Posts Tagged ‘Elekta VMAT’
Clinique Claude Bernard’s Private Radiotherapy Center of Metz (PRCM) uses Elekta ’s definitive arc-based Volumetric Modulated Arc Therapy (VMAT) method to boost efficiency.
The quality and efficiency of arc-based radiation therapy has prompted PRCM (Metz, France) to use Elekta VMAT for nearly all cases. Eleven months after using VMAT on its first patient, PRCM has used the technique for more than 500 patients, half of which were prostate cancer* cases. With Elekta VMAT, single or multiple radiation beams sweep in uninterrupted arc(s) around the patient, significantly reducing treatment times.
Entire article here : French Clinic Adopts Elekta VMAT Radiation Therapy
The first day of AAPM opened Sunday at 1 PM. Elekta, Impac Software and CMS Software are located in the largest booth at the show, which is near the Hall’s front entrance. [ Click here for AAPM Floorplan ]
AAPM is expecting over 2500 people at the show this year slightly less than last year, although physicistsare still registering. The Elekta booth was very busy during the first day with special interest in CMS Software’s treatment planning system, Monaco with VMAT which was just cleared by the FDA on July 17th. The workstations were packed all day with back-to-back demos.
The theme of this year’s show is, “Beyond rapid there is Elekta VMAT” and it is depicted through engaging graphics of young children in red capes, a subtle nod to VMAT as the hero of conformal therapy procedures with its multiple arc capability and high dose conformance, not to mention that the time and total monitor units needed to deliver these treatments can be reduced drastically from standard IMRT protocols.
There has been a lot of buzz about VMAT throughout the technical sessions, which positions Elekta very well in this space.
Three copies of this year’s AAPM summer school physics book, “Clinical Dosimetry Measurements in Radiotherapy” will be raffled off and shipped to AAPM attendees on August 3rd.
- Elekta Booth at AAPM 2009
Click To view more image from AAPM 2009
Patient history and diagnosis
88-year-old woman with an unresectable pancreatic cancer. The patient complained of generalized weakness, early satiety, decreased appetite and back pain. A CT scan demonstrated a 3.2 x 3.2cm hypodense soft tissue mass causing distortion of the head of the pancreas and the uccinate process. There was marked dilatation of the apancreatic duct. There was 1.9 x 1.7cm low density retroperitoneal lymph node and a second 1.1cm aortocaval lymph nodes. An endoscopic ultrasound with fine needle aspiration confirmed malignant cells consistent with adenocarcinoma of a pancreaticobiliary primary. The patient was treated with a single course of gemcitabine chemotherapy and then concurrent radiotherapy and xeloda.
2D dose distribution for the VMAT plan
The patient had a long standing diagnosis of myelodysplastic syndrome, but had been quite healthy otherwise. Just prior to her diagnosis, the patient was living by herself.
Treatment planning
As a first step in creating the VMAT plan, an IMRT optimization was performed. 18 equispaced beams were used in this optimization. Next, a home-grown arc-sequencing algorithm was used to translate the optimized fluence maps into a deliverable single-arc VMAT plan. A total of 90 control points were used. To ensure the deliverability and accuracy of the VMAT plan, the maximum MLC leaf motion between adjacent control points was set to be 2.5cm per degree of gantry rotation. The resulting VMAT plan was loaded into the Philips Pinnacle3® treatment planning system for a final dose calculation and plan evaluation.
Read more of this VMAT Case Study here
- Largest Neurosurgical Center in Russia Acquires Elekta’s Leksell Gamma Knife Perfexion February 6, 2012Russia’s first Leksell Gamma Knife® Perfexion™ system has found a home at the renowned N.N. Burdenko Neurosurgical Institute, just a five-minute car ride from Moscow’s Red Square. On June 2, 2011, a 59-year-old woman was the first Perfexion patient, receiving Gamma Knife® radiosurgery to treat tumor tissue that remained following open surgery. Now, eight mon […]
- Largest Neurosurgical Center in Russia Acquires Elekta’s Leksell Gamma Knife Perfexion February 6, 2012N.N. Burdenko Neurosurgical Institute improves treatment of patients with multiple metastasesRead more... […]
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- SBRT January 31, 2012Wake Forest, North Carolina18-19 October - 2012 […]
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- IMRT / VMAT January 31, 2012Mannheim21-22 June - 2012 […]
- Mosaiq® - Electronic Medical Records January 31, 2012Mannheim18-19 June - 2012 […]