scholarly journals Patient setup variations in computed tomography-based treatment planning for left-sided breast cancer using electronic portal images

2020 ◽  
Vol 22 (1) ◽  
pp. 30
Author(s):  
Sachin Taneja ◽  
Deboleena Mukherjee ◽  
Kirti Tyagi
Keyword(s):  
Breast Cancer ◽  
Computed Tomography ◽  
Treatment Planning ◽  
Patient Setup ◽  
Portal Images

scholarly journals Dosimetric and isocentric variations due to patient setup errors in CT-based treatment planning for breast cancer by electronic portal imaging

2020 ◽  
Vol 76 (1) ◽  
pp. 51-57
Author(s):  
Hari Mukundan ◽  
Deboleena Mukherjee ◽  
Kirti Tyagi ◽  
Sachin Taneja ◽  
Subhash Ranjan ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Treatment Planning ◽  
Setup Errors ◽  
Portal Imaging ◽  
Electronic Portal Imaging ◽  
Patient Setup

Isocenter Verification in Radiotherapy Clinical Practice Using Virtual Simulation

2016 ◽  
pp. 211-230
Author(s):  
George K. Matsopoulos ◽  
Pantelis A. Asvestas ◽  
Vasiliki Markaki ◽  
Kalliopi Platoni ◽  
Vasilios Kouloulias
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Clinical Practice ◽  
Treatment Planning ◽  
Virtual Simulation ◽  
Ct Scans ◽  
Setup Error ◽  
Treatment Delivery ◽  
Abdominal Tumors ◽  
Patient Setup

This chapter presents an overview of the procedures that are used for the verification of the patient position during radiotherapy. Furthermore, a method for the verification of the radiotherapy isocenter prior to treatment delivery is proposed. The method is based on the alignment of two Computed Tomography (CT) scans: a scan, which is acquired for treatment planning, and an additional verification scan, which is acquired prior to the treatment delivery. The proposed method was applied to CT scans, acquired from 20 patients with abdominal tumors and 20 patients with breast/lung cancer. The results of the proposed method were compared with the ones obtained using conventional methods, indicating that the estimated isocenter displacement can be translated into patient setup error inside the treatment room.

Isocenter Verification in Radiotherapy Clinical Practice Using Virtual Simulation

2017 ◽  
pp. 1703-1724
Author(s):  
George K. Matsopoulos ◽  
Pantelis A. Asvestas ◽  
Vasiliki Markaki ◽  
Kalliopi Platoni ◽  
Vasilios Kouloulias
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Clinical Practice ◽  
Treatment Planning ◽  
Virtual Simulation ◽  
Ct Scans ◽  
Setup Error ◽  
Treatment Delivery ◽  
Abdominal Tumors ◽  
Patient Setup

This chapter presents an overview of the procedures that are used for the verification of the patient position during radiotherapy. Furthermore, a method for the verification of the radiotherapy isocenter prior to treatment delivery is proposed. The method is based on the alignment of two Computed Tomography (CT) scans: a scan, which is acquired for treatment planning, and an additional verification scan, which is acquired prior to the treatment delivery. The proposed method was applied to CT scans, acquired from 20 patients with abdominal tumors and 20 patients with breast/lung cancer. The results of the proposed method were compared with the ones obtained using conventional methods, indicating that the estimated isocenter displacement can be translated into patient setup error inside the treatment room.

scholarly journals EVALUASI VERIFIKASI LAPANGAN PENYINARAN PADA KANKER PAYUDARA MENGGUNAKAN TEKNIK INTENSITY MODULATED RADIOTHERAPY DENGAN BERBAGAI FRAKSI

2017 ◽  
Vol 22 (1) ◽  
pp. 8
Author(s):  
Nursama Heru ◽  
Abraham Panjaitan
Keyword(s):  
Breast Cancer ◽  
Computed Tomography ◽  
Treatment Planning ◽  
Radiation Field ◽  
Cone Beam Computed Tomography ◽  
Radiation Treatment ◽  
Intensity Modulated Radiotherapy ◽  
Cone Beam ◽  
Intensity Modulated ◽  
Field Verification

