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 Videos

[Dosimetric characterization of a multileaf collimator].

M Stasi1, B Baiotto, F Palamara

  • 1U.O.A. di Fisica Sanitaria, Ospedale Mauriziano Umberto L, Torino. radioterapia@mauriziano.it

La Radiologia Medica
|August 5, 1999
PubMed
Summary

This study evaluated the dosimetric properties of a multileaf collimator (MLC) for 6 and 18 MV photon beams. The MLC demonstrated good accuracy for conformal radiotherapy, offering improved reproducibility and accuracy over conventional blocks.

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

Feasibility and safety of ALPPS procedure: our experience.

Surgical endoscopy·2025
Same author

End-to-end test for lung SBRT: An Italian multicentric pilot experience.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)·2022
Same author

Improving dose delivery accuracy with EPID in vivo dosimetry: results from a multicenter study.

Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]·2021
Same author

Quality indicators for hyperthermia treatment: Italian survey analysis.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)·2020
Same author

Predicting locally advanced rectal cancer response to neoadjuvant therapy with <sup>18</sup>F-FDG PET and MRI radiomics features.

European journal of nuclear medicine and molecular imaging·2019
Same author

Patient's Peak Skin Dose evaluation using Gafchromic films in interventional cardiology procedures and its correlation with other dose indicators.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)·2018

Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Radiotherapy Technology

Context:

  • Introduction of a new multileaf collimator (MLC) on a dual energy linear accelerator.
  • Evaluation of dosimetric characteristics for 6 and 18 MV photon beams in clinical practice.

Purpose:

  • To assess the dosimetric performance of the MLC, including radiation transmission, leakage, depth dose, output factors, and effective penumbra.
  • To compare MLC performance against conventional cerrobend blocks and validate treatment planning system (TPS) calculations.

Summary:

  • MLC exhibits low transmission (approx. 2%) and interleaf leakage (approx. 0.5%), but significant junction leakage (25-33%).
  • Depth dose curves are comparable to conventional jaws; MLC fields result in lower skin dose (3.5%) than cerrobend blocks.

Related Experiment Videos

  • Effective penumbra is approximately 11 mm, slightly wider than blocks, increasing with depth and field size. TPS calculations show <1% difference.

    • Impact:

    • The MLC is suitable for conformal radiotherapy, enhancing treatment reproducibility and accuracy.
    • MLC offers dosimetric advantages over cerrobend blocks, including reduced skin dose.
    • MLC enables intensity-modulated radiation therapy (IMRT), allowing for improved dose shaping and overcoming static therapy limitations.