( VRAY ) became a public company ( VRAY ) via a reverse merger last year (July 2015). Within a year the firm was uplisted to the NASDAQ Global Market ( VRAY ) in March 2016. The MRIdian was developed by VRAY in collaboration with Siemens Healthcare, which integrates a Cobalt therapy unit with a low field MRI scanner. VRAYs MRIdian-Cobalt is the first and only MRI-guided radiation therapy system in the market. It allows clinicians to simultaneously image and treat patients suffering from cancer. ViewRays research efforts have established a series of industry firsts in product design such as: – First patient treated with MRI-guided RT – First and only FDA-cleared MRI-guided RT system – First and only CE-marked MRI-guided RT system – First on-table adaptive RT system – First system to provide direct soft tissue tracking – First system to exclusively use Monte Carlo Treatment Planning System (TPS) – First MRI-guided system to fit in standard vaults Currently, innovators at ViewRay have met the challenge of combining the proven cancer treatment capabilities of a Linac with the soft tissue imaging capabilities of MRI. The firm has developed radio frequency (RF) cloaking technology to prevent RF emitted by the Linac from destroying the MR image quality as well as magnetic shielding technology to enable undistorted delivery of radiation. The firms double-focused multi-leaf collimator (MLC) technology allows delivery of sharp radiation beams. Further, the magnet is designed such that it can be easily incorporated into existing vaults. Real-time MRI radiotherapy is a potentially disruptive technology that non-invasively allows anatomical and physiological targeting resulting in the potential to medical registrar interview questions improve cancer outcomes. VRAYs proprietary technology is an emerging disruptive technology that allows the potential to provide targeted dose using 3D image guidance during the treatment. ViewRays fast on-table adaptive RT (ART) treatment planning system (TPS) is capable of delineating structures of interest as well as computing a priori Monte Carlo dose to support 3D-CRT, IMRT and SBRT that are clinically equivalent to those produced on the most advanced linear accelerators available today, yet can be done during treatment while the patient is still on the table. Allowing clinicians to re-optimize and reshape dose distributions to adapt to a patients changing anatomy at each treatment, a capability that other systems do not provide. ViewRays MRIdian system provides positioning accuracy of soft tissues which can be verified visually and is updated four times a second during beam delivery. The rise in cancer prevalence, coupled with the increase in sophistication of new treatment regimen has created demand for technologically sound systems that can be integrated into clinical practice to make treatments more rapid and cost effective. While growth of radiotherapy in developed nations is stunted as the market is mature with RT systems, there is a positive trend in growth that is associated with replacement purchases. Growth in emerging markets is expected to be robust given that they are under-equipped. This demand in emerging markets, coupled with the replacement market in developed nations, and the ever- increasing incidence of cancer globally, provides a substantial growth opportunity to disruptive technologies such as ViewRays. Read More A paradigm shift is occurring in the approach to RT therapies from invasive and radiation-exposing techniques using CT to non-invasive and non-radiation based MRI procedures. MRI guided procedures such as those provided by MRIdian make it possible to improve visualization and reduce dose fractions, consequently decreasing healthcare costs. Clinical data using the MRIdian system has demonstrated the same. We expect there may be an uptick in the use of MRIdian as clinical documentation as well as publications help highlight benefits over http://plefulthergp5.pacificpeonies.com/article-directory-andrei-lightfoot-is-a-professional-writer-who-specializes-in-writing-essays-term-papers-college-papers-etc conventional RT procedures. We believe that MRIdian may be used more frequently for complex cancer cases to address tumors that may be difficult to treat on a conventional Linac due to its location in relation to the surrounding soft tissues. Further, we think the MRIdian can be used to treat a broad spectrum of diseases. We are initiating coverage on VRAY with a price target of $8.00/share. PRODUCT MRIdian Cobalt-60 (currently marketed): VRAYs promise to shrink the (cancer) risk! ViewRays split-magnet MRI system is used for pre-treatment imaging, real-time and adaptive radiotherapy. The imaging and radiation delivery systems are designed to operate in tandem for accurate, targeted administration of radiation dose. The MRIdian system records patient information, treatment protocols, amount of dose administered with every fraction, the accumulated dose, MR imaging data and system performance during treatment. The system can be disassembled (pop-apart design) for installation to allows easy transportation through existing hospital entryways, View photos The MRI System: The MRIdian radiotherapy system is designed to fit in a conventional radiotherapy bunker. The MRIdian system utilizes a split, superconducting low field strength (0.35T) magnet that helps minimize distortions to the radiation beam and the image so that a precise dose of radiation can be accurately delivered. Volumetric scans are acquired in about twenty to ninety seconds prior to commencing treatment in order to localize the region of interest. Radiofrequency (RF) surface coils are designed to be thin and uniformly attenuating. They are covered in low-density foam and positioned on the patient to prevent increased surface dose as well as for improved patient comfort. 