Uncertainties determination in the commissioning and start-up of a 3D image guided radiotherapy system

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Uncertainties determination in the commissioning and start-up of a 3D image guided radiotherapy system
Authors:     Xavier Jordi Juan, Agustín Santos, Juan López, Juan Carlos Ruiz, Salvador Calzada. Medical Physics and Radiation Protection Department of Hosp. Provincial de Castellón, Avda. Dr. Clarà, 19 12002 Castelló de la Plana
Presenter:     Santos Serra Agustin

Keywords : 3d absolute allows bars castell cbct corrections couch ct differences dynamic elekta fig guided images important involved isocenters juan kv linac manufactured measured mm movements mv obtained oncology patient performed phantom planar platform possible preciseplan precision radiotherapy reconstruction rotation start-up system theoretical total tps translation treatment uncertainties values volumetric xvi

Click here to access this document

Copyright © ONCOZONE. All rights reserved


The potential of stereoscopic kV imaging for 6 DOF correction and respiratory gating

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     The potential of stereoscopic kV imaging for 6 DOF correction and respiratory gating
Authors:     K.Tournel, N.Linthout, D.Verellen RT Department, Oncology Center, Academic Hospital AZVUB, Brussels
Presenter:     Tournel Koen

Keywords : -2 -3 -4 -5 1mm 6dof azvub breathing cgy ci95 clinical correction cycle dh diaphragmic drr error estro25 fluence gated images intrafraction ir lesion level lr map markers measured mm monitoring motion movement moving ntcp patients phantom prostate results robotics sd setup static stereoscopic system systematic tcp theoretical treatment

Click here to access this document

Copyright © ONCOZONE. All rights reserved


The clinical potential of PET CT dose guidance for proton therapy

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     The clinical potential of PET CT dose guidance for proton therapy
Authors:     Thomas Bortfeld, Katia Parodi, Antje Knopf, Helen Shih, Harald Paganetti Massachusetts General Hospital Department of Radiation Oncology
Presenter:     Bortfeld Thomas

Keywords : al bath beam cases clinical ct dose dosimetry due et example filtering fraction guidance gy higher ijrobp implants impt imrt in-vivo inverse issues jan metallic mgh min mm outline overshooting particle patients pet phantom pituitary plan potential precision protons range reconstruction scan therapy treated treatment trofimov uncertainties verification volume

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Respiratory motion artefacts in PET imaging with CT attenuation correction

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Respiratory motion artefacts in PET imaging with CT attenuation correction
Authors:     J. Vale1, D. C. Costa2, G. Fonseca1, J. Patrina2, D. Faria2, F. Ponte1, J. Teixeira1 1 CRP – Clínica de Radioterapia do Porto, Porto, Portugal 2 HPP Medicina Molecular, S.A., Porto, Portugal
Presenter:     Vale Joana

Keywords : -15 -20 -25 -30 -40 -5 -60 altered analysis anatomic attenuation axis bone carina cases corrected ct ctv delineation detects deviation displacement exp expiration group insp inspiration liver lung manubrio metabolic movements nodes patient pet planning porto portugal radiotherapy results scan shallow significantly structures study suv target values volume

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Re-assessment of HNSCC tumor volume during radiotherapy with multi modality imaging : impact on the dose distribution

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Re-assessment of HNSCC tumor volume during radiotherapy with multi modality imaging : impact on the dose distribution
Authors:     Xavier Geets, Milan Tomsej, John A.Lee, Max Lonneux, Guy Cosnard, Emmanuel Coche, Vincent Grégoire Université Catholique de Louvain, St-Luc University Hospital, Brussels, Belgium.
Presenter:     Geets Xavier

Keywords :  adaptive anatomic average biological classic comparison ct ct-based ct-scan ctvt deblurred delineation distribution dose estro25 fdg-pet gtv gtvct gtvmri gy helical image-guided imaging impact isodose method mm modality mr mri multi-modality oars parotidb pet pet-based planning possible prophylactic ptvs r2 results rt segmentation significant static therapeutic tumor tvs volume

