X-ray-free Protocol for Pectus Deformities Based on Magnetic Resonance 1 Imaging and a Low-cost Portable Three-dimensional Scanning Device

University of Limoges (UL)

Status: Completed

Conditions: Pectus Deformity

Treatments: Device: chest CT; Device: Magnetic Resonance Imaging and a low-cost portable three-dimensional scanning device

Study type: Interventional

Funder types: Other

Identifiers

NCT04885387

Ballouhey Xray

Details and patient eligibility

About

Pectus excavatum (PE) and pectus carinatum (PC) are the most frequent chest wall deformities in humans. They are usually clinically recognized in early childhood or adolescence, with aggravation during the pubertal growth spurt. PE is a depression of the anterior chest wall, most frequently involving the lower sternum.

In this study we use simultaneously compared chest CT, MRI, and 3D scanning fro both PE and PC assessment .

The aim of this study is to compare a standard protocol using chest CT to a non-irradiant protocol with 3D scanning and MRI.

The primary endpoint was to assess the inter observer concordance and the correlation between the HI (Haller Index) evaluated with MRI and the EHI (External Haller index) evaluated with 3D scanning. The secondary endpoints were to assess the concordance with chest CT the variation of the HI evaluated in inspiration and expiration with MRI and also the correction index (CI) between chest CT and MRI in the PE group, .

Enrollment: 11 patients

Sex: All

Ages: Under 17 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• children (< 18 years of age)
• with a pectus deformity
• recent (within the past month) chest CT, cardiothoracic MRI, and 3D scanning data were available.

Exclusion criteria

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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11 participants in 2 patient groups

Standard protocol using chest CT

Other group

Treatment:

Device: chest CT

Magnetic Resonance Imaging and a low-cost portable three-dimensional scanning device

Experimental group

Treatment:

Device: Magnetic Resonance Imaging and a low-cost portable three-dimensional scanning device