Clinical Trials About "Viewray Powers" RSS

04:22 EST 19th November 2018 | BioPortfolio

We list hundreds of Clinical Trials about "Viewray Powers" on BioPortfolio. We draw our references from global clinical trials data listed on and refresh our database daily.

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Showing "Viewray Powers" Clinical Trials, all 12


MRI Adaptive Replanning Using ViewRay

Current dose escalation regimens with and without chemotherapy have failed to achieve improved local control and overall survival over standard of care therapy to date. Difficulties with dose escalation have been largely due to dose limiting toxicities of surrounding normal organs, in particular to the normal lung parenchyma, and esophagus. Real time, online adaptive planning using magnetic resonance imaging (MRI) could achieve significant volume reduction of primary lung disea...

IOL Power Calculation Using Dual Schiempflug Analyzer

This study evaluates the various ocular parameters which are necessary for ocular biometry and the calculated IOL powers using both dual Schiempflug analyzer and optical low-coherence refelctometry.

Bifocal Lenses In Nearsighted Kids

This study will evaluate the use of two different bifocal contact lens add powers to prevent further nearsighted progression in children ages 7 to 11 years old. It is theorized that the profile of the bifocal lenses will decrease the amount of change in nearsightedness that the children experience.

Effects of Different Add Powers on the Comfort and Productivity of Computer Users With Fixed or Free Head Movement

The aim of this study is to examine the relationship between optical blur from poor refractive corrections (glasses) of older workers using computers and their productivity and comfort in the workplace. The investigators believe that improving the visual status of subjects who use computers will have a beneficial effect on productivity and visual comfort.

Probably Relevant

Fibrous Dysplasia, McCune-Albright Syndrome Patient Registry

The FD/MAS Patient Registry is an IRB-approved research study that that invites the patients and families to help answer some of the biggest questions about FD/MAS by completing questionnaires about their lives with FD or MAS. Have you enrolled in the FD/MAS Patient Registry yet? Are you up-to-date on your surveys? Take a trip to today to learn more about the project, enroll, complete your surveys, or make sure you aren't due to provide more info! ...

Hybrid SA RGP Center/S-H Skirt Daily Wear 90 Day Multicenter Study

The purpose of the study is to demonstrate that the SynergEyes SA Hybrid Contact Lens clinical performance is substantially equivalent to that of the SynergEyes A Hybrid Lens when studied: - within the corresponding range of lens powers - in a population randomized within multiple investigational sites - with a study ration of 2/1 test vs control lenses - for a duration of 90 days.

Evaluation of a New Daily Disposable Multifocal Contact Lens Design

The purpose of this study is to demonstrate non-inferiority of a new daily disposable multifocal contact lens in plus powers against the commercially available AIR OPTIX® AQUA MULTIFOCAL (AOAMF) lens in high contrast/high illumination (HC/HI) near visual acuity (VA).

Homeopathic Drug Provings

In a homeopathic drug proving a homeopathically prepared substance is administered to healthy volunteers in order to produce the symptoms specific to that substance and thereby reveal its inherent curative powers. During a homeopathic drug proving the goal is to provoke temporary symptoms (or "artificial illness") associated with the homeopathic medication. These symptoms are then arranged to form a symptom pattern or 'remedy picture' which is specific to that particular homeop...

Oxytocin and Learning for Teaching

One well-established cognitive theory propose a divide between social and non-social (i.e., cognitive) systems. However, recent work suggests that traditionally social systems can be utilized to enhance cognitive performance. In this study the investigators aim to explore this cooperation between oft-competing systems by instructing participants to learn information because they will be subsequently tested (the nonsocial learning-for-testing condition), or because they will be ...

Rapid Diagnostic Tests and Clinical/Laboratory Predictors of Tropical Diseases in Neurological Disorders in DRC

The impact of neurological disorders is enormous worldwide, and it is increased in poor settings, due to lack of diagnosis and treatment facilities as well as delayed management. In sub-Saharan Africa, the few observational studies conducted for the past 20 years show that neurological disorders accounted for 7 to 24% of all admissions. Central nervous system (CNS) infections were suspected in one third of all patients admitted with neurological symptoms, with a specific microb...

Hematopoietic Stem Cell Transplantation and Childhood Leukemia Quality of Life in SIbling DONors

The childhood cancer experience necessarily impacts the entire family. In this context, particular attention should be paid to the donor siblings of hematopoietic stem cells in the context of treatment of leukemia by grafting. The results of the little existing work on the long-term fate of stem cell donor siblings of cancer survivors report psychosocial consequences, particularly for real post-traumatic stress in distant siblings. Few studies have explored the medium a...

Possibly Relevant

Efficiency Study Evaluating the Use of the PVAC Catheter Technology for Performing Ablation in Patients With Atrial Fibrillation

Atrial fibrillation (AF) is the most common arrhythmia affecting the Canadian population. AF is associated with increased risk of stroke, heart failure, and even mortality1. AF can also cause debilitating symptoms and adversely affect a patient's quality of life and functional status. These are amongst several reasons why a strategy of sinus rhythm may be pursued over a strategy of allowing AF to persist2-6. Percutaneous catheter ablation has emerged as an effective alternativ...

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