Multiadaptive Plan (MAP) IMRT to Accommodate Independent Movement of the Prostate and Pelvic Lymph Nodes

Abstract

We found that the bi-directional prostate shifts, particular in anterior-posterior and superior-inferior directions, must be considered with the multiple adaptive plan (MAP) strategy. With this strategy, the verification plans calculated with daily MV-CBCT achieved similar dose coverage for the prostate and pelvic lymph nodes while adequate protecting the rectum and bladder. Furthermore, computer-assisted, atlas-based segmentation can improve consistency and efficiency in delineating volumes of the prostate and pelvic lymph nodes. Our future study will investigate whether the MLC-shifting strategy can effectively produce multiple plans for the multiple adaptive plan strategy and improve clinical work efficiency.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2010
Accession Number
ADA538671

Entities

People

  • Ping Xia

Organizations

  • University of California, San Francisco

Tags

DTIC Thesaurus Topics

  • Anatomy
  • Biomedical Research
  • Cancer
  • Consistency
  • Lymph Nodes
  • Lymphatic System
  • Medical Personnel
  • Neoplasms
  • Oncology
  • Pelvic Bones
  • Prostate
  • Prostate Cancer
  • Radiation Oncology
  • Radiotherapy
  • Therapy
  • Tissues
  • X-Ray Computed Tomography

Fields of Study

  • Medicine

Readers

  • Medical Imaging.
  • Systems Analysis and Design