ISO-DOSE MAP GENERATION AND DOSE-AREA PRODUCT CALCULATION THROUGH DIGITAL IMAGE PROCESSING OF SCANNED IRRADIATED RADIOCHROMIC FILMS.
Iso-dose maps creation and kerma-area products calculation are important procedures in radiotherapy and medical imaging. In this work, a method is presented to obtain iso-dose maps through digital processing of the images obtained from radiochromic films, which are employed to estimate the dose abso...
| Publicado en: | Revista Cubana de Física Vol. 37; no. 2; pp. 101 - 108 |
|---|---|
| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
Universidad de La Habana
dic2020
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=lth&AN=148488825&site=ehost-live header: @attributes: shortDbName: lth uiTerm: 148488825 longDbName: MedicLatina uiTag: AN controlInfo: bkinfo: jinfo: jid: 02539268 UEW jtl: Revista Cubana de Física issn: 02539268 maglogo: N pubinfo: dt: dic2020 vid: 37 iid: 2 pid: 21208 pub: Universidad de La Habana artinfo: ui: 148488825 ppf: 101 ppct: 7 formats: fmt: @attributes: type: P size: 1002KB tig: atl: ISO-DOSE MAP GENERATION AND DOSE-AREA PRODUCT CALCULATION THROUGH DIGITAL IMAGE PROCESSING OF SCANNED IRRADIATED RADIOCHROMIC FILMS. aug: au: RUIZ-GONZALEZ, Y. RODRÍGUEZ-LEDESMA, S. VIERA, J. E. PAZ GINORI, J. V. LORENZO affil: Centro de Investigaciones de la Informática, Universidad Central "Marta Abreu" de Las Villas, Santa Clara, Cuba Centro de Ingeniería Clínica y Electromedicina, Santa Clara, Cuba Zimmer Biomet, Toronto, Canada su: Digital image processing Image-guided radiation therapy Medical digital radiography Isodose curves Image segmentation Diagnostic imaging Radiotherapy Systems software sug: subj: Digital image processing Image-guided radiation therapy Medical digital radiography Isodose curves Image segmentation Diagnostic imaging Radiotherapy Systems software ab: Iso-dose maps creation and kerma-area products calculation are important procedures in radiotherapy and medical imaging. In this work, a method is presented to obtain iso-dose maps through digital processing of the images obtained from radiochromic films, which are employed to estimate the dose absorbed by the patient. The kerma-area product in selected regions of interest (ROIs) in the iso-dose map was then evaluated. The images were obtained by scanning the irradiated films using a commercial flatbed scanner. The iso-dose areas were extracted by means of an image segmentation algorithm, while calibration for a particular film to obtain a sensitometric curve relating dose to film darkening, was also made. A software interface allowed introducing the scanned image for the estimation of kerma-area products by defining the ROI interactively. The methods developed in this work allowed to implement a software application to obtain the iso-dose maps and kerma-area product in selected ROIs. La creacioí n de mapas de isodosis y el caí lculo subsiguiente del producto kerma-aí rea son procedimientos importantes en radioterapia e imagenología medica. En este trabajo se presenta un meí todo para obtener mapas de isodosis a traveí s del procesamiento digital de imágenes de las películas radiocromicas utilizadas para estimar las dosis absorbidas por los pacientes en estos procedimientos. Tambieín se evaluía el producto kerma-aírea en regiones de intereís (ROI) seleccionadas en los mapas de isodosis. Las imagenes se obtuvieron escaneando las películas irradiadas utilizando un escaíner plano comercial. Las aíreas de isodosis se extrajeron mediante un algoritmo de segmentacioín, ademaís se realizó la calibración utilizando una película en particular, para obtener una curva sensitomeítrica que relaciona la dosis con el oscurecimiento de la película. Una interfaz de software unifica los meítodos desarrollados y permite procesar imaígenes escaneadas para la estimacion de productos dosis-area definiendo las ROI de forma interactiva. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Revista Cubana de Física is the property of Universidad de La Habana and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. item: Revista Cubana de Física holder: Universidad de La Habana dt: @attributes: year: 2020 holdings: @attributes: islocal: N |
|---|