Chronic hepatitis

慢性肝炎
  • 文章类型: Journal Article
    目的:在自身免疫性肝炎(AIH)患者的治疗中,对非侵入性成像生物标志物的临床需求尚未满足。在这项研究中,我们试图评估一个简单的未校正的诊断准确性,使用组织病理学作为参考标准,用于检测AIH患者的纤维化和炎症的非对比T1图。
    方法:超过3年,33例AIH患者使用多参数肝脏MRI方案进行了前瞻性研究,其中包括T1映射。在成像前3个月进行活检,并以纤维化(F0-F4)和炎症活性(PPA0-4)的标准化组织病理学评分作为参考。统计学分析包括独立t检验,Mann-WhitneyU-test,和ROC(接收器工作特性)分析。
    结果:晚期纤维化患者的T1映射值明显更高(F0-2vs.F3-4;p<0.015),显著纤维化(F0-1vs.F2-4;p<0.005),和显著的炎症活动(PPA0-1vs.PPA2-4p=0.048)。此外,该技术在检测显着(AUC0.856)和晚期纤维化(AUC0.835)方面表现出良好的诊断性能,以及显著的炎症活性(AUC0.763)。
    结论:快速,简单,未更正,与组织病理学相比,非对比T1定位序列在AIH患者中检测到明显的组织炎症和纤维化方面显示出令人满意的诊断性能,作为用于监测此类个体中的疾病活动的潜在的非侵入性成像生物标志物。
    OBJECTIVE: There is an unmet clinical need for non-invasive imaging biomarkers that could replace liver biopsy in the management of patients with autoimmune hepatitis (AIH). In this study, we sought to evaluate the diagnostic accuracy of a simple uncorrected, non-contrast T1 mapping for detecting fibrosis and inflammation in AIH patients using histopathology as a reference standard.
    METHODS: Over 3 years, 33 patients with AIH were prospectively studied using a multiparametric liver MRI protocol which included T1 mapping. Biopsies were performed up to 3 months before imaging, and a standardized histopathological score for fibrosis (F0-F4) and inflammatory activity (PPA0-4) was used as a reference. Statistical analysis included independent t test, Mann-Whitney U-test, and ROC (receiver operating characteristic) analysis.
    RESULTS: T1 mapping values were significantly higher in patients with advanced fibrosis (F0-2 vs. F3-4; p < 0.015), significant fibrosis (F0-1 vs. F2-4; p < 0.005), and significant inflammatory activity (PPA 0-1 vs. PPA 2-4 p = 0.048). Moreover, the technique demonstrated a good diagnostic performance in detecting significant (AUC 0.856) and advanced fibrosis (AUC 0.835), as well as significant inflammatory activity (AUC 0.763).
    CONCLUSIONS: A rapid, simple, uncorrected, non-contrast T1 mapping sequence showed satisfactory diagnostic performance in comparison with histopathology for detecting significant tissue inflammation and fibrosis in AIH patients, being a potential non-invasive imaging biomarker for monitoring disease activity in such individuals.
