Sentences with phrase «radiation dose delivered»

The results will be used to accurately calculate the damage and radiation dose delivered to patients in radiotherapy, when cancer cells are bombarded with ionizing radiation.

Chesser says some of his group's studies of mice exposed to radioactivity around Chernobyl hint at hormesis: Small exposures over 10 to 45 days, they found, appeared to temper damage from an acute radiation dose delivered in the lab later.

Not exact matches

They're also advised to avoid flying when the sun is having a solar particle event, which can deliver a higher dose of radiation in one flight than is recommended for the entirety of a pregnancy.

Among the advances that have already been made are linear accelerators that generate higher - energy radiation beams, and more versatile patient tables that enable radiation doses to be delivered to the tumor from a variety of angles and directions.

For three weeks beforehand, Christine Hill - Kayser, the child's radiation oncologist, worked out with colleagues just how strong a dose to deliver, and where in his pelvic area to direct the beam.

«The use of advanced technologies may allow radiation therapy to be delivered in larger doses per treatment safely and potentially translate into an overall survival difference in NSCLC patient populations while improving patient quality of life through an acceleration of treatment courses,» said Dr. Iyengar.

«In an earlier phase I clinical study, our group has shown that increasing the dose of radiation delivered daily with high precision and using image guidance may offset the need for chemotherapy in improving survival, and it may also improve quality of life measures by reducing treatment periods in half.

«A Silent Crisis: Cancer Treatment in Developing Countries» Is a 2003 report from the International Atomic Energy Agency addresses the challenges of providing sufficient infrastructure — in particular, trained staff to deliver safe and effective radiation doses — for cancer treatment.

Proton beam therapy has the ability to deliver high doses of radiation directly to a tumour site with very little radiation being absorbed into healthy tissue.

Studies have shown that the risk of heart disease is higher in this group of women after radiation treatment because it can be difficult to ensure that a sufficient dose of radiation is delivered to the left breast while adequately shielding the heart from exposure.

Both methods deliver radiation to the tumor, but brachytherapy delivers much greater doses in a much more targeted manner.

This accuracy really shows up in areas such as radiation treatment for cancer, where the dose delivered to the patient's tumour needs to be accurate to within 3 per cent to achieve the best outcome.

«This study, one of only a few large studies to have follow - up beyond five years, demonstrates that patients who have head and neck cancers and who are being treated with radiation therapy alone have improved local - regional control and no increase in late toxicity when radiation therapy is delivered twice a day in two smaller doses which we call hyperfractionation,» said Jonathan J. Beitler, MD, MBA, FASTRO, lead author of the study and professor of radiation oncology, otolaryngology and hematology / medical oncology at the Winship Cancer Institute of Emory University School of Medicine in Atlanta.

Compared to the conventional radiation therapy (RT) approach of small doses given daily over several weeks, SBRT delivers a highly targeted, escalated dose of radiation in a single session or as many as five of treatments, usually between one and five fractions.

The total radiation delivered, 0.5 gray (Gy), was high relative to environmental levels (from sources such as naturally occurring radon in rock), but significantly lower than equivalent human doses experienced in CAT - scans or cancer therapy.

Stereotactic body radiation is a newer type of radiation therapy which delivers higher doses of radiation to the tumor but spares the surrounding tissue.

Proton therapy delivers high radiation doses directly to the brain tumor site, with no damage to nearby healthy tissue.

This bolus can be scanned to reveal exactly where the radiation therapy dose was delivered.

The frameworks absorb radiation better than tissue, delivering an extra dose of radiation to the tumor.

Our radiation oncologists, who are at the forefront of research, have been leaders in developing and evaluating new therapeutic methods that spare healthy tissue and deliver effective doses of radiation over a shorter period of time.

In reality, the procedure Wharam devised was stereotactic radiosurgery, a precisely targeted and technically sophisticated way to deliver high - dose radiation to cancer.

2004: IMRT (Intensity Modulated Radiation Therapy) Program began to deliver high - precision radiation that conforms to the three dimensional shapes of tumors and delivers higher and well defined doses of radiation to tumors, and even specific areas within tumors, while minimizing radiation to surrounding normal tissue.

Other radiation treatments that require targeting the tumor from an external source, which exposes healthy tissues and limits how high a dose can be safely delivered.

But, the required dose of radiation delivered to the chest is so high that a young woman getting just a single scan, for example, may increase her lifetime risk of breast cancer and lung cancer by between around 1 and 4 %.

Stereotactic radiation, delivered with VMAT technology and on - board imaging, offers an unprecedented ability to manipulate dose distribution.

It precisely delivers a high dose of radiation to a very focal area in the brain while avoiding normal brain tissue.

Patients are sedated or anesthetized for treatment, although briefly because the linear accelerator delivers the radiation dose quickly.

Patients must be anesthetized for treatment, although briefly because the LINAC delivers the radiation dose quickly.

CT or MRI images are imported into sophisticated treatment planning software which is used to create a custom radiation therapy plan to precisely deliver the desired dose to the patient's cancer.

It utilizes a robotic arm to deliver the entire therapeutic dose to an animal in 1 - 3 treatments, compared to conventional radiation therapy, which can employ up to 20 treatments.

Stereotactic radiosurgery, often used in human medicine, is designed to precisely deliver high doses of radiation to a tumor or localized cancer -LSB-...]

Stereotactic radiotherapy (SRT) is the use of this very precise technology to deliver high doses of radiation in fewer treatments compared to conventional protocols.