathways through which Gandouling (GDL) exerts its effects in the treatment of liver fibrosis in Wilson disease. MethodsSixty male SD rats were randomly divided into six groups: the normal group, the model group, the GDL low-, medium-, and high-dose groups (0.24, 0.48, 0.96 g·kg-1), and the penicillamine group (90 mg·kg-1), with 10 rats in each group. A copper-loaded Wilson disease rat model was established by gavage administration of 300 mg·kg-1 copper sulfate pentahydrate to all groups except the normal group. Hematoxylin-eosin (HE) staining and Masson staining were used to observe the pathomorphological changes in the liver. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the levels of hyaluronic acid (HA), laminin (LN), procollagen type-Ⅲ peptide (PC-Ⅲ), and collagen type-Ⅳ (C-Ⅳ). Transmission electron microscopy was used to examine the ultrastructure of liver tissues. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the expression levels of liver tissues and serum exosomal long noncoding RNA H19 (LncRNA H19), phosphatidylinositol 3-kinase (PI3K), protein kinase B (Akt), and mammalian target of rapamycin (mTOR). Western blot analysis was performed to assess the expression levels of PI3K, Akt, mTOR, and their phosphorylated forms, as well as autophagy-related proteins Beclin1 and microtubule-associated protein 1 light chain 3B (LC3-Ⅱ/LC3-Ⅰ) in liver tissues. Beclin1 and LC3-Ⅱ fluorescence signal intensity was observed by immunofluorescence. ResultsCompared with the normal group, the model group exhibited inflammatory cell infiltration in hepatocytes, unclear nuclear boundaries with cell cleavage and necrosis, and collagen fiber deposition around confluent areas. The levels of HA, LN, PC-Ⅲ, and C-Ⅳ were significantly elevated (P<0.01). Transmission electron microscopy revealed an increased number of autophagic vesicles, with autophagic lysosomes exhibiting a single-layer membrane structure following degradation of most envelopes. Expression levels of Beclin1 and LC3-Ⅱ/LC3-Ⅰ were significantly increased (P<0.01), and fluorescence signals of Beclin1 and LC3-Ⅱ were markedly enhanced. The protein expression levels of PI3K, Akt, mTOR, p-PI3K, p-Akt, and p-mTOR were reduced (P<0.01), while LncRNA H19 expression was increased (P<0.01), and mRNA expression levels of PI3K, Akt, and mTOR were decreased (P<0.01). After treatment with GDL, the degree of liver fibrosis was significantly improved, with decreased levels of HA, LN, PC-Ⅲ, and C-Ⅳ. The number of autophagic vesicles was significantly reduced, and expression levels of Beclin1 and LC3-Ⅱ/LC3-Ⅰ proteins were lower (P<0.01). The fluorescence signals of Beclin1 and LC3-Ⅱ weakened dose-dependently. The protein levels of PI3K, Akt, mTOR, p-PI3K, p-Akt, and p-mTOR were elevated (P<0.01), while the expression level of LncRNA H19 was reduced (P<0.01). Furthermore, the mRNA expression levels of PI3K, Akt, and mTOR increased (P<0.05, P<0.01). ConclusionGDL may alleviate liver fibrosis and reduce liver injury by regulating the PI3K/Akt/mTOR autophagy signaling pathway via LncRNA H19.
2.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.
3.Study on the traditional Chinese medicine syndromes in 757 cases of children with hepatolenticular degeneration based on factor analysis and cluster analysis
Daiping HUA ; Han WANG ; Qiaoyu XUAN ; Lanting SUN ; Ling XIN ; Xin YIN ; Wenming YANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):303-311
Objective:
To explore the distribution of traditional Chinese medicine (TCM) syndromes in children with hepatolenticular degeneration (Wilson disease, WD) based on factor analysis and cluster analysis.
Methods:
From November 2018 to November 2023, general information (gender, age of admission, age of onset, course of disease, clinical staging, Western medicine clinical symptoms, and family history) and TCM four-examination informations (symptoms and signs) were retrospectively collected from 757 cases of children with WD at the First Affiliated Hospital of Anhui University of Chinese Medicine, and factor analysis and cluster analysis were used to investigate TCM syndromes in children with WD.
Results:
A total of 757 children with WD were included, of which 483 were male and 274 were female; the median age at admission was 12.58 years, the median age at onset was 8.33 years, and the median course of disease was 24.37 months; clinical typing result indicated 506 cases of hepatic type, 133 cases of brain type, 99 cases of mixed-type, and 19 cases of other type; 36.46% of the children had no clinical symptoms (elevated aminotransferases or abnormalities in copper biochemistry); a total of 177 cases had a definite family history, and 10 cases had a suspected family history. Forty-three TCM four-examination information were obtained, with the top 10 in descending order being feeling listless and weak, brown urine, slow action, inappetence, dim complexion, slurred speech, angular salivation, body weight loss, hand and foot tremors, and abdominal fullness. In children with WD, the syndrome element of disease location was primarily characterized by the liver, involving the spleen and kidney, and the syndrome elements of disease nature were characterized by dampness, heat, and yin deficiency. Based on factor analysis and cluster analysis, five TCM syndromes were derived, which were, in order, syndrome of dampness-heat accumulation (265 cases, 35.01%), syndrome of yin deficiency of the liver and kidney (202 cases, 26.68%), syndrome of liver hyperactivity with spleen deficiency (185 cases, 24.44%), syndrome of qi and blood deficiency (79 cases, 10.44%), and syndrome of yang deficiency of the spleen and kidney (26 cases, 3.43%).
