Noninvasive tests

非侵入性测试
  • 文章类型: Journal Article
    背景:患有代偿性肝硬化的人从危险因素修改和预防计划中获得最大的益处,以减少肝脏代偿失调并改善早期肝癌的检测。基于血液的肝纤维化算法,如天冬氨酸转氨酶与血小板比率指数(APRI)和纤维化-4(FIB-4)指数是使用常规血液测试计算的,并且是有效的筛查测试,以排除慢性肝病患者的肝硬化。对进一步调查以确认肝硬化和与专科护理的联系的必要性进行分类。
    目的:这项初步研究旨在评估肝硬化人群筛查计划的影响(CAPRISE[肝硬化自动APRI和FIB-4筛查评估]),它使用自动APRI和FIB-4计算并报告常规血液检查,关于瞬时弹性成像的每月转诊率,肝硬化诊断,以及与专科护理的联系。
    方法:我们与维多利亚州的一家大型病理服务机构合作,澳大利亚,试点人群水平的肝硬化筛查方案,包括(1)自动计算和报告常规血液检查的APRI和FIB-4;(2)提供关于肝硬化的简要信息;和(3)瞬时弹性成像转诊的网络链接。APRI和FIB-4将根据参加单一病理服务的成年人的所有社区有序病理结果进行前瞻性计算。这个单一中心,prospective,单臂,研究前将比较瞬时弹性成像(FibroScan)转诊的月率,肝硬化诊断,以及干预后6个月至干预前6个月与专科护理相关的比例。
    结果:截至2024年1月,在本研究的干预前阶段,实验室共进行了120,972项测试。在这些测试中,排除了78,947(65.3%)测试,其余42,025(34.7%)对37,872名个人进行的测试符合纳入标准,可以计算APRI和FIB-4。在这42,025项测试中,1.3%(n=531)的446例患者APRI升高>1,2.3%(n=985)的816例患者FIB-4升高>2.67。将这些数据与FibroScan转诊和预约出勤联系正在进行中,并将在干预阶段继续进行,预计将于2024年2月1日开始。
    结论:我们将确定自动APRI和FIB-4报告瞬时弹性成像转诊率的可行性和有效性,肝硬化诊断,以及与专科护理的联系。
    背景:澳大利亚新西兰临床试验注册中心ACTRN12623000295640;https://tinyurl.com/58dv9ypp。
    DERR1-10.2196/56607。
    BACKGROUND: People with compensated cirrhosis receive the greatest benefit from risk factor modification and prevention programs to reduce liver decompensation and improve early liver cancer detection. Blood-based liver fibrosis algorithms such as the Aspartate Transaminase-to-Platelet Ratio Index (APRI) and Fibrosis-4 (FIB-4) index are calculated using routinely ordered blood tests and are effective screening tests to exclude cirrhosis in people with chronic liver disease, triaging the need for further investigations to confirm cirrhosis and linkage to specialist care.
    OBJECTIVE: This pilot study aims to evaluate the impact of a population screening program for liver cirrhosis (CAPRISE [Cirrhosis Automated APRI and FIB-4 Screening Evaluation]), which uses automated APRI and FIB-4 calculation and reporting on routinely ordered blood tests, on monthly rates of referral for transient elastography, cirrhosis diagnosis, and linkage to specialist care.
    METHODS: We have partnered with a large pathology service in Victoria, Australia, to pilot a population-level liver cirrhosis screening package, which comprises (1) automated calculation and reporting of APRI and FIB-4 on routinely ordered blood tests; (2) provision of brief information about liver cirrhosis; and (3) a web link for transient elastography referral. APRI and FIB-4 will be prospectively calculated on all community-ordered pathology results in adults attending a single pathology service. This single-center, prospective, single-arm, pre-post study will compare the monthly rates of transient elastography (FibroScan) referral, liver cirrhosis diagnosis, and the proportion linked to specialist care in the 6 months after intervention to the 6 months prior to the intervention.
    RESULTS: As of January 2024, in the preintervention phase of this study, a total of 120,972 tests were performed by the laboratory. Of these tests, 78,947 (65.3%) tests were excluded, with the remaining 42,025 (34.7%) tests on 37,872 individuals meeting inclusion criteria with APRI and FIB-4 being able to be calculated. Of these 42,025 tests, 1.3% (n=531) had elevated APRI>1 occurring in 446 individuals, and 2.3% (n=985) had elevated FIB-4>2.67 occurring in 816 individuals. Linking these data with FibroScan referral and appointment attendance is ongoing and will continue during the intervention phase, which is expected to commence on February 1, 2024.
    CONCLUSIONS: We will determine the feasibility and effectiveness of automated APRI and FIB-4 reporting on the monthly rate of transient elastography referrals, liver cirrhosis diagnosis, and linkage to specialist care.
