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Iranian Journal of Medical Physics، جلد ۲۱، شماره ۱، صفحات ۱۶-۲۹
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عنوان انگلیسی Dosimetric Validation of Physical and Biological Indexes from the Dose-Volume Histogram for Evaluation of 3D-CRT and IMRT Techniques with VMAT Treatment Plan Techniques in Cervical Tumors from In-House Developed Software
چکیده انگلیسی مقاله Introduction:This study aims to investigate the Normal Tissue Complication Probability (NTCP) and Tumor Control Probability (TCP) of cervical cancer from Niemierko radiobiological model and compared with Lyman-Kutcher-Butcher (LKB) model’s effective volume parameter in three different planning techniques such as 3-Dimensional Conformal Radiation Therapy (3D-CRT), Intensity Modulated Radiotherapy (IMRT) and Volumetric Arc Therapy (VMAT).Material and Methods:Twenty patients were selected with Grade II and Grade III and the treatment plan was initially generated for 3D-CRT, IMRT and VMAT. The physical dose from each voxel in radiotherapy treatment planning was extracted through a dose volume histogram (DVH) text file from in-built software developed using python program.  Software was developed by freely available python integration with an integrated Oracle database to store the outcome results with user-friendly graphical user interface for editing the radiological parameter values and viewing the DVH graph. The dosimetricconformalities parameters such as homogeneity index (HI) and conformity index (CI) along with radiobiological parameters such as TCP, NTCP and effective volume (Veff) were compared with three different planning techniques.Results:The IMRT and VMAT dose delivery techniques improve the efficiency of the treatment of cervical cancer with good coverage of target volume as well as low irradiation of Organ at Risk (OARs) compared with 3D-CRT.Conclusion: There is no significant difference in effective volume for IMRT and VMAT, which proportionally increases with the advanced planning techniques, causes insignificant complication probability to normal tissues. Other conformalities parameters were showing good agreement for all the three techniques.
کلیدواژه‌های انگلیسی مقاله NTCP, TCP, conformity index, VMAT, IMRT
نویسندگان مقاله | Sougoumarane Dashnamoorthy
Thangam Cancer Hospital, Namakkal, Tamilnadu-637001, INDIA. 2. Department of Physics, Jamal Mohamed College (Autonomous), Affiliated to Bharathidasan university, Tiruchirappalli, Tamil Nadu-620020, India.


| Ebenezar Jeyasingh
Department of Physics, Jamal Mohamed College (Autonomous), Affiliated to Bharathidasan university, Tiruchirappalli, Tamil Nadu-620020, India.


| VINDHYAVASINI PANDEY
Department of Medical Physics & Regulatory Affairs, Hind Institute of Medical Sciences, Safedabad, Barabanki-225003, UP, India


| Karthick Rajamanickam
Thangam Cancer Hospital, Namakkal, Tamilnadu-637001, INDIA.


| Sachin S Kotur
Department of Radiation Oncology, Malnad Hospital & Institute of Oncology, Shimoga-577222, India.


| Durga Prasad Sahoo
Department of Radiation oncology, Acharya Harihar PG Insititute of Cancer, Cuttack-753007, India.
نشانی اینترنتی https://ijmp.mums.ac.ir/article_21812.html
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