Clinical trials: Contrast Agent
Unspecified Disorder of Stomach and Duodenum
A Study to Evaluate the Safety and Efficacy of Oral Contrast Agent for Sonography
The goal of this clinical trial is to verify the safety and efficacy of Oral Contrast Agent for Sonography produced by Shandong Baiduo Medical Instruments Co., LTD.
- Trial name
- NCT05676164
- Testing
- KANG XIAN, TIAN XIA
- Where
- China
- Volunteers
- 280 people, healthy volunteers welcome
- Sponsor
- Shandong Branden Med.Device Co.,Ltd
Tumor
Clinical Application Value of Deep Learning-Based "Opportunistic Screening" for Malignant Tumors on Routine Non-Contrast Chest-Abdomen-Pelvis CT
This study aims to develop and validate a deep learning-based opportunistic multi-cancer screening system using routine non-contrast chest-abdomen-pelvis CT examinations, including CHANCE-Breast, CHANCE-Liver, CHANCE-Kidney, and…
- Trial name
- NCT07639567
- Where
- China
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- Lian Yang
Chronic Constipation, Slow Transit Constipation
MSOT and MRI for Non-invasive Assessment of Intestinal Transit Time in Children With Chronic Bowel Emptying Disorders
The project presented here is a monocentric clinical study conducted by the Pediatric Surgery and Pediatrics departments of the University Hospital Erlangen.
- Conditions
- Chronic Constipation, Slow Transit Constipation, Intestinal Transit Disorder, Hirschsprungs Disease
- Trial name
- NCT06911749
- Testing
- MSOT with ICG, MRI
- Where
- Germany
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Dr. med. Sonja Diez
Stroke, Sympathetic Disorder
Contrast Bath and Sympathetic Skin Response
This study evaluates the effects of contrast bath on sympathetic skin response in stroke patients with complex regional pain syndrome .
- Trial name
- NCT04198532
- Testing
- Contrast bath
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Healthy, Renovascular Hypertension
Magnetic Resonance Imaging for Evaluating Kidney Function
Renovascular hypertension (RVH) is a potentially curable disease affecting 0.5-5 percent of patients with hypertension. The current diagnostic work-up of RVH involves a complex algorithm which includes doppler ultrasound…
- Trial name
- NCT00006173
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Breast Cancer
CEM to Reduce Biopsy Rates for Less Than Highly Suspicious Breast Abnormalities: a Prospective Study
One of the primary criticisms of mammography is that it leads to unneeded stress and anxiety from identification and biopsy of non-cancerous findings.
- Trial name
- NCT05206331
- Testing
- contrast enhanced mammography, Iodinated Contrast Media (ICM)
- Where
- United States
- Volunteers
- 2,089 people, healthy volunteers welcome
- Sponsor
- Margarita Louise Zuley
Perforator Flap Surgery
Comprehensive Imaging of Perforator Vessels and Subcutaneous Vascular Network With No-Exogenous Contrast and Non-Ionizing-Radiation Magnetic Resonance Angiography
In this study the investigators plan to enroll a total of 25 evaluable volunteers (volunteer population) for the development and optimization of perforator imaging protocols and 50 evaluable clinical patients receiving flap…
- Trial name
- NCT03567018
- Testing
- MRI Scan
- Where
- 2 sites in United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- University of Cincinnati
No Disease or Condition is Being Studied
French Contrast Versus Oregon Circuit Training in Competitive Football Players
This randomized, two-arm, parallel-group clinical trial is designed to compare French Contrast Training (FCT) with Oregon Circuit Training (OCT) for improving explosive strength, lower-limb power, and agility in competitive…
- Trial name
- FCT-OCT (NCT07865702)
- Testing
- French Contrast Training, Oregon Circuit Training
- Where
- Pakistan
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Superior University
Healthy
Technical Development of Interventional Cardiovascular Magnetic Resonance Imaging in Normal Volunteers
This study will test new techniques to image the heart, blood vessels, and legs using magnetic resonance imaging (MRI). The techniques will be used to plan and guide treatments using minimally invasive methods.