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  • 文章类型: Journal Article
    背景:纤维化的检测仍然是一个必要的乙型肝炎病毒(HBV)感染的患者的评价,但最准确的技术是侵入性的.目前的研究旨在开发一种用于纤维化评估的新型非侵入性生物标志物,但是没有人找到理想的人选.这项研究是一项荟萃分析,并结合了一项初步研究,以研究两种转移酶化合物与纤维化水平之间的联系。方法:我们研究了来自PUBMED的数据,WebofScience,还有Scopus,检索28896篇文章。按照PRISMA准则,最后我们分析了全文用英语写的文章。排除的项目是重复的,非文章条目,和无关的文件。我们评估了高水平和低水平纤维化患者之间丙氨酸氨基转移酶(ALT)和γ-谷氨酰转移酶(GGT)水平的变化。JoannaBriggs研究所的工具用于评估文章质量。我们使用R4.2.2进行统计。初步研究包括14名随机选择的不同纤维化水平的患者。结果:我们发现高纤维化和低纤维化患者之间的ALT和GGT水平存在显着差异。GGT/ALT比值与纤维化水平和纤维化-4(FIB-4)评分相关。结论:这项荟萃分析评估了慢性HBV纤维化患者的ALT和GGT水平。初步研究确定了罗马尼亚慢性患者队列中纤维化与GGT/ALT比值之间的第一个关联。这为以后的研讨带来了新的思绪。
    Background: The detection of fibrosis remains a necessity for the evaluation of hepatitis B virus (HBV)-infected patients, but the most accurate technique is invasive. Current studies aim to develop a novel noninvasive biomarker for fibrosis assessment, but no-one has found the ideal candidate. This study is a meta-analysis combined with a pilot study to investigate the connection between two transferase compounds and the levels of fibrosis. Methods: We studied data from PUBMED, Web of Science, and Scopus, retrieving 28,896 articles. Following PRISMA guidelines, we finally analyzed full-text articles written in English. The excluded items were duplicates, non-article entries, and irrelevant papers. We assessed the variations in alanine aminotransferase (ALT) and gamma-glutamyl transferase (GGT) levels between patients with high and low levels of fibrosis. Joanna Briggs Institute tools were used to assess article quality. We used R 4.2.2 for statistics. The pilot study included 14 randomly chosen patients with different fibrosis levels. Results: We found significant differences in ALT and GGT levels between patients with high and low fibrosis. The GGT/ALT ratio correlated with the levels of fibrosis and the fibrosis-4 (FIB-4) score. Conclusions: This meta-analysis assessed ALT and GGT levels in chronic HBV patients with fibrosis. The pilot study identified the first association between fibrosis and the GGT/ALT ratio in a Romanian cohort of chronic patients. This brings new ideas for future research.
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  • 文章类型: Journal Article
    吸烟是一些自身免疫性疾病的危险因素,但其与自身免疫性肝炎的关系尚不清楚。我们进行了一项基于人群的配对病例对照研究,以检查吸烟与英格兰自身免疫性肝炎风险之间的关系。
    来自临床实践研究数据链和关联的医院事件统计,2005-2017年,我们纳入了18岁后诊断为自身免疫性肝炎的987例病例,每例病例多达10个频率匹配的人群对照。我们使用多元逻辑回归来估计吸烟者与从不吸烟者中自身免疫性肝炎的比值比。适应性,年龄,一般实践,向一般执业注册的日历时间,和社会经济地位。
    与对照组相比,自身免疫性肝炎病例更可能吸烟(44%vs37%)。与从不吸烟者相比,吸烟者自身免疫性肝炎的风险增加(调整后的比值比=1.20,95%置信区间1.03-1.39)。
    吸烟与自身免疫性肝炎风险增加相关。
    UNASSIGNED: Smoking is a risk factor for some autoimmune diseases, but its association with autoimmune hepatitis remains unknown. We conducted a population-based matched case-control study to examine the association between tobacco smoking and the risk of autoimmune hepatitis in England.
    UNASSIGNED: From the Clinical Practice Research Datalink and linked Hospital Episode Statistics, 2005-2017, we included 987 cases diagnosed with autoimmune hepatitis after age 18 years and up to 10 frequency-matched population controls per case. We used multiple logistic regression to estimate the odds ratio of autoimmune hepatitis in ever-smokers vs never-smokers, adjusting for sex, age, general practice, calendar time of registration with the general practice, and socioeconomic status.
    UNASSIGNED: The autoimmune hepatitis cases were more likely to be ever-smokers than the controls (44% vs 37%). The ever-smokers had an increased risk of autoimmune hepatitis compared with the never-smokers (adjusted odds ratio = 1.20, 95% confidence interval 1.03-1.39).
