Abstract:
:The reproducibility of echo-Doppler measurements of portal vein and superior mesenteric artery blood flow has not been extensively studied. In the present study, two groups of subjects were examined to test inter- and intra-observer reproducibility. Each study population consisted of 15 nonportal hypertensive and 15 portal hypertensive subjects. With a standardized technique, the crosssectional area and velocity of blood flow in the portal vein and superior mesenteric artery were recorded in triplicate by skilled operators. The flow volume of each vessel was calculated by multiplying the cross-sectional area by the velocity of blood flow. The measurements were performed in a blind fashion over a 60 min period. The reproducibility of measurements was assessed by calculation of intraclass correlation coefficients and coefficients of variation. The intra-observer intraclass correlation coefficient was 0.77 for portal vein blood flow and 0.84 for superior mesenteric artery blood flow, suggesting good reproducibility. The intra-observer coefficient of variation was 11 and 9%, respectively. In contrast, the interobserver intraclass correlation coefficient was calculated to be 0.49 for portal blood vein blood flow and 0.57 for superior mesenteric artery blood flow, indicating fair reproducibility. In addition, the interobserver coefficients of variation were calculated to be 20 and 18%, respectively. These data suggest that intra-observer reproducibility in echo-Doppler measurements of portal vein and superior mesenteric artery blood flow is acceptable but inter-observer reproducibility is not. Examination by a single operator, rather than multiple operators, is therefore advisable. Even when measurements are performed by a single investigator an approximate variance of 10% in the measurement in a single subject should be expected.
journal_name
J Gastroenterol Hepatoljournal_title
Journal of gastroenterology and hepatologyauthors
Iwao T,Toyonaga A,Shigemori H,Oho K,Sumino M,Sato M,Tanikawa Kdoi
10.1111/j.1440-1746.1996.tb00008.xsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
40-6issue
1eissn
0815-9319issn
1440-1746journal_volume
11pub_type
杂志文章abstract:BACKGROUND AND AIM:Delayed gastric emptying occurs in more than 50% of chronic diabetic patients, and this is associated with significant impairments in quality of life. Traditional therapy for delayed gastric emptying has focused on supportive treatment, and there is no significant effective therapy. The effect of low...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.14368
更新日期:2019-04-01 00:00:00
abstract::Hepatitis B virus (HBV) affects more than 300 million individuals worldwide and in the United States approximately 1.25 million individuals are chronic carriers of HBV. The risk of becoming a chronic hepatitis B virus surface antigen carrier is dependent upon the mode of acquisition of infection as well as the age of ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章,评审
doi:10.1046/j.1440-1746.1999.01903.x
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND AND AIM:The technical performance of colonoscopy performed in deeply sedated patients differs from that performed without sedation or under minimal to moderate sedation. The aim of this study is to evaluate the factors affecting cecal intubation during colonoscopy performed under deep sedation. METHODS:A to...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2011.06795.x
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND AND AIM:Whether an early use of azathioprine (AZA) can alter the natural history of Crohn's disease (CD) remains debated. The aim of this study is to evaluate the impact of AZA on disease progression in a cohort of patients with early CD. METHODS:This longitudinal cohort study examined patients with early C...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.14000
更新日期:2018-03-01 00:00:00
abstract::Prostaglandin E1 (PGE1) has been reported to have, experimentally and clinically, a protective effect against liver damage. This effect may result from the relaxation of hepatic stellate cells, whose contraction induces vasoconstriction of hepatic sinusoids. However, prostaglandins are unstable and a new drug delivery...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND AND AIM:Endoscopic assessment of mucosal healing in ulcerative colitis (UC) is increasingly accepted as a measure of disease activity, therapeutic goal, and the key prognostic indicator. While regular endoscopy evaluates appearance of the mucosal surface, confocal laser endomicroscopy (CLE) enables in vivo v...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.12748
更新日期:2015-03-01 00:00:00
abstract::In order to achieve possible greater therapeutic efficacy, ranitidine 300 mg bid (R2) may be given rather than 300 mg qhs (R1), or nizatidine 300 mg bid (N2) may be given rather than 300 mg qhs (N1). A randomized placebo-controlled crossover study was performed in six healthy volunteers (four males, two females) who r...