    BACKGROUND: Australian New Zealand Clinical Trials Registry ACTRN12623000295640; https://tinyurl.com/58dv9ypp.
    UNASSIGNED: DERR1-10.2196/56607.
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  • 文章类型: Journal Article
    代谢相关脂肪变性肝病(MASLD),以前称为非酒精性脂肪性肝病(NAFLD),已成为全球慢性肝病的主要原因,并且越来越被认为与动脉粥样硬化性血管疾病相关,巩固其在传统心血管危险因素方面的地位。患有MASLD的个体表现出代谢综合征危险因素的组合,颈动脉粥样硬化,动脉僵硬度增加,暗示共同的发病机制。在这项研究中,我们的目的是探讨代谢综合征的肝脏受累和动脉僵硬度。我们招募了75例患者(30例男性和45例女性)在常规超声检查中患有肝脏脂肪变性,肝功能检查改变,或排除MASLD以外的肝脏病理后存在心脏代谢危险因素。临床评价,实验室测量,腹部和颈动脉超声,振动控制瞬态弹性成像(VCTE,Fibroscan),并进行动脉造影(张力检查)评估。通过肝脏脂肪变性指数(HSI)量化,诊断为MetS的26例患者肝脏受累明显更高,纤维化-4(FIB4),天冬氨酸转氨酶与血小板比值指数(APRI)类别,和VCTE测量,以及Agile3+和Agile4评分,这些评分使用临床和实验室参数的组合以及从VCTE获得的结果来反映晚期肝纤维化或肝硬化的可能性。通过动脉僵硬度测量和CIMT(颈动脉内膜中层厚度)量化,患有MetS的患者也表现出更明显的血管受累。我们应用了两步聚类算法来增强我们的分析,这使我们对代谢综合征要素与肝脂肪变性类型和动脉僵硬度之间的相互作用有了相关的了解。值得注意的是,在获得的三个集群中,显示肝脏脂肪变性和动脉僵硬度增加的集群也显示代谢综合征及其构成成分的患病率最高。结果具有重要的临床意义,提倡在怀疑MetS或MASLD时采用全面的诊断方法。
    Metabolic-associated steatotic liver disease (MASLD), previously termed non-alcoholic fatty liver disease (NAFLD), has emerged as a prominent global cause of chronic liver disease and is increasingly recognized as associated with atherosclerotic vascular illness, consolidating its position along traditional cardiovascular risk factors. Individuals with MASLD exhibit a combination of metabolic syndrome risk factors, carotid atherosclerosis, and increased arterial stiffness, hinting at shared pathogenesis. In this study, we aim to explore liver involvement and arterial stiffness within metabolic syndrome. We enrolled 75 patients (30 male and 45 female) with either liver steatosis on conventional ultrasound, altered liver function tests, or the presence of cardiometabolic risk factors after excluding liver pathology other than MASLD. Clinical evaluation, laboratory measurements, abdominal and carotid ultrasounds, vibration-controlled transient elastography (VCTE, Fibroscan), and assessment with the Arteriograph (Tensiomed) were performed. The 26 patients diagnosed with MetS had significantly higher liver involvement as quantified via the hepatic steatosis index (HSI), Fibrosis-4 (FIB4), aspartate aminotransferase to platelet ratio index (APRI) category, and VCTE measurements, as well as Agile 3+ and Agile 4 scores which use a combination of clinical and laboratory parameters together with results obtained from VCTE to reflect the probability of advanced liver fibrosis or cirrhosis. Patients with MetS also exhibited more pronounced vascular involvement as quantified via arterial stiffness measurements and CIMT (carotid intima-media thickness). We applied a two-step clustering algorithm to enhance our analysis, which gave us pertinent insight into the interplay between metabolic syndrome elements and typologies of hepatic steatosis and arterial stiffness degrees. Notably, of the three obtained clusters, the cluster showing increased levels of hepatic steatosis and arterial stiffness also exhibited the highest prevalence of metabolic syndrome and its constituting components. The results have significant clinical implications, advocating for a comprehensive diagnostic approach when MetS or MASLD is suspected.
