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Utility of bladder lavage in Meckel's scanning
Clinical Nuclear Medicine
|November 1, 1985
Summary
Radioactive urine in a bladder diverticulum can mimic Meckel's diverticulum on scans. Saline bladder lavage effectively removes this activity, preventing false positives and potentially improving Meckel's diverticulum detection.
Area of Science:
- Nuclear medicine
- Gastroenterology
- Pediatric imaging
Background:
- Technetium-99m pertechnetate scintigraphy is used to diagnose Meckel's diverticulum.
- Urinary bladder activity can complicate scintigraphic interpretation.
- Diverticula in the urinary tract can accumulate radioactive material.
Observation:
- Radioactive urine accumulated in a bladder diverticulum.
- This accumulation mimicked the uptake pattern of a Meckel's diverticulum.
- Activity persisted even after bladder catheterization and drainage.
Findings:
- Saline bladder lavage successfully removed the residual radioactive urine.
- This intervention prevented a false-positive diagnosis of Meckel's diverticulum.
- Bladder lavage may enhance diagnostic sensitivity by clearing obscuring activity.
Implications:
- Bladder lavage is a crucial step to prevent false positives in Meckel's scintigraphy.
- This technique can improve the detection rate of Meckel's diverticuli.
- Standardizing bladder preparation protocols is recommended for accurate scintigraphy.