Clinical trials: Three-Dimensional
Growth Modification
Three-Dimensional Assessment of Dentoskeletal Changes Associated With a Modified Twin Block Appliance
The aim of the current study is to evaluate the skeletal, dental, soft tissue, TMJ, and upper airway size changes associated with a new design of twin block compared to the conventional twin block appliance.
- Trial name
- NCT06589206
- Testing
- modified design of twin block
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Orthodontic Appliance Complication
Microbial Colonisation On Vacuum-Formed Retainers Constructed On Conventional Models And Three Dimensional (3D) Reconstructed Models
Vacuum-formed retainers are clear or transparent retainers, that hold the teeth in the new position after active orthodontic treatment.
- Trial name
- NCT03844425
- Testing
- Conventional VFR, VFR from SLA, VFR from FDM
- Where
- Malaysia
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Malaya
Anterior Cruciate Ligament Reconstruction;Resting State Functional Magnetic Resonance;Three-dimensional Gait Analysis;Return to Sports
The Establishment of Advanced Brain Function Evaluation Model for Anterior Cruciate Ligament Reconstruction
It is difficult to establish the standard of return to sports post anterior cruciate ligament (ACL) reconstruction. The amplitude of low frequency fluctuation (ALFF) and functional connectivity (FC) of resting state functional…
- Trial name
- NCT04715672
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Congenital Heart Disease
Real-time 3-Dimensional Echocardiography for Assessment of Cardiac Function and Congenital Heart Disease
The propose of this study is to generate normative data of the tree-dimensional echocardiographic(3-DE) measurements for cardiac structure and function in a large cohort of normal infants, children,and adolescents.
- Trial name
- 3DE-CHD (NCT01300221)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Drexel University
Pectus Excavatum
Quantification of Chest Wall Changes After Nuss Bar Removal Utilizing Three-dimensional Optical Surface Scans
Pectus excavatum is the most common anterior chest wall deformity that affects up to 1:400 of newborns. If an operative correction is indicated, patients are often operated via the Ravitsch or Nuss bar procedure. The latter (i.e.
- Trial name
- CHEST (NCT04052321)
- Testing
- 3D optical surface scan
- Where
- Netherlands
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Zuyderland Medisch Centrum
Unilateral Spastic Cerebral Palsy
"Be an Airplane Pilot": A Bimanual 3D Motion Analysis in Children With Unilateral Cerebral Palsy
Cerebral Palsy, in particular in its unilateral spastic form (uCP), is the main cause of motor disability in children, with a prevalence of 2/1000 births.
- Trial name
- BE-API (NCT03888443)
- Testing
- Bimanual 3D Motion Analysis " Be-API "
- Where
- France
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Rennes University Hospital
Class II Malocclusion, Division 1
3D Evaluation of Powerscope Appliance in Treatment of Skeletal Class 2 Malocclusion
The study is aiming to evaluate the efficacy of Powerscope appliance in treatment of skeletal Class 2 malocclusion by three-dimensional image.
- Trial name
- Powerscope app (NCT04972084)
- Testing
- Powerscope group
- Where
- Egypt
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Amblyopia, Strabismus
Screening for 3-D Visual Disorders in Preschool Children
Visual screening is necessary among pre-school children as they found themselves in a critical period of visual developement. To date, there are no national vision screening program that has been implemented nationwide.
- Conditions
- Amblyopia, Strabismus, Anisometropia
- Trial name
- VISION (NCT05204069)
- Testing
- Instillation of cyclopentolate
- Where
- France
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Healthy
3D Ultrasound Validation for Measuring Stomach Volume
The goal is to study the accuracy of 3-dimensional ultrasound (which does not involve radiation) to measure the size of the stomach, comparing it with a previously validated method that involves radiation.
- Trial name
- 3DUSstomach (NCT00588224)
- Testing
- 3D ultrasound
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Facial Palsy
Development and Application of a Dynamic Three-dimensional Quantitative Facial Measurement Device
The aim of this project is to successfully develop and industrialise the "Facial Movement 3D Dynamic Quantitative Measurement Device", which is a commercial device that can provide dynamic indicators of facial movement, and can…
- Trial name
- NCT05981651
- Testing
- non-intervention
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Peking Union Medical College Hospital
Congenital Heart Disease, Bicuspid Aortic Valve
Abnormal 3-D MRI Flow Patterns in Adolescents Patients With Bicuspid Aortic Valve
Bicuspid aortic valve (BAV) is a form of congenital heart disease (the person is born with it). With BAV, the heart valves in the aorta (the blood vessel that takes blood away from the heart to the body) are not formed right.
