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Related Experiment Videos

Gallbladder visualization on routine lung perfusion imaging

A J Arroyo1, T J Jenkins, Y P Patel

  • 1Department of Nuclear Medicine, St. Vincent Medical Center, Toledo, Ohio 43608, USA.

Clinical Nuclear Medicine
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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Gallbladder uptake is a common finding in lung perfusion imaging using Technetium-99m macroaggregated albumin. This study investigated the incidence and potential causes of this unexpected visualization during routine SPECT scans.

Area of Science:

  • Nuclear Medicine
  • Diagnostic Imaging

Background:

  • Unexpected gallbladder visualization observed during routine lung SPECT studies.
  • This finding was confirmed with advanced imaging techniques and ruled out radiopharmaceutical issues.

Purpose of the Study:

  • To determine the incidence of gallbladder uptake in patients undergoing lung perfusion imaging.
  • To investigate the potential mechanisms behind gallbladder visualization.

Main Methods:

  • Fifty-four patients undergoing routine lung perfusion imaging were evaluated.
  • Anterior and/or right lateral abdominal views were acquired post-lung imaging.
  • Exclusion criteria included severe illness or prior cholecystectomy.

Main Results:

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  • Gallbladder activity was observed in 19 out of 54 patients (35.2%).
  • Activity was also noted in the gut, kidneys, and urinary bladder.

    • Conclusions:

    • Gallbladder activity following Tc-99m macroaggregated albumin injection for lung perfusion studies is a common occurrence.
    • Further investigation into the mechanism of gallbladder visualization is warranted.