scholarly journals Comparison of four 3D conformal treatment techniques to optimise radiotherapy treatment for anal cancer

2014 ◽  
Vol 61 (4) ◽  
pp. 253-260
Author(s):  
Alison Cray ◽  
Cathy Markham ◽  
Michelle Ryan ◽  
Alan Herschtal ◽  
Samuel Y. Ngan ◽  
...  
Keyword(s):  
Anal Cancer ◽  
Treatment Techniques ◽  
Conformal Treatment ◽  
Radiotherapy Treatment

scholarly journals Incidental Dose to Pelvic Nodal Regions in Prostate-Only Radiotherapy

2016 ◽  
Vol 16 (2) ◽  
pp. 211-217 ◽  
Author(s):  
Vedang Murthy ◽  
Shirley Lewis ◽  
Mayur Sawant ◽  
Siji N. Paul ◽  
Umesh Mahantshetty ◽  
...  
Keyword(s):  
Intensity Modulated Radiotherapy ◽  
Conventional Radiotherapy ◽  
Prostate Radiotherapy ◽  
3 Dimensional ◽  
Intensity Modulated ◽  
Treatment Techniques ◽  
Dose Volume ◽  
Internal Iliac ◽  
The Mean ◽  
Conformal Treatment

Objectives: Pelvic lymph nodal regions receive an incidental dose from conformal treatment of the prostate. This study was conducted to investigate the doses received by the different pelvic nodal regions with varying techniques used for prostate radiotherapy. Methods and Materials: Twenty patients of high-risk node-negative prostate cancer treated with intensity-modulated radiotherapy to the prostate alone were studied. Replanning was done for intensity-modulated radiotherapy, 3-dimensional conformal treatment, and 2-dimensional conventional radiotherapy with additional delineation of the pelvic nodal regions, namely, common iliac (upper and lower), presacral, internal iliac, obturator, and external iliac. Dose–volume parameters such as Dmean, D100%, D66%, D33%, V40, and V50 to each of the nodal regions were estimated for all patients. Results: The obturator nodes received the highest dose among all nodal regions. The mean dose received by obturator nodal region was 44, 29, and 22 Gy from 2-dimensional conventional radiotherapy, 3-dimensional conformal treatment, and intensity-modulated radiotherapy, respectively. The mean dose was significantly higher when compared between 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment ( P < .001), 2-dimensional conventional radiotherapy and intensity-modulated radiotherapy ( P < .001), and 3-dimensional conformal treatment and intensity-modulated radiotherapy ( P < .001). The D33% of the obturator region was 64, 39, and 37 Gy from 2-dimensional conventional radiotherapy, 3-dimensional conformal treatment, and intensity-modulated radiotherapy, respectively. The dose received by all other pelvic nodal regions was low and not clinically relevant. Conclusion: The incidental dose received by obturator regions is significant especially with 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment techniques as used in the trials studying elective pelvic nodal irradiation. However, with intensity-modulated radiotherapy, this dose is lower, making elective pelvic irradiation more relevant. Advances in Knowledge: This study highlights that incidental dose received by obturator regions is significant especially with 2-dimensional conventional radiotherapy and 3-dimensional conformal treatment techniques.

143 A review of changes in lung radiotherapy treatment techniques during the CONVERT trial

Lung Cancer ◽  
2014 ◽  
Vol 83 ◽  
pp. S52
Author(s):  
N. Groom ◽  
E. Wilson ◽  
C. Faivre-Finn ◽  
E. Lyn ◽  
A. Price ◽  
...  
Keyword(s):  
Treatment Techniques ◽  
Lung Radiotherapy ◽  
Radiotherapy Treatment

Impact of beam quality on megavoltage radiotherapy treatment techniques utilizing gold nanoparticles for dose enhancement

2013 ◽  
Vol 58 (3) ◽  
pp. 451-464 ◽  
Author(s):  
Panagiotis Tsiamas ◽  
Bo Liu ◽  
Fulya Cifter ◽  
Wilfred F Ngwa ◽  
Ross I Berbeco ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Beam Quality ◽  
Dose Enhancement ◽  
Treatment Techniques ◽  
Radiotherapy Treatment

scholarly journals Temporal improvements in loco-regional failure and survival in patients with anal cancer treated with chemo-radiotherapy: treatment cohort study (1990–2014)

2020 ◽  
Vol 122 (6) ◽  
pp. 749-758 ◽  
Author(s):  
Hema Sekhar ◽  
Lee Malcomson ◽  
Rohit Kochhar ◽  
Matthew Sperrin ◽  
Nooreen Alam ◽  
...  
Keyword(s):  
Cohort Study ◽  
Anal Cancer ◽  
Regional Failure ◽  
Radiotherapy Treatment

Conformal Anal Cancer Pelvis Radiotherapy Treatment with VMAT

2008 ◽  
Vol 72 (1) ◽  
pp. S542-S543 ◽  
Author(s):  
F. Stieler ◽  
D. Wolff ◽  
F. Lohr ◽  
V. Steil ◽  
Y. Abo-Madyan ◽  
...  
Keyword(s):  
Anal Cancer ◽  
Radiotherapy Treatment
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