Hitachi board votes to sell medical division to Fujifilm

The board of directors of Japanese industrial conglomerate Hitachi has voted...Read more on AuntMinnie.comRelated Reading: Report: Fujifilm plans to buy Hitachi imaging business Fujifilm to debut glass-free DR panel at RSNA 2019 Hitachi delivers proton therapy unit to Sibley Memorial Fujifilm unveils new Synapse Cardiology PACS release Hitachi takes order for particle therapy system
Source: Headlines - Category: Radiology Source Type: news

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eier Sairos Safai The Pencil Beam Scanning (PBS) technique in proton therapy uses fast magnets to scan the tumor volume rapidly. Changing the proton energy allows changing to layers in the third dimension, hence scanning the same volume several times. The PBS approach permits adapting the speed and/or current to modulate the delivered dose. We built a simple prototype that measures the dose distribution in a single step. The active detection material consists of a single layer of scintillating fibers (i.e., 1D) with an active length of 100 mm, a width of 18.25 mm, and an insignificant space (20 μm) between the...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
AbstractCardiac disease following radiation therapy represents a major consideration in the treatment of a variety of malignancies. Damage to the heart can manifest in a variety of pathologies including ischemic cardiac disease, cardiomyopathy, valvular dysfunction, arrhythmias, and pericarditis. This damage has been shown to directly relate to cardiac radiation dose and to stem from a range of cellular pathways that are often related to fibrosis. The importance of minimizing radiation dose to the heart is especially critical in the pediatric population and when treating disease sites adjacent to the heart. Proton therapy ...
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
This article presents an overview of current indications for PT with emphasis on tumors in the head and neck region and the base of skull. Furthermore, a summary and discussion of relevant results and current developments are included. MATERIALS AND METHODS: The work comprises an evaluation of relevant studies and an overview of current issues related to PT of tumors in the areas of the head, neck, and base of skull. RESULTS: Overall, the studies on PT show promising results. In addition to dosimetric studies, clinical studies also point to advantages of PT, especially with regard to the reduction of side effects...
Source: Der Radiologe - Category: Radiology Authors: Tags: Radiologe Source Type: research
Wilms ’ tumour (WT) and neuroblastoma (NBL) are two of the most common abdominal solid tumours diagnosed in children. Depending on the risk stratification, the treatment involves a combination of surgery, chemotherapy and radiotherapy [1,2]. During radiotherapy treatment planning (RTP), magnetic resonan ce imaging (MRI) scans are commonly acquired to define the target volume thanks to their superior soft-tissue contrast [3]. In addition, computed tomography (CT) images are used for the computation of patient-specific dose deposition maps [4] using the conversion of the CT Hounsfield units (HU) to r elative electron d...
Source: Radiotherapy and Oncology - Category: Radiology Authors: Tags: Original Article Source Type: research
In conclusion, proton beam matching was quantified for three beam-matched rooms of an IBA ProteusPLUS system with a PBS dedicated nozzle. It is feasible to match the spot size and absolute dose within ± 5% and ± 2%, respective ly. Proton range can be matched within ± 0.5 mm.
Source: Australasian Physical and Engineering Sciences in Medicine - Category: Biomedical Engineering Source Type: research
Publication date: Available online 3 October 2020Source: Reports of Practical Oncology &RadiotherapyAuthor(s): Zahra Hashemi, Mansoureh Tatari, Haladhara Naik
Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research
Proton pencil beam scanning (PBS) represents an interesting option for the treatment of breast cancer (BC) patients with nodal involvement. Here we compare tangential 3D-CRT and VMAT to PBS proton therapy (PT)...
Source: Radiation Oncology - Category: Cancer & Oncology Authors: Tags: Research Source Type: research
Purpose: In selected breast cancer (BC) patients, proton therapy (PrTh) has the potential to lower radiation doses to heart, lung and contralateral breast (CLB) compared to photon therapy. However, higher skin toxicity using PrTh has been reported in literature. We prospectively evaluated acute toxicity in breast cancer patients treated with robust intensity modulated proton therapy (IMPT).
Source: European Journal of Cancer - Category: Cancer & Oncology Authors: Tags: POSTERS A: Local Regional Treatment – Radiotherapy Source Type: research
In this study, we measured and compared the accuracy of SPR values derived using both dual- and single-energy CT (SECT) based on different published conversion algorithms. For this purpose, a phantom setup containing either fresh animal soft tissue samples (beef, pork) and a water reference or tissue equivalent plastic materials was designed and irradiated in a clinical proton therapy facility. Dosimetric polymer gel was positioned downstream of the samples to obtain a three-dimensional proton range distribution with high spatial resolution. The mean proton range in gel for each tissue relative to the water sample was conv...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
GEANT4 simulation of a range verification method using delayed γ spectroscopy of a92Mo marker. Phys Med Biol. 2020 Sep 30;: Authors: Kasanda EM, Burbadge C, Bildstein V, Turko J, Spyrou A, Hoehr C, Muecher D Abstract In this work, we propose a novel technique for in-vivo proton therapy range verification. This technique makes use of a small hadron tumour marker,92Mo, implanted at a short known distance from the clinical treatment volume. Signals emitted from the marker during treatment can provide a direct measurement of the proton beam energy at the marker's position. Fusion-evaporation reactio...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
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