50. Dose diminution to bladder and rectal points during high dose rate inlracavitary brachytherapy of cervical carcinoma by utilizing balloon catheters to displace critical structures

Tony Y. Eng

Research output: Contribution to journalArticle

Abstract

Purpose: To ascertain the potential for dose reduction to bladder and rectal points by utilizing intravaginal Foley balloon catheters as a mechanism for structural displacement during Tandem and Ovoid (TNO) High-Dose Rate Intracavitary Brachytherapy (HDR) of the uterine cervix. Methods and Materials: In 15 patients, 2 Foley balloons were placed intravaginally, with one balloon placed superior to the tandem and one inferior, as close to the TNO flange as patient geometry allowed. A series of 41 consecutive digitized treatment plans were assessed with and without liquid contrast inflation of Foley catheter balloons. Planning X-rays were acquired and digitized. Software calculated dose was then defined for 2 bladder and 2 rectal points, both with and without Foley balloon inflation. Results were then assessed utilizing parametric statistical analysis. Results: Collectively and between equivalent points, a statistically significant (P = .01) diminution in calculated dose was observed with inflation of intracavitary balloon catheters. Conclusion: The advantages available from dose reduction using intracavitary balloon catheters include decreased HDR induced organ toxicity, case-by case customizability, and low cost of implementation. As such, further exploration of this technique is warranted.

Original languageEnglish (US)
Pages (from-to)497
Number of pages1
JournalCancer Journal
Volume9
Issue number6
StatePublished - 1996

Fingerprint

Brachytherapy
Economic Inflation
Urinary Bladder
Catheters
Carcinoma
Cervix Uteri
Software
X-Rays
Costs and Cost Analysis
Therapeutics

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

@article{2a3a6542fa42452fbfbf170693369069,
title = "50. Dose diminution to bladder and rectal points during high dose rate inlracavitary brachytherapy of cervical carcinoma by utilizing balloon catheters to displace critical structures",
abstract = "Purpose: To ascertain the potential for dose reduction to bladder and rectal points by utilizing intravaginal Foley balloon catheters as a mechanism for structural displacement during Tandem and Ovoid (TNO) High-Dose Rate Intracavitary Brachytherapy (HDR) of the uterine cervix. Methods and Materials: In 15 patients, 2 Foley balloons were placed intravaginally, with one balloon placed superior to the tandem and one inferior, as close to the TNO flange as patient geometry allowed. A series of 41 consecutive digitized treatment plans were assessed with and without liquid contrast inflation of Foley catheter balloons. Planning X-rays were acquired and digitized. Software calculated dose was then defined for 2 bladder and 2 rectal points, both with and without Foley balloon inflation. Results were then assessed utilizing parametric statistical analysis. Results: Collectively and between equivalent points, a statistically significant (P = .01) diminution in calculated dose was observed with inflation of intracavitary balloon catheters. Conclusion: The advantages available from dose reduction using intracavitary balloon catheters include decreased HDR induced organ toxicity, case-by case customizability, and low cost of implementation. As such, further exploration of this technique is warranted.",
author = "Eng, {Tony Y.}",
year = "1996",
language = "English (US)",
volume = "9",
pages = "497",
journal = "Cancer Journal from Scientific American",
issn = "1528-9117",
publisher = "Association Pour le Developpement de la Communication Cancerologique",
number = "6",

}

TY - JOUR

T1 - 50. Dose diminution to bladder and rectal points during high dose rate inlracavitary brachytherapy of cervical carcinoma by utilizing balloon catheters to displace critical structures

AU - Eng, Tony Y.

PY - 1996

Y1 - 1996

N2 - Purpose: To ascertain the potential for dose reduction to bladder and rectal points by utilizing intravaginal Foley balloon catheters as a mechanism for structural displacement during Tandem and Ovoid (TNO) High-Dose Rate Intracavitary Brachytherapy (HDR) of the uterine cervix. Methods and Materials: In 15 patients, 2 Foley balloons were placed intravaginally, with one balloon placed superior to the tandem and one inferior, as close to the TNO flange as patient geometry allowed. A series of 41 consecutive digitized treatment plans were assessed with and without liquid contrast inflation of Foley catheter balloons. Planning X-rays were acquired and digitized. Software calculated dose was then defined for 2 bladder and 2 rectal points, both with and without Foley balloon inflation. Results were then assessed utilizing parametric statistical analysis. Results: Collectively and between equivalent points, a statistically significant (P = .01) diminution in calculated dose was observed with inflation of intracavitary balloon catheters. Conclusion: The advantages available from dose reduction using intracavitary balloon catheters include decreased HDR induced organ toxicity, case-by case customizability, and low cost of implementation. As such, further exploration of this technique is warranted.

AB - Purpose: To ascertain the potential for dose reduction to bladder and rectal points by utilizing intravaginal Foley balloon catheters as a mechanism for structural displacement during Tandem and Ovoid (TNO) High-Dose Rate Intracavitary Brachytherapy (HDR) of the uterine cervix. Methods and Materials: In 15 patients, 2 Foley balloons were placed intravaginally, with one balloon placed superior to the tandem and one inferior, as close to the TNO flange as patient geometry allowed. A series of 41 consecutive digitized treatment plans were assessed with and without liquid contrast inflation of Foley catheter balloons. Planning X-rays were acquired and digitized. Software calculated dose was then defined for 2 bladder and 2 rectal points, both with and without Foley balloon inflation. Results were then assessed utilizing parametric statistical analysis. Results: Collectively and between equivalent points, a statistically significant (P = .01) diminution in calculated dose was observed with inflation of intracavitary balloon catheters. Conclusion: The advantages available from dose reduction using intracavitary balloon catheters include decreased HDR induced organ toxicity, case-by case customizability, and low cost of implementation. As such, further exploration of this technique is warranted.

UR - http://www.scopus.com/inward/record.url?scp=33749571129&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749571129&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33749571129

VL - 9

SP - 497

JO - Cancer Journal from Scientific American

JF - Cancer Journal from Scientific American

SN - 1528-9117

IS - 6

ER -