Clinical trials: Computed Tomography Scan
Genotoxicity, Cytotoxicity
Assessment of Cytotoxicity, Genotoxicity
Goal: The goal of this observational study is to evaluate the genotoxic and cytotoxic effects of OPG and CBCT on exfoliated buccal mucosal cells Main question: Does CBCT cause greater genotoxic and cytotoxic effects on buccal…
- Conditions
- Genotoxicity, Cytotoxicity, Ionizing Radiation Exposure, Dental X-Ray Exposure
- Trial name
- NCT07330401
- Where
- Malaysia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Yaxin Wang
Aortic Valve Stenosis
Metabolic Determinants of the Progression of Aortic Stenosis
Calcific aortic stenosis (AS) has become the most common cardiac disease after coronary artery disease and hypertension. Unfortunately no medical therapies have been proven to decrease either the progression of valve stenosis or…
- Trial name
- PROGRESSA (NCT01679431)
- Testing
- Doppler-echocardiography, Computed tomography, Magnetic resonance imaging
- Where
- Canada
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Laval University
Tooth Displacement
Retrieval of Displaced Mandibular Third Molar Teeth
The aim of this study is to compare multi-detector CT and CBCT as pre-surgical diagnostic imaging before surgical retrieval of iatrogenic displaced mandibular third molar teeth/roots.
- Trial name
- NCT06060522
- Testing
- CT, CBCT
- Where
- Egypt
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Tanta University
Visceral Fat, Fatty Liver
Visceral Abdominal Fat, Non Alcoholic Fatty Liver Diseases and Asymptomatic Coronary Atherosclerosis
Visceral fat or peri-omental fat is increasingly associated with metabolic syndrome, a condition carrying a high risk of coronary artery disease. The independent role of Visceral Fat in cardiovascular risk remains unclear.
- Conditions
- Visceral Fat, Fatty Liver, Atherosclerosis, Coronary Computed Tomography Angiography
- Trial name
- NCT01282892
- Testing
- excess of visceral fat, patients with NAFLD
- Where
- 2 sites in Israel
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Atherosclerosis and Blood Flow in Coronary Artery
Geometrical Influences on Atherosclerosis and Blood Flow
The study investigates the use of advanced imaging techniques and computational methods to identify high-risk plaques in coronary arteries.
- Trial name
- NCT07002697
- Where
- Bangladesh
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Bangladesh University of Engineering and Technology
Atherosclerosis of Coronary Artery, Cardiovascular Disease
Radiation Dose From Computed Tomography Before and After Implementation of a High Pitch Dual Spiral Technique
The purpose of this study is to compare the radiation exposure of a variety of chest CT examinations performed on the current state of the art CT scanners (64 slice, dual source CT scanner) with the radiation exposure for…
- Conditions
- Atherosclerosis of Coronary Artery, Cardiovascular Disease, Pulmonary Embolism, Aortic Aneurysm Without Mention of Rupture Nos
- Trial name
- FLASH (NCT01111760)
- Where
- United States
- Volunteers
- 334 people, healthy volunteers welcome
- Sponsor
- Michael Gallagher
Lung Cancers, Liver Cancer
AI-Assisted Non-Contrast CT for Multi-Cancer Screening
Cancer poses a major public health challenge in China. Early detection can improve treatment outcomes and survival rates. In this study, we will conduct a large-scale, prospective, multi-center cohort study to evaluate the…
- Conditions
- Lung Cancers, Liver Cancer, Gastric Cancers, Colorectal, Cancer
- Trial name
- NCT06632886
- Testing
- AI-Assisted Non-Contrast CT for Multi-Cancer Screening
- Where
- China
- Volunteers
- 1,000,000 people, healthy volunteers welcome
- Sponsor
- Guo ShiWei
Pancreatic Cancer, Intraductal Papillary Mucinous Neoplasm
Artificial Intelligence-powered Low-Dose Computed Tomography for Screening of Pancreatic Cancer
Pancreatic ductal adenocarcinoma (PDAC) has a poor prognosis, with early diagnosis crucial for improving survival. Due to the absence of effective screening methods, most patients are diagnosed at advanced stages.
