Navigation Links
Clinicians Use Advanced Radiotherapy Imaging Techniques from Elekta to More Accurately Visualize Moving Tumors in Patients with Lung Cancer

LEEDS, England, Oct. 18 /PRNewswire/ -- A 67-year-old female patient with lung cancer presented physicians with a difficult challenge: her tumor was small and it rode up and down with her breathing. During her treatment set up, all doctors saw on their therapy system's imaging equipment was a blur of motion. Fortunately, Leeds Teaching Hospitals NHS Trust was able to utilize its Symmetry™ motion management software; new imaging technology from Elekta that enables clear visualization of moving targets.

"For this patient, and many similar lung cancer cases, Symmetry is invaluable," says her physician, Kevin N. Franks, M.D., Consultant in Clinical Oncology at St. James Institute of Oncology, Leeds Teaching Hospitals NHS Trust. "Our first patient's tumor was just 1.4 cm in size and its range of motion when she breathed was 2.4 cm because it was close to her diaphragm. Treating a small tumor with this kind of motion would normally have excluded her from aggressive treatments such as Stereotactic Body Radiation Therapy [SBRT], particularly if you can't see it well on imaging studies."

Symmetry provided sufficient scan quality to isolate the "moving" tumor and the patient -- the first at Leeds to benefit from the technique -- received five SBRT treatments, which use precise stereotactic targeting and a potent dose designed to achieve control of the tumor.

Symmetry captures tumor position virtually invisible on static imaging

Symmetry is a feature set of Elekta's X-ray Volume Imaging (XVI) package of software for Image Guided Radiation Therapy (IGRT). The software enables clinicians to add the fourth dimension (i.e. 4D) of motion to enhance image guidance with the patient in the treatment position just before therapy.

Leeds physicians had been able to use their 4D CT scanner to observe the tumor moving with the patient's breathing. However, they were able to see only an ill-defined blur when they used 3D XVI on their Elekta Synergy® system.

"It's like trying to take a picture of a fast-moving object using a camera that has a slow shutter speed," says Jonathan Sykes, Joint Lead Radiotherapy Imaging Physicist at Leeds. "But by taking the 4D CT planning scan -- which showed the 'envelope' of space within which the tumor was moving -- and matching that to 4D Symmetry reconstructions, which show where the tumor is during the breathing cycle, the scan quality was sufficient to localize the tumor."

After this first localization, three-minute 4D Symmetry scans were repeated three times for each of the five treatment sessions to localize the tumor, a second scan to verify needed patient position corrections and a third scan to ensure proper patient immobilization. Of note, the treatments are delivered while the patient is breathing freely.

"The 4D-XVI scan allowed us to see the tumor clearly and check that the tumor motion had not changed from the planning 4D CT scan. It made the team confident of the tumor localization," Dr. Franks says. "Without Symmetry, SBRT might still have been possible as the tumor was distant from critical organs, but we would have had to increase the treatment margins around the tumor to account for the increased uncertainty about the tumor's position. The worst case scenario is not using SBRT and treating her with a conventional technique that is likely less effective."

Since this first patient, Leeds physicians have used Symmetry in treatments of three additional patients with lung cancer. To download a case study detailing the application of Symmetry at Leeds, visit

About Elekta

Elekta is a human care company pioneering significant innovations and clinical solutions for treating cancer and brain disorders. The company develops sophisticated, state-of-the-art tools and treatment planning systems for radiation therapy and radiosurgery, as well as workflow enhancing software systems across the spectrum of cancer care.

Stretching the boundaries of science and technology, providing intelligent and resource-efficient solutions that offer confidence to both healthcare providers and patients, Elekta aims to improve, prolong and even save patient lives, making the future possible.

Today, Elekta solutions in oncology and neurosurgery are used in over 5,000 hospitals globally, and every day more than 100,000 patients receive diagnosis, treatment or follow-up with the help of a solution from the Elekta Group.

Elekta employs around 2,500 employees globally. The corporate headquarter is located in Stockholm, Sweden, and the company is listed on the Nordic Exchange under the ticker EKTAb. For more information about Elekta, please visit

Copyright©2010 PR Newswire.
All rights reserved

Related biology technology :

1. The Lancets New Online Medical Journal Helps Clinicians and Medical Researchers Find Practice-Changing Evidence Quickly and Easily
2. New Program Offers Breast Cancer Clinicians and Patients Support for Pre-Operative Clinical Assessment and Ongoing Surveillance of Lymphedema
3. New Procedures Consult Mobile From Elsevier Enables Clinicians to View Top Medical Procedures From Mobile Devices
4. Advanced Life Sciences Awarded U.S. Department of Defense Biodefense Contract Valued at up to $3.8 Million
5. Advanced Life Sciences Announces Second Quarter 2008 Financial Results
6. LUMEDX Introduces Advanced Multi-Modality, Multi-Vendor, Web-Enabled ECG Management Solution
7. Waters Brings Advanced Laboratory Data Management to Microsofts BioIT Alliance
8. Orange Coast Urology Offers Advanced In-Office Patient EVOLVE(R) Laser Prostate Treatment
9. Advanced Pest Control Earns Quality Pro Designation for General Pest Control Services
10. Independent Monitoring Board Recommends Completion of Accrual to Genasense(R) Phase 3 AGENDA Trial in Advanced Melanoma
11. Advanced Chemical Transport Opens Merced Facility
Post Your Comments:
(Date:11/30/2015)... - Zenith Epigenetics Corp. ("Zenith" or the "Company") today announced ... to its Board of Directors to replace Dr. Peter ... of experience as co-founder of Resverlogix, with expertise in the ... --> Dr. Wong remarked, "I am very ... long standing expertise in epigenetics and the advanced stage of ...
(Date:11/30/2015)... 30, 2015  Champions Oncology, Inc. (CSBR), engaged in ... personalize the development and use of oncology drugs, today ... will be presenting at the LD MICRO Investor Conference ... Time (PST).  The conference, held at the Luxe Sunset ... , will feature 200 small/micro-cap companies and is ...
(Date:11/30/2015)... 2015  HUYA Bioscience International, the leader in accelerating ... innovations, today announced it has signed a Memorandum of ... foster collaboration between KDDF and HUYA with the ultimate ... products for the global market. ... new innovative preclinical and clinical stage compounds. The company ...
(Date:11/30/2015)... and MAGDEBURG, Germany , November 30, ... (ECNR) in Vienna, Austria to ... Congress of NeuroRehabilitation (ECNR) in Vienna, Austria ... NovaVision, a wholly owned subsidiary of Vycor Medical, Inc. ... of its Internet-delivered NovaVision Therapy Suite at the 3rd ...
Breaking Biology Technology:
(Date:10/29/2015)... , Oct. 29, 2015  Rubicon Genomics, Inc., ... U.S. distribution of its DNA library preparation products, ... Rubicon,s new ThruPLEX Plasma-seq kit. ThruPLEX Plasma-seq has ... preparation of NGS libraries for liquid biopsies--the analysis ... and prognostic applications in cancer and other conditions. ...
(Date:10/29/2015)... NXTD ) ("NXT-ID" or ... the growing mobile commerce market and creator of ... leading marketplace to discover and buy innovative technology ... on StackSocial for this holiday season.   ... a biometric authentication company focused on the growing ...
(Date:10/27/2015)... , Oct. 27, 2015 In the ... issues of concern for various industry verticals such as ... due to the growing demand for secure & simplified ... various ,sectors, such as hacking of bank accounts, misuse ... electronic equipment such as PC,s, laptops, and smartphones are ...
Breaking Biology News(10 mins):