Navigation Links
Radiation Oncology Expert From Stanford University Highlights How Image Guidance and RapidArc® Technology are Improving the Treatment of Lung Cancer
Date:10/18/2010

HANGZHOU, China, Oct. 18 /PRNewswire/ -- Lung cancer is a major and growing global epidemic, according to Billy W. Loo, Jr., M.D., assistant professor of radiation oncology at Stanford University in Palo Alto, California.  Dr. Loo was one of three preeminent experts who made presentations at a special symposium for Chinese radiation oncology professionals sponsored by Varian and held in connection with the 2nd Chinese Society of Therapeutic Radiology and Oncology and Sino-American Network for Therapeutic Radiology and Oncology (CSTRO/SANTRO ) Joint Meeting in Hangzhou, China earlier this month.

"Early stage cases, and especially those patients who are unfit for surgery, can be effectively treated using stereotactic ablative radiotherapy (SABR), a very fast, image-guided, arc-based approach," said Dr. Loo.  "Varian's technologies for this type of treatment—the Trilogy and TrueBeam systems for image-guided radiotherapy—are an attractive way to deliver SABR."

SABR, which is also referred to as stereotactic body radiotherapy (SBRT), involves the use of highly focused radiation concentrated on small tumors that have been discovered early, so it depends on early detection, said Dr. Loo, who uses Varian's Trilogy® and TrueBeam® systems to deliver these sophisticated treatments.  "A large dose is given in one or just a few treatment sessions.  Dose delivery is extremely accurate and precise, due to image-guidance, patient immobilization, and other technologies designed to ensure accuracy," he added.

Dr. Loo noted that studies conducted by researchers around the world have shown that SABR produces better tumor control rates, and higher overall survival rates, than conventional radiotherapy.(1)  

To deliver SABR treatments at Stanford, Dr. Loo and his colleagues depend on the full spectrum of capabilities available to them with their Trilogy and TrueBeam systems, including fluoroscopic imaging for determining the extent of tumor motion, cone-beam CT imaging for pre-treatment patient positioning, respiratory gating for motion management, high dose delivery rates for efficiency, and RapidArc to attack the tumor from all angles in a 360-degree arc.

"SABR for early stage lung cancer is rapidly maturing, with promising early results," Dr. Loo concluded.  

Another presentation, by Maria Chan, M.D., of Memorial Sloan Kettering Cancer Center, focused on the use of Varian's On-Board Imager® device to perform IGRT.  The On-Board Imager is a standard component of Varian's high-energy linear accelerators for the treatment of cancer.  It is used to generate radiographic (2-D), cone-beam CT (3-D) or fluoroscopic images that show how a tumor moves as a patient breathes in and out.  These images make it possible to accurately pinpoint the tumor and adjust the patient's position just prior to each treatment.

A third presenter, Christopher Willett, M.D., of Duke University, discussed his clinical team's use of RapidArc® technology to deliver precise image-guided treatments quickly by delivering the dose continuously from 360 degrees around the patient while shaping the treatment beam to match the shape of the tumor from every angle.  RapidArc makes it possible to complete an image-guided treatment two to eight times faster than is possible with conventional approaches to beam delivery.

"Varian Medical Systems has a corporate mission of helping radiation oncology professionals to save another 100,000 lives every year," said Thomas P. Duffy, Varian's vice president of sales and marketing for the Asia Pacific region.  "To that end, we are committed to supporting the clinical adoption of advanced forms of radiotherapy across China.  We sponsored this symposium as part of our commitment to facilitating the transfer of best clinical practices between the east and the west."

ABOUT VARIAN MEDICAL SYSTEMSVarian Medical Systems, Inc., of Palo Alto, California, is the world's leading manufacturer of medical devices and software for treating cancer and other medical conditions with radiotherapy, radiosurgery, proton therapy, and brachytherapy. The company supplies informatics software for managing comprehensive cancer clinics, radiotherapy centers and medical oncology practices. Varian is a premier supplier of tubes and digital detectors for X- ray imaging in medical, scientific, and industrial applications and also supplies X-ray imaging products for cargo screening and industrial inspection. Varian Medical Systems employs approximately 5,100 people who are located at manufacturing sites in North America, Europe, and China and approximately 79 sales and support offices around the world. For more information, visit http://www.varian.com.

(1) Published papers on this topic:

Blomgren H et al. Stereotactic high dose fraction radiation therapy of extracranial tumors using an accelerator. Clinical experience of the first thirty-one patients. Acta Oncol. 1995;34:861–870.

Chang J et al.  Stereotactic Body Radiation Therapy in Centrally and Superiorly Located Stage I or Isolated Recurrent Non–Small-Cell Lung Cancer. International Journal of Radiation Oncology * Biology * Physics, 15 November 2008 (Vol. 72, Issue 4, Pages 967-971.