- Trial name
- NCT00720460
- Where
- United States
- Volunteers
- 107 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Breast Cancer
Breast Cancer Screening With Diffusion-weighted MRI in Women at High Risk for Breast Cancer
A prospective observational multicenter study to compare the outcome of breast cancer surveillance using mammography, breast US, contrast-enhanced MRI, and diffusion-weighted MR imaging (DWI) as a screening tool, in the high-risk…
- Trial name
- NCT03835897
- Where
- South Korea
- Volunteers
- 890 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Refractive Errors
Comparison of Higher Order Aberrations and Contrast Sensitivity Between Acrysof SN60AT, SN60WF and Restore Intraocular Lenses
This project involves evaluation of post operative contrast sensitivity and wavefront aberration results among patients implanted with standard monofocal lenses (Acrysof SN60AT/SN60WF) and the new presbyopic correcting multifocal…
- Trial name
- NCT00345085
- Testing
- Wavefront and Contrast Sensitivity
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Cataract, Signs and Symptoms
Spherical Aberration and Contrast Sensitivity in IOLs
Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified anterior aspheric surface results in reduced spherical aberration and improved contrast sensitivity after cataract surgery.
- Conditions
- Cataract, Signs and Symptoms, Pseudophakia, Lens Diseases
- Trial name
- IOLs (NCT00576485)
- Testing
- Cataract surgery and intraocular lens implantation
- Where
- Brazil
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Federal University of Minas Gerais
Primary Pterygium
The Effects of Primary Pterygium on Contrast Sensitivity Preoperatively and Postoperatively
Pterygium is the growth of conjunctival tissue onto the cornea, usually from the nasal quadrant of the cornea.Visual acuity may be reduced due to direct invasion of the visual axis or astigmatism induced by the pterygium.
- Trial name
- NCT03406390
- Testing
- Pterygium surgery
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Partial-edentulism
Reconstruction of Localized Alveolar Ridge Defects
The aim of the present prospective randomized controlled study is to compare the clinical, radiological, micro-circulation, and histology of a novel, semi-thick, and conventional full-thickness mucoperiosteal flap technique…
- Trial name
- NCT05538715
- Testing
- Split-thickness group, Full-thickness group
- Where
- Hungary
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Semmelweis University
Amblyopia
Combining Donepezil With Perceptual Learning in Normal and Amblyopic Human The Effect of Donepezil on Perceptual Learning in Adult Amblyopia
The research deals with amblyopia or lazy eye, a condition that affects about 3% of the population, and results in a variety of visual deficits.
- Trial name
- NCT03109314
- Testing
- Donepezil, Single-letter training, Uncrowd training
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Dennis Levi
Nicotine Dependence, Vaping
Influence of the Consumption of Conventional and Electric Cigarettes on Skin Circulation
The survey participants are divided into a smoking and non-smoking group. The smoker group is further divided according to the quantity and quality of nicotine ("normal" smoking, vaping).
- Conditions
- Nicotine Dependence, Vaping, Smoking
- Trial name
- NCT04645914
- Testing
- Use of nicotine product (smoking/vaping)
- Where
- Germany
- Volunteers
- 198 people, healthy volunteers welcome
- Sponsor
- University Hospital Muenster
Pulmonary Embolism
Assessment of Contrast Enhancement Boost for the Direct Identification of Pulmonary Emboli in Thoracic CT Angiography
Pulmonary embolism is a common cardiovascular disease and thoracic CT angiography is currently considered the gold standard for its non-invasive diagnosis.
- Trial name
- NCT04654156
- Testing
- Contrast Boost post processing technique
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Central Hospital, Nancy, France
COVID-19
Efficacy of Sunlight Activated Synthetic Porphyrin in COVID-19 Infected Patients
Efficacy of Sunlight Activated Synthetic Porphyrin in COVID-19 Infected Patients (SnPPIX) Mahmoud ELkazzaz(1),Rokia yousry abdelaziz sallam(2)…
- Trial name
- SnPPIX (NCT04371822)
- Testing
- SnPP Protoporphyrin plus Sunlight exposure, Sulfonatoporphyrin(TPPS) plus Sunlight exposure.
- Where
- Egypt
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Kafrelsheikh University
Osteoarthritis of Acromioclavicular Joint
Ultrasound Examination and Guided Injection Into the Acromio-clavicular Joint
Is it possible to improve the accuracy of injection into the acromio-clavicular joint with the use of ultrasound?
- Trial name
- NCT01628796
- Testing
- contrast material injection
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- The Baruch Padeh Medical Center, Poriya
Invasive Breast Cancer
Radiomic Markers for Breast Cancer Metastasis and Treatment Response Using MRI
The primary aim of the study is to identify radiomic features as biomarkers of metastatic progression following primary therapy.
- Trial name
- NCT03709186
- Where
- Canada
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sunnybrook Health Sciences Centre