Open AccessEvaluation of lacrimal drainage system obstruction using combined multidetector CT and instillation dacryocystography
Author(s) -
Mohamed Shweel,
Ahmed Elshafei,
Raafat Mohy El-Din AbdelRahman,
Mahmoud Nassar
Publication year - 2012
Publication title -
the egyptian journal of radiology and nuclear medicine /the egyptian journal of radiology and nuclear medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.19
H-Index - 13
eISSN - 2090-4762
pISSN - 0378-603X
DOI - 10.1016/j.ejrnm.2012.04.005
Subject(s) - medicine , nasolacrimal duct , nasolacrimal duct obstruction , lacrimal sac , dacryocystorhinostomy , radiology , dacryocystitis , lacrimal apparatus , computed tomography , surgery , nuclear medicine
Aim of the workTo assess the use of combined multidetector computed tomography and instillation dacryocystography (CTDCG) in detection of the level lacrimal drainage system (LDS) obstruction.MethodsTwenty-one patients with one-sided epiphora were our candidates for CTDCG. Axial source and post processing images were assessed for clear viewing and the ability to detect the level of LDS obstruction. To our knowledge, no previous studies used this combination in the assessment of the LDS obstruction.ResultsAll patients tolerated the examination well. Various levels of LDS obstruction were detected, common canaliculus in 4 (19%) patients, lacrimal sac in 3 (14.2%), junction between lacrimal sac and NLD in 9 (42.8%) and NLD obstruction in 5 (23.8%) patients. The most common CTDCG findings were dilated opacified lacrimal sac with no opacification of the nasolacrimal duct (NLD) in 9/21 (42.8%) patients. Curved planner reformation (CPR) were excellent to detect the nasolacrimal duct (NLD) obstruction.ConclusionCTDCG is a non-invasive patient friendly procedure that adds benefit in documentation and preoperative planning