    UNASSIGNED: Smoking was associated with an increased risk of autoimmune hepatitis.
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  • 文章类型: Journal Article
    尽管大多数患有酒精相关性肝病(ALD)的患者都有长期大量饮酒的病史,没有明确的阈值定义导致ALD的酒精消耗水平。我们旨在评估平均饮酒量与肝病风险之间的相关性,并确定临床上有意义的饮酒量的阈值。
    使用韩国国民健康保险数据库,我们确定了在2010年和2011年接受健康筛查的参与者,并对他们的数据进行了回顾性分析,直至2019年.要对提取的参与者进行诊断和分类,我们使用了国际疾病分类第10版和脂肪肝指数.主要结果是确定观察期间新诊断的肝脏相关疾病的发生率,并根据饮酒量比较非饮酒者和饮酒者之间肝脏相关疾病的发生率。
    共有53,006名患者入组并进行了中位8.4年的随访,在此期间发生了1,509例肝脏相关疾病。参与者分为五组:不饮酒(n=31,359),第一四分位数(n=5,242),第二四分位数(n=5,704),第三四分位数(n=5,337),和第四四分位数(n=5,364)。每个分位数(Q1,Q2,Q3和Q4)每周消耗的相应酒杯数标记为2.5±1.1标准单位(1个标准单位=8g酒精),5.4±1.9标准单位,11.5±3.3标准单位,和27.9±18.2标准单位,分别。与不饮酒者相比,发现Q1饮酒者患肝脏相关疾病的风险更高(调整后的风险比[AHR],1.09;95%CI,0.90-1.33),第二季度饮酒者(AHR,1.10;95%CI,0.91-1.32),Q3饮酒者(AHR,1.33;95%CI,1.11-1.59),和Q4饮酒者(AHR,1.47;95%CI,1.24-1.75)。
    我们报告说,我们的研究表明,饮酒超过11.5±3.3标准单位/周(92±26.4克/周)显着增加患肝脏相关疾病的风险。因此,作为降低患肝病风险的预防措施,酒精消费应限制在传统推荐水平之外。
    UNASSIGNED: Although most patients with alcohol-related liver disease (ALD) have a history of prolonged and heavy drinking, there is no clear threshold defining the level of alcohol consumption that leads to ALD. We aimed to evaluate the correlation between average alcohol consumption and the risk of liver disease and to determine the threshold for clinically significant alcohol consumption.
    UNASSIGNED: Using the Korean National Health Insurance database, we identified participants who underwent a health-screening program in 2010 and 2011 and retrospectively analyzed their data until 2019. To diagnose and categorize the extracted participants, we used the International Classification of Diseases version 10 and Fatty Liver Index. The primary outcome was to determine the incidence of newly diagnosed liver-related diseases during the observation period and compare the incidence of liver-related diseases among non-drinkers and drinkers based on the amount of alcohol consumption.
    UNASSIGNED: A total of 53,006 patients were enrolled and followed-up for a median of 8.4 years, during which 1,509 cases of liver-related diseases occurred. The participants were divided into five groups: no alcohol consumption (n = 31,359), 1st quartile (n = 5,242), 2nd quartile (n = 5,704), 3rd quartile (n = 5,337), and 4th quartile (n = 5,364). The corresponding number of glasses of alcohol consumed per week for each quantile (Q1, Q2, Q3, and Q4) was labeled 2.5 ± 1.1 standard units (1 standard unit = 8 g alcohol), 5.4 ± 1.9 standard units, 11.5 ± 3.3 standard units, and 27.9 ± 18.2 standard units, respectively. Compared with non-drinkers, the risk of liver-related disease was found to be higher in Q1 drinkers (adjusted hazard ratio [aHR], 1.09; 95% CI, 0.90-1.33), Q2 drinkers (aHR, 1. 10; 95% CI, 0.91-1.32), Q3 drinkers (aHR, 1.33; 95% CI, 1.11-1.59), and Q4 drinkers (aHR, 1.47; 95% CI, 1.24-1.75).
