Comparison of diagnostic value of 99mTc-EHIDA SPECT/CT hepatobiliary dynamic imaging at different phases / 中国医学影像技术

ABSTRACT

Objective To explore the value of 99mTc-EHIDA hepatobiliary dynamic imaging at different phases for diagnosis of hepatobiliary diseases. Methods Totally 387 patients with hepatobiliary diseases confirmed by pathology or clinical data were retrospectively analyzed. All patients underwent 99mTc-EHIDA hepatobiliary dynamic imaging. According to intestinal imaging, the patients were divided into normal excretory group (n=65, without hepatobiliary disease or cured) and abnormal excretory group (n=322, including 127 cases of biliary atresia [BA], 108 cases of infant hepatitis syndrome [IHS], 62 cases of choledochal cyst and 25 cases of bile leakage). In normal excretory group, the consistency of imaging findings of excretory patency between the early phases and the delayed phases was observed. In abnormal excretory group, the detection rates of hepatobiliary diseases at different phases were calculated and compared. Results In normal excretory group, imaging findings of excretory patency between the early phases and the delayed phases were consistent in 62 cases, and normal excretion was confirmed at the delayed phase in 3 cases. In the abnormal excretory group, differences of detection rates of BA, IHS and choledochal cyst were all statistically significance between 2 h and 4 h as well as between 4 h and 6 h (all P 0.008). The detection rates of bile leakage were higher in delay phases, and there was no statistical significance between 2 h and 4 h, 4 h and 6 h nor 6 h and 24 h (all P>0.008). Conclusion 99mTc-EHIDA hepatobiliary dynamic imaging has good diagnostic value for various diseases of hepatobiliary system.