COMPARATIVE EFFICIENCY OF ULTRASONOGRAPHY AND MAGNETIC RESONANCE IMAGING IN DETECTION OF GALLSTONES TAKING OPERATIVE FINDINGS AS GOLD STANDARD

Dr. Debasis Deoghuria; Dr. Jayati Bardhan; Dr Wasim Raja; Dr. Kashi Nath Sarkar

Volume : VIII, Issue : IV, April - 2018

COMPARATIVE EFFICIENCY OF ULTRASONOGRAPHY AND MAGNETIC RESONANCE IMAGING IN DETECTION OF GALLSTONES TAKING OPERATIVE FINDINGS AS GOLD STANDARD

Dr. Debasis Deoghuria, Dr. Jayati Bardhan, Dr Wasim Raja, Dr. Kashi Nath Sarkar

Abstract :

BACKGROUND: Gall stone disease is a fairly common problem encountered in surgical practice.Obese,middle aged females,as we all know,are the common victims.Considering the morbidity and a definite risk for carcinoma of gall bladder ,an early diagnosis and treatment –i.e. cholecystectomy is mandatory.In this article,we have endeavoured to decipher the comparative efficiency of USG and MRI in detection of gall stones using intra–operative findings as gold standard.

AIMS:To evaluate the comparative efficacy of Ultrasound and Magnetic Resonance Imaging(MRI) in reaching a definitive diagnosis of gall stones.

MATERIAL AND METHODS: A total of 120 cases of clinically suspected cholelithiasis were included in our study.All of them were subjected to USG and MRI.Patients were interrogated with 2–5 mHz convex transducer of HD–7 USG machine(Philips) in a completely fasting state and 1.5 Tesla MRI machine using protocol for MRCP.Data were analysed ,sensitivity and specificity of both modalities were calculated and compared using ANOVA method.

RESULTS: Of the 120 clinically suspected cases ofcholelithiasis ,ultrasonography detected 100 cases of gall stones.MRI could detect 84 cases while actually 96 cases had actual gall stone disease as seen at surgery.USG could not detect one case with gall stone while it misinterpreted 3 cases of calcified sludge and 2 cases of polyps as gall stones.

CONCLUSION:Ultrasonography is superior to MRI in detecting gall stones and we recommend sonographic evaluation of every case of clinically suspected cholelithiasis where MRI gives negative results.