Dosimetric measurement of testicular dose for colorectal cancer using optically-stimulated luminescent dosimeters in radiotherapy

Lü, Cheng; Wang, F.N.; Lin, Hsin-Yi; Hsu, Charles Ching–Hsiang; Lin, James T.; Lai, Lu-Han

doi:10.1016/j.radphyschem.2020.108792

Cited by 14 publications

(3 citation statements)

References 20 publications

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“…Radiotherapy is performed in two forms; external and internal (brachytherapy) protocols. Radiotherapy's ideal purpose is to absorb the highest and the lowest dose of radiation by tumoral cells and surrounding healthy tissues, respectively [3][4][5]. Nanotherapy protocols are highly developed in various medical and therapeutic fields, including cancer treatment.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

J. Med. Chem. Sci.

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Section: Introductionmentioning

confidence: 99%

Untitled

2022

J. Med. Chem. Sci.

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“…There are two types of dosimeters classified by different ways (energies) to stimulate carriers; thermally stimulated luminescence (TSL) dosimeter uses thermal stimulation, [12][13][14][15][16][17] and optically stimulated luminescence (OSL) dosimeter utilizes light stimulation. [18][19][20][21][22] In contrast, some dosimeters use a phenomenon called radio-PL, [23][24][25][26][27][28][29][30] in which luminescent centers corresponding to the irradiation doses are generated newly, and RPL can be easily measured by a PL technique. The most prominent RPL material is Ag-doped phosphate glass (RPL glass).…”

Section: Introductionmentioning

confidence: 99%

Application of gold nanomaterials for ionizing radiation detection

Shiratori

Nakauchi

Kato

et al. 2022

Jpn. J. Appl. Phys.

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Au nanomaterials are known to change their properties significantly depending on their particle size. The prepared chloride glasses exhibited yellow emission (520 nm) upon UV rays (250 nm) irradiation, and the intensity of emission was found to decrease with X-ray dose. We concluded that this is because luminescent Au nanoclusters (AuNCs) of a few nanometers in size grow into Au nanoparticles (AuNPs) of a few tens of nanometers in size due to the photoreduction effect induced by irradiating X-ray, and the absorption (550 nm) attributed to the surface plasmon effect of AuNPs make decrease the AuNCs emissions. From the results of the changes of photoluminescence (PL) intensity concerning the irradiation X-ray dose, it was found that the PL intensity monotonically decreased 3000 mGy or more. This suggests that the Au-doped CsCl–BaCl2–ZnCl2 glass can act as an X-ray detection material in a specific dose region.

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“…The therapeutic techniques for breast cancer vary. Traditional 3D conformal radiotherapy (3D-CRT) uses the tangential fields method, in which it is difficult to achieve treatment target conformity and uniform dose distribution and leads to more irradiation around the target or normal tissue like the lung and heart and mores tissue damage and complications [4][5][6][7][8][9][10][11][12][13][14][15][16]. Intensity-modulated radiotherapy (IMRT) uses a multi-leaf collimator (MLC) and inverse treatment planning to modulate beam flux intensity to improve target conformity and lower irradiation dose to critical organs [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Dosimetric Comparison of Intensity-Modulated Radiotherapy, Volumetric Modulated Arc Therapy and Hybrid Three-Dimensional Conformal Radiotherapy/Intensity-Modulated Radiotherapy Techniques for Right Breast Cancer

Liu

Chang²,

Lin

et al. 2020

JCM

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This study aimed to compare different types of right breast cancer radiotherapy planning techniques and to estimate the whole-body effective doses and the critical organ absorbed doses. The three planning techniques are intensity-modulated radiotherapy (IMRT), volumetric modulated arc therapy (VMAT; two methods) and hybrid 3D-CRT/IMRT (three-dimensional conformal radiotherapy/intensity-modulated radiotherapy). The VMAT technique includes two methods to deliver a dose: non-continuous partial arc and continuous partial arc. A thermoluminescent dosimeter (TLD) is placed in the RANDO phantom to estimate the organ absorbed dose. Each planning technique applies 50.4 Gy prescription dose and treats critical organs, including the lung and heart. Dose-volume histogram was used to show the planning target volume (V95%), homogeneity index (HI), conformity index (CI), and other optimized indices. The estimation of whole-body effective dose was based on the International Commission on Radiation Protection (ICRP) Publication 60 and 103. The results were as follows: Continuous partial arc and non-continuous partial arc showed the best CI and HI. The heart absorbed doses in the continuous partial arc and hybrid 3D-CRT/IMRT were 0.07 ± 0.01% and 0% (V5% and V10%, respectively). The mean dose of the heart was lowest in hybrid 3D-CRT/IMRT (1.47 Gy ± 0.02). The dose in the left contralateral lung (V5%) was lowest in continuous partial arc (0%). The right ipsilateral lung average dose and V20% are lowest in continuous partial arc. Hybrid 3D-CRT/IMRT has the lowest mean dose to contralateral breast (organs at risk). The whole-body effective doses for ICRP-60 and ICRP-103 were highest in continuous partial arc (2.01 Sv ± 0.23 and 2.89 Sv ± 0.15, respectively). In conclusion, the use of VMAT with continuous arc has a lower risk of radiation pneumonia, while hybrid 3D-CRT/IMRT attain lower secondary malignancy risk and cardiovascular complications.

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Dosimetric measurement of testicular dose for colorectal cancer using optically-stimulated luminescent dosimeters in radiotherapy

Cited by 14 publications

References 20 publications

Untitled

Untitled

Application of gold nanomaterials for ionizing radiation detection

Dosimetric Comparison of Intensity-Modulated Radiotherapy, Volumetric Modulated Arc Therapy and Hybrid Three-Dimensional Conformal Radiotherapy/Intensity-Modulated Radiotherapy Techniques for Right Breast Cancer

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