Computed tomography dacryocystography evaluation of the nasolacrimal apparatus.
Abstract: Computed tomography-dacryocystography (CT-DCG) was used to evaluate the nasolacrimal system in four patients (three dogs and one horse) that were admitted for evaluation of chronic epiphora, facial swelling, or facial trauma. The four patients are reviewed and the technique for performing CT-DCG is described. Additionally, the indications for this procedure are discussed. CT-DCG is advantageous because cross-sectional imaging provides superior resolution of the nasolacrimal apparatus and the relatively long, small-diameter, bony nasolacrimal canal in most veterinary patients.
Publication Date: 2004-03-10 PubMed ID: 15005357DOI: 10.1111/j.1740-8261.2004.04004.xGoogle Scholar: Lookup
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Summary
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The research study used computed tomography-dacryocystography (CT-DCG) to evaluate the nasolacrimal system in three dogs and one horse which had signs of chronic tearing, facial swelling or trauma. The research explains the procedure, it’s benefits and the conditions when it’s required.
Objectives of the Research
- The aim of the research was to use CT-DCG to evaluate the nasolacrimal system in four animals – three dogs and one horse. These animals were suffering from chronic tearing (epiphora), facial swelling, or facial trauma.
- The study also aimed to describe and review the method of conducting CT-DCG and discuss the situations where the procedure is beneficial.
Methodology
- In this research, the technique of computed tomography-dacryocystography (CT-DCG) was used. CT-DCG is an imaging process in which the inner parts of bodies are studied using cross-sectional view aided by computed tomography.
- The researchers performed CT-DCG on four patients — three dogs and one horse — and subsequently reviewed the results.
Discussion
- The results from CT-DCG revealed the condition of the nasolacrimal apparatus (involved in tear transportation) in animals. It was noted that cross-sectional imaging provided superior resolution images allowing for a better understanding of the relatively long, small-diameter, bony nasolacrimal canal in veterinary patients.
- The paper also discusses the indicated scenarios for conducting CT-DCG, stating that it is particularly useful for examining chronic epiphora, facial swelling or facial trauma conditions in animals.
Conclusion
- The research concludes that CT-DCG is an efficient method for evaluating and studying the nasolacrimal system in animals, particularly those with chronic tearing, facial swelling or trauma conditions.
- It further suggests CT-DCG as a go-to technique for such scenarios due to its advantage of providing superior resolution of the nasolacrimal apparatus.
Cite This Article
APA
Nykamp SG, Scrivani PV, Pease AP.
(2004).
Computed tomography dacryocystography evaluation of the nasolacrimal apparatus.
Vet Radiol Ultrasound, 45(1), 23-28.
https://doi.org/10.1111/j.1740-8261.2004.04004.x Publication
Researcher Affiliations
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY 14853, USA.
MeSH Terms
- Animals
- Diagnosis, Differential
- Dog Diseases / diagnosis
- Dog Diseases / diagnostic imaging
- Dogs
- Horse Diseases / diagnosis
- Horse Diseases / diagnostic imaging
- Horses
- Lacrimal Apparatus Diseases / diagnosis
- Lacrimal Apparatus Diseases / veterinary
- Male
- Nasolacrimal Duct / diagnostic imaging
- Tomography, X-Ray Computed / veterinary
Citations
This article has been cited 12 times.- Park SA, Oetelaar G, Kim SY. Stenting of a partially obstructed nasolacrimal duct using a steerable angle-tipped hydrophilic guidewire in a cat. Vet Ophthalmol 2023 Mar;26(2):161-168.
- Stieger-Vanegas SM, Hanna AL. The Role of Computed Tomography in Imaging Non-neurologic Disorders of the Head in Equine Patients. Front Vet Sci 2022;9:798216.
- Sahr S, Dietrich A, Oechtering G. Evaluating malformations of the lacrimal drainage system in brachycephalic dog breeds: A comparative computed tomography analysis. PLoS One 2021;16(9):e0257020.
- Rossi R, Sainato D, Kumaratunga V, Renfrew H. Lacrimal bone agenesis in a dog. Can Vet J 2021 May;62(5):505-508.
- Poore LA, Le Roux C, Carstens A. Trauma-induced exostosis of multiple suture lines causing partial bilateral nasolacrimal duct obstruction in a 7-year-old Thoroughbred mare. J S Afr Vet Assoc 2019 Sep 26;90(0):e1-e7.
- Dennis DA, Pinard CL, Kenney DG, Salcedo RJ, Trout DR. Normograde nasolacrimal placement of an ocular-lavage system for treatment of equine eye diseases. Can Vet J 2019 Jul;60(7):744-748.
- Barsotti G, Mannucci T, Citi S. Ultrasonography-guided removal of plant-based foreign bodies from the lacrimal sac in four dogs. BMC Vet Res 2019 Mar 5;15(1):76.
- Patella F, Panella S, Zannoni S, Jannone ML, Pesapane F, Angileri SA, Sbaraini S, Ierardi AM, Soldi S, Franceschelli G, Carrafiello G. The role of interventional radiology in the treatment of epiphora. Gland Surg 2018 Apr;7(2):103-110.
- Lamagna B, Navas L, Prisco F, Costanza D, Russo V, Lamagna F, Di Palma C, Uccello V, Mennonna G, Paciello O, Peruta F, Flauto G, Della Valle G. Clinicopathologic Features, Surgical Treatment, and Pathological Characterization of Canine Dacryops with Different Localization. Vet Sci 2025 Jul 28;12(8).
- Noh D, Shin B, Shin HG, Lee K. Imaging diagnosis of paranasal sinus mucocele in a Yorkshire Terrier dog. Vet Med (Praha) 2021 Dec;66(12):539-545.
- Seetaram M, Sinha D, Ramakrishnan K, N V. Evaluating the Prevalence of Nasolacrimal Canal Injury in Midfacial Fractures: A Retrospective CT-Based Study. Cureus 2024 Aug;16(8):e66161.
- Schlueter C, Budras KD, Ludewig E, Mayrhofer E, Koenig HE, Walter A, Oechtering GU. Brachycephalic feline noses: CT and anatomical study of the relationship between head conformation and the nasolacrimal drainage system. J Feline Med Surg 2009 Nov;11(11):891-900.
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