MR and ultrasound in screening of patients with suspected biliary tract disease

Hakansson, K; Ekberg, Olle; Håkansson, Hans-Olof; Leander, Peter

doi:10.1034/j.1600-0455.2002.430116.x

Cited by 17 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent years have witnessed a rapid and continuous evolution in the diagnosis of biliary obstructive disease. Totraditional methodologies, such as US (ultrasonography) ,)CT (computed tomography), ERCP (endoscopic retrograde cholangiopancreatography) and PTC (percutaneous transhepatic cholangiography), there have been added MRCP (magnetic resonance cholagiopancreatography) and CCTcholangio computed tomography), which have prompted a comprehensive review of the whole diagnostic imaging procedure [5][6][7][8][9][10][11][12] .Ultrasound has been always considered the first choice technique in the study of biliary obstructive disease, due to its accessibility, speed, ease of performance and low cost [13,14] . Thishas been even more so in recent years, following the technological evolution of US equipment which, thanks to Tissue Harmonic Imaging (THI), gives better visualization of fluid-filled structures (such as the biliary structures), reduced artifacts, and enhanced contrast resolution [15,16] .ERCP has been considered the gold standard of biliary structureimaging since its introduction in 1970, and is currentlymaintaining its therapeutic application.…”

Section: Introductionmentioning

confidence: 99%

The role of ultrasound in diagnosis of obstructive Jaundice causes in Sudanese population

Gamersddin¹

2013

IOSR-JNHS

View full text Add to dashboard Cite

This study was done to assess the role of ultrasound in diagnosis ofobstructive jaundicecauses. The study took place in different Khartoum clinical centers and hospitals in the period between Jan 2010 -March 2011.A total of 102 patients were examined using ultrasound(U/S), 3.5 MHz probe, Fukuda, Toshiba, Sheimadzu and Aloka Machine. The population of the study(jaundiced patients)had been selected by the technique of non-probability sampling and full history was taken.The causes of obstructive jaundice were detected as stone 19%., mass 51%,Sensitivity of ultrasound in determining the level of obstruction was 96% and extra hepatic obstruction was 67%. The prevalence ofobstructive jaundice was found to behigher in females (58%) than male (42%).Ascites and liver cirrhosis were found in 24% of the patients, hepatitis and hepatomegaly represent 33%.The study confirmed that obstructive jaundice represent 89.2% of the patients and non-obstructive jaundice was 10.8%.The study recommended to measure bile duct, liver size, portal vein, spleen and compare the liver echo texture with the adjacent organs .Scanning should be performedfor liver metastasis and also detect stone in the common bile duct.

show abstract

Section: Introductionmentioning

confidence: 99%

The role of ultrasound in diagnosis of obstructive Jaundice causes in Sudanese population

Gamersddin¹

2013

IOSR-JNHS

View full text Add to dashboard Cite

show abstract

“…The mean age of the study population was 45.6 years. Håkansson et al 5 studied 85 patients, out of which 43 (51%) were males and 42 (49%) were females. Ferrari et al 6 studied 131 patients, and the distribution of male patients was 47% while that of females was 53%.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Hepatobiliary and Pancreatic Pathologies on Sonography and Magnetic Resonance Cholangiopancreatography

Singh¹,

Basappa²,

Singh³

2019

AMEI's Current Trends in Diagnosis &Amp; Treatment

View full text Add to dashboard Cite

Background: The pancreaticobiliary pathologies are one of the most common routinely encountered disorders. The evaluation of a suspected pancreaticobiliary pathology is a common radiological problem and is routinely diagnosed by a variety of imaging modalities including ultrasonography (USG), computed radiography, and magnetic resonance cholangiopancreatography (MRCP). Objectives: To study and compare the radiological features in pancreatic and biliary system pathology using USG and MRCP, and to compare the findings with histopathology results wherever available. Materials and methods: The prospective study was carried out on 50 patients with suspected pancreaticobiliary pathologies who underwent both USG and MRCP. Results: In our study of 50 cases, there were 34 (68%) female cases and 16 (32%) male cases with hepatobiliary pathologies. The female to male ratio was 2.1:1. The maximum number of 15 (30%) cases were between the age range of 41 years and 50 years. The dilatation of the biliary system was seen in 40 (80%) cases, cholelithiasis in 22 (44%), isolated choledocholithiasis in 16 (32%), cholecystitis in 3 (6%), pancreatic divisum in 3 (6%), choledochal cyst in 3 (6%), acute pancreatitis in 2 (4%) chronic pancreatitis in 4 (8%), and common bile duct (CBD) stricture in 2 (4%) cases; these are the most common pancreaticobiliary pathologies identified on MRCP. Ultrasonography was equally good in comparison to MRCP in identifying intrahepatic biliary radical dilatation, gallbladder distension, and cholelithiasis in 100% cases. However, the sensitivity and specificity of USG in detecting choledocholithiasis was low. Conclusion: Though USG provides a good information about the presence of biliary obstruction, it does not suggest the possible cause in many cases. Hence, USG is regarded as an initial guide to select the patients for MRI examination. Magnetic resonance cholangiopancreatography is a highly sensitive noninvasive modality in the detection of the level and cause of the biliary obstruction.

