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Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

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[CT dacryocystography: normal findings and pathology].

F Bonnet¹, A Ducasse, C Marcus

¹Service de Radiologie, Hôpital Robert Debré, Reims, France. fbonnet@chu-reims.fr

Journal De Radiologie

|December 3, 2009

Summary

CT dacryocystography is a well-tolerated imaging technique for persistent tearing when other methods are uncertain. It helps diagnose causes like stenosis or dacryoliths and evaluates surrounding structures before surgery.

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Area of Science:

Ophthalmology
Radiology
Medical Imaging

Background:

Persistent tearing can significantly impact quality of life.
Non-invasive clinical examinations may not always determine the cause of lacrimal drainage system obstruction.

Purpose of the Study:

To highlight CT dacryocystography as a key imaging modality for evaluating persistent tearing.
To detail the indications, techniques, and diagnostic utility of CT dacryocystography.

Main Methods:

CT dacryocystography performed under sterile technique with local anesthesia.
Utilizing either contrast instillation or direct cannulation techniques.
Evaluation of the nasolacrimal system and surrounding anatomical structures.

Main Results:

CT dacryocystography is well-tolerated by patients.
Identifies common causes of obstruction such as non-specific idiopathic stenosis and dacryoliths.
Facilitates assessment of adjacent structures to prevent surgical complications.

Conclusions:

CT dacryocystography is the imaging technique of choice for persistent tearing when lacrimal drainage patency is uncertain.
It is crucial for diagnosing dacryoliths, tumors, and evaluating outcomes after dacryocystorhinostomy.
Provides essential pre-surgical anatomical detail for improved patient outcomes.