Abstract:
PURPOSE:To evaluate the test performance of magnetic resonance (MR) cholangiography for help in diagnosing choledocholithiasis. MATERIALS AND METHODS:Fast spin-echo MR cholangiography was performed by using a torso multicoil array in 110 patients suspected of having bile duct obstruction. Axial and coronal images were reviewed by two observers who were blinded to results of direct cholangiography and final diagnoses. The final diagnosis was established by using direct cholangiographic (n = 103) or surgical (n = 7) findings. RESULTS:Of the 110 patients, 30 (27%) had choledocholithiasis, and 80 (73%) did not. Reviewer 1 used MR cholangiograms to achieve a sensitivity of 90%, specificity of 100%, positive predictive value of 100%, negative predictive value of 96%, and overall accuracy of 97%. Reviewer 2 achieved a sensitivity of 90%, specificity of 93%, positive predictive value of 82%, negative predictive value of 96%, and overall accuracy of 92%. Interobserver agreement for MR cholangiograms was 93% (kappa = 0.82). CONCLUSION:MR cholangiography exhibited excellent test performance and resulted in excellent interobserver agreement for the diagnosis of choledocholithiasis.
journal_name
Radiologyjournal_title
Radiologyauthors
Reinhold C,Taourel P,Bret PM,Cortas GA,Mehta SN,Barkun AN,Wang L,Tafazoli Fdoi
10.1148/radiology.209.2.9807570subject
Has Abstractpub_date
1998-11-01 00:00:00pages
435-42issue
2eissn
0033-8419issn
1527-1315journal_volume
209pub_type
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