show abstract

“…Si bien existe evidencia en relación a que el ultrasonido endoscópico inicial sería la alternativa más costo-efectiva en pacientes con bajo riesgo, hecho que concuerda con lo que al menos por ahora informa la literatura (9)(10)(11) , esto no es comprobado para ultrasonido convencional. (37.5% prevalencia en nuestra serie) el US disminuye la probabilidad post-test hasta aproximadamente 0.2 (20%).…”

Section: Resonancia Magneticaunclassified

Colangioresonancia (Cprm) vs Ultrasonido (Us) Focalizado en Pacientes Con Ictericia O Sospecha De Obstruccion De La via Biliar: Resultados Preliminares

M¹,

M²,

P³

et al. 2003

Rev. chil. radiol.

View full text Add to dashboard Cite

Between January and July, 2003, a single blinded matched trial was done to assess focalized biliary ultrasound (US) and MR cholangiography (MRCP) compared with ERCP or surgery as reference standard in patients with suspected biliary obstruction. Focalized US was performed 24 hrs before/after MRCP. Patients were triage according symptoms, signs and laboratory in high, intermediate and low risk for obstruction. Radiologists sonographers were divided in low and highly experienced. None of the radiologist who reported either US or MRCP was aware to the other test results. Sensitivity, Specificity, PPV and NPV, (LR) Likelihood Ratios and pre and post-test odds for positive and negative test were estimated.We analized 64 out of 76 sampled patients, the prevalence of obstruction was 37 % (24 out of 64 patients). US found biliary tree dilated in 50% and MRCP in 48% of the patients. Main cause of obstruction was common bile duct stones in (16) 25%. and tumors were the second more common cause. US shown a Sensitivity (S) 58.3% when a non experienced radiologist perform the exam, and 70% when an experienced radiologist doest it. Specificity (Sp) 82,5%, PPV 66.7% and NPV 76.7%. RMCP Shown S 95.8%, Sp 87.5%, PPV 82.1%, NPV 97.2% For common bile duct stones US shown a PPV 53.3% and NPV 83.6% on the other hand MRCP a PPV 70% and NPV 95.4%. MRCP perform better than focalized US in overall patients with high risk of obstruction (37.5%), detecting the cause of obstruction but using aditional sequences rising the examination time and costs. With a positive ultrasound and LR(+) 3.3 pretest odds rise from 0.37/37% to a post-test odds of 0.55/55% and with negative test result and LR(-) 0.49 pre-test odds 0.37/37% will decrease to post-test odds of 0.2/20%. With MRCP a positive test with LR(+) 7.7 initial pre-test odds 0.37/37.5% to post-test odds of 0.8/ 80% and with a negative test result LR(-) 0.05 pretest odds 0.37/37% will decrease to post-test odds of 0.03%.Ultrasound performed by experienced sonographers has a Specificity and NPV over 80%, and perform similar to MRCP for detecting biliary tree dilatation the best predictor of obstruction. In patients with low pre-test odds (low risk) of obstruction, to use focalized US and then MRCP, when the cause of obstruction is not diagnosed could be the more cost/ efective initial alternative in this patients. This data must be confirmed with further studies with cost/effectivenes analysis.

show abstract

MR and ultrasound in screening of patients with suspected biliary tract disease

Cited by 17 publications

References 26 publications

The role of ultrasound in diagnosis of obstructive Jaundice causes in Sudanese population

The role of ultrasound in diagnosis of obstructive Jaundice causes in Sudanese population

Comparative Analysis of Hepatobiliary and Pancreatic Pathologies on Sonography and Magnetic Resonance Cholangiopancreatography

Colangioresonancia (Cprm) vs Ultrasonido (Us) Focalizado en Pacientes Con Ictericia O Sospecha De Obstruccion De La via Biliar: Resultados Preliminares

Contact Info

Product

Resources

About