Penelitian ini bertujuan untuk mengevaluasi verifikasi lapangan penyinaran pada kanker payudara menggunakan teknik Intensity Modulated Radiotherapy Technique (IMRT) dengan berbagai fraksi. Dalam pelaksanaan IMRT perlu dilakukan proses verifikasi 3 Dimensi untuk memastikan ketepatan koordinatiso center yang disebabkan oleh pergeseran. Untuk menganalisis nilai pergeseran antara Treatment Planning dan Radiation Treatment. Penelitian ini dilakukan di Departemen Radioterapi Rumah Sakit Siloam TB Simatupang pada bulan Februari – Juni tahun 2017. Desain penelitian ini bersifat kuantitatif deskriptif dengan menggunakan 15 sample pasien kanker payudara, Data yg diamati berupa nilai couch koordinat X,Y,Z hasil verifikasi Cone Beam Computed Tomography (CBCT) yang dianalisis menggunakan Uji statistic Uji Non Parametrik Wilcoxon. Instrumen penelitian yang digunakan adalah Pesawat LINAC Varian Trilogy dan alat verifikasi On Board Imager  CBCT. Hasil penelitian pada couch longitudinal (koordinat Y) terdapat perbedaan yang signifikan antara Treatment Planning dengan Radiation Treatment. Sedangkan pada couch lateral (koordinat X) dan Vertikal (koordinat Z) tidak terdapat perbedaan yang signifikan. Dari hasil penelitian nilai rata-rata pergeseran setelah dilakukan verifikasi masih melebihi standar toleransi yaitu pada koordinat Y fraksi dengan nilai 0,2cm.(EVALUATION OF RADIATION FIELD VERIFICATION IN BREAST CANCER USING INTENSITY MODULATED RADIOTHERAPY TECHNIQUE ON DIFFERENT FRACTIONS)This study was aimed at evaluating radiation field verification in breast cancer using Intensity Modulated Radiotherapy Technique (IMRT) on different fractions. The implementation of IMRT required 3 Dimensional verification processes to ensure the accuracy of the coordinates of the center caused by the shift. To analyze the value of the shift between Treatment Planning and Radiation Treatment, this research was conducted at the Department of Radiotherapy of Siloam TB Simatupang Hospital in February - June of 2017. The design of this study was quantitative descriptive by using 15 samples of breast cancer patients. The data were observed in the form of couch coordinate values X, Y, Z. The verification results using Cone Beam Computed Tomography (CBCT) then were analyzed using statistical test of Non Parametric Wilcoxon Test. The research instruments used were LINAC Varian Trilogy and verification tools On Board Imager CBCT. The result shows that longitudinal couch (coordinate Y) indicated significant differences from the Treatment Planning using Radiation Treatment. While on the lateral couch (X coordinates) and Vertical (coordinate Z) has no significant difference. From the study result, the average value of the verification has exceeded the tolerance standard at coordinate Y with value 0.2cm.

Isocenter Verification in Radiotherapy Clinical Practice Using Virtual Simulation

Oncology ◽  
2017 ◽  
pp. 689-708
Author(s):  
George K. Matsopoulos ◽  
Pantelis A. Asvestas ◽  
Vasiliki Markaki ◽  
Kalliopi Platoni ◽  
Vasilios Kouloulias
Keyword(s):  
Computed Tomography ◽  
Lung Cancer ◽  
Clinical Practice ◽  
Treatment Planning ◽  
Virtual Simulation ◽  
Ct Scans ◽  
Setup Error ◽  
Treatment Delivery ◽  
Abdominal Tumors ◽  
Patient Setup

This chapter presents an overview of the procedures that are used for the verification of the patient position during radiotherapy. Furthermore, a method for the verification of the radiotherapy isocenter prior to treatment delivery is proposed. The method is based on the alignment of two Computed Tomography (CT) scans: a scan, which is acquired for treatment planning, and an additional verification scan, which is acquired prior to the treatment delivery. The proposed method was applied to CT scans, acquired from 20 patients with abdominal tumors and 20 patients with breast/lung cancer. The results of the proposed method were compared with the ones obtained using conventional methods, indicating that the estimated isocenter displacement can be translated into patient setup error inside the treatment room.

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