The medical imaging technique or process of photographing or scanning the gallbladder, usually with contrast dye injection.
From Greek 'chole' (bile) + 'kystis' (bladder) + 'graphia' (writing or recording). The '-graphy' suffix indicates a method or technique of imaging or recording.
Cholecystography was the standard diagnostic tool in the 1950s-1970s, but ultrasound eventually replaced it because it's safer, faster, and cheaper—showing how medical technology evolves as better tools emerge.
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