99Tcm-MIBI hepatobiliary scintigraphy in peadiatric patients with severe cholestatic infant hepatitis syndrome

Objective Because of the limited of 99Tcm-diethyl iminodiacetic acid (99Tcm-EHIDA)hepatobiliary scintigraphy in the diagnosis of severe cholestatic infant hepatitis syndrome, trial use 99Tcm-methoxy isobutyl isonitrile (99Tcm-MIBI) as a new hepatobiliary scintigraphy imaging agent to understand its applied basis and primary evaluate value in diagnosis of severe cholestatic infant hepatitis syndrome.Methods Constructed choledochal atresia animal model and investigated the application basis of 99Tcm-MIBI hepatobiliary scintigraphy. Twenty-seven children patients of severe cholestatic who finally confirmed infant hepatitis syndrome were underwent firstly 99Tcm-EHIDA hepatobiliary scintigraphy. After 24 h delay imaging next day, 99Tcm-MIBI hepatobiliary scintigraphy was underwent after I h. Two imaging agents of value in the diagnosis of severe cholestatic infant hepatitis syndrome were compared. Results It was proved that 99Tcm-MIBI was surely excreted by hepatobiliary and had no intestinal autocrine phenomenon in animal test. So 99Tcm-MIBI can be used to undergo hepatobiliary scintigraphy. The sensitivity of 99Tcm-MIBI hepatobiliary scintigraphy in the diagnosis of severe cholestatic infant hepatitis syndrome was 100% in our primary clinical study. Its sensitivity was higher than which of 99Tcm-EHIDA hepatobiliary scintigraphy (66.67%) by far.Conclusions With regard to those children patients who suspected highly severe cholestatic infant hepatitis syndrome in clinical, the sensitivity of 99Tcm-MIBI hepatobiliary scintigraphy is obviously superior to conventional 99Tcm-EHIDA hepatobiliary scintigraphy. Key words: Cholestasis;  Hepatitis;  Infant;  Technetium 99Tcm sestamibi;  Technetium 99Tcm diethyliminodiacetic acid