- Trial name
- NCT00412386
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Emory University
Spine Deformity, Scoliosis
The Effect of Three-dimensional Exercise (Schroth Exercise) on Diaphragm Thickness in Adolescent Idiopathic Scoliosis Patients
Spinal deformity is common in childhood and adolescence, and can often present as scoliosis or increased thoracic kyphosis deformity with various etiologies.The diaphragm is the main respiratory muscle, and diaphragm contraction…
- Conditions
- Spine Deformity, Scoliosis, Scoliosis Idiopathic, Scoliosis; Adolescence
- Trial name
- NCT06417944
- Testing
- Scoliosis study form, Scoliosis X-ray (orthorontgenogram), Pulmonary function test
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Gaziosmanpasa Research and Education Hospital
Cardiomyopathies
Body Surface Area Prediction Impacts on Ventricular Dilatation Prevalence
The goals of this observational study are to investigate the accuracy of different predictive equations for body surface area (BSA) estimation and to evaluate the impact of different BSA normalizations on ventricular dilatation…
- Trial name
- NCT06939205
- Testing
- Assessment of body surface area and assessment ventricular dilatation prevalence
- Where
- Italy
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- University of Turin, Italy
Swelling
Effect of Steroid for the Postoperative Swelling After Orthognathic Surgery
Postoperative swelling is one of most common concerns to plastic and oromaxillary surgeons after orthognathic surgery. The purpose of this study is to develop a steroid regimen protocol for minimizing postoperative facial…
- Trial name
- NCT01431014
- Testing
- Dexamethasone"low-dose", Dexamethasone"high-dose"
- Where
- Taiwan
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Choroid
Three-dimensional Choroidal Vascularity Index in Common Fundus Diseases
Explore the changes of choroidal blood perfusion in common fundus diseases by three-dimensional choroidal vascularity index, an optical coherence tomography (OCT) parameter.
- Trial name
- NCT04790084
- Testing
- no intervention
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Renmin Hospital of Wuhan University
Left Ventricular Function Good
Left Atrial Volume and Function in Children Assessed by Echo 3DRT: Reference Values for Normal Children
The investigators study is trying to find the normal value to left atrial volume and left atrial function in healthy children by tridimensional real time echocardiography avaluation.
- Trial name
- NCT01481415
- Where
- 2 sites in Brazil
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Hospital Israelita Albert Einstein
Stereoscopic Vision
2D Versus 3D Laparoscopic Training on a Virtual Reality Simulator
Laparoscopy training programs with virtual reality simulators are widely used before new surgeons are allowed to operate on patients.
- Trial name
- NCT02361463
- Testing
- 3D vision, 2D vision
- Where
- Denmark
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Larynx, Oxygen
Relationship of Cricoid With the Right and Left Bronchial Diameters in the Pediatric Population Using Three-dimensional Imaging.
Specific and objective guidelines for choosing endobronchial tube size for main-stem intubation in pediatric patients are lacking.
- Conditions
- Larynx, Oxygen, Intubation
- Trial name
- NCT03030781
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Development, Infant, IMAGE
3D Craniofacial Morphologic Development of Healthy Infants
Healthy infants were enrolled to receive three dimensional craniofacial photography regularly at their age of one month, two month, four month, six month, nine month and twelve month.
- Conditions
- Development, Infant, IMAGE, Craniofacial Asymmetry, Plagiocephaly
- Trial name
- NCT05004597
- Testing
- three dimensional photography using a 3dMDHead System (3dMD, Atlanta, GA, USA)
- Where
- Taiwan
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Small Intestine Length Measurement
Digital 3D Reconstruction Predicts Small Bowel Length
The prevalence of type 2 diabetes mellitus (T2DM) has been increasing annually worldwide, and the prevalence of diabetes has reached 11.6% in China.
- Trial name
- DTDRPSBL-BS (NCT05338567)
- Testing
- Small intestine length measurement method
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Daping Hospital and the Research Institute of Surgery of the Third Military Medical University