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Morphine-augmented versus CCK-augmented cholescintigraphy in diagnosing acute cholecystitis
1Department of Nuclear Medicine, Veterans Generel Hospital, Taipei, Taiwan.
Nuclear Medicine Communications
|February 1, 1995
Summary
Morphine-augmented cholescintigraphy offers a more reliable and faster diagnosis for suspected acute cholecystitis. This technique improves diagnostic accuracy compared to cholecystokinin (CCK) in gallbladder imaging.
Area of Science:
- Nuclear Medicine
- Gastroenterology
- Diagnostic Imaging
Background:
- Acute cholecystitis diagnosis can be challenging with standard cholescintigraphy.
- Pharmacological agents are used to enhance gallbladder visualization and improve diagnostic accuracy.
Observation:
- 60 patients with suspected acute cholecystitis and non-visualized gallbladder underwent cholescintigraphy after receiving either morphine or cholecystokinin (CCK).
- Morphine sulfate (Group I) and CCK (Group II) were administered intravenously.
Findings:
- Morphine-augmented cholescintigraphy demonstrated higher sensitivity (94%) and specificity (100%) compared to CCK (100% sensitivity, 84% specificity).
- Positive predictive value was 100% for morphine and 79% for CCK.
- Negative predictive value was 93% for morphine and 100% for CCK.
- The diagnostic performance difference between the groups was statistically significant (P < 0.05).
Implications:
- Morphine-augmented cholescintigraphy provides more reliable diagnostic information for acute cholecystitis.
- This method is less time-consuming than CCK-augmented imaging.
- Enhanced cholescintigraphy protocols can improve the diagnostic yield in challenging gallbladder imaging cases.