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Updated: Jun 14, 2026

Underwater Endoscopic Injection Sclerotherapy for Gastroesophageal Varices
Published on: August 1, 2025
Visualization of gastric varices using angiographic C-arm CT during retrograde transvenous sclerotherapy
Jin Iwazawa1, Shoichi Ohue, Hisashi Abe
1Department of Radiology, Nissay Hospital, 6-3-8 Itachibori, Nishiku, Osaka, Japan.
Abstract:
During retrograde transvenous sclerotherapy for gastric varices, sufficient opacification of the target varices on venography is essential for successful treatment. However, venography sometimes cannot identify target varices due to overlapping adjacent collateral vessels or leakage of contrast medium to other outflow veins. We report how C-arm CT images acquired using a flat-panel detector angiography system helped to identify target varices and predict the distribution of a sclerosant, which resulted in safer sclerotherapy and increased operator confidence.
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