نتایج جستجو برای: radiotherapy intensity modulated

تعداد نتایج: 290062  

2011
Kate Bak Mark J Dobrow David Hodgson Anthony Whitton

BACKGROUND Research regarding the decision to adopt and implement technological innovations in radiation oncology is lacking. This is particularly problematic since these technologies are often complex and rapidly evolving, requiring ongoing revisiting of decisions regarding which technologies are the most appropriate to support. Variations in adoption and implementation decisions for new radia...

Journal: :The British journal of radiology 2003
S Webb

Intensity-modulated radiation therapy (IMRT) can sculpt the high-dose volume around the site of disease with hitherto unachievable precision. Conformal avoidance of normal tissues goes hand in hand with this. Inhomogeneous dose painting is possible. The technique has become a clinical reality and is likely to be the dominant approach this decade for improving the clinical practice of photon the...

Journal: :Current Oncology 2009
R. Samant L. Gerig L. Montgomery R. MacRae G. Fox B. Nyiri K. Carty M. MacPherson

Many modern radiotherapy centers now have image-guided intensity-modulated radiotherapy (IG-IMRT) tools available for clinical use, and the technique offers many options for patients requiring palliative radiotherapy. We describe a single-institution experience with IG-IMRT for short-course palliative radiotherapy, highlighting the unique situations in which the technique can be most effectivel...

Journal: :Medical physics 2001
M Langer V Thai L Papiez

Leaf sequencing algorithms may use an unnecessary number of monitor units or segments to generate intensity maps for delivery of intensity modulated radiotherapy (IMRT) using multiple static fields. An integer algorithm was devised to generate a sequence with the fewest possible segments when the minimum number of monitor units are used. Special hardware related restrictions on leaf motion can ...

2014

IMRT / 1 The American College of Radiology, with more than 30,000 members, is the principal organization of radiologists, radiation oncologists, and clinical medical physicists in the United States. The College is a nonprofit professional society whose primary purposes are to advance the science of radiology, improve radiologic services to the patient, study the socioeconomic aspects of the pra...

Journal: :Visualized cancer medicine 2021

Purpose : This study aims to compare the dosimetric differences in intensity-modulated proton therapy (IMPT) using pencil beam scanning technology and photon-based radiotherapy (IMRT) hypofractionated whole-breast irradiation (HF-WBI) find out more beneficial technique. Methods Materials Eight breast cancer (BC) patients with pathological stage T1 ~ 2N0M0 were immobilized underwent 4D-CT used d...

Journal: :Cancer Imaging 2004
A Taylor M E B Powell

Intensity-modulated radiotherapy (IMRT) is one of the most important recent developments in oncology. It enables precise conformation of the radiation dose to the target volume. It has the potential to significantly reduce long-term morbidity and improve local control. This article explains the basic principles of IMRT in comparison to other planning techniques. The current clinical data are pr...

2015
Zhilei Liu Shen Eric Murray Naichang Yu Matthew D. Kolar John F. Greskovich Shlomo Koyfman Karl Bzdusek Ping Xia Sara Lin Qingyang Shang Sara Pirozzi Andrew Godley

The AAPM Professional Liability Insurance program provides a unique ability for medical physicists to obtain liability coverage for risks arising from the practice of medical physics. In the near future, the program is expected to introduce a new occurrence-form coverage option which has important implications and differences from the existing claims-made coverage. Since both forms will be offe...

2016
Michael Snyder Robert Halford Cory Knill Jeffrey N. Adams Todd Bossenberger Adrian Nalichowski Ahmad Hammoud Jay Burmeister

We investigate the relationship between the various parameters in the Monaco MLC model and dose calculation accuracy for an Elekta Agility MLC. The vendor-provided MLC modeling procedure - completed first with external vendor participation and then exclusively in-house - was used in combination with our own procedures to investigate several sets of MLC modeling parameters to determine their eff...

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