journal_title:Journal of gastroenterology and hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1440-1746.1995.tb01345.x
更新日期:1995-09-01 00:00:00
abstract::The author visited China in 1981 and 1984 and obtained data comparing the incidence of duodenal ulcer in the rice eating districts of the south with the incidence in the wheat, maize and millet eating areas of the north. The evidence suggested a higher prevalence of duodenal ulcer in the rice eating areas than in the ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.1992.tb01012.x
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND AND AIM:Cholangiocarcinoma (CCA) is a mucin-producing cancer that has poor prognosis. Mucin 6 (MUC6) is a mucin that is normally co-expressed with the trefoil factor family-2 (TFF2) trefoil peptide. Both MUC6 and TFF2 have been reported to be involved in the progression of many types of cancers. The aim of t...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2008.05332.x
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND AND AIM:The most effective schedule of proton pump inhibitor (PPI) administration and the optimal timing of endoscopy in acute peptic ulcer bleeding remain uncertain. The aim of this study was to determine the most efficient PPI regimen and optimal timing of endoscopy. METHODS: Consecutive patients with su...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1440-1746.2012.07191.x
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:The efficiency of Helicobacter pylori eradication varies geographically, as do many parameters that might affect therapeutic efficiency. The aims of this study were to investigate the relationship between different genotypes of H. pylori and bacterium-related histopathological lesions in patients with duoden...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2007.04836.x
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND AND AIM:Hepatorenal syndrome (HRS) occurs in patients with advanced liver cirrhosis and has a poor outcome. The aim of the present study was to investigate which patients with HRS are likely to benefit from hemodialysis. METHODS:Data were collected prospectively from 30 patients with Child-Pugh C liver cirr...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2004.03471.x
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND AND AIM:The aim of this study is to confirm the efficacy of multipolar ablation with a new simulator system, three-dimensional (3-D) sim-Navigator, for patients with hepatocellular carcinoma by assessing relapse-free survival and shape of the ablation volume under clinical conditions. METHODS:All participan...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.13772
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND AND AIMS:Primary biliary cirrhosis (PBC) might be complicated by osteoporosis, whose etiology remains unknown but seems to be multifactorial. Prevalence rates of 30% to 60% for distal renal tubular acidosis (DRTA) have been reported in PBC patients, generally as incomplete DRTA. Although it is undisputed tha...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1400-1746.2004.03517.x
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND AND AIM:As an important cytokine that modulate the cell cycle, the involvement of transforming growth factor beta-1 (TGF-beta1) in carcinogenesis has been extensively studied for many years. Literatures have demonstrated that TGF-beta1 gene polymorphisms may alter the risk of various cancers, such as lung, p...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2008.05324.x
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND AND AIM:Controversies remain over the need for antiulcer treatment following 1-week eradication triple therapy for Helicobacter pylori-positive peptic ulcers. The usefulness of combination therapy for gastric ulcers in Japanese patients, which consists of H. pylori eradication followed by gastroprotective th...