    UNASSIGNED: We report that our study has shown that drinking more than 11.5 ± 3.3 standard units/week (92 ± 26.4 g/week) significantly increases the risk of developing liver-related diseases. Therefore, as a preventive measure to reduce the risk of developing liver disease, alcohol consumption should be limited beyond traditionally recommended levels.
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  • 文章类型: Meta-Analysis
    肝癌是由遗传因素之间复杂的相互作用引起的,病毒感染,酗酒,和代谢性疾病。我们在台湾进行了全基因组关联研究和多基因风险评分(PRS)模型,采用非特异性病因方法,确定肝细胞癌(HCC)的遗传危险因素。我们对2836例HCC病例和134,549例对照的分析揭示了13个新的相关基因座,如FAM66C基因,非编码基因,肝纤维化相关基因,代谢相关基因,和肝癌相关通路基因。我们将英国生物银行和日本数据库的结果纳入我们的研究进行荟萃分析,以验证我们的发现。我们还确定了影响病毒感染和HCC进展的主要组织相容性复合体的特定亚型。使用这些数据,我们开发了一个PRS来预测普通人群的HCC风险,肝癌患者,和受HCC影响的家庭。PRS在患有多个HCC和其他癌症病例的家庭中显示出更高的风险评分。这项研究提出了一种新的肝癌风险分析方法,确定与HCC发展相关的七个新基因,并介绍了一种可重复的风险评估PRS模型。
    Liver cancer is caused by complex interactions among genetic factors, viral infection, alcohol abuse, and metabolic diseases. We conducted a genome-wide association study and polygenic risk score (PRS) model in Taiwan, employing a nonspecific etiology approach, to identify genetic risk factors for hepatocellular carcinoma (HCC). Our analysis of 2836 HCC cases and 134,549 controls revealed 13 novel associated loci such as the FAM66C gene, noncoding genes, liver-fibrosis-related genes, metabolism-related genes, and HCC-related pathway genes. We incorporated the results from the UK Biobank and Japanese database into our study for meta-analysis to validate our findings. We also identified specific subtypes of the major histocompatibility complex that influence both viral infection and HCC progression. Using this data, we developed a PRS to predict HCC risk in the general population, patients with HCC, and HCC-affected families. The PRS demonstrated higher risk scores in families with multiple HCCs and other cancer cases. This study presents a novel approach to HCC risk analysis, identifies seven new genes associated with HCC development, and introduces a reproducible PRS model for risk assessment.
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  • 文章类型: Meta-Analysis
    目标:受教育程度是一项重要的社会经济指标,对生活方式行为和代谢健康具有广泛的影响。我们旨在探讨教育对慢性肝病的因果效应和潜在的介导途径。
    方法:我们应用单变量孟德尔随机化(MR)来评估受教育程度与非酒精性脂肪性肝病(NAFLD)之间的因果关系(病例/对照:FinnGen的1578/307576;英国生物库的1664/400055),病毒性肝炎(1772/307382;1215/403316),肝肿大(199/222728;297/400055),慢性肝炎(699/301014;277/403316),肝硬化(1362/301014;114/400055)和肝癌(518/308636;344/393372)使用FinnGen研究和英国生物库的全基因组关联研究的汇总统计,分别。我们使用两步MR来评估潜在的介体及其在关联中的中介比例。
    结果:来自FinnGen和UKBiobank的逆方差加权MR估计的荟萃分析表明,遗传预测的1-SD(4.2年)高等教育与NAFLD风险降低有因果关系(OR:0.48;95CI:0.37-0.62),病毒性肝炎(0.54;0.42-0.69)和慢性肝炎(0.50;0.32-0.79),但不是肝肿大,肝硬化和肝癌。九,在与NAFLD的教育关联中,34个可改变因素中有两个和三个被确定为因果中介,病毒性肝炎和慢性肝炎,分别,包括六个肥胖性状(中介比例:16.5%-32.0%),重度抑郁症(16.9%),两个糖代谢相关性状(2.2%-15.8%)和两个脂类(9.9%-12.1%)。
    结论:我们的研究结果支持教育对慢性肝病的因果保护作用,并概述了中介途径,以告知预防和干预策略,以减轻肝病的负担。特别是对于受教育程度较低的人。
    Educational attainment is an essential socio-economic indicator with broad implications for lifestyle behaviour and metabolic health. We aimed to investigate the causal effect of education on chronic liver diseases and the potential mediating pathways.