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Precision and limitations of 6D image-guided radiotherapy (IGRT) in clinical practice

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Precision and limitations of 6D image-guided radiotherapy (IGRT) in clinical practice
Authors:     Matthias Guckenberger, Juergen Meyer, Juergen Wilbert, Kurt Baier, Otto Sauer, Michael Flentje Klinik und Poliklinik für Strahlentherapie. Universitätsklinikum Würzburg
Presenter:     Guckenberg Matthias

Keywords :  -10 -2 -3 -4 -6 -8 0mm 1mm 2mm 5mm 6d 6mm accuracy around axis clinical cone-beam correction ct daily degrees difference direction errors fix freedom fusion guckenberger hexapod igrt imaging in-room limitations lr mm motion non-fix number patient practice precision residual rotational set-up si significant tr translation treatment

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Precision and limitations of 6D image-guided radiotherapy (IGRT) in clinical practice

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Precision and limitations of 6D image-guided radiotherapy (IGRT) in clinical practice
Authors:     Matthias Guckenberger, Juergen Meyer, Juergen Wilbert, Kurt Baier, Otto Sauer, Michael Flentje Klinik und Poliklinik für Strahlentherapie. Universitätsklinikum Würzburg
Presenter:     Guckenberg Matthias

Keywords :  -10 -2 -3 -4 -6 -8 0mm 1mm 2mm 5mm 6d 6mm accuracy around axis clinical cone-beam correction ct daily degrees difference direction errors fix freedom fusion guckenberger hexapod igrt imaging in-room limitations lr mm motion non-fix number patient practice precision residual rotational set-up si significant tr translation treatment

Click here to access this document

Copyright © ONCOZONE. All rights reserved


PET imaging in radiotherapy

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     PET imaging in radiotherapy
Authors:     John W. Wong, Ph.D. Radiation Oncology And Molecular Radiation Sciences. Johns Hopkins University, Baltimore, MD
Presenter:     Wong John, Wai-Chiu

Keywords :  activity al altered cancer cc cell cm cm3 ct decr definition et europe f18-fmiso fdg gtv hypoxia ijrobp imaging increased kbq lesion level lung management mismatch mm mmhg non-gated patient pet phase philips pixel planning po2 radiation research rt scan similar studies suv target therapy threshold treatment tumor validation

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Multivariate analysis of 1H NMR spectra as a tool to extract information on irradiation response of white matter

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Multivariate analysis of 1H NMR spectra as a tool to extract information on irradiation response of white matter
Authors:     L Matulewicz 1, M Sokol 1, A Polnik 1, J Wydmanski 2 1 Medical Physics Dept. 2 Radiotherapy Dept. Maria Sklodowska-Crie Memorial Cancer Center and Institute of Oncology, Gliwice, Poland
Presenter:     Matulewicz Lukasz

Click here to access this document

Copyright © ONCOZONE. All rights reserved


Monitoring Early Tumour Response – PET(/CT) to Assess Early Tumour Response

February 28, 2008

Oncozone Publications / Radiation Oncology / Online Article Locator

Title:     Monitoring Early Tumour Response – PET(/CT) to Assess Early Tumour Response
Authors:     Bernd Joachim Krause. Klinik und Poliklinik für Nuklearmedizin, Klinikum rechts der Isar, Technische Universität München
Presenter:     Krause Bernd Joachim

Keywords :  18f al benefit cancer cells clin criteria ct ctx d0 d14 decrease early et evaluation fdg fdg-pet fdg-uptake gastric glucose grade histological imaging individual lordick median metabolic monitoring months morphological non-responder oh oncol ott patients pet reduction resected responder response study survival suv therapy tumour visual vital weber wo

Click here to access this document

Copyright © ONCOZONE. All rights reserved