Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 15, 2026

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System
08:25

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Published on: April 11, 2018

Re-planning for compensator-based IMRT with original compensators.

Geoffrey Zhang1, Vladimir Feygelman, Craig Stevens

  • 1Division of Radiation Oncology, Moffitt Cancer Center, Tampa, FL, USA.

Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists
|March 9, 2010
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Implementing Timely Germline Genetic Testing for Patients With Pancreatic Cancer Using a Genetics Copilot for Point-of-Care Education and Health Assessment.

JCO precision oncology·2026
Same author

Diagnoses of pulmonary embolism from non-contrast 4DCT using image processing-derived quantitative perfusion scores.

npj biomedical innovations·2026
Same author

CLO26-076: Prognostic Outcomes in Resected Pancreatic Cancer Treated With Neoadjuvant Chemotherapy Alone: Impact of Integrated Pathologic Score.

Journal of the National Comprehensive Cancer Network : JNCCN·2026
Same author

Commissioning and clinical implementation of Monaco treatment planning system on a compact pencil beam scanning proton therapy system.

Journal of applied clinical medical physics·2026
Same author

Recommendations for contouring of gross tumour volume for locally advanced lung cancer using magnetic resonance imaging.

Physics and imaging in radiation oncology·2026
Same author

CLO26-076: Prognostic Outcomes in Resected Pancreatic Cancer Treated With Neoadjuvant Chemotherapy Alone: Impact of Integrated Pathologic Score.

Journal of the National Comprehensive Cancer Network : JNCCN·2026
Same journal

A case study of inhale and exhale split-course VMAT treatment to minimize dose to ribs.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same journal

Prospective clinical implementation of the robust optimization planning technique in long-course photon radiotherapy treatment for lung cancer.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same journal

Dosimetric comparison of target coverage, dose gradient, and low-dose bath in left-sided accelerated partial breast irradiation: CyberKnife versus conventional linac-based noncoplanar VMAT and 3D-CRT.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same journal

Cross-prescription validation of knowledge-based planning in prostate VMAT using a structured validation framework.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same journal

Dosimetric evaluation of beam block techniques in helical tomotherapy for extranodal nasal-type NK/T-cell lymphoma.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
Same journal

The dosimetric impact to bladder utilizing the Varian Edge linear accelerator for prostate stereotactic body radiation therapy.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists·2026
See all related articles

Compensator-based intensity-modulated radiotherapy (IMRT) can be adapted for abdominal cancer patients experiencing weight loss. This method reuses existing compensators with field-in-field beams, maintaining dosimetric quality while reducing treatment delays and costs.

Area of Science:

  • Radiation Oncology
  • Medical Physics

Background:

  • Compensator-based intensity-modulated radiotherapy (IMRT) offers advantages over multileaf collimator (MLC)-based IMRT for moving targets, including shorter beam-on time and potentially reduced secondary cancer risk.
  • However, patient weight loss during abdominal cancer treatment necessitates replanning, often requiring new compensators, leading to delays and increased costs.

Purpose of the Study:

  • To develop and evaluate a method for re-planning compensator-based IMRT without fabricating new compensators for abdominal cancer patients experiencing weight loss.
  • To maintain treatment plan quality and minimize treatment interruptions and costs associated with weight fluctuations.

Main Methods:

  • A novel re-planning technique was developed utilizing existing compensators combined with field-in-field (FiF) beams or blocked beams.

More Related Videos

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
08:17

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy

Published on: June 7, 2015

Related Experiment Videos

Last Updated: Jun 15, 2026

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System
08:25

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Published on: April 11, 2018

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
08:34

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
08:17

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy

Published on: June 7, 2015

  • New 4D computed tomography (CT) scans were registered to original planning scans, and contours were copied. Compensator beam weights were reduced, allowing FiF or blocked beams to optimize dose distribution.
  • The technique was applied to seven abdominal cancer cases.

    • Main Results:

    • The re-planned treatment plans generally maintained the same dosimetric quality as the original plans.
    • Target coverage and dose uniformity were often improved compared to plans without FiF/block modifications.
    • The approach successfully adapted plans for weight loss without requiring new compensators, saving time and cost.

    Conclusions:

    • Combining existing compensators with additional field-in-field or blocked beams is an effective strategy for optimizing intensity-modulated radiotherapy plans in abdominal cancer patients with weight loss.
    • This method preserves treatment quality, reduces planning time, and lowers costs compared to generating entirely new plans with new compensators.