Ultrasound-Fluoroscopy Registration for Intraoperative Dynamic Dosimetry in Prostate Brachytherapy

2013 ◽  
pp. 587-621
Author(s):  
Ehsan Dehghan ◽  
Nathanael Kuo ◽  
Anton Deguet ◽  
Yi Le ◽  
Elwood Armour ◽  
...  
Keyword(s):  
Prostate Brachytherapy

561: Dosimetric Outcomes in Prostate Brachytherapy: Is Downsizing the Prostate with Androgen Deprivation Necessary

2007 ◽  
Vol 177 (4S) ◽  
pp. 187-187
Author(s):  
Erin P. Gibbons ◽  
Ryan P. Smith ◽  
Sushil Beriwal ◽  
Komanduri Krishna ◽  
Ronald M. Benoit
Keyword(s):  
Androgen Deprivation ◽  
Prostate Brachytherapy

1763: Multicenter Analysis of Outcomes in Patients Treated with Permanent Prostate Brachytherapy: Effect of PSA Failure Definition and Dose on Biochemical Defined Relapse

2007 ◽  
Vol 177 (4S) ◽  
pp. 586-586
Author(s):  
Nelson N. Stone ◽  
Louis Potters ◽  
Brian J. Davis ◽  
Jay P. Ciezki ◽  
Michael J. Zelefsky ◽  
...  
Keyword(s):  
Prostate Brachytherapy ◽  
Psa Failure ◽  
Multicenter Analysis

Automated Quality Assurance of Permanent Seed Implant Prostate Brachytherapy Air Kerma Strength Using Vendor Autoradiographs

Brachytherapy ◽  
2018 ◽  
Vol 17 (4) ◽  
pp. S135-S136
Author(s):  
Marcus Sonier ◽  
Cameron Appeldoorn ◽  
Ramani Ramaseshan
Keyword(s):  
Quality Assurance ◽  
Prostate Brachytherapy ◽  
Air Kerma

Influence of Hydrogel Spacer Placement with Prostate Brachytherapy on Rectal and Urinary Toxicity

2021 ◽  
Author(s):  
Achiraya Teyateeti ◽  
Craig Grossman ◽  
Marisa A. Kollmeier ◽  
Megan Fiasconaro ◽  
Margaret Hopkins ◽  
...  
Keyword(s):  
Prostate Brachytherapy

scholarly journals Optical fibre based real-time measurements during an LDR prostate brachytherapy implant simulation: using a 3D printed anthropomorphic phantom

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
P. Woulfe ◽  
F. J. Sullivan ◽  
L. Byrne ◽  
A. J. Doyle ◽  
W. Kam ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Planning System ◽  
Treatment Planning System ◽  
Prostate Brachytherapy ◽  
Anthropomorphic Phantom ◽  
Optical Fibre Sensor ◽  
Ldr Brachytherapy ◽  
3D Printed ◽  
Average Activity ◽  
Iodine 125

AbstractAn optical fibre sensor based on radioluminescence, using the scintillation material terbium doped gadolinium oxysulphide (Gd2O2S:Tb) is evaluated, using a 3D printed anthropomorphic phantom for applications in low dose-rate (LDR) prostate brachytherapy. The scintillation material is embedded in a 700 µm diameter cavity within a 1 mm plastic optical fibre that is fixed within a brachytherapy needle. The high spatial resolution dosimeter is used to measure the dose contribution from Iodine-125 (I-125) seeds. Initially, the effects of sterilisation on the sensors (1) repeatability, (2) response as a function of angle, and (3) response as a function of distance, are evaluated in a custom polymethyl methacrylate phantom. Results obtained in this study demonstrate that the output response of the sensor, pre- and post-sterilisation are within the acceptable measurement uncertainty ranging from a maximum standard deviation of 4.7% pre and 5.5% post respectively, indicating that the low temperature sterilisation process does not damage the sensor or reduce performance. Subsequently, an LDR brachytherapy plan reconstructed using the VariSeed treatment planning system, in an anthropomorphic 3D printed training phantom, was used to assess the suitability of the sensor for applications in LDR brachytherapy. This phantom was printed based on patient anatomy, with the volume and dimensions of the prostate designed to represent that of the patient. I-125 brachytherapy seeds, with an average activity of 0.410 mCi, were implanted into the prostate phantom under trans-rectal ultrasound guidance; following the same techniques as employed in clinical practice by an experienced radiation oncologist. This work has demonstrated that this sensor is capable of accurately identifying when radioactive I-125 sources are introduced into the prostate via a brachytherapy needle.

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