Clinical trials: Image Quality
Modulation Transfer Function, Visual Acuity
MTF Image Modifications
Human visual acuity and contrast sensitivity are highly dependent on various different parameters. Each should be optimized for perfect visual performance.
- Conditions
- Modulation Transfer Function, Visual Acuity, Contrast Sensitivity
- Trial name
- NCT01926704
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Electrocardiogram
iECG: Recording Chest Leads Using a Smartwatch With a Digital Image Processing Algorithm
The purpose of this study is to evaluate the feasibility of a new method for self-recordable ECGs using a smartwatch coupled with an image processing algorithm.
- Trial name
- iECG (NCT05425342)
- Testing
- Smartwatch ECG
- Where
- Switzerland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
Stereoscopic Vision
Subjective Image Quality in Stereoscopic Image Modifications
Humans attain binocular vision from the two retinal images of both eyes through a series of sensory and motor processes that culminate in the perception of stereoscopic depth.
- Trial name
- Stereopsis (NCT01624415)
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Lenses, Intraocular Sensitivity
A Pilot Study Investigating the Impact of Different IOL Designs on Subjective 2D and 3D Image Quality
The WHO, states that age related cataracts account for 51 percent of worldwide blindness and affect about 20 million people. Surgery with intraocular lens (IOL) implantation is the first line treatment for cataracts, thus there…
- Conditions
- Lenses, Intraocular Sensitivity, Visual Acuity
- Trial name
- NCT02409641
- Testing
- Cyclopentolatehydrochloride 0,5% eye drops
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Brain Imaging, Whole Body Imaging
Improving PET Image Quality and Quantification by Using Motion Correction, Parametric Imaging and MAP Reconstruction
The purpose of this study is to assess the effectiveness of new software available on a new PET/CT scanner in the Molecular Imaging Research PET/CT Facility.
- Trial name
- NCT04417998
- Testing
- 18F-FDG, 18F-AV1451, Siemens E7 Reconstruction Tool
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Laparoscopic Surgical Procedures
Comparison of Single İncision Laparoscopic Cholecystectomy Versus Laparoscopic Cholecystectomy
The aim of this study is to compare outcomes of quality-of-life measures and evaluate the body image and cosmesis between Single Incision Laparoscopic Cholecystectomy (SILC) and Conventional Laparoscopic Cholecystectomy…
- Trial name
- NCT02417857
- Testing
- Laparoscopic Cholecystectomy (Single Incision), Laparoscopic Cholecystectomy (Conventional)
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Ankara Mevki Military Hospital
Colorectal Cancer Screening, Colonic Polyps/Colonoscopy/Colorectal Neoplasms
The Impact of Image-Assisted Colonoscope on Patient Experience, Physician Workload, and Examination Quality
Colonoscopy is the cornerstone for colorectal cancer screening, diagnosis, and post-treatment surveillance. Procedural quality is influenced by patient anatomy, particularly variations in colonic configuration such as sigmoid…
- Conditions
- Colorectal Cancer Screening, Colonic Polyps/Colonoscopy/Colorectal Neoplasms, Difficult Colonoscopy, Colonoscopy-Related Discomfort
- Trial name
- LOOP-p1 (NCT07541924)
- Testing
- CT-Based Image-Assisted Colonoscope Insertion
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- DONG WU
Contrast Enhanced Ultrasound, Ultrasonic Diagnosis
International Delphi Study to Develop Standardized Quality Criteria and a Rating Tool for Liver CEUS Image Quality Assessment
This study aims to establish international consensus-based quality criteria for contrast-enhanced ultrasound (CEUS) examinations of the liver and to develop a standardized tool for assessing CEUS image and examination quality.
- Conditions
- Contrast Enhanced Ultrasound, Ultrasonic Diagnosis, Liver
- Trial name
- ICON LiverCEUS (NCT07656181)
- Where
- Switzerland
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of Bern
Carotid Artery Stenosis
Improved Image Quality for Assessment of Carotid Artery Stenosis by Ultrafast Ultrasound FLOW Imaging
Objective: To evaluate the technical performance of a novel cascaded wave imaging technique compared to plane wave imaging for blood flow imaging in patients with and without carotid artery stenosis.
- Trial name
- CAS-iFLOW (NCT06170580)
- Testing
- Conventional duplex, Ultrasound-based flow imaging using plane wave imaging, Ultrasound-based flow imaging using cascaded wave imaging
- Where
- Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center