Determination of geometric accuracy of radiotherapy fields by port film and DRR using Matlab graphical user interface.
The purpose of this study is to determine and verify the exact location of radiation therapy fields by using port-film and digital reconstruction radiograph (DRR) as a low-cost tool. Initially, an appropriate algorithm was written for the application of port film in the megavoltage beam irradiation....
| Publicado en: | Medical & Biological Engineering & Computing Vol. 57; no. 1; pp. 259 - 270 |
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| Autores principales: | , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Jan2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=133800678&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 133800678 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Jan2019 vid: 57 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 133800678 133800678 NLM30094755 133800678 10.1007/s11517-018-1852-x NLM30094755 133800678 ppf: 259 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Determination of geometric accuracy of radiotherapy fields by port film and DRR using Matlab graphical user interface. aug: au: Anjam, Seyyed Mostafa Banaee, Nooshin Rahmani, Hojjat Nedaie, Hassan Ali affil: Department of Medical Radiation Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran sug: subj: Dosimetry Radiotherapy User-Computer Interface Reproducibility of Results Radiographic Image Interpretation, Computer-Assisted Algorithms Human ab: The purpose of this study is to determine and verify the exact location of radiation therapy fields by using port-film and digital reconstruction radiograph (DRR) as a low-cost tool. Initially, an appropriate algorithm was written for the application of port film in the megavoltage beam irradiation. Detectable contrast was created for the image and then by using appropriate markers and developed written program by MATLAB as DRrPortRegistartion. Semi-automatic and automatic registration between port-film and DRR images were performed for pelvic and chest phantoms. Then, results were compared with electronic portal imaging device (EPID) images in similar conditions. By using this software, DRR and port film as treatment verification tools, the precision of treatment verification and the accuracy of radiation therapy fields were achieved in the extent of the millimeter. Validation results with EPID demonstrated that the mean absolute average error in angle is equal to 0.59 degrees, 1.70 mm in the X-direction, and 2.42 mm in the Y-direction. The results of this study illustrated that using this software and suitable low-cost hardware in the machines without EPID can increase the precision of treatment verification to the millimeter and it can be introduced as a suitable alternative for EPID in centers for increasing treatment accuracy. Graphical abstract ᅟ. pubtype: Academic Journal doctype: diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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