Hitachi features CT, MRI technology at ECR 2019

Hitachi Medical Systems Europe is highlighting its Scenaria View CT scanner...Read more on AuntMinnie.comRelated Reading: Hitachi to unveil new CT scanner at RSNA 2018 Hitachi lands 1st order for new proton therapy system Hitachi nets FDA OK for proton therapy technology Hitachi inks deal to acquire IT firm VidiStar Hitachi to buy Mitsubishi particle therapy business
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news

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Conclusions: Our initial results with the use of modern PT for reirradiation of recurrent NPC patients are encouraging. Favorable LC and OS rates were obtained at the cost of acceptable severe late toxicity. PMID: 31155998 [PubMed - as supplied by publisher]
Source: Acta Oncologica - Category: Cancer & Oncology Authors: Tags: Acta Oncol Source Type: research
Publication date: Available online 22 May 2019Source: Practical Radiation OncologyAuthor(s): Ashlyn S. Everett, Bradford S. Hoppe, Debbie Louis, Andrew M. McDonald, Christopher M. Morris, Nancy P. Mendenhall, Zuofeng Li, Stella FlampouriAbstractIntroductionPatients with lower mediastinal lymphoma (LML) benefit dosimetrically from proton therapy (PT) compared with intensity-modulated radiotherapy (IMRT). The added dosimetric benefit of deep-inspiration breath-hold (DIBH) is unknown; therefore, we evaluated IMRT versus PT and free-breathing (FB) versus DIBH among patients with LML.Materials and MethodsTwenty-one patients wit...
Source: Practical Radiation Oncology - Category: Cancer & Oncology Source Type: research
1139Introduction: Thoracic malignancies are among the most common malignancies diagnosed both in the United States and worldwide. Radiation therapy (RT) plays an important role in the treatment of thoracic malignancies. Depending on the primary disease site and tumor stage, RT can be used as monotherapy, or as part of multimodality therapy for curative intent, or for palliative reduction of advanced disease. In fact, more than 50% of all patients with thoracic malignancies will receive RT as part of their multidisciplinary care. 18F-Fluorodeoxyglucose positron emission tomography (PET) is commonly used for initial cancer d...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Educational Exhibit Posters Source Type: research
CONCLUSION: The first prototype of dynamic proton arc delivery on a clinical proton therapy system was successfully performed. The measurements and simulations demonstrated the feasibility of SPArc treatment within the clinical requirements. PMID: 31100606 [PubMed - as supplied by publisher]
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - Category: Radiology Authors: Tags: Radiother Oncol Source Type: research
Proton therapy has become increasingly accepted around the world. According to the latest PTCOG statistics, there are currently 77 proton therapy centers in operation worldwide, with 44 new facilities under construction and 20 facilities in plan stage [1]. By the end of 2017, more than 170,000 patients have been treated with proton therapy [2]. Based on how 3D dose distributions are produced, proton therapy delivery methods can be divided as passive scattering, uniform scanning, and pencil beam scanning techniques [3 –5].
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Tags: Original paper Source Type: research
(European Society for Radiotherapy and Oncology (ESTRO)) A comparison of three types of radiotherapy for children's brain tumors suggests that a type of proton therapy called pencil beam scanning offers the best hope of preserving cognitive functions.
Source: EurekAlert! - Cancer - Category: Cancer & Oncology Source Type: news
Abstract This work investigates the dosimetric impact on 4D dose distribution estimation for pencil beam scanned (PBS) proton therapy as function of the temporal resolution used for the time resolved dose calculation. For three liver patients (CTV volume: 403/122/264cc), 10-phase 4DCT-MRI datasets with ~15mm tumour motion were simulated for seven different motion periods (2-8s). 4D dose distributions were calculated and compared by considering both coarser and finer temporal resolutions (200-800ms and 20ms). Single scanned 4D plans for seven fraction doses (0.7/2/4/6/8/10/12Gy) were investigated, whose dose delive...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
CONCLUSIONS: The breath-hold technique is robust to residual intra-breath-hold motion for SFUD treatment plans, based on our experimental study. IMPT was less robust with larger detected dose deviations. PMID: 31005207 [PubMed - in process]
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - Category: Radiology Authors: Tags: Radiother Oncol Source Type: research
Abstract Range verification is one of the most relevant tasks in ion beam therapy. In the case of carbon ion therapy, positron emission tomography (PET) is the most widely used method for this purpose, which images the β<sup>+</sup>-activation following nuclear interactions of the ions with the tissue nuclei. Since the positron emitter activity profile is not directly proportional to the dose distribution, until today only its comparison to a prediction of the PET profile allows for treatment verification. Usually, this prediction is obtained from time-consuming Monte Carlo simulations of high com...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
Abstract PURPOSE: The aim of this work is to describe the clinical implementation of respiratory-gated spot-scanning proton therapy (SSPT) for the treatment of thoracic and abdominal moving targets. The experience of our institution is summarized, from initial acceptance and commissioning tests to the development of standard clinical operating procedures for simulation, motion assessment, motion mitigation, treatment planning, and gated SSPT treatment delivery. MATERIALS AND METHODS: A custom respiratory gating interface incorporating the Real-Time Position Management System (RPM, Varian Medical Systems, Inc....
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
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