Clinical trials: Artifacts
Bladder Cancer, Bladder Cancer Stage I
Loop Resection or Cold-cup Biopsy? A Study Comparing the Accuracy of Muscle Samples During Bladder Tumor Surgery
In this report the investigators compared two deep muscle sampling methods (Loop resection and Cold-Cup Biopsy) during endoscopic resection of bladder tumors for patients with suspected bladder cancer in Tygerberg hospital.
- Conditions
- Bladder Cancer, Bladder Cancer Stage I, TURBT
- Trial name
- NCT06796413
- Testing
- Loop Resection or Cold-cup biopsy
- Where
- South Africa
- Volunteers
- 120 people
- Sponsor
- University of Stellenbosch
Spinal Disease
Virtual Single-energy Imaging and De-metallic Artifact Technology in Reducing Spinal Metallic Artifacts
1. Compare the effect of virtual single energy imaging and virtual single energy combined with MAR technology to remove metal artifacts in the spine. 2.
- Trial name
- NCT04955483
- Testing
- Virtual single energy combined with MAR reconstruction group
- Where
- China
- Volunteers
- 43 people
- Sponsor
- Peking University Third Hospital
Metal Artifacts
Effect of Metal Artifacts Reduction Orotocols and Electric Potential Difference on Metal Artifacts in Cone Beam Computed Tomography
The effect of metal artifacts reduction protocols and tube potential difference on the metallic artifacts in cone beam computed tomography
- Trial name
- DTA (NCT03726970)
- Testing
- CBCT radiation
- Where
- Egypt
- Volunteers
- 2 people
- Sponsor
- Cairo University
Pediatric Abdominal Pain
Intelligent Accelerated MRI for Pediatric Abdominal Pain
The goal of this observational study is to evaluate the effectiveness of an intelligent accelerated MRI technique in children with abdominal pain.
- Trial name
- IA-MRI (NCT07164651)
- Testing
- Accelerated MRI scanning
- Where
- China
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Yaqi Shen，MD，PhD
Metal Artifacts, Implant
Effect of FOV and mA on Metal Artifacts on CBCT
The aim of this study is to evaluate the effect of exposure parameters as milliampere (mA) and field of view (FOV) in CBCT on metal artifact of dental implant.
- Trial name
- NCT04935944
- Testing
- CBCT radiation
- Where
- Egypt
- Volunteers
- 4 people
- Sponsor
- Cairo University
Spinal Disease
CT Mar Technology and MR Mavric, Semac Sequence in Removing Artifacts of Orthopedic Metal Internal Fixation
1. Objective to compare the effect of single energy imaging and mar technology in reducing artifacts of knee and hip replacement, and to explore the appropriate keV range of Mar technology in removing metal artifacts.,2.
- Trial name
- NCT04954963
- Testing
- Reduce metal artifacts examination
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Peking University Third Hospital
Registration Accuracy
Assessment of the Artifical Intelligence Assisted Registration Versus Conventional Point Based Registration on Cone Beam-computed Tomography (CBCT) With Heavy Metal Artifacts
Our study investigates the accuracy and duration needed for 3D model registration using artifical intelligence (AI) assistance compared to conventional point-based registration.
- Trial name
- NCT06273332
- Testing
- AI-assisted registration, Point-based registration
- Where
- Egypt
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Anxiety, Sedation
Preparing Kids for MRI Using VR
Children frequently exhibit pre-MRI anxiety that can cause motion, repeated sequences, prolonged room time, and exposure to sedation.
- Conditions
- Anxiety, Sedation, Child, Virtual Reality
- Trial name
- NCT07203716
- Testing
- Virtual Reality Orientation (Home+Booster), Virtual Reality Orientation (Pre-Scan Only), Usual Care (No VR)
- Volunteers
- 150 people
- Sponsor
- Haseki Training and Research Hospital
Intensive Care Units, Neonatal, Infant, Newborn
Heterogeneity Index in Neonatologist-performed Lung Ultrasound in Neonates Receiving Respiratory Support - a Pilot Study
Lung ultrasound is an increasingly valuable diagnostic tool in neonatal intensive care due to its safety and accessability. This pilot study investigates whether a quantitative approach - the heterogeneity index, previously only…
- Conditions
- Intensive Care Units, Neonatal, Infant, Newborn, Infant, Premature, Point-of-Care Systems
- Trial name
- NPLUS HI (NCT07117513)
- Where
- 2 sites in Austria
- Volunteers
- 40 people
- Sponsor
- Medical University of Graz
Child Development, Adhd
Reducing Head Motion With Customized Head Mold in Young Children
The purpose of this study is to assess the safety and efficacy of a customized head mold for reducing head motion during MRI scanning in young children.
- Conditions
- Child Development, Adhd, Neuroimag
- Trial name
- NCT04817059
- Testing
- Caseforge headcase
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Texas at Austin
Healthy
Magnetic Resonance Imaging of the Brain in Emotional Processing
This study will use magnetic resonance imaging (MRI) to identify brain regions involved in performing certain tasks, especially those involving emotions.
- Trial name
- NCT00061204
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Healthy, Tomography
Effect of Respiratory Motion on Positron Emission Tomography Imaging
This study will determine how breathing motions may affect positron emission tomography (PET) scans. It has been discovered that the quality of PET scans varies according to which part of the breathing cycle patients hold their…
- Conditions
- Healthy, Tomography, Emission Computed
- Trial name
- NCT00088361
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- National Institutes of Health Clinical Center (CC)
Breast Cancer, Interventional Radiology
Using Color Doppler US Artifact to Identify Tumor Markers
Before neoadjuvant chemotherapy (NACT) in cases of locally advanced breast cancer, malignant masses in the breast and biopsy-proven tumor involvement axillary lymph nodes are marked with metallic markers.
- Conditions
- Breast Cancer, Interventional Radiology, Doppler Ultrasound
- Trial name
- NCT06166173
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Istanbul Medeniyet University