RADIOTHERAPY TECHNIQUE INTENSITY MODULATED RADIATION THERAPY (IMRT) IN BREAST CANCER CASES IN PASAR MINGGU HOSPITAL
DOI:
https://doi.org/10.54973/miror.v5i2.999Keywords:
Radiotherapy; , Breast; , Cancer; , IMRTAbstract
Background: Breast cancer is the most common type of cancer among women in Indonesia and remains one of the leading causes of cancer-related mortality. Radiotherapy plays a crucial role as both an adjuvant and curative treatment modality to improve local disease control following surgery. Advances in radiotherapy technology have led to the development of Intensity Modulated Radiation Therapy (IMRT), which enables highly conformal dose distribution to the target volume while minimizing radiation exposure to surrounding healthy tissues. Nevertheless, the clinical implementation of IMRT for breast cancer treatment in hospitals still requires evaluation of the treatment workflow and irradiation techniques to ensure optimal therapeutic outcomes.This study aimed to describe the implementation of the IMRT technique in breast cancer patients at the Radiotherapy Installation of Pasar Minggu Regional General Hospital, from the initial consultation to the completion of radiotherapy treatment.
Methods: This study employed a qualitative approach using a case study design involving a breast cancer patient. Data were collected through direct observation of the radiotherapy workflow, including consultation with a radiation oncologist, CT simulation, Treatment Planning System (TPS), verification using an On-Board Imager (OBI), and radiation delivery using a Linear Accelerator (LINAC).
Results: Radiotherapy planning was performed using the IMRT technique with six irradiation fields at gantry angles of 20°, 60°, 220°, 260°, 300°, and 340°. Evaluation of the Dose Volume Histogram (DVH) demonstrated that target dose coverage remained within the International Commission on Radiation Units and Measurements (ICRU) recommended range of 95–107%. Patient positioning verification using anterior–posterior/posterior–anterior (AP/PA) and lateral OBI imaging confirmed accurate patient alignment prior to treatment. The prescribed radiation dose was 5000 cGy delivered in 25 fractions of 200 cGy each.
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Azharuddin, S. K., Kumar, P., Navitha, S., Chauhan, A. K., Kumar, P., Nigam, J., & Mehta, A. (2022). Comparison of dosimetric parameters and clinical outcomes in inversely planned intensity-modulated radiotherapy (IMRT) and field-in-field forward planned IMRT for the treatment of breast cancer. Cureus, 14(7), e26692. https://doi.org/10.7759/cureus.26692
Burnet, N. G., Thomas, S. J., Burton, K. E., & Jefferies, S. J. (2004). Defining the tumour and target volumes for radiotherapy. Cancer Imaging, 4(2), 153–161. https://doi.org/10.1102/1470-7330.2004.0054
Fahrurrozi, & Wasilah. (2023). Deteksi dini kanker payudara menggunakan algoritma K-Nearest Neighbor (KNN) dan Decision Tree C4.5. Teknika, 17(2), 427–434. https://jurnal.polsri.ac.id/index.php/teknika/article/view/7565
Gong, L., Zhang, Y., Liu, C., Zhang, M., & Han, S. (2021). Application of radiosensitizers in cancer radiotherapy. International Journal of Molecular Sciences, 22(20), 1083. https://doi.org/10.3390/ijms22201083
International Atomic Energy Agency. (2022). Accuracy requirements and uncertainties in radiotherapy. IAEA.
International Commission on Radiation Units and Measurements. (2010). Prescribing, recording, and reporting photon-beam intensity-modulated radiation therapy (IMRT) (ICRU Report 83). Journal of the ICRU, 10(1).
Maass, K., Kim, M., & Aravkin, A. (2022). A nonconvex optimization approach to IMRT planning with dose-volume constraints. INFORMS Journal on Computing, 34(3), 1366–1386. https://doi.org/10.1287/ijoc.2021.1129
Nurhamiyah, Y., Juwono, A. L., Djarwani, P., & Ph, D. (2014). Ketelitian reproduksibilitas alat fiksasi pasien sebelum dan sesudah radiasi. Jurnal Fisika dan Aplikasinya, 15(2), 71–75.
Schoepen, M., Speleers, B., De Neve, W., Vakaet, V., Deseyne, P., Paelinck, L., Van Greveling, A., Veldeman, L., Detand, J., & De Gersem, W. (2022). Four irradiation and three positioning techniques for whole-breast radiotherapy: Is sophisticated always better? Journal of Applied Clinical Medical Physics, 23(11). https://doi.org/10.1002/acm2.13720
Sofa, T., Wardiyah, A., & Rilyani. (2024). Faktor risiko kanker payudara pada wanita. Jurnal Penelitian Perawat Profesional, 6(3), 1333–1336.
Therapy, I. R. (2015). Intensity-modulated radiation therapy (IMRT): What is intensity-modulated radiation therapy and how is it used? RadiologyInfo.org.
Vaidya, J. S. (2024). Principles of cancer treatment by radiotherapy. Surgery, 42(3), 139–149. https://doi.org/10.1016/j.mpsur.2023.12.001
Zhang, M., dkk. (2022). Dosimetric and radiobiological comparison of simultaneous integrated boost radiotherapy for early-stage right-side breast cancer between IMRT, hybrid IMRT, and hybrid VMAT. Radiation Oncology, 17, Article 60. https://doi.org/10.1186/s13014-022-02009-2
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Copyright (c) 2026 Dody Arland, Nursama Heru , Khairil Anwar , Petra P Wellyam , Dea Ryangga , Danil Hulmansyah
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