The Effect of Patient Position on the External Haller Index Value Among Patients With Pectus Excavatum
Trial Snapshot
- Phase
- Not Applicable
- Sponsor
- Enrollment
- 12
- Locations
- 1
- Primary Endpoint
- Patient position
Study Overview
Brief Summary
Pectus excavatum is the most common anterior chest wall deformity, affecting up to 1:400 of newborns. The current gold standard to quantify the extent of deformity is by calculating the Haller Index based on a Computed Tomography (CT)-scan. However, as such scans inescapably imply exposure to ionizing radiation, novel imaging techniques have been investigated. Three-dimensional optical surface scanning is a promising new technique to acquire the trunks' three-dimensional (3D) surface topography. Based on this 3D scan, one is able to calculate the external Haller Index that is known to highly correlate with the conventional gold standard Haller Index that is based on internal measures. Both the conventional and external Haller Index are known to be affected by the respiratory phase in which the scan is acquired, however, what is the effect of patient position on the external Haller Index, and if affected, how should one correct for this phenomenon? To investigate this, a retrospective single-centre pilot study will be conducted.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Retrospective
Eligibility Criteria
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Patients that received a three-dimensional optical surface scan to quantify their pectus deformity
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Patient position
Time Frame: 5 months
The effect of patient position on the value of the external Haller Index, based on 3D scans.
Secondary Outcomes
- Manual versus automatic alignment of patient position(5 months)