Radiomanometry During Biliary Operations

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Abstract
Radiomanometry is a technique whereby the biliary tree is investigated coincidentally by pressure determinations and x-ray images.1 It is an extension of the now widely used technique of peroperative cholangiography. Rather than injecting the contrast solution by syringe at physiologically high but yet unknown pressures, the contrast solution flows gently from a manometry apparatus. Existent operative pressures may be seen continuously. This study supports the utility of peroperative radiomanometry in identifying surgical diseases of the common bile duct as well as indicating which common ducts, though seemingly diseased, are physiologically normal. Radiomanometry is not new, having been developed by Caroli (Paris, 1941) and used since by many European and South American surgeons. The theory and practice was recently presented by Hess (Basel, Switzerland)1 upon which this study is based. Technique of Radiomanometry Under general anesthesia and without preoperative morphine sulfate, the gallbladder is isolated by ligation of the

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