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Computed tomographic lymphangiography via intra‐metatarsal pad injection is feasible in dogs with chylothorax
Author(s) -
Lin LeeShuan,
Chiu HsienChieh,
Nishimura Ryohei,
Fujiwara Reina,
Chung ChengShu
Publication year - 2020
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/vru.12865
Subject(s) - medicine , chylothorax , computed tomographic , lymphatic system , radiology , thoracic duct , surgical planning , computed tomography , ultrasound , surgery , nuclear medicine , pathology
Lymphangiography can be useful for preoperative planning in chylothorax. Conventional ultrasound‐guided intranodal injection can be difficult in some cases and is dependent upon operator skill. Alternative methods have been proposed to simplify the procedure, but their feasibility has not been sufficiently evaluated in clinical cases. The primary purpose of this multicenter, retrospective, descriptive study was to assess the feasibility and describe the clinical findings of CT lymphangiography by intrametatarsal pad injection in dogs with naturally occurring chylothorax. Twenty dogs were analyzed, and enhancement of thoracic ducts (TDs) was successful in 18 (90%) dogs within 5‐14 min after initiating the injection, while successful enhancement of the lymphatic vessels cranial to the popliteal lymph nodes was seen in all dogs within 5 min after injection. The dose with good success to achieve TD enhancement was 1 mL/kg (concentration 350 mg I/kg). Only two dogs had mild discomfort after recovery from general anesthesia. Computed tomography lymphangiography by intrametatarsal pad injection is a feasible, easy, and safe procedure, which could provide adequate TD and cisterna chyli enhancement, identify TD number and cisterna chyli location and structure, and contribute to surgical planning.