The innovations are aimed at assisting clinicians in treating tumors with greater precision. Intelligent software and imaging ensure that radiation planning, reviewing the treatment plan, any necessary replanning and radiation therapy take place with greater efficiency than before. Multiple-X, a feature with which radiation times can be shortened, is a particular highlight at ESTRO 2011 in London. With In-Line kView Imaging, Siemens is also presenting an imaging method in which a treatment beam optimized for imaging is used to image a tumor to enable a repeated check of its location before radiation treatment.
The highlights at ESTRO 2011
Multiple-X: high dose rate speeds up stereotactic radiation therapy
For its Artiste linear accelerator, Siemens Healthcare has developed the new Multiple-X feature with which, among other things, stereotactic radiation therapy can be significantly speeded up. Stereotaxy is a highly precisely guided radiation treatment in which very high doses are applied to a tumor in one or more radiation sessions, so-called fractions. At present, patients undergoing stereotactic radiation spend up to 60 minutes on the treatment table. The usual radiation dose rate in monitor units (MU) is between 50 and 500 per minute. With Multiple-X, Artiste enables a dose rate of up to 2,000 MU per minute. This high dose rate boosts the efficiency of radiation and can shorten treatment time by up to 80 percent.
Different intensities of energy are necessary for radiation therapy depending on the position and type of the tumor. Multiple-X provides four different types of beam without flattening filters (flattening filter free beams, FFFB): 7 MV (megavolts), 11 MV, 15 MV and 17 MV. These can be combined with one flat energy. This enables further application options such as Intensity- Modulated Radiation Therapy (IMRT), 3D-Conformal Radiotherapy (CRT) and stereotactic radiation therapies.
In-Line kView – innovative imaging for radiation therapy
For Image Guided Radiation Therapy (IGRT), Siemens offers In-Line kView, an innovative imaging method. A treatment beam optimized for imaging is used on the accelerator to record 2D and 3D images of a tumor and surrounding tissue. The image quality achieved is comparable to that of Xray images, but requires a smaller dose than the MV imaging process commonly used in radiation therapy.
Assisted by intelligent software applications, the clinician compares the image recorded by In-Line kView with the computer tomography image from the planning phase to adjust positioning of the patient before treatment should the tumor have shifted or the patient be in the wrong position.
In-Line kView also allows selection of the imaging quality depending on the dose rate, thus supporting dose management for the patient.
Modular, flexible, expandable: the Artiste linear accelerator from Siemens
The Artiste linear accelerator provides a broad portfolio of software and hardware tools for fast and precise conventional radiation therapy. In particular, these include IGRT, ART (Adaptive Radiation Therapy), IMRT and SRT (stereotaxy).
160 computer-controlled tungsten leaves continuously adapt the radiation to the tumor's contours. The multileaf collimator 160 MLC, a standard component of Artiste, combines fast leaf movement of 4 cm per second with high resolution and low radiation leakage. High accuracy in positioning of the leaves and an abrupt drop in the dose in the penumbra enable radiation therapy of high precision while simultaneously protecting healthy surrounding tissue.
The here mentioned products/features are not commercially available in all countries. Due to regulatory reasons its future availability in any country cannot be guaranteed. Please contact your local Siemens organization for further details.
The Siemens Healthcare Sector is one of the world’s largest healthcare solution providers and a leading manufacturer and service provider in the fields of medical imaging, laboratory diagnostics, hospital information technology and hearing instruments. It offers solutions covering the entire supply chain under one roof - from prevention and early detection to diagnosis and on to treatment and aftercare. By optimizing clinical workflows oriented toward the most important clinical pictures, Siemens also strives to make healthcare faster, better and, at the same time, less expensive. Siemens Healthcare currently has some 48,000 employees worldwide and is present throughout the world. During fiscal 2010 (up to September 30) the Sector posted sales worth 12.4 billion euros and profits of around 750 million euros.
Marion Bludszuweit | Siemens Healthcare
Novel PET tracer identifies most bacterial infections
06.10.2017 | Society of Nuclear Medicine and Molecular Imaging
Teleoperating robots with virtual reality
05.10.2017 | Massachusetts Institute of Technology, CSAIL
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
17.10.2017 | Life Sciences
17.10.2017 | Life Sciences
17.10.2017 | Earth Sciences