    We applied univariable Mendelian randomization (MR) to assess the causal associations between educational attainment and non-alcoholic fatty liver disease (NAFLD) (cases/controls: 1578/307 576 in FinnGen; 1664/400 055 in UK Biobank), viral hepatitis (1772/307 382; 1215/403 316), hepatomegaly (199/222 728; 297/400 055), chronic hepatitis (699/301 014; 277/403 316), cirrhosis (1362/301 014; 114/400 055) and liver cancer (518/308 636; 344/393 372) using summary statistics of genome-wide association studies from the FinnGen Study and the UK Biobank, respectively. We used two-step MR to evaluate potential mediators and their mediation proportions in the association.
    Meta-analysis of inverse variance weighted MR estimates from FinnGen and UK Biobank showed that genetically predicted 1-SD (4.2 years) higher education was causally associated with decreased risks of NAFLD (OR: 0.48; 95%CI: 0.37-0.62), viral hepatitis (0.54; 0.42-0.69) and chronic hepatitis (0.50; 0.32-0.79), but not hepatomegaly, cirrhosis and liver cancer. Nine, two and three out of 34 modifiable factors were identified as causal mediators in the associations of education with NAFLD, viral hepatitis and chronic hepatitis, respectively, including six adiposity traits (mediation proportion: 16.5%-32.0%), major depression (16.9%), two glucose metabolism-related traits (2.2%-15.8%) and two lipids (9.9%-12.1%).
    Our findings supported the causal protective effects of education on chronic liver diseases and outlined mediating pathways to inform prevention and intervention strategies to reduce the burden of liver diseases, especially for individuals with lower education.
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  • 文章类型: Randomized Controlled Trial
    目的:我们提供了JADE2期研究的最终分析结果(ClinicalTrials.gov标识符:NCT03361956)。
    方法:232例慢性乙型肝炎(CHB)患者在研究开始时(NCT)未接受治疗或病毒学抑制,随机接受75mg(第1部分)或250mg(第2部分)JNJ-56136379,一种乙型肝炎病毒(HBV)衣壳组装调节剂,每天一次或安慰剂与核苷(酸)类似物(NA)(富马酸替诺福韦酯/恩替卡韦)或JNJ-56136379单独(仅NCT)≥24周和≤48周。
    结果:在NCT乙型肝炎e抗原(HBeAg)阳性的患者中,JNJ-5613637975毫克+NA和250毫克+NA显示有限的平均(SE)乙型肝炎表面抗原(HBsAg)下降(0.14(0.10)和0.41(0.15),分别)从第24周的基线(主要终点;安慰剂+NA:0.25(0.11)log10国际单位(IU)/mL)。在NCTHBeAg阳性的患者中,平均(SE)HBVDNA下降在第24周为5.53(0.23)和5.88(0.34)对于JNJ-5613637975毫克+NA和250毫克+NA,分别,与安慰剂+NA的5.21(0.42)log10IU/mL相比。在NCT患者中,平均(SE)HBVRNA下降2.96(0.23)和3.15(0.33)与1.33(0.32)log10拷贝/mL,分别。HBsAg下降的患者有HBeAg和乙型肝炎核心相关抗原(HBcrAg)下降和一些早期治疗分离的丙氨酸转氨酶耀斑。病毒突破发生在JNJ-56136379单药治疗与新出现的抗性变体T33N,但不是JNJ-56136379+NA。在第24周之后的JNJ-56136379治疗对病毒标记物具有一般较小的额外作用。没有发生与研究治疗相关的严重不良事件或实验室参数的临床显着变化。
    结论:在非肝硬化CHB患者中,JNJ-56136379+NA显示HBVDNA和HBVRNA明显减少,有限的HBsAg或HBeAg下降的患者是NCTHBeAg阳性,并且耐受性良好,但没有观察到JNJ-56136379相对于NA的疗效的明显获益.
