Varian Installs Gantry for ProBeam Compact Proton Therapy System at New Treatment Center in Singapore

PALO ALTO, Calif. and SINGAPORE, Jan. 21, 2019 -- (Healthcare Sales &Marketing Network) -- Varian (NYSE: VAR) today announced the installation of the gantry for the Varian ProBeam® Compact single-room proton therapy system at the new oncology center ... Devices, Oncology Varian Medical Systems, ProBeam, proton therapy, radiotherapy
Source: HSMN NewsFeed - Category: Pharmaceuticals Source Type: news

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ConclusionsVMAT is now widely available, and high-quality VMAT plans that incorporate cardiac substructures into the optimization process can provide overall improvements in dose to OARs and, in particular, substantial sparing of critical cardiac structures. IMPT provides some incremental dosimetric improvements beyond cardiac-optimized VMAT, the clinical significance of which remains uncertain.
Source: Practical Radiation Oncology - Category: Cancer & Oncology Source Type: research
ConclusionRITI can be induced in patients with NSCLC through upregulated IgG and/or IgM. RITI response was not associated with proton versus photon therapy or with clinical outcomes in this small cohort and should be examined in a larger cohort in future studies.
Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: ORIGINAL ARTICLE Source Type: research
This study aimed at directly comparing the RSP accuracy of both modalities using phantoms scanned at an advanced prototype pCT scanner and a state-of-the-art DECT scanner.
 
 Two phantoms containing 13 tissue-mimicking inserts of known RSP were scanned at the pCT phase II prototype and a latest generation dual-source DECT scanner (Siemens SOMATOM Definition FORCE). RSP accuracy was compared by mean absolute percent error (MAPE) over all inserts. A highly realistic Monte Carlo (MC) simulation was used to gain insight on pCT image artifacts which degraded MAPE.
 
 MAPE was 0.55% for pCT and 0....
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
f J Abstract Some clinical indications require small fields with sharp lateral dose gradients, which is technically challenging in proton beam therapy. This holds especially true for low-range fields applied with the spot scanning technique, where large beam profiles entering from the beam-line or the insertion of range shifting blocks lead to large lateral gradients. We regard the latter case and solve it by shifting the range shifting block far upstream in conjunction with a collimating aperture close to the patient. The experiments of the current work are based on a commercial proton therapy treatment head desi...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
At the conclusion of a recent office visit, one of our patients summarized his feelings and stated, with a sense of absolute conviction, “The only type of radiation therapy I am willing to undergo is proton therapy.” In contrast, another recent patient facing a similar situation stated, “I don't care which I get [proton or photon therapy]; to me, it sounds like it's the team, not the beam.” The former patient put his hope in a technology; the latter patient prioritized the experience of his care team over any particular technology.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Tags: Payment Policy Source Type: research
This study was performed to determine the clinical and patient-reported outcomes for patients with PC treated with HFPT.
Source: International Journal of Radiation Oncology * Biology * Physics - Category: Radiology Authors: Source Type: research
CONCLUSIONS: IMPT following IBR spared underlying organs and had low rates of acute toxicity. Reconstruction complications are more common in irradiated breasts, and reconstructive outcomes appear comparable with photon literature. Hypofractionation was associated with higher reconstruction failure rates. Further investigation of optimal dose-fractionation after IBR is needed. PMID: 31185327 [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 Computed Tomography (proton CT) is an imaging modality able to measure the proton stopping power of the patient prior to treatment planning and treatment in proton therapy [1]. The goal of proton CT is to increase the accuracy of the proton range estimation, compared to conversion from the X-ray mass attenuation using X-ray CT [2]. Several design approaches for proton CT have been proposed. Usually, tracker planes in front of and behind the patient measure each proton ’s position and direction so that their path through the patient can be estimated [3,4].
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Tags: Original paper Source Type: research
No abstract available
Source: Oncology Times - Category: Cancer & Oncology Tags: News Source Type: research
PMID: 31166085 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
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