A New Method of Evaluating Lacrimal Drainage

Quantitative lacrimal scintillography. I. Method and physiological application.

“…A technique using a radioactive tracer instilled into the conjunctival sac and visualization with an Anger gamma camera is a more sensitive method for evaluating the dynamics of lacrimal drainage (Rossomondo, Carlton, Trueblood, and Thomas, 1972). The purpose of the present study was to improve the diagnostic value by including quantitative criteria for lacrimal drainage by utilizing a computer interfaced to the gamma camera.…”

The role of “after washing imaging” in evaluation of tear drainage system by dacryoscintigraphy

“…This technique has some Original advantages including safe and simple procedure, high sensitivity, high patient tolerance, low radiation dose to eye lens, however, the spatial resolution of this nuclear method is low and precise anatomical evaluation is not possible. This modality has been performed by instilling radiotracer in the inferior fornix of each eye and imaging of the ocular region with a gamma camera since 1972 and can detect the site of obstruction which help ophthalmologists to choose the best form of therapy [12,13].…”

Specific features of endoscopic dacryocystorhinostomy – case report

“…The CT-or MRI-DCG can determine if an anatomic obstruction exists within the outflow system, where the obstruction occurs, and gives excellent anatomic details, being of great help . On the other hand, the DSG performed with technetium-99m pertechnetate or technetium-99m-labeled sulfur colloid has a low resolution and lack of anatomical details 8,9 . In our cases, we used the Jones test, probing and irrigation associated with a cranio-facial CT or MRI scan.…”