Radiation Oncology Journal

The Korean Society for Radiation Oncology (대한방사선종양학회)
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Impact of testicular shielding in liposarcoma to scrotum by using radio-photoluminescence glass dosimeter (RPLGD): a case report

  • Oonsiri, Puntiwa (Department of Radiation Oncology, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society) ;
  • Saksornchai, Kitwadee (Department of Radiation Oncology, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society) ;
  • Suriyapee, Sivalee (Faculty of Medicine, Chulalongkorn University)
  • Received : 2018.03.24
  • Accepted : 2018.06.07
  • Published : 2018.09.30
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Abstract

Radiation protection in the scrotum to reduce the risk of genetic effect in the future is very important. This study aimed to measure the scrotal dose outside the treatment fields by using the radio-photoluminescence glass dosimeter (RPLGD). The characteristics of RPLGD model GD-302M were studied. Scattered dose to scrotum was measured in one liposarcoma case with the prescribed dose of 60 Gy. RPLGDs were placed in three different locations: one RPLGD was positioned at the posterior area which closer to the scrotum, and the other two RPLGDs were placed between the penis and the scrotum. Three RPLGDs were employed in each location. The scattered doses were measured in every fraction during the whole course of treatment. The entire number of 100 RPLGDs showed the uniformity within ±2%. The signal from RPLGD demonstrated linear proportion to the radiation dose (r = 0.999). The relative energy response correction factor was 1.05. The average scrotal dose was 4.1 ± 0.9 cGy per fraction. The results presented a wide range since there was a high uncertainty during RPLGD placement. The total scrotal dose for the whole course of treatment was 101.9 cGy (1.7% of the prescribed dose). The RPLGD model GD-302M could be used to measure scattered dose after applying the relative energy correction factor.

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References

  1. Clifford Chao KS, Perez CA, Brady LW. Radiation oncology: management decisions. 2nd ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2002.
  2. Ravichandran R, Binukumar JP, Kannadhasan S, Shariff MH, Ghamrawy KE. Testicular shield for para-aortic radiotherapy and estimation of gonad doses. J Med Phys 2008;33:158-61.
  3. Singhal MK, Kapoor A, Singh D, et al. Scattered radiation to gonads: role of testicular shielding for para-aortic and homolateral illiac nodal radiotherapy. J Egypt Natl Canc Inst 2014;26(2):99-101.
  4. Purdy JA, Stiteler RD, Glasgow GP, Mill WB. Gonadal shield. Radiology 1975;117:226.
  5. Hsu SM, Yeh SH, Lin MS, Chen WL. Comparison on characteristics of radiophotoluminescent glass dosemeters and thermoluminescent dosemeters. Radiat Prot Dosimetry 2006;119:327-31.
  6. Yukihara EG, Whitley VH, McKeever SW, Akselrod AE, Akselrod MS. Effect of high-dose irradiation on the optically stimulated luminescence of Al2O3:C. Radiat Meas 2004;38:317-30.
  7. Yukihara EG, McKeever SW. Spectroscopy and optically stimulated luminescence of Al2O3:C using time-resolved measurements. J Appl Phys 2006;100:083512.
  8. Yukihara EG, McKeever SW. Optically stimulated luminescence (OSL) dosimetry in medicine. Phys Med Biol 2008;53:R351-79.
  9. Edmund JM, Andersen CE, Marckmann CJ, Aznar MC, Akselrod MS, Botter-Jensen L. CW-OSL measurement protocols using optical fibre Al2O3:C dosemeters. Radiat Prot Dosimetry 2006;119:368-74.
  10. Knezevic Z, Stolarczyk L, Bessieres I, Bordy JM, Miljanic S, Olko P. Photon dosimetry methods outside the target volume in radiation therapy: Optically stimulated luminescence (OSL), thermoluminescence (TL) and radiophotoluminescence (RPL) dosimetry. Radiat Meas 2013;57:9-18.
  11. Kry SF, Bednarz B, Howell RM, et al. AAPM TG 158: Measurement and calculation of doses outside the treated volume from external-beam radiation therapy. Med Phys 2017;44:e391-e429.
  12. Hsu SM, Yang HW, Yeh TC, et al. Synthesis and physical characteristics of radiophotoluminescent glass dosimeters. Radiat Meas 2007;42:621-4.
  13. Son K, Jung H, Shin SH, et al. Evaluation of the dosimetric characteristics of a radiophotoluminescent glass dosimeter for high-energy photon and electron beams in the field of radiotherapy. Radiat Meas 2011;46:1117-22.
  14. Huang DY, Hsu SM. Radio-photoluminescence glass dosimeter (RPLGD). In: Gali-Muhtasib H, editor. Advances in cancer therapy. London: InTech; 2011. p. 553-68.
  15. Pyone YY, Suriyapee S, Sanghangthum T, Oonsiri S, Tawonwong T. Determination of effective doses in image-guided radiation therapy system. J Phys Conf Ser 2016;694:012007.

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