Lagerwaard F et al. Outcomes of Risk-Adapted Fractionated Stereotactic Radiotherapy for Stage I Non–Small-Cell Lung Cancer. International Journal of Radiation Oncology * Biology * Physics, 1 March 2008 (Vol. 70, Issue 3, Pages 685-692).

Timmerman R et al.  Stereotactic Body Radiation Therapy for Inoperable Early Stage Lung Cancer JAMA. 2010 March 17; 303(11): 1070–1076.

Uematsu M, et al. Focal, high dose, and fractionated modified stereotactic radiation therapy for lung carcinoma patients: a preliminary experience. Cancer. 1998 Mar 15;82(6):1062-70.

Whyte RI et al. Stereotactic radiosurgery for lung tumors:preliminary report of a phase I trial. Ann Thorac Surg. 2003;75:1097–101. doi: 10.1016/S0003-4975(02)04681-7.UNITED STATES

CHINAMeryl Ginsberg

Ling Zhang, M.D.Tel: 650.424.6444

Tel: +86-10-8785 8800meryl.ginsberg@varian.com

ling.zhang@varian.com
'/>"/>

SOURCE Varian Medical Systems, Inc.
Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. HistoRx and Radiation Therapy Oncology Group Initiate Brain Tumor Biomarker Research Partnership
2. Beaumont Patients 1st to get Next Generation of Radiation Treatment
3. Three Year Analysis of Treatment Efficacy, Cosmesis, and Toxicity Support use of the Hologic Mammosite Radiation Therapy System
4. Alfacells ONCONASE(R) Shows Potential as Radiation Sensitizer for Lung Cancer Treatment
5. CAPHOSOL(R) Relieves Oral Mucositis (OM) and Improves Quality-of-Life in Cancer Patients Receiving Chemoradiation
6. Phase 1/2 Trial of Motexafin Gadolinium Plus Antibody Targeted Radiation Therapy Demonstrates High Complete Response Rate in Patients With Non-Hodgkins Lymphoma
7. Patients Own Infection-Fighting T Cells Put Late-Stage Melanoma Into Long-Term Remission - Without Chemotherapy or Radiation
8. Image Guided Radiation Therapy in Latham, NY. Now Fighting Cancer Using Fast and Precise RapidArc(TM) Radiotherapy Technology
9. CMS, Inc., an Elekta Company, Announces First Cancer Patients Treated With Monaco(TM) Radiation Treatment Planning System
10. High Intensity Focused Ultrasound for Locally Recurrent Prostate Cancer Following External Beam Radiation Therapy Investigated in Phase III Clinical Study
11. Breast MRI Scan Could Determine Need for Radiation Therapy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/10/2016)...  Oxis International Inc. (OTC/QB: OXIS) announced today that ... a "clinical trial triumph" after one of the first ... remission. Daniel Vallera , a research ... --> Daniel Vallera , a research ... --> An article on the University ...
(Date:2/10/2016)... , Feb. 10, 2016  LexisNexis® Risk ... technology, today announced the launch of LexisNexis ... solution that helps improve and optimize the quality ... of performance using severity-adjusted scores. By measuring provider ... critical solution to deliver better outcomes, improve the ...
(Date:2/10/2016)... AKIVA, Israel , February 10, 2016 ... a leader in the field of cartilage repair, announces ... February 5, 2016. The $15 million investment was led ... Chinese pharmaceutical manufacturer, and was joined by existing Regentis ... Holdings and both the Technion Research & Development Foundation ...
Breaking Medicine Technology:
(Date:2/10/2016)... ... ... As part of its ongoing series of aquatic therapy related webinars, HydroWorx ... dynamic expert and thoughtful presentation to give attendees a better sense of how to ... free to attend, but registration is required. , Rehabilitation of Offensive Lineman ...
(Date:2/10/2016)... Garland, TX (PRWEB) , ... February 10, 2016 ... ... the commencement of a master charity program created to assist the local community. ... closely with community leaders and nonprofit organizations in the area. Their goal is ...
(Date:2/10/2016)... ... February 10, 2016 , ... Dr. Jessica Barron, of Barron Family Dental ... dental patients and families in the North Metro Denver area. The new dental practice ... cosmetic dentistry, and all in the most relaxing environment. , While some dental visits ...
(Date:2/10/2016)... ... February 10, 2016 , ... Gout is like no other joint pain. It ... severe, with intense swelling and redness. It is triggered by the crystallization of uric ... are the most susceptible, according to the February 2016 issue of Harvard Men's Health ...
(Date:2/10/2016)... Boston, Massachusetts (PRWEB) , ... February 10, 2016 ... ... practice models to effectively measure change in their patients. Research shows that the ... traditional methods. To help therapists overcome this challenge and learn more about the ...
Breaking Medicine News(10 mins):