Variations in normal hepatobiliary scintigraphy in Indian population

Area of Science:

• Nuclear Medicine
• Radiology
• Gastroenterology

Background:

• Hepatobiliary scintigraphy is a key diagnostic tool.
• Understanding normal variations is crucial for accurate interpretation.
• Tc99m iminodiacetic acid (IDA) analogs are commonly used radiotracers.

Purpose of the Study:

• To establish reference ranges for normal hepatobiliary scintigraphy findings.
• To investigate the temporal visualization patterns of the gallbladder and small intestine.
• To identify common variations in normal hepatobiliary imaging.

Main Methods:

• Hepatobiliary scintigraphy was performed on 100 healthy adults.
• Tc99m iminodiacetic acid (IDA) analog was used as the radiotracer.
• Image acquisition and analysis focused on gallbladder and small intestine visualization times.

Main Results:

• Gallbladder visualization increased from 43% at 15 min to 99% at 60 min.
• Small intestine visualization increased from 24% at 15 min to 92% at 60 min.
• Prominent left hepatic duct observed in 45% and reciprocal relation between small intestine and gallbladder in 21%.

Conclusions:

• This study provides essential data on normal hepatobiliary scintigraphy variations.
• Established visualization timelines aid in diagnosing hepatobiliary disorders.
• Findings contribute to the standardization of normal hepatobiliary imaging interpretation.