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  • 文章类型: Journal Article
    大多数2型糖尿病(T2DM)患者的肝脏评估数据来自具有选择偏倚的回顾性队列。我们旨在评估可行性,结果,2型糖尿病患者的代谢功能障碍相关脂肪性肝病(MAFLD)严重程度和决定因素的门诊系统无创筛查的益处。
    我们进行了一项为期50周的横断面研究,纳入了糖尿病诊所的成年T2DM门诊患者。使用简单的生物临床评分应用基于指南的算法,如果适用,超声和/或弹性测量。
    纳入了两百十三例患者。平均年龄和体重指数为62岁和31kg/m2,29%的患者转氨酶水平异常。额外肝脏检查的接受率为92%。MAFLD的患病率,晚期纤维化和肝硬化为87%,11%,4%,分别。超过一半的晚期纤维化病例没有被怀疑,并且通过该筛查被发现。MAFLD与血糖控制不良相关,转氨酶升高,低HDL-C和没有外周动脉疾病。晚期纤维化与高腰围和过量饮酒有关,由于报告过度消费的患者数量很少,因此应谨慎解释。
    简单的生物临床工具允许对T2DM患者进行MAFLD严重程度的常规分诊,高风险患者对随后的非侵入性检查的依从性高。
    UNASSIGNED: Most data on liver assessment in type 2 diabetes mellitus (T2DM) patients are from retrospective cohorts with selection bias. We aimed at appraising the feasibility, results, and benefits of an outpatient systematic noninvasive screening for metabolic dysfunction-associated fatty liver disease (MAFLD) severity and determinants in T2DM patients.
    UNASSIGNED: We conducted a 50-week cross-sectional study enrolling adult T2DM outpatients from a diabetes clinic. An algorithm based on guidelines was applied using simple bioclinical scores and, if applicable, ultrasound and/or elastometry.
    UNASSIGNED: Two hundred and thirteen patients were included. Mean age and body mass index were 62 years and 31 kg/m2 and 29% of patients had abnormal transaminase levels. The acceptance rate of additional liver examinations was 92%. The prevalence of MAFLD, advanced fibrosis and cirrhosis was 87%, 11%, and 4%, respectively. More than half of the cases of advanced fibrosis had not been suspected and were detected by this screening. MAFLD was associated with poor glycemic control, elevated transaminases, low HDL-C and the absence of peripheral arterial disease. Advanced fibrosis was linked to high waist circumference and excessive alcohol consumption, which should be interpreted with caution owing to the small number of patients reporting excessive consumption.
    UNASSIGNED: Simple bioclinical tools allowed routine triage of T2DM patients for MAFLD severity, with high adherence of high-risk patients to subsequent noninvasive exams.
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  • 文章类型: Journal Article
    不符合典型治疗指征的慢性乙型肝炎病毒(HBV)感染患者应进行随访。本研究旨在评估肝纤维化进展(LFP)的风险,并评估肝纤维化的非侵入性测试(NIT)在监测这些患者的LFP中的作用。
    共有116例HBV复制活跃的患者,丙氨酸转氨酶(ALT)水平持续正常或最低限度升高,根据基线时的肝活检检查,没有或轻度肝坏死性炎症或纤维化,随后在随访期间进行重复的肝活检评估。LFP定义为METAVIR纤维化评分增加1分或更多。
    在116名患者中,40(34.5%)进展到至少一个纤维化阶段,16(13.8%)在27个月的中位随访间隔中进展至少两个纤维化阶段(IQR:12-36)。多变量分析证实了肝脏硬度测量(LSM)值增加与组织学上的LFP的显着关联(p=0.005)。LSM值的AUROC升高率显著高于血清NIT对LFP的预测(p<0.05)。LSM增加20%是预测LFP的最佳截止值。
    LFP在HBV复制活跃的患者中是不可忽视的,持续正常或最低限度升高的ALT,最初没有或轻微的肝坏死性炎症或纤维化。串行LSM测试在识别LFP方面比基于血清的NIT更可靠,比连续的肝活检更容易获得。
    UNASSIGNED: Chronic hepatitis B virus (HBV) infection patients who do not fulfill the typical treatment indications should be followed up. This study aimed to evaluate the risk of liver fibrosis progression (LFP) and assess the role of noninvasive tests (NITs) of liver fibrosis in monitoring LFP in these patients.
    UNASSIGNED: A total of 116 patients with active HBV replication, persistently normal or minimally elevated alanine aminotransferase (ALT) levels, and no or mild hepatic necroinflammation or fibrosis based on liver biopsy tests at baseline and followed by a repeated liver biopsy assessment during follow-up. LFP was defined as increase in METAVIR fibrosis score by 1 score or more.
    UNASSIGNED: Among 116 patients, 40 (34.5%) progressed by at least one fibrosis stage, 16 (13.8%) progressed by at least two fibrosis stages at a median follow-up interval of 27 months (IQR: 12-36). Multivariate analysis confirmed the significant association of an increase in liver stiffness measurement (LSM) value with LFP on histology (p =0.005). The AUROC of LSM value increase rate is significantly higher than that of serum-based NITs of liver fibrosis for the prediction of LFP (p < 0.05). An increase in LSM by 20% is the optimal cutoff for the prediction of LFP.
    UNASSIGNED: LFP is non-negligible in patients with active HBV replication, persistently normal or minimally elevated ALT, and initially no or minimal hepatic necroinflammation or fibrosis. Serial LSM tests would be more reliable in identifying LFP than serum-based NITs, and easier to obtain than serial liver biopsy tests.
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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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