Nasolacrimal duct obstruction-related disease, mainly including chronic dacryocystitis and epiphora
Conditions
Interventions
Single-arm Observational Group:None
Sponsors
Eye Hospital, Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Clinically diagnosed with nasolacrimal duct obstruction, chronic dacryocystitis, or other lacrimal drainage system disorders scheduled for En-DCR treatment; 2. Age 18 or older, any gender; 3. Completed preoperative thin-slice CT scans of the nasal cavity and tear ducts, with image quality sufficient for 3D reconstruction and measurements; 4. Able to cooperate in completing all data collection tasks for this study; 5. Voluntarily participating in this study and signing the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Poor CT image quality, making lacrimal sac segmentation, key anatomical landmark annotation, or subsequent measurement and analysis impossible; 2. Combined severe nasal cavity structural defects, large-scale space-occupying lesions, or significant anatomical abnormalities, where key anatomical landmarks cannot be identified; 3. Previous surgeries or injuries in the lacrimal duct area causing obvious local anatomical changes, making standardized data analysis impossible.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Consistency between preoperative quantitative planning and intraoperative anatomical exposure; | — |
Secondary
| Measure | Time frame |
|---|---|
| Generation of individualized preoperative planning images;Intra-observer repeatability and inter-observer agreement;Acquisition of quantitative parameters; | — |
Countries
China
Contacts
Public ContactYikui Zhang
Eye Hospital, Wenzhou Medical University
Outcome results
None listed