3D-CRT, IMRT and SBRT can be performed using MRIdian, which delivers clinically equivalent results to those produced by the most advanced linear accelerators currently in the market. View photos Radiation Source: Cobalt generates gamma rays, which offer many of the same benefits as X-ray photons without interfering with the operation of the MRI unit. Radiation is delivered from three Cobalt-60 radiation therapy heads (15,000 curies per source) symmetrically mounted (120 apart) on a go right here rotating ring gantry between the gap in the MR magnets (allows unobstructed beam path) and provides full 360 degree coverage. The Cobalt sources share a common isocenter with the magnet thereby enabling simultaneous and continuous MRI during radiation delivery. Each radiation source is equipped with a double-focused Multi-Leaf Collimator (MLC), with 1.05cm leaf width and a maximum field size of 27.3cm x 27.3cm at the isocenter distance of 105cm, resulting in minimal beam penumbra for precision. It is well accepted that X-ray radiation techniques can control many cancers if the radiation beam can be adequately controlled to target the cancerous tissue. MRIdians MLCs help in defining the irradiation beam precisely to target cancerous cells. A pneumatic drive moves the sources in and out of the depleted Uranium shield. The system design enables axial radiation beam access to the patient with minimal attenuation. During treatment, tissue/organ structures are observable in continuous and simultaneous fast planar images; in one sagittal plane at four frames per second or in three parallel sagittal planes at two frames per second. The gantry containing the sources is positioned between two superconducting magnets. Patient bore diameter is 70cm and accommodates large patients. Imaging takes place in a 50cm diameter spherical volume. View photos Software: The MRIdian software possesses the capability to track the soft-tissue continuously in MRI images. Using this software, the on-table ART process can be implemented in less than two minutes, and includes: auto-contouring, dose prediction and treatment plan optimization. For contouring, the software will automatically delineate the tumor border. This process allows the clinician to make refinements to the region of interest before delivering treatment, if necessary. Dose prediction can be calculated immediately following auto-contouring. The software then generates a treatment plan in about one minute, allowing time to re-plan while the patient is on the table. While the radiation dose is being delivered, the software analyzes the acquired images to determine the tumors or organs location relative to set boundaries. If the targeted tumor or a critical organ moves outside the defined boundary, which can occur due to physiological motions such as respiration, cough or digestion, the treatment beams will automatically pause and will automatically resume when the tumor moves back into the target zone. Physicians can set both spatial and time thresholds for pausing treatment delivery. This enables the system to account for tumor and patient motion during treatment. The software records all details pertaining to the treatment and builds a database of patient-specific planning, delivery and imaging data. It also includes a review tool which provides clinicians with a visual comparison of the delivered versus planned treatment. At the end of each treatment, the software determines the delivered dose by combining the recorded actions of the radiation delivery system with the daily image and auto-contouring of the patient. With this information, clinicians can fine-tune prescriptions based on the actual dose delivered. In addition, it provides a MRIdian Movie of each delivered treatment, which can be evaluated by the physician or exported and shared with the patient.
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19, 2016 at 2:00 PM Posted Aug. 19, 2016 at 2:00 PM The Coshocton Hospital Arrowhead Clinic recently hired internal medicine physician Alycia Findlay. Findlay specializes in the diagnosis, treatment and compassionate care of ages 17 and older across the full range of care, from health maintenance to the management of complex illnesses. Findlay earned her Bachelor of Arts in criminology and Bachelor of Science in biology with a diploma in forensic sciences from St. Marys University in Halifax, Nova Scotia. She earned her Doctor of Medicine from the Medical University of the Americas in Devens, Massachusetts. She completed her three-year residency training in internal medicine with the Canton Medical Education Foundation and Northeast Ohio Medical University in June. To schedule new patient appointments: 740-498-5515. SUBMITTED BY COSHOCTON COUNTY MEMORIAL HOSPITAL Times Reporter
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