Evaluation of superficial dosimetry between treatment planning system and measurement for several breast cancer treatment techniques

2012 ◽  
Vol 40 (1) ◽  
pp. 011714 ◽  
Author(s):  
Yuichi Akino ◽  
Indra J. Das ◽  
Gregory K. Bartlett ◽  
Hualin Zhang ◽  
Elizabeth Thompson ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Treatment ◽  
Treatment Planning ◽  
Breast Cancer Treatment ◽  
Planning System ◽  
Treatment Planning System ◽  
Treatment Techniques

Quality assurance of volumetric-modulated arc therapy head and neck cancer treatment using PRESAGE® dosimeter

2018 ◽  
Vol 17 (4) ◽  
pp. 441-446 ◽  
Author(s):  
Jalil ur Rehman ◽  
Muhammad Isa ◽  
Nisar Ahmad ◽  
H. M. Noor ul Huda Khan Asghar ◽  
Zaheer A. Gilani ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Cancer Treatment ◽  
Head And Neck ◽  
Treatment Planning ◽  
Volumetric Modulated Arc Therapy ◽  
Planning System ◽  
Treatment Planning System ◽  
Ct Scans ◽  
Arc Therapy ◽  
Calculated Dose

AbstractBackgroundAccurate three-dimensional dosimetry is essential in modern radiotherapy techniques such as volumetric-modulated arc therapy (VMAT) and intensity-modulated radiation therapy (IMRT). In this research work, the PRESAGE® dosimeter was used as quality assurance (QA) tool for VMAT planning for head and neck (H&N) cancer.Material and methodComputer tomography (CT) scans of an Image Radiation Oncology Core (IROC) H&N anthropomorphic phantom with both IROC standard insert and PRESAGE® insert were acquired separately. Both CT scans were imported into the Pinnacle (9.4 version) TPS for treatment planning, where the structures [planning target volume (PTV), organs at risk) and thermoluminescent detectors (TLDs) were manually contoured and used to optimise a VMAT plan. Treatment planning was done using VMAT (dual arc: 182°–178°, 178°–182°). Beam profile comparisons and gamma analysis were used to quantify agreement with film, PRESAGE® measurement and treatment planning system (TPS) calculated dose distribution.ResultsThe average ratio of TLD measured to calculated doses at the four PTV locations in the H&N phantom were between 0·95 to 0·99 for all three VMAT deliveries. Dose profiles were taken along the left–right, the anterior–posterior and superior–inferior axes, and good agreement was found between the PRESAGE® and Pinnacle profile. The mean value of gamma results for three VMAT deliveries in axial and sagittal planes were found to be 94·24 and 93·16% when compared with film and Pinnacle, respectively. The average values comparing the PRESAGE® results and dose values calculated on Pinnacle were observed to be 95·29 and 94·38% in the said planes, respectively, using a 5%/3 mm gamma criteria.ConclusionThe PRESAGE® dose measurements and calculated dose of pinnacle show reasonable agreement in both axial and sagittal planes for complex dual arc VMAT treatment plans. In general, the PRESAGE® dosimeter is found to be a feasible QA tool of VMAT plan for H&N cancer treatment.

Investigation of Cone-beam CT for Breast Cancer Treatment Planning

2005 ◽  
Vol 63 ◽  
pp. S553 ◽  
Author(s):  
G. Kim ◽  
K. Horst ◽  
P. Maxim ◽  
G. Luxton ◽  
L. Xing ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Treatment ◽  
Treatment Planning ◽  
Cone Beam Ct ◽  
Breast Cancer Treatment ◽  
Cone Beam

scholarly journals Evaluation of electron dose calculations accuracy of a treatment planning system in radiotherapy of breast cancer with photon-electron technique

2018 ◽  
Vol 14 (7) ◽  
pp. 1110 ◽  
Author(s):  
Ashraf Farkhari ◽  
MohammadTaghi Bahreyni Toossi ◽  
Shokouhozaman Soleymanifard ◽  
Bagher Farhood ◽  
Courtney Knaup
Keyword(s):  
Breast Cancer ◽  
Treatment Planning ◽  
Planning System ◽  
Treatment Planning System ◽  
Dose Calculations ◽  
Electron Dose

Registration of Prone and Supine Breast MRI for Breast Cancer Treatment Planning

2017 ◽  
pp. 123-134 ◽  
Author(s):  
Thiranja P. Babarenda Gamage ◽  
Habib Y. Baluwala ◽  
Martyn P. Nash ◽  
Poul M. F. Nielsen
Keyword(s):  
Breast Cancer ◽  
Cancer Treatment ◽  
Treatment Planning ◽  
Breast Mri ◽  
Breast Cancer Treatment

scholarly journals Correlation between Isotherms and Isodoses in Breast Cancer Radiotherapy—First Study

2021 ◽  
Vol 18 (2) ◽  
pp. 619
Author(s):  
Dominika Plaza ◽  
Agnieszka Baic ◽  
Barbara Lange ◽  
Agata Stanek ◽  
Krzysztof Ślosarek ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Treatment Planning ◽  
Treatment Plan ◽  
The Body ◽  
Planning System ◽  
Treatment Planning System ◽  
Breast Cancer Radiotherapy ◽  
The Mean ◽  
Radiotherapy Treatment ◽  
Tumor Area

The study is focused on correlation of isotherms derived from thermal images with an isodoses describing treatment plan for patients with breast cancer treated by radiotherapy. The irradiated area covered the part of the body after mastectomy. The study included patients diagnosed with breast cancer who were qualified for radiotherapy treatment. All patients were monitored during each treatment week during the entire radiotherapy process. The measurements were made under strictly defined conditions. In the treatment planning system (TPS), the specific plan was created for each patient. Spatial dose distribution in the patient’s body was obtained and presented by the isodoses (lines connecting points with the same dose values). The following areas from the treatment planning system were plotted on the thermograms: target (tumor area) and isodose: 45 Gy, 40 Gy, 30 Gy, 20 Gy and 10 Gy. The obtained results indicated a high correlation between magnitude of the dose represented as the isodose and the temperature of the treated skin. Moreover, preliminary analysis showed a repeatable increase of the mean temperature in the irradiated area during the treatment.

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