3D NLS Is More Accurate Than 2D NLS For Diagnostics Of Choledocholithiasis Complications

NLS-diagnostics of choledocholithiasis complications as a method of primary screening has undeniable advantages in comparison with other hardware diagnostic techniques. Though the detection of choledocholithiasis is difficult and in some cases impossible without spectral-entropic analysis. In case of common 2D NLS-graphy the mistakes occur most often when dealing with stones of smaller diameter. 2D NLS-diagnostics of choledocholithiasis is only 60-70%.

Due to approximate density values of cholesterol stone and bile surrounding it the use of X-ray computed tomography does not allow concrements visualizing of the common bile duct especially in case of their small sizes and the lack of bile or pancreatic ducts ectasia. Also because of this the concrements cannot be differentiated with major duodenal papilla cancer. In this case the use of 3d nls with spectralentropic analysis is mostly reasonable in diagnostics of complicated cases of choledocholithiasis in case of accompanying chronic indurative pancreatitis and also for differential diagnostics of choledocholithiasis with pancreatic gland and bile ducts tumors. X-ray computed tomography is less sensitive to the detection of choledocholithiasis but it identifies more accurate the side and the cause of extrahepatic biliary obstruction in comparison with 2D NLS-diagnostics.