PMID: 8985927Jan 1, 1996Paper

A comparison of high-energy oblique lung irradiation techniques

Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists
K J Forbes-MeyerlM J Chapman

Abstract

The lung cancer death rate in the U.S. rose 440% between 1957-59 and 1987-89, from 5.4 to 29.4 per 100,000. While surgical resection of small, localized carcinomas offers the best prognosis, only 15-20% of lung cancers fall into this category. The remaining 80-85% of patients are generally candidates for radiation therapy. Typically, the tumor volume (plus a 2 cm margin) and the mediastinum will be irradiated, using parallel opposed anterior and posterior ports, until the spinal cord has reached tolerance at 45 Gy. At this point, an off-cord lateral or oblique treatment technique will be used to complete the prescribed dose to the tumor. The depth to isocenter for oblique ports may easily be 15 cm. With this depth, a high-energy x-ray beam seems to be required; however, the beam may pass through a significant portion of lung tissue, reducing the equivalent depth. Another factor to consider is the build-up region beyond the lower density lung tissue. Two different energy beams, 6 MV and 18 MV, were compared for the oblique treatment ports. Plans were run using a thorax CT slice of an anthropomorphic phantom for parallel opposed oblique fields at these two energies, each with and without CT correction. Further data were collected...Continue Reading

References

May 16, 1992·BMJ : British Medical Journal·R Souhami
Dec 1, 1991·Journal of Thoracic Imaging·S A Rubin
Mar 15, 1996·International Journal of Radiation Oncology, Biology, Physics·P J WhiteD T Huang
Oct 1, 1996·Current Opinion in Immunology

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Acta Radiologica. Oncology
S C PrasadR L Gerber
Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists
N A JanjanB Campbell
Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
J N Fields, J E Marks
Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
Yuchuan FuPing Li
© 2022 Meta ULC. All rights reserved