Hitachi wins FDA nod for proton beam therapy real time image gating system
Hitachi (NYSE:HIT) said this week it won FDA 510(k) clearance for its Real Time Image Gating System designed for use with its proton beam therapy systems. Real Time Image Gating Proton Beam Therapy is designed to track and irradiate tumors in motion, using a 2mm diameter gold marker close to the tumor to establish its location as a reference via computed tomography. A dual-axis, orthogonal X-ray system is then used with pattern recognition software to identify the spatial location of the marker, and irradiation during treatment is performed only when the gold marker moves to within millimeters of the planned irradiation location. Development of the technology was sponsored in part by a grant from the Funding Program for World-Leading Innovative R&D on Science and Technology in 2010, sponsored by the Japanese Government. The grant was awarded to a joint project between Hitachi and Hokkaido University. Hitachi won clearance for the RGPT technology from Japan’s Pharmaceuticals Medical Device Administration in 2014. “Hokkaido University has been developing motion tracking technology in the field of X-ray therapy. By combining this technology with Spot Scanning technology, the accurate irradiation of tumors, including those attached to large organs in motion which are difficult to irradiate with X-rays, will be possible and will lead to greater adaptation. I am very pleased that this innovation for highly precise irradiation will become broadly available around the wor...
Conclusions The use of CT-based navigation in LMS insertion decreased the rate of screw malpositions as compared with the freehand technique. Further investigations and trials will determine the effect of malpositions on the c-spine biomechanics. The use of navigation in LMS insertion did not show a significant difference in VAI, LMF, SCI, or NRI as compared with the freehand technique. [...] Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents | Abstract | open access Full text
ConclusionIntegrating newer technology can change the current way of planning/simulating surgery. The use of powerful computer-assisted tools that are able to integrate several parameters and learn from experience can change the traditional way of selecting treatment pathways and counseling patients. However, there is still much work to be done to reach a desired level as noted in other orthopedic fields, such as hip surgery. Many of these tools already exist in non-medical fields and their adaptation to spine surgery is of considerable interest.
Conclusions Conventional radiographic methods demonstrated a more subjective diagnostic procedure compared with CBCT images. CBCT is a more accurate and precise examination method compared with conventional radiography for the localization of impacted teeth and root resorption of the adjacent teeth.
AbstractBackgroundBoth [F-18]2-fluoro-2-deoxyglucose positron emission tomography/computed tomography (18F –FDG PET/CT) and diagnostic CT are at times required for lymphoma staging. This means some body segments are exposed twice to X-rays for generation of CT data (diagnostic CT + localization CT).ObjectiveTo describe a combined PET/diagnostic CT approach that modulates CT tube current along the z-axis, providing diagnostic CT of some body segments and localization CT of the remaining body segments, thereby reducing patient radiation dose.Materials and methodsWe retrospectively compared total patient radiation dose ...
ConclusionsBisphosphonate therapy can be used as the definitive treatment of spinal ABCs, except in patients with instability or progressive neurology, where surgical intervention is required. Clinicians should expect a patients symptoms to rapidly improve, their bone oedema to resolve by 3 months and their lesion to partially or completely ossify by 6–12 months.
ConclusionSurgeons should be aware that SSOV X-rays may underestimate the true type of the acromial undersurface.
Conclusions Osteoporosis of the proximal humerus was identified in 72% of patients during a two year period; most of these patients were elderly females sustaining low energy trauma. These fractures showed to have specific radiographic patterns, as comminution of metaphysis and tuberosities, impaction of fragments, and inferior subluxation of the humeral head. These patterns can be assessed with the simple observation of a 2-plan view of a radiograph, without the use of specific software. Level of evidence Level III, observational study.
CONCLUSION Senior surgical residents are capable of interpreting critical images obtained in the trauma setting. When discordance existed with attending radiologists' interpretation, it did not change the clinical outcome or result in any critically missed findings. Level of Evidence Therapeutic/Care Management study, Level IV.
Conclusions: Posterior cervical cages may be an alternative option to LMSs in multilevel cervical laminectomy and fusion for cervical spondylotic myeloradiculopathy.
Conclusion: At least 1/5 of ARD are due to occupational reasons in Turkey. Else, 1/3 of ARDs due to EA exposure are from the locations where have not been reported before.