Diagnostic accuracy of ultrasonography compared with magnetic resonance cholangiopancreatography in the detection of choledocholithiasis

2022 ◽  
Author(s):  
Osama Samara ◽  
Muayad I. Azzam ◽  
Mohammad A. Alshrouf ◽  
Asim N. Khanfar ◽  
Rand Rafid Mohialdeen ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Diagnostic Accuracy ◽  
Magnetic Resonance Cholangiopancreatography

Diagnostic accuracy of magnetic resonance cholangiopancreatography for biliary disease

2000 ◽  
Vol 118 (4) ◽  
pp. A452
Author(s):  
Yoshinori Kitazumi ◽  
Satoshi Kanozawa ◽  
Toshiki Anzai ◽  
Mamoru Iimuro ◽  
Morio Takahashi ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Diagnostic Accuracy ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Biliary Disease

scholarly journals Diagnostic Accuracy of Magnetic Resonance Cholangiopancreatography (MRCP) In-Patients Undergoing Endoscopic Retrograde Cholangiopancreatography (ERCP) for Pancreaticobiliary Disorders

2021 ◽  
pp. 119-124
Author(s):  
M. Vignesh Kumar
Keyword(s):  
Bile Duct ◽  
Magnetic Resonance ◽  
Common Bile Duct ◽  
Diagnostic Accuracy ◽  
Magnetic Resonance Cholangiopancreatography ◽  
Periampullary Carcinoma ◽  
Endoscopic Retrograde ◽  
Common Cause ◽  
The Common ◽  
Study Participants

This is a prospective study done to compare the diagnostic accuracy of Magnetic Resonance Cholangiopancreatography (MRCP) in patients undergoing Endoscopic Retrograde Cholangiopancreatography (ERCP) for pancreaticobiliary disorders.Majority of the study participants were males (63.3%), while the rest 36.78% of them were females and periampullary carcinoma (11.7%) and common bile duct calculus (11.7%) are the common cause of obstruction found on MRCP followed by malignant stricture (10%). The extent of obstruction was determined in most of the study participants (91.7%) by MRCP while the rest 8.3% were not determined by MRCP. The Common bile duct calculus (11.7%) is the common cause of obstruction on ERCP followed by malignant stricture (10%) and Periampullary carcinoma (10%) and 20% of the patients were found to be normal in ERCP. Among them, 71.4 % did not show MRCP and the association was found to be significant. (p- Value < 0.00).

Diagnostic Accuracy of MRC in Benign and ML in Obstructive Jaundice Patients, Taking Histopathology as Gold Standard

2021 ◽  
Vol 15 (12) ◽  
pp. 3421-3423
Author(s):  
Kamran Naseem ◽  
Malik Mudasir Hassan ◽  
Sarah Nisar
Keyword(s):  
Magnetic Resonance ◽  
Obstructive Jaundice ◽  
Diagnostic Accuracy ◽  
Gold Standard ◽  
False Negative ◽  
Magnetic Resonance Cholangiopancreatography ◽  
True Negative ◽  
Cross Sectional ◽  
Standard Material ◽  
Malignant Lesions

Objectives: To find out the diagnostic accuracy of magnetic resonance cholangiopancreatography in benign and malignant lesions in patients of obstructive jaundice, taking histopathology as gold standard. Material and methods: This cross sectional study was conducted at Department of Radiology, Bahawal Victoria Hospital, Bahawalpur October 2019 to April 2020. A total of 164 patients with suspected cases of obstructive jaundice and age 25-65 years of either gender were included. Then magnetic resonance cholangiopancreatography (MRCP) was performed in every patient by 1.5 Tesla MR System using a torso phased-array coil. After this, each patient was undergone operation in the concerned ward. Findings of MRCP were compared with the findings of histopathology. Results: In MRCP positive patients, 78 were true positive (TP) and 13 were false positive (FP). Among 73, MRCP negative patients, 08 were false negative (FN) whereas 65 were True Negative (TN). Overall specificity, sensitivity, NPV, PPV and diagnostic accuracy of magnetic resonance cholangiopancreatography in benign and malignant lesions in patients of obstructive jaundice, taking histopathology as gold standard was 90.70%, 83.33%, 85.71%, 89.04% and 87.20% respectively. Conclusion: This study concluded that magnetic resonance cholangiopancreatography (MRCP) is the non-invasive modality of choice with diagnostic accuracy in diagnosing in benign and malignant lesions in obstructive jaundice patients. Keywords: obstructive jaundice, sensitivity, magnetic resonance imaging.

Diagnostic accuracy of magnetic resonance angiography for acute pulmonary embolism - a systematic review and meta-analysis

VASA ◽  
2016 ◽  
Vol 45 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Jie Li ◽  
Lei Feng ◽  
Jiangbo Li ◽  
Jian Tang
Keyword(s):  
Pulmonary Embolism ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Diagnostic Accuracy ◽  
Acute Pulmonary Embolism ◽  
Meta Analysis ◽  
Likelihood Ratios ◽  
Summary Receiver Operating Characteristic ◽  
Acute Pe ◽  
Limited Sensitivity

Abstract. Background: The aim of this meta-analysis was to evaluate the diagnostic accuracy of magnetic resonance angiography (MRA) for acute pulmonary embolism (PE). Methods: A systematic literature search was conducted that included studies from January 2000 to August 2015 using the electronic databases PubMed, Embase and Springer link. The summary receiver operating characteristic (SROC) curve, sensitivity, specificity, positive likelihood ratios (PLR), negative likelihood ratios (NLR), and diagnostic odds ratio (DOR) as well as the 95 % confidence intervals (CIs) were calculated to evaluate the diagnostic accuracy of MRA for acute PE. Meta-disc software version 1.4 was used to analyze the data. Results: Five studies were included in this meta-analysis. The pooled sensitivity (86 %, 95 % CI: 81 % to 90 %) and specificity (99 %, 95 % CI: 98 % to 100 %) demonstrated that MRA diagnosis had limited sensitivity and high specificity in the detection of acute PE. The pooled estimate of PLR (41.64, 95 % CI: 17.97 to 96.48) and NLR (0.17, 95 % CI: 0.11 to 0.27) provided evidence for the low missed diagnosis and misdiagnosis rates of MRA for acute PE. The high diagnostic accuracy of MRA for acute PE was demonstrated by the overall DOR (456.51, 95 % CI: 178.38 - 1168.31) and SROC curves (AUC = 0.9902 ± 0.0061). Conclusions: MRA can be used for the diagnosis of acute PE. However, due to limited sensitivity, MRA cannot be used as a stand-alone test to exclude acute PE.

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