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imaging characteristic and evaluation of MRI on the diagnosing of extra hepatic biliary stone
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Abstract
SUMMARY
Objective: Study of MR imaging characteristic of the extrahepatic CBD & its value about the stone finding.
Objet and Method: Retrospectiv of 56 patients having open
operation, endo and retrograde endoscopy from 10/2010 - 8/2011 at Bach mai hospital.
Means: USG of Philips HD11, MRI units of Siemens Advanto
and Essenza 1.5T.
Results: Among 56 operated patients for CBD stone, 6 free of stone (4 Oddi stenosis, 1 vater ampulla tumor, 1 unknown cause). MRI detected 49/50, missing 2% . In 49 positiv, 1 having 10 stones (2%), almost 3 (38%), the greatest 20 x 30mm, mainly localized at the III extrahepatic CBD portion (85/153 stones). 1 missing 5mm is at the IV portion, 49% inhomogenous mosaic form,79 strongly hyposignal on T2W. 22 patients (44.9%) associated with lithiasis in right bile duct, left 27 (55.1%), GB 13 (26.5%). Bile duct dilatation up and downward of the stone 23 (46.9%), hepatic abcess 3 (6.1%) Compare USG/MRI. USG: Se 96%, Sp 16.1%, PPV 48%, PPV 48%, Acc 52%. MRI: Se 98%,Sp 83,3%, PPV 98%, NPV 83.3%, Acc 96.4%.
Conclusion: MRI is a good means for detecting low CBD stone also for predicting its number, dimension, location and complication also Se, Acc evidently higher than USG.
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References
1. Nguyễn Đình Hối và cs (2005), Nghiên cứu ứng dụng tiến bộ khoa học công nghệ trong chẩn đoán và điều trị sớm bệnh sỏi mật, Đề tài khoa học cấp Nhà nước.
2. Nguyễn Duy Huề (2002), Chụp cắt lớp vi tính gan và đường mật. Tài liệu đào tạo chụp cắt lớp vi tính.
3. Lê Hùng (2004), Bước đầu nghiên cứu đặc điểm hình ảnh CHT trong tắc mật ngoài gan, Luận văn tốt nghiệp bác sĩ nội trú, Đại học Y Hà Nội.
4. Lê Tuấn Linh (2005), Nghiên cứu giá trị của CLVT trong chẩn đoán sỏi OMC, Luận văn tốt nghiệp bác sĩ nội trú, Đại học Y Hà Nội.
5. Chan, Y.L., et al.(1996) ,Choledocholithiasis: comparison of MR cholangiography and endoscopic retrograde cholangiography. Radiology, 200(1): p. 85-89.
6. Eshghi, F. and R. Abdi (2008), Routine magnetic resonance cholangiography compared to intra-operative cholangiography in patients with suspected common
bile duct stones. Hepatobiliary Pancreat Dis Int, 7(5).
7. Kondo, S., et al. (2005), Detection of common bile duct stones: comparison between endoscopic ultrasonography, magnetic resonance cholangiography, and helical-computed-tomographic cholangiography. European Journal of Radiology, 54 (2): p. 271-.
8. Varghese, J.C., et al. (2000), Diagnostic Accuracy of Magnetic Resonance Cholangiopancreatography and Ultrasound Compared with Direct Cholangiography in the Detection of Choledocholithiasis. Clinical Radiology, 55 (1): p. 25-35.