Posts Tagged ‘stereotactic radiation therapy’
Live Premiere: Cancer Treated with Radiation Therapy
James J. Urbanic, M.D., a radiation oncologist, and Carnell J. Hampton, Ph.D., a physicist at the Comprehensive Cancer Center at Wake Forest University Baptist Medical Center, will use the most advanced linear accelerator to treat lung cancer.
Elekta Axesse™ image guided linear accelerator offers highly-accurate targeting of tumors and lesions virtually anywhere in the body. Typically requiring only one to five treatments, it achieves excellent results in fewer treatments than required by standard radiotherapy.
“Axesse raises our technological and treatment capabilities to an even higher level,” said Urbanic, lead physician on the Axesse team. “We are able to deliver higher and more conformal doses of radiation to the target in fewer fractions than with conventional radiation therapy techniques.”
For patients, that means more convenience and a faster return to their daily activities.
The Axesse combines three-dimensional image guidance with highly conformal beam shaping and robotic 6D patient positioning to deliver fast, effective and accurate treatments.
“Even the slightest patient misalignment can impact the accuracy of a dose,” said Urbanic.
With Axesse, the unit’s built-in CT imaging can allow for targeting accuracy within just a couple of millimeters. This ability to precisely conform the dose to the size and shape of the target offers clinicians the confidence to treat targets more aggressively while avoiding healthy tissue and critical structures.
Radiation therapy with these techniques is a treatment modality for a wide range of cancers including lung, prostate, head and neck, esophageal, spinal cord, pancreatic, liver metastases, recurrent gynecologic cancers, bone metastasis and adrenal cancer.
Re-treatment of a recurrent brain tumor using Elekta Synergy® S
Institution: Temple University Hospital, Philadelphia, USA
Patient: 63-year-old male
Diagnosis: NSCLC
Plan: Nine-field IMRT/SRT
Image guidance: VolumeView™ on-line
Treatment: Target – 1200cGy – single fraction
Patient diagnosis and history
A 63-year-old man with a six-month history of weight loss underwent a chest X-ray which revealed a right upper lobe mass. The patient later had a generalized seizure and was admitted to a local hospital, after which he had an MRI scan which revealed three metastatic lesions.
A CT scan of the chest revealed a 9cm right upper lobe mass with hilar and mediastinal lymphadenopathy. The patient had a fine needle aspirate biopsy of the right upper lobe mass that was compatible with non-small cell carcinoma of the lung (NSCCL). A bone scan revealed increased activity in the T6 vertebral body and the right intertrochanteric area of the right femur.
Previous radiation therapy
The patient had previously received whole brain irradiation, a total dose of 3500cGy was delivered in 14 fractions through parallel-opposed lateral fields.
Treatment
A step-and-shoot IMRT/stereotactic radiation therapy (SRT) plan (figure 1) for simultaneous treatment of multiple brain metastases (two cerebellar and a right temporal). Treatment planning was carried out using Philips Pinnacle®3 IMRT/SRT techniques. The patient was immobilized in a reinforced AcQuaPlast head mask. No sedation was employed.
Read more of the Re-treatment of a recurrent brain tumor using Elekta Synergy® S
On-line image guided hypofractionation of a solitary lung metastasis using Elekta Synergy® at West China Hospital, Sichuan University, PR China
Solitary lung metastasis
A 47-year-old male previously treated for adenocarcinoma of the right upper lung presented with a metastasis in the lingua segment of the left upper lobe in March 2006. The metastasis was diagnosed using a contrast enhanced CT scan. The patient was evaluated and elected to proceed with a course of image guided hypofractionated stereotactic radiation therapy. The patient was first diagnosed as having a low-differentiated adenocarcinoma of the right upper lobe of the lung (stage IIIA) in March 2004 with the primary tumor in the upper apical-posterior segment of the right lung, right hilum, and an upper mediastinal lymph node metastasis. The patient was treated with right upper lung lobectomy and mediastinal lymph node dissection followed by adjuvant alternate chemotherapy (vinorelbine 40mg iv drip, days one and eight, cisplatin 50mg, IV drip, days one to three – 21 days per cycle for a total of four cycles) and radiation therapy.
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- 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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