    We present the final analysis results of the phase 2 JADE study (ClinicalTrials.gov Identifier: NCT03361956).
    232 patients with chronic hepatitis B (CHB) not currently treated at study start (NCT) at study start or virologically suppressed were randomised to receive 75 mg (part 1) or 250 mg (part 2) JNJ-56136379, a hepatitis B virus (HBV)-capsid assembly modulator, one time per day or placebo with nucleos(t)ide analogue (NA) (tenofovir disoproxil fumarate/entecavir) or JNJ-56136379 alone (NCT-only) for ≥24 and ≤48 weeks.
    In patients who are NCT hepatitis B e-antigen (HBeAg) positive, JNJ-56136379 75 mg+NA and 250 mg+NA showed limited mean (SE) hepatitis B surface antigen (HBsAg) declines (0.14 (0.10) and 0.41 (0.15), respectively) from baseline at Week 24 (primary endpoint; placebo+NA: 0.25 (0.11) log10 international unit (IU)/mL).In patients who are NCT HBeAg positive, mean (SE) HBV DNA declines at Week 24 were 5.53 (0.23) and 5.88 (0.34) for JNJ-56136379 75 mg+NA and 250 mg+NA, respectively, versus 5.21 (0.42) log10 IU/mL for placebo+NA. In NCT patients, mean (SE) HBV RNA declines were 2.96 (0.23) and 3.15 (0.33) versus 1.33 (0.32) log10 copies/mL, respectively.Patients with HBsAg declines had HBeAg and hepatitis B core-related antigen (HBcrAg) declines and some early on-treatment isolated alanine aminotransferase flares. Viral breakthrough occurred with JNJ-56136379 monotherapy with the emerging resistant-variant T33N, but not with JNJ-56136379+NA. JNJ-56136379 treatment beyond Week 24 had a generally small additional effect on viral markers.No study treatment-related serious adverse events or clinically significant changes in laboratory parameters occurred.
    In patients with non-cirrhotic CHB, JNJ-56136379+NA showed pronounced reductions in HBV DNA and HBV RNA, limited HBsAg or HBeAg declines in patients who are NCT HBeAg positive, and was well tolerated, but no clear benefit with regards to efficacy of JNJ-56136379 over NA was observed.
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  • 文章类型: Journal Article
    未经证实:流行病学数据表明,超过50%的丙型肝炎病毒(HCV)患者治疗失败。该研究的目的是强调治疗第12周时丙型肝炎病毒抗原(HCVAg)的血清阳性率。
    未经批准:在一项横断面研究中,我们于2020年12月至2022年3月在雅温得总医院(HGY)和雅温得大学教学医院(UTHY)招募了患有慢性肝病和肝细胞癌(HCC)的参与者.从每个同意的参与者中采集5毫升血液样品,然后通过酶联免疫测定(ELISA)对HCVAg进行定性搜索。使用SPSS25.0版软件进行结果分析。
    未经评估:在入选研究的192名参与者中,只有92名(47,9%)参与者在12周的治疗,包括69名(75%)通过RDT对丙型肝炎病毒抗体(HCVAb)呈阳性的参与者。在这些参与者中,44例(47.8%)参与者通过ELISA检测HCVAg阳性,分别为19/37(51.3%),14/19(73.6%),11/13(84.6%)慢性肝炎(HC),肝硬化,和HCC(P<0.0001)。
    UNASSIGNED:我们的结果显示,患者在治疗的第12周时HCVAg的患病率很高,这预示着治疗失败,并呼吁在我们的背景下制定新的管理策略以防止HCV治疗失败。
    UNASSIGNED: epidemiological data suggests that more than 50% of hepatitis C virus (HCV) patients fail treatment. The objective of the study was to highlight the seroprevalence of hepatitis C virus antigen (HCV Ag) at the 12th week of treatment.
