Hepatobiliary scintigraphy in the diagnosis of XXXX --a Singapore experience.

@entity1 @entity1136 @entity4837 @entity2876
In recent years, @entity1136 IDA hepatobiliary scintigraphy has been widely accepted as a highly sensitive and fairly accurate test in the diagnosis of @entity2876 and evaluation of @entity4837 . Over a period of 4 years from 1982 to 1986, a total of 110 paediatric @entity1 had undergone @entity1136 IDA hepatobiliary scans in our department for @entity4837 . Their scans were reviewed to evaluate the role of this nuclear imaging technique in the diagnosis of @entity2876 . There were 43 true positive and 49 true negative scans. No false negative scan was encountered in our study. Hence the sensitivity was 100%. However, out of the 110 scans, there was misdiagnosis of @entity2876 in 18 cases. This gave a specificity of 73% with an accuracy of 84%. From this study we concluded that @entity1136 IDA imaging is a highly sensitive test in the screening of @entity2876 . However, its specificity is possibly limited by the short half life of the radioisotope @entity1136 in delayed 24 hr imaging and we feel that this could be improved by using slightly higher doses than what we are presently using.
