Abstract
This study aimed to establish an animal model for thoracic duct lymphangiography using ethiodized oil. Thoracic duct lymphangiography was performed via the testes in 21 Japanese white rabbits. The testicular parenchyma was punctured by palpation using a 30-gauge, 0.5-inch needle. Ethiodized oil was injected at a rate of 11.41 mL/h until the testicular efferent lymphatic vessels were delineated and then at a rate of 2.85 mL/h until the entire thoracic duct was delineated. Thoracic duct delineation was 100% successful and showed good depiction based on visual scores. The mean ethiodized oil dose administered was 4.59 mL ± 1.41, and the mean time to visualize the entire thoracic duct was 43.7 minutes ± 14.1. The presented model may serve as a method for future preclinical investigation of the thoracic duct anatomy and for thoracic duct interventions.
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