Ultrasonography,99mTc-DIDA Cholescintigraphy, and Infusion Tomography in the Diagnosis of Acute Cholecystitis

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Abstract
Ultrasonography, 99mTc-DIDA (diethylacetanilide iminodiacetic acid) cholescintigraphy and infusion tomography of the gallbladder were compared in a prospective study comprising 45 consecutive patients clinically suspected of having acute cholecystitis. The diagnosis of acute cholecystitis was established or excluded by operation in 35 patients, by oral cholecystography in 5 and i.v. cholangiography in 5. The predictive values of a positive and a negative test were 100% and 83%, respectively, by ultrasonography and 98% and 88% by cholescintigraphy. Corresponding values for infusion tomography were 87% and 33%. In patients suspected of having acute cholecystitis, 99mTc-DIDA cholescintigraphy and ultrasonography may provide a rapid and reliable diagnosis.