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.

scholarly journals Applications of cone beam computed tomography in endodontics

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Ateksha Bhardwaj Khanna
Keyword(s):  
Computed Tomography ◽  
Treatment Planning ◽  
Cone Beam Computed Tomography ◽  
Oral Surgery ◽  
Three Dimensional ◽  
Conventional Radiography ◽  
Cone Beam ◽  
Oral Radiology ◽  
Manual Search ◽  
First Choice

Abstract Background Endodontic disease can adversely affect the quality of life and therefore early diagnosis and consequent timely treatment is of paramount importance for the Endodontist. Radiology is an essential component in treatment planning, disease monitoring and assessment of treatment outcome. Periapical radiographs and panoramic radiography are frequently utilised but they provide only two-dimensional representation of three-dimensional structures. The advent of cone beam computed tomography (CBCT) offers three-dimensional accuracy of the hard tissue images with a reasonable cost and this has revolutionised imaging of the dentomaxillofacial structures. This imaging system has been seen to overcome some limitations of conventional radiography, as brought out in this review. The improvement in the accuracy is, however, accompanied at the cost of increased radiation exposure to the patient. Nevertheless, smaller areas of exposure are normally appropriate for endodontic imaging, and adjustment in the exposure parameters can further moderate the effective dose (Loubele et al. 37(6):309-18, 2008). Aims and objectives The aim of this review is to present the pertinent literature on the various applications of cone beam computed tomography in the field of endodontics. Methods Literature was electronically searched on the following sources; Medline and Keats Library. Further, a manual search was performed on the following journals: International Endodontic Journal, Journal of Endodontics, Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, Endodontology, Journal of Dental Research, European Journal of Oral Sciences & Odontology and Dentomaxillofacial Radiology. A preliminary search was performed to gain an idea of the available literature using keywords ‘Cone Beam Computed Tomography’ to view the volume of the literature evident and identify questions to be addressed in this review. The initial search showed 243 potential articles. After scrutinising the titles and abstracts of the retrieved articles, 70 relevant studies were reviewed in full text. Furthermore, ‘published guidelines on the use of CBCT’ were also searched so as to include the results as an additional source material. All the articles eligible to be included in the review were in the English language and ranged from the year 1960 to the present. Also all the studies reviewed were based on the various uses of cone beam computed tomography in the field of endodontics. The keywords used to search were ‘Cone Beam Computed Tomography (CBCT)’, ‘Conventional radiography’, ‘Applications of CBCT in endodontics’, ‘CBCT and tooth morphology’, ‘CBCT and apical periodontitis’, ‘CBCT and vertical root fractures’, ‘CBCT and resorption’, ‘CBCT and pre-surgical assessment’, ‘CBCT and dento-alveolar trauma’ and ‘CBCT and endodontic outcome’. Results Every case is unique and CBCT should be considered only after studying each case individually. CBCT imaging needs to be adopted or used where information from conventional imaging systems is either inadequate for the management of endodontic problems or inconclusive. Having said that, it is safe to state that CBCT imaging has the potential to become the first choice for endodontic treatment planning and outcome assessment, especially when new scanners with lower radiation doses and enhanced resolution would be available.

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