ABSTRACT
PURPOSE
To design the different Polytetrafluoroethylene (PTFE) based flexible implant tubes
using an in-house developed device and to evaluate them for High dose rate (HDR) interstitial
brachytherapy using computer tomography images.
METHODS AND MATERIALS
PTFE hollow tube having a 2 mm (6 French) outer diameter (OD) and 1.4 mm inner diameter
(ID) was used to design in-house single and/or double leader flexible catheters for
interstitial brachytherapy implant. An in-house Plastic Wire Drawing Plate (PWDP)
machine was developed. Customization of PTFE hollow flexible implant tube (FIT) was
done through PWDP. Different percentages of BaSO4 (5%, 10%, & 15%) were added to Nylon 6 to make radiopaque button. Various quality
assurance tests were performed with the PTFE tubes implanted in the brinjal (phantom)
before using them on the patients. That is, coupling of brachytherapy machine transfer
tube with flexible PTFE Tubes, CT scan artifacts, tube kinks, breast template, and
free-hand compatibility.
RESULTS
With the help of the PWDP machine, plastic wires of different lengths were made for
single leader and double leader tubes. The different plastic leader ends of 1 cm to
50 cm lengths having 1 mm diameter were created. The radiopaque button of Nylon 6
in circular shape having 1 cm diameter and 0.5 cm thick was created. Developed radiopaque
buttons were visible on CT scan images as well as on radiograph images.
CONCLUSIONS
PTFE tubes of the desired length can be made depending upon the size of the brachytherapy
implant and are inexpensive than commercially available flexible implant tubes.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to BrachytherapyAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- ESTRO-ACROP guideline: interstitial multi-catheter breast brachytherapy as Accelerated Partial Breast Irradiation alone or as boost – GEC-ESTRO Breast Cancer Working Group practical recommendations.Radiother Oncol. 2018; 128: 411-420https://doi.org/10.1016/j.radonc.2018.04.009
- GEC-ESTRO ACROP recommendations in skin brachytherapy.Radiother Oncol. 2018; 126: 377-385https://doi.org/10.1016/j.radonc.2018.01.013
- GEC-ESTRO ACROP recommendations for head and neck brachytherapy in squamous cell carcinomas: 1st update – Improvement by cross sectional imaging based treatment planning and stepping source technology.Radiother Oncol. 2017; 122: 248-254https://doi.org/10.1016/j.radonc.2016.10.008
- Multi-catheter interstitial brachytherapy for partial breast irradiation: an audit of implant quality based on dosimetric evaluation comparing intra-operative versus post-operative placement.J Contemp Brachytherapy. 2016; 8: 116-121https://doi.org/10.5114/jcb.2016.59195
- Aspects of dosimetry and clinical practice of skin brachytherapy: the American Brachytherapy Society working group report.Brachytherapy. 2015; 14: 840-858https://doi.org/10.1016/j.brachy.2015.06.005
- Treatment of skin carcinomas of the face by high-dose-rate brachytherapy and custom-made surface molds.Int J Radiat Oncol Biol Phys. 2000; 47: 95-102https://doi.org/10.1016/S0360-3016(99)00547-7
- Results of accelerated partial breast irradiation in patients not suitable for external beam irradiation stratified by GEC-ESTRO, ASTRO, and ABS guidelines.Brachytherapy. 2021; 20: 315-325https://doi.org/10.1016/j.brachy.2020.10.005
- Dose perturbation due to catheter materials in high-dose-rate interstitial 192Ir brachytherapy.Brachytherapy. 2014; 13: 627-631https://doi.org/10.1016/j.brachy.2014.05.010
- Technique modification for radioactive implants when plastic tubes are used in fibrosed head and neck areas.Int J Radiat Oncol. 1982; 8: 1799-1801https://doi.org/10.1016/0360-3016(82)90305-4
- New methods for implanting plastic tubes for 192iridium brachytherapy using steel needles.Clin Radiol. 1987; 38: 275-276https://doi.org/10.1016/S0009-9260(87)80066-1
- A critical review of the application of polymer of low concern and regulatory criteria to fluoropolymers.Integr Environ Assess Manag. 2018; 14: 316-334https://doi.org/10.1002/ieam.4035
- Mechanical properties study of polycarbonate and other thermoplastic polymers.J Phys Conf Ser. 2021; : 1973https://doi.org/10.1088/1742-6596/1973/1/012001
- Polytetrafluoroethylene (PTFE): a resin material for possible use in dental prostheses and devices.Dent Mater J. 2019; 38: 136-142https://doi.org/10.4012/dmj.2018-088
- New model for an epoxy-based brachytherapy source to be used in spinal cancer treatment.Appl Radiat Isot. 2021; 178109952https://doi.org/10.1016/j.apradiso.2021.109952
- Endovascular treatment of atherosclerotic lower limb lesions using a PTFE-collared stent-graft.J Endovasc Ther. 2000; 7: 221-226https://doi.org/10.1583/1545-1550(2000)007<0221:ETOALL>2.3.CO;2
- Gupta-Mathur tube tapering device for interstitial brachytherapy using 192Ir wire.J Med Phys. 1993; 19: 91-92
- A novel system for commissioning brachytherapy applicators: example of a ring applicator.Phys Med Biol. 2017; 62: 8360-8375https://doi.org/10.1088/1361-6560/aa8d0a
Dempsey C., Smith R., Nyathi T., et al. ACPSEM brachytherapy working group recommendations for quality assurance in brachytherapy. 2013:387–396. doi: 10.1007/s13246-013-0228-7.
- High-dose-rate interstitial brachytherapy in recurrent and previously irradiated head and neck cancers—Preliminary results.Brachytherapy. 2007; 6: 157-163https://doi.org/10.1016/j.brachy.2006.12.001
- Bioabsorbable bone fixation plates for X-ray imaging diagnosis by a radiopaque layer of barium sulfate and poly (lactic-co-glycolic acid).J Biomed Mater Res - Part B Appl Biomater. 2015; 103: 596-607https://doi.org/10.1002/jbm.b.33235
Article info
Publication history
Published online: September 07, 2022
Accepted:
July 27,
2022
Received in revised form:
July 26,
2022
Received:
May 24,
2022
Identification
Copyright
© 2022 American Brachytherapy Society. Published by Elsevier Inc. All rights reserved.
