PURPOSE: This article presents a method of quantitative assessment of the degree of conformality and its designation by a single numerical value. METHODS AND MATERIALS: A conformation number is introduced to evaluate objectively the degree of conformality. A comparison is made between the conformation number as found for external beam treatment plans and ultrasonically guided 125I seed implants for localized prostate cancer. RESULTS: The conformation number in case of a planning target volume irradiated with two opposed open beams, three open beams, and three beams with customized blocks amounted to 0.17, 0.39, and 0.65, respectively. The conformation number as found for ultrasonically guided permanent prostate implants using 125I seeds averaged 0.72. CONCLUSIONS: The conformation number is a convenient instrument for indicating the degree of conformality by a single numerical value. Treatments with a conformation number greater than 0.60 might be termed conformal radiotherapy.
PURPOSE: This article presents a method of quantitative assessment of the degree of conformality and its designation by a single numerical value. METHODS AND MATERIALS: A conformation number is introduced to evaluate objectively the degree of conformality. A comparison is made between the conformation number as found for external beam treatment plans and ultrasonically guided 125I seed implants for localized prostate cancer. RESULTS: The conformation number in case of a planning target volume irradiated with two opposed open beams, three open beams, and three beams with customized blocks amounted to 0.17, 0.39, and 0.65, respectively. The conformation number as found for ultrasonically guided permanent prostate implants using 125I seeds averaged 0.72. CONCLUSIONS: The conformation number is a convenient instrument for indicating the degree of conformality by a single numerical value. Treatments with a conformation number greater than 0.60 might be termed conformal radiotherapy.
Authors: Alonso N Gutiérrez; David C Westerly; Wolfgang A Tomé; Hazim A Jaradat; Thomas R Mackie; Søren M Bentzen; Deepak Khuntia; Minesh P Mehta Journal: Int J Radiat Oncol Biol Phys Date: 2007-10-01 Impact factor: 7.038
Authors: Christos Moustakis; Oliver Blanck; Fatemeh Ebrahimi Tazehmahalleh; Mark Ka Heng Chan; Iris Ernst; Thomas Krieger; Marciana-Nona Duma; Markus Oechsner; Ute Ganswindt; Christian Heinz; Horst Alheit; Hilbert Blank; Ursula Nestle; Rolf Wiehle; Christine Kornhuber; Christian Ostheimer; Cordula Petersen; Gerhard Pollul; Wolfgang Baus; Georg Altenstein; Eric Beckers; Katrin Jurianz; Florian Sterzing; Matthias Kretschmer; Heinrich Seegenschmiedt; Torsten Maass; Stefan Droege; Ulrich Wolf; Juergen Schoeffler; Uwe Haverkamp; Hans Theodor Eich; Matthias Guckenberger Journal: Strahlenther Onkol Date: 2017-05-31 Impact factor: 3.621