journal_title:Journal of gastroenterology and hepatology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1440-1746.2005.04191.x
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND AND AIM:Reactive oxygen species produced by cytochrome P4502E1 (CYP2E1) are believed to play a role in pathophysiology of non-alcoholic fatty liver disease (NAFLD). However, little is known about the expression, protein content and activity of anti-oxidant enzymes and the role of inducible nitric oxide synth...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2009.06196.x
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:One-third of patients with exacerbations of ulcerative colitis (UC) require colectomy and 1% die. Although several studies have reported parameters associated with failure of medical treatment, studies using multivariate analysis of various predictors are scanty. METHODS:Demographic, clinical and laboratory...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2004.03486.x
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND AND AIM:Chronic inflammation is a major contributor to the initiation and progression of cancers. Lactobacillus helveticus NS8, which was originally separated from fermented koumiss, exhibited anti-inflammatory functions in our prior studies. In this study, NS8 was investigated for its potential to prevent c...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.14516
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND AND AIM:The aim of this study is to evaluate the epidemiology and impact of bacterial infections at admission in patients with acute decompensation (AD) of cirrhosis. METHODS:A cohort with AD of cirrhosis (European Association for the Study of the Liver criteria) admitted at a tertiary center was evaluated ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.14788
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND AND AIM:A significant number of autoantibodies have been reported in patients with non-alcoholic fatty liver disease (NAFLD) patients. In the present study, our aim was to assess the role of disease and cell-specific antibodies, namely anti-adipocyte antibodies (anti-AdAb) in patients with NAFLD and non-alco...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/jgh.12856
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND AND AIM:The aim of this study was to assess the gastric histopathology and serum gastrin-17 and pepsinogens profiles in patients with duodenal ulcer before and after Helicobacter pylori eradication in a population with a very high prevalence of H. pylori. At the same time we assessed the role of H. pylori de...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1440-1746.2007.04983.x
更新日期:2008-11-01 00:00:00
abstract::Gilbert's syndrome, an hereditary, chronic, mild, unconjugated hyperbilirubinaemia resulting from impaired hepatic bilirubin clearance and otherwise normal liver function, is arguably the most common syndrome known in humans. Recent molecular genetic studies have determined that the clinical phenotype can be described...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章,评审
doi:10.1046/j.1440-1746.1999.01984.x
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND AND AIM:It has been reported that immunological factors, such as the T-helper cell (Th)1/Th2 ratio, play a part in the mechanisms for the antihepatitis C virus (HCV) effect of the interferon (IFN) alpha-2b plus ribavirin combination therapy. By using flow cytometry, we examined this ratio during a 24-week co...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2008.05320.x
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND AND AIM:Some patients with chronic hepatitis C experience virologic relapse even after achieving an end of treatment response. Prolonged therapy can be effective for helping such high-risk patients to avoid relapse. We aimed to identify factors predictive of virologic relapse in chronic hepatitis C patients ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2009.06176.x
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND AND AIM:The present study aimed to evaluate the non-inferiority of low-volume oral sulfate solution (OSS) to 4-L polyethylene glycol (PEG) solutions administered in a split-dose regimen as bowel preparation for colonoscopy. The safety and tolerability were also compared between the two regimens. METHODS:In ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1111/jgh.13477
更新日期:2017-01-01 00:00:00
abstract::To clarify the contribution of peritoneal absorption of enzyme-rich exudate to the persistent elevation of serum amylase in bile-induced pancreatitis in dogs, serum amylase, lipase and immunoreactive trypsin (IRT) levels were measured during 24 h after induction of pancreatitis with and without peritoneal lavage. The ...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.1990.tb01429.x
更新日期:1990-09-01 00:00:00
abstract::In order to study the process of hepatocellular carcinoma (HCC) development, and to search for a clue to histologic diagnosis of well-differentiated HCC (wd-HCC), interstitial invasion in small HCC was evaluated. The study material consisted of 35 cases of HCC that were smaller than 3 cm that comprised 17 cases of wd-...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.1994.tb01569.x
更新日期:1994-11-01 00:00:00
abstract:AIMS:To investigate the relations between the formation of pigment gallstone and the function of the intestinal mucosal barrier, as well as the underlying mechanism. METHODS:Eighty guinea pigs were randomly divided into three groups in which they were respectively given normal diet, gallstone-causing diet, and gallsto...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2009.05842.x
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND AND AIM:Pepsinogen (PG) method is widely used to identify high risk groups of gastric cancer. It is very useful before Helicobacter pylori eradication, but after eradication the method becomes useless because the PGI, PGII, PGI/II ratios change. Therefore, we aimed to identify a high risk group for gastric c...
journal_title:Journal of gastroenterology and hepatology
pub_type: 杂志文章
doi:10.1111/j.1440-1746.2012.07285.x
更新日期:2013-01-01 00:00:00