MRI and 3D imaging of the mimic musculature

MRI and 3D imaging of the mimic musculature - MRI and 3D imaging of the mimic musculature

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON51452

Enrollment

Registered

2022-05-25

Start date

2022-07-27

Completion date

Unknown

Last updated

2024-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Retromaxillie, verticale maxillaire hyperplasie en schisis mimic musculature

Interventions

None listed

Eligibility

Age

18 Years to 64 Years

Inclusion criteria

Inclusion criteria: age between 18 and 40 years

Exclusion criteria

Exclusion criteria: surgery or trauma to the face or orthodontic treatment in the past claustrophobia physically or mentally incapable for MRI pregnancy

Design outcomes

Primary

Measure	Time frame
1. To investigate whether it is possible to identify the small mimic muscles independently of each other. The origins and insertions of all the mimic muscles on 7 Tesla MRI images will be determined by two investigators by consensus, and independently by a third investigator.	—

Secondary

Measure	Time frame
2. To investigate whether localization of the origins and insertions can be standardized. Standardization is considered to be possible if the origin or insertion is placed at the same anatomical landmark on bony structures and landmarks on the skin for all ten subjects. 3. To investigate whether it is possible to superimpose MRI images and 3D photographs using the computer program 3dMedX, as done previously with CT scans, and what the accuracy of this method will be. 4. To determine which muscles cause a specific facial expression by researching the vectors of facial landmarks and compare these to the vectors of the mimic muscles, thereby trying to connect the course of a muscle with the facial expression to reveal the function of a muscle. 5. To determine the duration a volunteer can hold a certain facial expression. This will be measured by taking a 3D picture of the face in the facial expression, with intervals of 30 seconds, and a maximum duration of 5 minutes. A change is defined as a deformation of the facial surface area of more than 3 mm, measured by surface heat maps from the computer program 3dMedX.	—

Measure

Time frame

2. To investigate whether localization of the origins and insertions can be standardized. Standardization is considered to be possible if the origin or insertion is placed at the same anatomical landmark on bony structures and landmarks on the skin for all ten subjects. 3. To investigate whether it is possible to superimpose MRI images and 3D photographs using the computer program 3dMedX, as done previously with CT scans, and what the accuracy of this method will be. 4. To determine which muscles cause a specific facial expression by researching the vectors of facial landmarks and compare these to the vectors of the mimic muscles, thereby trying to connect the course of a muscle with the facial expression to reveal the function of a muscle. 5. To determine the duration a volunteer can hold a certain facial expression. This will be measured by taking a 3D picture of the face in the facial expression, with intervals of 30 seconds, and a maximum duration of 5 minutes. A change is defined as a deformation of the facial surface area of more than 3 mm, measured by surface heat maps from the computer program 3dMedX.

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Countries

Netherlands

Outcome results