Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2021  |  Volume : 17  |  Issue : 1  |  Page : 56-61

A comparison of radiotherapy treatment planning techniques in patients with rectal cancers by analyzing testes doses

1 Department of Radiation Oncology, University of Health Sciences Antalya Education and Research Hospital, Antalya, Turkey
2 Department of Radiation Oncology, University of Health Sciences Adana City Training and Research Hospital, Adana, Turkey

Correspondence Address:
Evrim Duman
Department of Radiation Oncology, University of Health Sciences Antalya Education and Research Hospital, Antalya
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_328_19

Rights and Permissions

Purpose: To evaluate the target volume (TV) and critical organ doses with priority of testes with the comparison of conformal radiotherapy (CRT), dynamic intensity-modulated radiotherapy (DIMRT), and volumetric modulated arc therapy (VMAT) techniques. Materials and Methods: CRT, DIMRT, and VMAT techniques were generated on computed tomography images in prone position of 10 male patients with distal rectal cancer. Conformity index (CI), heterogeneity index (HI), treatment time, and monitor units were examined; dose-volume-histograms (DVHs) for the TV and the organs at risk (OARs) were evaluated. Results: Target dose coverage of all treatment plans was similar. HI and CI values for DIMRT and VMAT were closer to “1” compared to CRT. DVH parameters for OARs were decreased with DIMRT and VMAT compared to CRT. The percent volume (Vx) of 3 Gy dose of testes was 62.01% (±25.45%), 42.68% (±16.42%), and 35.89% (±14.97%) in the CRT, DIMRT, and VMAT techniques, respectively. V3 of testes decreased with VMAT compared to CRT and DIMRT (P = 0.008 and P = 0.051, respectively). Conclusion: Modern radiotherapy techniques are superior to conformal techniques in planning quality parameters and sparing OARs. DIMRT and VMAT could be considered instead of CRT in the desire to preserve fertility of patients with rectal cancer.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded48    
    Comments [Add]    

Recommend this journal