- Conditions
- Pancreatic Cancer, Intraductal Papillary Mucinous Neoplasm, High-grade Pancreatic Intraepithelial Neoplasia, PDAC - Pancreatic Ductal Adenocarcinoma
- Trial name
- AI-LDCT-PC (NCT07117045)
- Testing
- Diagnostic Evaluation for Positive AI Findings
- Where
- 5 sites in China
- Volunteers
- 400,000 people, healthy volunteers welcome
- Sponsor
- Changhai Hospital
Guided Implant Placement, Delayed Implant
Qualitative and Quantitative Assessment of Marginal Bone Loss Following Flapless Guided Versus Conventional Implant Placement
Marginal bone preservation is an important determinant of long-term implant success. Conventional flap implant placement provides direct visualization of the surgical site but may disturb the periosteal blood supply and…
- Conditions
- Guided Implant Placement, Delayed Implant, CBCT Segmentation
- Trial name
- NCT07663045
- Testing
- Conventional Flap Implant Placement, Flapless guided implant
- Where
- United Arab Emirates
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Gulf Medical University
Osteoporosis, Liver Steatosis
China Action on Spine and Hip Status
1. To determine the prevalences of osteoporotic fracture in elderly Chinese population. 2. To determine the prevalences of osteoporosis in elderly Chinese population using QCT BMD measurement. 3.
- Conditions
- Osteoporosis, Liver Steatosis, Metabolic Syndrome, Obesity
- Trial name
- CASH (NCT01758770)
- Where
- China
- Volunteers
- 3,457 people, healthy volunteers welcome
- Sponsor
- Beijing Jishuitan Hospital
Sex Discrimination
Sex Determination From Scapula Using 3-D Computed Tomography in Sample of Sohag Governorate Population
One of the most difficult areas of forensic science is identifying individuals. Accurate sex estimation based on measurements of dimorphic dimensions in unknown human remains is a crucial first step toward making individual…
- Trial name
- NCT04991610
- Testing
- computed tomography
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
Alzheimer Disease
SV2A-PET/CT and PET/MRI Combined Clinical Criteria Score in the Diagnosis of Early Cognitive Alteration
Using SV2A-PET to character a cohort of patients with early cognitive impairment using the novel synaptic probe 18F-labeled difluoro-analog of UCB-J（also known as 18F-SDM-8）
- Trial name
- NCT06445582
- Testing
- [18F]SDM-8
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Anhui Provincial Hospital
Radiation
CODP Imaging From a Dose Perspective
The noncontrast-enhanced chest computed tomography (CT) is an emerging diagnostical tool in patient with chronic obstructive pulmonary disease (COPD).
- Trial name
- NCT03581110
- Testing
- computed tomography
- Volunteers
- 1,957 people, healthy volunteers welcome
- Sponsor
- Universitätsmedizin Mannheim
Lung Cancer
Early Detection of Lung Cancer With Low-dose Multislice Computed Tomography
Lung cancer is one of the leading causes of cancer-related death in Taiwan. Early diagnosis of lung cancer may improve cancer survival.
- Trial name
- NCT02754388
- Volunteers
- 1,334 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Automatic Registration of Digital Dental Model to CBCT Image
Automatic Versus Semiautomatic Registration of Digital Dental Cast to Cone Beam Computed Tomography Image
An observational Cross-sectional Study to compare the accuracy and reliability of the automatic registration of digital dental model to CBCT image versus the semiautomatic point-based registration.
- Trial name
- CBCT (NCT04563117)
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Cairo University
Osteoporosis
Diagnosis of Decreased Bone Density by Dental Cone Beam Computed Tomography
The purpose of this study is to elucidate the role of Dental Cone Beam Computed Tomography (CBCT) in assessment of bone density.
- Trial name
- NCT02303340
- Testing
- Dual Energy X-ray Absorptiometry
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Dental Implants
Anterior Mandibular Region for Immediate Implant Placement
Immediate implant placement has been proven to be a successful treatment modality, it is however considered a technique sensitive procedure, which mandates careful planning on basis of the recommended guidelines and thorough site…
- Trial name
- NCT06527950
- Testing
- no intervention
- Where
- Egypt
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Cairo University
Back Pain, X-rays
Natural Experiment: "Gentle Nudge" Intervention, Eliminating Phone Call Requirement
Back pain costs the U.S. over $100 billion annually, and much of this spending is wasteful due to the overuse of advanced diagnostic imaging.
- Conditions
- Back Pain, X-rays, MRI, CT Scan
- Trial name
- LBP-ED (NCT03381885)
- Testing
- Gentle Nudge, Usual Standard Procedure
- Volunteers
- 20,000 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Deep Learning, Sarcopenia
Application of Artificial Intelligence Algorithm Based on CT Imaging for Muscle Parameter Measurement
To establish an artificial intelligence model for automated diagnosis of sarcopenia based on CT imaging
- Conditions
- Deep Learning, Sarcopenia, Computed Tomography, Body Composition
- Trial name
- NCT06845462
- Where
- China
- Volunteers
- 1,080 people, healthy volunteers welcome
- Sponsor
- RenJi Hospital
Maxillary Expansion
Root Resorption After Maxillary Expansion
The aim of this study will to evaluate the root resorption after RME by hyrax and hybrid hyrax appliances by using of cone beam computed tomography .
- Trial name
- NCT06059807
- Testing
- maxillary expansion
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University