Performance of Magnetic Resonance Cholangiography at the Clinic Center
ثبت نشده
چکیده
Objectives: To define diagnostic performance of magnetic resonance cholangiography (MRC) at the Clinic Center (Hospital de Clínicas) and to compare it with data reported in international bibliography. Methods: A retrospective study was undertaken; 126 MRC examinations were done to 126 patients within the period December 2010-July 2013. The results were correlated with endoscopic retrograde cholangiopancreatography (ERCP), surgical findings and clinical outcome. Results: These MRC examinations were evaluated for sensitivity (S), specificity (Sp), positive predictive value (PPV) and negative predictive value (NPV). Regarding general biliary tract pathology, S amounted to 97%, Sp to 83%, PPV to 73% and NPV, to 98%; in patients with clinical suspicion for lithiasis the values found were 94% for S, 81% for Sp, 65% for PPV, and 97% for NPV. The incidence of anatomical variants was found to be 17.5%. Conclusion: MRC was shown to perform well as a diagnostic procedure for common bile duct (CBD) pathology and choledocholithiasis in our center. S values, as well as NPV ones, agreed with values reported elsewhere.
منابع مشابه
بررسی مقایسه ای قدرت تشخیصی کلانژیوگرافی به روش رزونانس مغناطیسی، سونوگرافی و آزمون های آزمایشگاهی در ارزیابی های قبل از عمل جراحی انسدادهای مشکوک مجاری صفراوی
Background and purpose: Evaluation of suspected biliary obstruction is performed by common old methods such as Ultrasound, CT, and invasive cholangiography. These techniques have limitations due to the poor visualization of intraductal stones (US, CT) and the need for an invasive procedure (ERCP, PTC). Magnetic resonance cholangiography (MRC) is noninvasive imaging modality that provides good...
متن کاملPneumobilia at Magnetic Resonance Cholangiography: Diagnostic Pitfalls and Solutions
Objective: To assess the diagnostic problem created by pneumobilia at magnetic resonance cholangiography performed in the supine position, and to investigate whether performing the examination in the decubitus position obviates the problem. Patients and Methods: Twelve patients with a history of recurrent pyogenic cholangitis and ultrasound diagnosis of pneumobilia were studied by means of heav...
متن کاملApplication of magnetic resonance spectroscopy for evaluating metabolic alteration in anterior cingulate cortex in Alzheimer's disease
Introduction: Alzheimer’s disease (AD) is the most common cause of dementia worldwide. Mild cognitive impairment (MCI) is often the prodromal stage to AD. Most patients with MCI harbor the pathologic changes of AD and demonstrate transition to AD at a rate of 10–15% per year. Accumulating evidence indicates that the asymmetry changes of left and right brain have happened in the early stage of A...
متن کاملMagnetic resonance cholangiography compared with endoscopic retrograde cholangiography in the diagnosis of primary sclerosing cholangitis
BACKGROUND Magnetic resonance cholangiography (MRC) has gained popularity for diagnosing primary sclerosing cholangitis (PSC). We determined the accuracy of MRC compared with endoscopic retrograde cholangiography (ERC) for diagnosing PSC. MATERIALS AND METHODS This retrospective case-control study was conducted on patients referred to an outpatient gastroenterology clinic from 2001 to 2013. P...
متن کامل