Evolution of brachytherapy applicators for the treatment of cervical cancer

Mourya, Ankur; Aggarwal, Lalit; Choudhary, Sunil

doi:10.4103/jmp.jmp_62_21

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Cited by 8 publications

References 90 publications

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Commissioning considerations for the Bravos high-dose-rate afterloader: Towards improving treatment delivery accuracy

Cohen,

He,

Trager

et al. 2024

Brachytherapy

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Commissioning considerations for the Bravos high-dose-rate afterloader: Towards improving treatment delivery accuracy

Cohen,

He,

Trager

et al. 2024

Brachytherapy

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Three-dimensional trans-rectal and trans-abdominal ultrasound image fusion for the guidance of gynecologic brachytherapy procedures: a proof of concept study

Trumpour,

du Toit,

van Gaalen

et al. 2024

Sci Rep

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Commissioning of MRI-guided gynaecological brachytherapy using an MR-linac

Rojas-López,

Cabrera-Santiago,

Adragna

et al. 2024

Biomed. Phys. Eng. Express

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Purpose: To evaluate the feasibility of use of an 1.5 T magnetic resonance (MR)-linear accelerator MR-linac for imaging in gynaecologic high-dose-rate (HDR) brachytherapy.Method: Commissioning measurements for MR images quality control, geometric distortion, dwell position accuracy, applicator reconstruction and end-to-end test for a tandem-and-ring applicator were performed following the recommendations of American Brachytherapy Society, International Commission on Radiation Units and Measurements and Report of the Brachytherapy Working Group of the Spanish Society of Medical Physics. The values for MR-based IGABT were compared to the corresponding values with computed tomography (CT).Results: Measured distorsions for the MR images were less than 0.50 mm compared to the CT images. The differences between 3D displacements for all dwell positions were 0.66 mm and 0.62 mm for the tandem and ring, respectively. The maximum difference is 0.64 mm for the distances from the applicator tip obtained using the films. The CT and MR dose differences for the right and left ‘A’ points were 0.9% and -0.7%, respectively. Similar results were observed in terms of dose distribution for CT and MR. The gamma passing rate was 99.3% and 99.5%, respectively.Conclusion: The use of MR images from an MR-linac used in a radiotherapy service for gynaecological brachytherapy was proved to be feasible, safe and precise as the geometrical differences were less than 1 mm, and the dosimetric differences were less than 1% when comparing to the use of CT images for the same purpose.

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Evolution of brachytherapy applicators for the treatment of cervical cancer

Cited by 8 publications

References 90 publications

Commissioning considerations for the Bravos high-dose-rate afterloader: Towards improving treatment delivery accuracy

Commissioning considerations for the Bravos high-dose-rate afterloader: Towards improving treatment delivery accuracy

Three-dimensional trans-rectal and trans-abdominal ultrasound image fusion for the guidance of gynecologic brachytherapy procedures: a proof of concept study

Commissioning of MRI-guided gynaecological brachytherapy using an MR-linac

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