Asian journal of surgery · 2024
Negative gallbladder stones: Diagnostic advantages of dual-energy CT and analysis of a unique case.
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Wang Fengyan, Wang Shuling, Gong Weiyi
Аннотация
BACKGROUND: Gallbladder stones are a common digestive system disease, but their diagnosis can be limited in some cases, especially in identifying "negative" stones, which may be difficult to recognize with traditional CT scans.
OBJECTIVE: This study aims to explore the advantages of dual-energy CT in diagnosing negative gallbladder stones through a unique case of gallbladder stones.
METHODS AND RESULTS: A case of a 31-year-old female is described, who was diagnosed with gallbladder stones during a physical examination two years ago and occasionally experienced pain in the upper right abdomen. Dual-energy CT scanning revealed a mixed-density stone, approximately 2 cm in diameter, in the neck of the gallbladder, consisting of a calcified shell (positive stone) and a homogenous density nucleus (negative stone). Verified by dual-energy CT, single-energy images and spectral curves can very intuitively identify negative stones, demonstrating significantly superior performance compared to traditional CT.
CONCLUSION: Dual-energy CT, through single-energy images and spectral curves, intuitively identifies negative gallbladder stones, showcasing significant advantages compared to traditional CT, and offers a valuable approach to enhancing the diagnostic accuracy of gallbladder stones.
OBJECTIVE: This study aims to explore the advantages of dual-energy CT in diagnosing negative gallbladder stones through a unique case of gallbladder stones.
METHODS AND RESULTS: A case of a 31-year-old female is described, who was diagnosed with gallbladder stones during a physical examination two years ago and occasionally experienced pain in the upper right abdomen. Dual-energy CT scanning revealed a mixed-density stone, approximately 2 cm in diameter, in the neck of the gallbladder, consisting of a calcified shell (positive stone) and a homogenous density nucleus (negative stone). Verified by dual-energy CT, single-energy images and spectral curves can very intuitively identify negative stones, demonstrating significantly superior performance compared to traditional CT.
CONCLUSION: Dual-energy CT, through single-energy images and spectral curves, intuitively identifies negative gallbladder stones, showcasing significant advantages compared to traditional CT, and offers a valuable approach to enhancing the diagnostic accuracy of gallbladder stones.