Conclusion
The TCM syndromes of children with WD were primarily syndromes of dampness-heat accumulation, yin deficiency of the liver and kidney, and liver hyperactivity with spleen deficiency. The liver was the main disease location, and the disease nature was characterized by deficiency in origin and excess in superficiality, excess and deficiency mixed. These findings suggest that treating children with WD should be based on the liver while also considering the spleen and kidney.
4.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.
5.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.
6.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.
7.Correlations Between Traditional Chinese Medicine Syndromes and Lipid Metabolism in 341 Children with Wilson Disease
Han WANG ; Wenming YANG ; Daiping HUA ; Lanting SUN ; Qiaoyu XUAN ; Wei DONG ; Xin YIN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):140-146
ObjectiveTo study the correlations between traditional Chinese medicine (TCM) syndromes and lipid metabolism in children with Wilson disease (WD). MethodsClinical data and lipid metabolism indicators [total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein A1 (ApoA1), apolipoprotein B (ApoB), and lipoprotein a (Lpa)] were retrospectively collected from 341 children with WD. The clinical data were compared among WD children with different syndromes, and the correlations between TCM syndromes and lipid metabolism in children with WD were analyzed. Least absolute shrinkage and selection operator (LASSO) regression was used for variable screening, and unordered multinomial Logistic regression was employed to analyze the effects of lipid metabolism indicators on TCM syndromes. ResultsThe 341 children with WD included 121 (35.5%) children with the dampness-heat accumulation syndrome, 103 (30.2%) children with the liver-kidney Yin deficiency syndrome, 68 children with the combined phlegm and stasis syndrome, 29 children with the spleen-kidney Yang deficiency syndrome, and 20 children with the liver qi stagnation syndrome. The liver-kidney Yin deficiency syndrome, combined phlegm and stasis syndrome, and spleen-kidney Yang deficiency syndrome had correlations with the levels of lipid metabolism indicators (P<0.05). Lipid metabolism abnormalities occurred in 232 (68.0%) children, including hypertriglyceridemia (108), hypercholesterolemia (23), mixed hyperlipidemia (67), lipoprotein a-hyperlipoproteinemia (12), and hypo-HDL-cholesterolemia (22). The percentages of hypertriglyceridemia and hypo-HDL-cholesterolemia varied among children with different TCM syndromes (P<0.05). Correlations existed for the liver-kidney Yin deficiency syndrome with TG, TC, and HDL-C, the combined phlegm and stasis syndrome with TG, the spleen-kidney Yang deficiency syndrome with TG, TC, and LDL-C, and the liver Qi stagnation syndrome with TC and LDL-C (P<0.05, P<0.01). ConclusionThe TCM syndromes of children with WD are dominated by the dampness-heat accumulation syndrome and the liver-kidney Yin deficiency syndrome, and dyslipidemia in the children with WD is dominated by hypertriglyceridemia and mixed hyperlipidemia. There are different correlations between TCM syndromes and lipid metabolism indicators, among which TG, TC, LDL-C, and HDL-C could assist in identifying TCM syndromes in children with WD.
8.LncRNA Meg3 expression level is negatively correlated with liver fibrosis severity in patients with Wilson disease.
Daiping HUA ; Qiaoyu XUAN ; Lanting SUN ; Qingsheng YU ; Qin WANG ; Tao WANG ; Qiyan MA ; Wenming YANG ; Han WANG
Journal of Southern Medical University 2025;45(11):2365-2374
OBJECTIVES:
To investigate the expression of the long non-coding RNA maternally expressed gene 3 (LncRNA Meg3) in patients with the Wilson disease (WD) and its correlation with the severity of liver fibrosis and autophagy-related markers.
METHODS:
A total of 100 WD patients and 50 healthy individuals were enrolled from the First Affiliated Hospital of Anhui University of Chinese Medicine. Serum biomarkers, including platelet count, hyaluronic acid (HA), laminin (LN), type III procollagen N-terminal peptide (PIIINP), type IV collagen (C‑IV), alanine aminotransferase (ALT), and aspartate aminotransferase (AST), were measured, and the non-invasive indices APRI and FIB-4 were calculated. Peripheral blood levels of LncRNA Meg3, Beclin-1 and LC3B were detected using RT-qPCR, and liver stiffness (LSM) and shear wave velocity (SWV) were evaluated using two-dimensional shear wave elastography (2D-SWE). The liver tissues from 10 WD patients and 10 patients with hepatic hemangioma were examined using histochemical staining, transmission electron microscopy, and RT-qPCR.
