You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Investigation of choice in suspected gall bladder stone is and explain in detail?
(Ultrasound) (152-Sutton 17th)* ULTRASOUND - widely used as the preliminary examination in suspected gall bladder or biliary tract disease and has added advantages that liver and pancreas can be assessed at the same examination* It is highly accurate in the diagnosis of gall stones including the non opaque stones not visible at simple radiographyLaparoscopic cholecystectomy is the treatment of choice for symptomatic gall stone (634-CMDT-10)99Tcm HIDA- isotope scanning is also a most valuable screening test for acute cholecystitisPercutaneous transhepatic cholangiography (PTC) - main indication for PTC is in the assessment of obstructive jaundice,Endoscopic retrograde cholangiopancreatography (ERCP) probably method of choice for the investigation of obstructive jaundice* Most common complication after ERCP is - Acute Pancreatitis** Stone which is resistant to Lithotripsy - cystine stone*** Focal and diffuse thickening of gall bladder with high amplitude reflection and "Comet tail" artifacts on USG- suggests - Adenomyomatosis of GBMagnetic resonance cholangiopancreatograpy (MRCP) is a radiological technique that produces images of the pancreatobiliary tree that are similar in appearance to those obtained by invasive radiographic methods such as ERCPAdvantages over ERCP* MRCP do not require administration of contrast agents or ionizing radiation* Images can be acquired faster* It is less operator dependent* Carries no risk of pancreatitis*Pancreatic divisum is the most common congenital variant of human pancreas