Complications of cholecystitis and/or biliary colic may also include cholangitis, sepsis, pancreatitis, hepatitis, and choledocholithiasis (10%). In addition, Gallbladder perforation occurs in 10% of patients with cholecystitis. When perforation is localized, it may be seen as pericholecystic fluid by ultrasonography.
Half-life is defined as the time it takes for one half of a radioactive element to decay into a daughter isotope. As radioactive isotopes of elements decay, they lose their radio activity and become a brand new element known as a daughter isotope.
1 The half-life of a radioisotope is the time required for half the atoms. & 2 nbsp &nbsp in a given sample to undergo radioactive, or nuclear, decay. 3  Half-life is given the symbol t&#189. 4  Different radioisotopes have different half-lives.