RESULTS:
The expression level of LncRNA Meg3 was significantly lower, while the levels of AST, ALT, HA, LN, PIIINP, C‑IV, APRI, FIB-4, LSM and SWV were significantly higher in WD patients than in the healthy individuals (all P<0.01). LncRNA Meg3 was negatively correlated with LSM, SWV, APRI, FIB-4, Beclin-1 and LC3B (P<0.05). ROC analysis demonstrated that LncRNA Meg3 effectively discriminated >F4 stage fibrosis (AUC=0.902) with a sensitivity of 92.9% and a specificity of 83.7% at the optimal cut-off value, outperforming APRI (AUC=0.746) and FIB-4 (AUC=0.661). The liver tissues from WD patients exhibited characteristic histopathological changes and lowered expression of LncRNA Meg3, which was negatively correlated with Beclin-1 and LC3B expressions (P<0.05). Liver fibrosis staging (7 S4 cases and 3 S3 cases) was significantly associated with LSM and SWV levels (P<0.05).
CONCLUSIONS
The expression level of LncRNA Meg3 is significantly decreased in WD patients, which is negatively correlated with the severity of liver fibrosis and closely related to the level of autophagy.
Humans
;
RNA, Long Noncoding/metabolism*
;
Liver Cirrhosis/metabolism*
;
Adult
;
Female
;
Male
;
Hepatolenticular Degeneration/metabolism*
;
Case-Control Studies
;
Young Adult
;
Adolescent
;
Middle Aged
9.Wound immersion with weakly alkaline solution after debridement for refractory diabetic foot ulcer
Zhen LIU ; Lijie QIU ; Jie ZHAO ; Linjing ZHANG ; Xuecheng SUN ; Wenming LUO
Chinese Journal of General Practitioners 2024;23(6):661-664
A total of 44 patients with diabetic foot ulcers were treated in the Traumatic Orthopedics Department of Weifang People′s Hospital from January 2019 to December 2022. After debridement of foot ulcers the wounds were soaked in alkaline water of pH 7.5-8.0 (study group, n=22) or covered with vaseline gauze following iodophor disinfection (control group, n=22). The therapeutic effects of the two methods were compared. Four weeks after debridement, the wound area of study group was smaller than that of control group (3.15 (0, 7.60) vs. 6.75 (3.50, 9.32)cm 2, P<0.05), and the proportion of positive wound bacterial culture was lower than that of control group (40.9% (9/22) vs. 72.7% (16/22), P<0.05). At 12 weeks after surgery, there was no statistically significant difference in the wound healing rate between the two groups (72.7% (16/22) vs. 63.6% (14/22)), but the healing time of the study group was significantly shorter than that of the control group ((6.56±2.68) vs. (9.50±3.87) weeks, P<0.05). It is suggested that immersion of weak alkaline solution is helpful to promote wound healing for patients with diabetic foot ulcers after debridement surgery.
10.Comparison on image quality of insulinoma 5.0T and 3.0T non-contrast MRI
Huijia ZHAO ; Liang ZHU ; Ruichen GAO ; Bohui YIN ; Gan SUN ; Ke XUE ; Yuxin YANG ; Qiang XU ; Wenming WU ; Feng FENG
Chinese Journal of Medical Imaging Technology 2024;40(5):686-689
Objective To compare image quality of 5.0T and 3.0T non-contrast MRI for displaying insulinoma.Methods Twelve patients with insulinoma were prospectively enrolled,and non-contrast abdominal T1WI,T2WI as well as diffusion-weighted imaging(DWI)were acquired using 5.0T and 3.0T MR scanners,respectively.The subjective scores of image quality of each sequence of 5.0T and 3.0T MRI,also of tumor-pancreas parenchyma contrast scores were compared.The signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of insulinomas were observed,and the displayed rate of insulinoma by each sequence and overall MRI were compared.Results The subjective scores of 5.0T T1WI and DWI were higher than those of 3.0T T1WI and DWI(both P<0.05),but not significantly different between 5.0T and 3.0T T2WI(P=0.166).Furthermore,the tumor-pancreas parenchyma contrast score of 5.0T T1WI was higher than that of 3.0T T1WI(P=0.023),but not significantly different between 5.0T and 3.0T T2WI,nor between 5.0T and 3.0T DWI(both P>0.05).SNR of insulinomas on 5.0T T2WI were higher than on 3.0T T2WI(P=0.015),however,no significant difference of SNR was found between 5.0T and 3.0T T1WI,nor between 5.0T and 3.0T DWI(both P>0.05).CNR of insulinomas on all 5.0T MRI were not significantly different with those on 3.0T MRI(all P>0.05).The displayed rate of insulinoma on 5.0T T1WI,T2WI and DWI was 100%(12/12),66.67%(8/12)and 83.33%(10/12),respectively,on 3.0TT1WI,T2WI and DWI was 75.00%(9/12),58.33%(7/12),66.67%(8/12),respectively.The overall displayed rate of insulinoma on 5.0T and 3.0T MRI was 100%(12/12)and 83.33%(10/12),respectively.Conclusion Compared with 3.0T MRI,5.0T MRI was superior for displaying insulinoma,hence being helpful for diagnosis.


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