    UNASSIGNED: during a cross-sectional study, participants with chronic liver disease and hepatocellular carcinoma (HCC) were recruited between December 2020 and March 2022 at the Yaoundé General Hospital (HGY) and the University Teaching Hospital of Yaounde (UTHY). Five millilitres of blood samples were taken from each consenting participant and then a qualitative search for HCV Ag by Enzyme-Linked Immuno Assay (ELISA) was performed. Analysis of the results was performed using SPSS Version 25.0 software.
    UNASSIGNED: out of the 192 participants selected for the study, only 92 (47,9%) participants were at 12 weeks of treatment, including 69 (75%) participants positive for the hepatitis C virus antibody (HCV Ab) by RDT. Of these participants, 44 (47.8%) participants were positive for HCV Ag by ELISA, respectively 19/37 (51.3%), 14/19 (73.6%), 11/13 (84.6%) with chronic hepatitis (HC), Cirrhosis, and HCC (P<0.0001).
    UNASSIGNED: our results showed a high prevalence of HCV Ag in patients at their 12th week of treatment which predicts treatment failure and calls for public policy to develop new management strategies to prevent HCV treatment failure in our context.
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  • 文章类型: Journal Article
    目的:SmartExam是一种与FibroScan兼容的新颖计算方法,该方法使用称为SmartDepth的软件和连续控制的衰减参数测量来评估肝纤维化和脂肪变性。这项回顾性研究比较了常规和配备SmartExam的FibroScan用于肝脏硬度测量(LSM)的诊断准确性。
    方法:使用常规和配备SmartExam的FibroScan以及磁共振弹性成像(MRE)和磁共振成像等参考方法测量167例患者的肝脏硬度和相关的受控衰减参数基于质子密度脂肪分数(MRI-PDFF)的测量来评估其诊断性能。对于所有FibroScan检查,基于探针到肝脏囊的距离选择M或XL探针。
    结果:从常规和配备SmartExam的FibroScan计算的肝脏硬度和受控衰减参数(CAP)相关系数分别为0.97和0.82。使用MRE/MRI-PDFF作为参考,并使用DeLong测试进行分析,通过常规和配备SmartExam的FibroScan测量的CAP的LSM和接收器工作特性曲线下面积没有显着差异。然而,配备SmartExam的FibroScan测量时间(33.6s)是传统FibroScan测量时间(23.2s)的1.4倍。
    结论:SmartExam具有与常规FibroScan相当的高诊断性能。因为常规和配备SmartExam的FibroScan的结果密切相关,它可以被认为在临床实践中用于评估肝脏的纤维化阶段和脂肪变性等级,与传统的FibroScan相比,可变性较小,但测量时间较长。
    OBJECTIVE: SmartExam is a novel computational method compatible with FibroScan that uses a software called SmartDepth and continuous controlled attenuation parameter measurements to evaluate liver fibrosis and steatosis. This retrospective study compared the diagnostic accuracy of conventional and SmartExam-equipped FibroScan for liver stiffness measurement (LSM).
    METHODS: The liver stiffness and the associated controlled attenuation parameters of 167 patients were measured using conventional and SmartExam-Equipped FibroScan as well as reference methods like magnetic resonance elastography (MRE) and magnetic resonance imaging-based proton density fat fraction (MRI-PDFF) measurements to assess its diagnostic performance. M or XL probes were selected based on the probe-to-liver capsule distance for all FibroScan examinations.
