• Users Online: 309
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2021  |  Volume : 12  |  Issue : 4  |  Page : 172-179

Dosimetric comparison of three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and volumetric modulated arc therapy in high-risk prostate cancer

1 Department of Radiation Oncology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
2 Department of Radiation Oncology, Kanuni Research and Education Hospital, Trabzon, Turkey
3 Department of Radiation Oncology, Onkomer Oncology Center, İzmir, Turkey

Correspondence Address:
Dr. Ozlem Aynaci
Department of Radiation Oncology, Faculty of Medicine, Karadeniz Technical University, Trabzon
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jrcr.jrcr_34_21

Rights and Permissions

Purpose: In this study, we aimed to compare the doses of the prostate gland and organs at risk (OAR) using dose volume histograms after external body radiation therapy options, Intensity modulated radiation therapy (IMRT), volumetric modulated arc therapy (VMAT), and hybrid three-dimensional conformal radiotherapy (3DCRT), in patients diagnosed with high-risk prostate cancer. Materials and Methods: A total of 14 male patients with high-risk prostate cancer who received prostate radiotherapy combined with elective nodal irradiation, were selected; the total prostate doses were 78 Gy in 39 fractions and pelvic lymph nodes doses were 56 Gy in 28 fractions. The target coverage was evaluated in the PTV with the following parameters: Dmean, Dmin, Dmax, CN, and HI, and each normal tissue was evaluated using percentage volumes of reference doses which were previously defined by Radiation Therapy Oncology Group and QUANTEC criteria. Results: In target volumes, 95% of the targeted dose was adequately covered in all three of the 3BKRT, IMRT, and VMAT techniques. In terms of OAR, the percentages of volume exposed to high doses are much lower in the reverse plan IMRT and VMAT technique compared to the 3DCRT technique. There was no significant superiority between IMRT and VMAT in terms of reference values for rectum, bladder, femoral heads, bulbus penis, and small intestines. Conclusion: The superiority of IMRT and VMAT techniques over 3DCRT techniques has been clearly demonstrated, especially in terms of OAR, in patients with a diagnosis of high-risk prostate cancer. It is thought that one of these two techniques can be preferred by the possibilities in every radiotherapy clinic.

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 Downloaded104    
    Comments [Add]    

Recommend this journal