Dacryocystography using cone beam CT in patients with lacrimal drainage system obstruction.
OBJECTIVE
To assess the usefulness of cone beam CT (CBCT) for dacryocystography (DCG) using either direct syringing or passive application of contrast medium.


METHODS
Ten consecutive patients with epiphora who had CBCT-DCG in a sitting position were retrospectively analyzed. CBCT-DCGs were performed using 2 techniques: direct syringing with contrast medium or using the passive technique, where patients received 3 drops of contrast medium into the conjunctival sac before CBCT-DCG. Clinical and radiologic diagnoses were compared for both groups.


RESULTS
The 10 patients (men = 3) had a mean age of 63.2 years. Both techniques proved to be simple procedures with good delineation of the bone, soft tissue, and the contrast medium in the lacrimal system. No side effects were noted.


CONCLUSIONS
CBCT-DCG is a useful alternative to determine the localization of stenosis in patients with chronic epiphora.
*Department of Ophthalmology, University Basel, University Hospital Basel, Basel; †Department of Ophthalmology, University Bern, Inselspital, Bern; ‡Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland; §OMFS IMPATH research group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven, Leuven, Belgium; and ‖Institute for Clinical Epidemiology & Biostatistics, University Hospital Basel, Basel, Switzerland.
Markus
M
Tschopp
Michael M
MM
Bornstein
Pedram
P
Sendi
Reinhilde
R
Jacobs
David
D
Goldblum
D000368:Aged; D054893:Cone-Beam Computed Tomography; D003287:Contrast Media; D003608:Dacryocystorhinostomy; D004322:Drainage; D005260:Female; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000000981:diagnostic imaging* / Q000601:surgery; D011187:Posture; D012189:Retrospective Studies; D007507:Therapeutic Irrigation
D003287:Contrast Media