    RESULTS: The liver stiffness and controlled attenuation parameter (CAP) correlation coefficients calculated from conventional and SmartExam-equipped FibroScan were 0.97 and 0.82, respectively. Using MRE/MRI-PDFF as a reference and the DeLong test for analysis, LSM and the area under the receiver operating characteristic curve for CAP measured by conventional and SmartExam-equipped FibroScan showed no significant difference. However, the SmartExam-equipped FibroScan measurement (33.6 s) took 1.4 times longer than conventional FibroScan (23.2 s).
    CONCLUSIONS: SmartExam has a high diagnostic performance comparable with that of conventional FibroScan. Because the results of the conventional and SmartExam-equipped FibroScan were strongly correlated, it can be considered useful for assessing the fibrosis stage and steatosis grade of the liver in clinical practice, with less variability but little longer measurement time compared with the conventional FibroScan.
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  • 文章类型: Journal Article
    未经批准:如今,慢性病毒性肝炎是最常见的病理实体之一,全世界有超过4亿例病例,诊断和治疗费用高,晚期出现严重并发症,年死亡率约为100万。这项研究的目的是鉴定无创超声标志物,以便在无症状的慢性肝炎中建立早期诊断。
    UNASSIGNED:我们在一项前瞻性研究中纳入了111例诊断为无症状慢性肝炎的患者:53例乙型肝炎(A组)和58例丙型肝炎(B组)。所有患者均接受超声检查;我们评估了左肝叶的尺寸,肝右叶,尾状叶,门静脉,肝脏硬度,肝门淋巴结的存在,腺病的数量和尺寸。
    UNASSIGNED:在A组中超过16%的患者和B组中超过20%的患者中发现了肝脏大小增加。我们在A组中3.77%的患者和B组中3.45%的患者中发现了门静脉扩大,在A组中64.16%和B组中82.76%的患者中发现了腺病。我们在无症状患者中获得了超过0.9的NPV,在检测慢性乙型肝炎中为0.5的PPV,在检测慢性丙型肝炎中为0.9的PPV,慢性乙型肝炎和丙型肝炎的特异性为0.98,B组的敏感性为0.81,A组的敏感性为0.64。
    未经证实:肺门肝腺病的存在是检测无症状慢性病毒性肝炎的重要标志物。
    UNASSIGNED: Nowadays, chronic viral hepatitis represents one of the most common pathological entities with over 400 million cases worldwide, with high diagnosis and treatment cost, severe complications in late stages and an annual death-rate around 1 million. The purpose of this study was to identify noninvasive ultrasound markers in order to establish an early diagnosis in asymptomatic chronic hepatitis.
    UNASSIGNED: We enrolled in a prospective study 111 patients diagnosed with asymptomatic chronic hepatitis: 53 patients with hepatitis B (group A) and 58 patients with hepatitis C (group B). All patients underwent ultrasound exam; we evaluated the dimensions of the left hepatic lobe, right hepatic lobe, caudate lobe, portal vein, liver stiffness, presence of hepatic hilar lymph nodes, number and dimensions of the adenopathies.
    UNASSIGNED: Increased liver size was found in over 16% of patients in group A and over 20% of patients in group B. We registered an enlarged portal vein in 3.77% of patients in group A and in 3.45% of patients in group B. Adenopathies were found in 64.16% of group A and 82.76% of group B. Using long adenopathic axis as marker, we obtained a NPV over 0.9, PPV of 0.5 in the detection of chronic hepatitis B and a PPV of 0.9 in the detection of chronic hepatitis C in asymptomatic patients, a specificity of 0.98 for both chronic hepatitis B and C, a sensitivity of 0.81 for group B and 0.64 for group A.
    UNASSIGNED: The presence of hilar liver adenopathies represents an important marker in detecting asymptomatic chronic viral hepatitis.
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