PMID: 8947904Nov 1, 1996Paper

Pelvic irradiation of the obese patient: a treatment strategy involving megavoltage simulation and intratreatment setup corrections

Medical Physics
K Luchka, S Shalev

Abstract

This study involves a fractionated course of external radiation therapy for a 42 year old female weighing 150 kg, diagnosed with stage IIb cancer of the cervix. The patient could not be simulated in the conventional sense due to weight restrictions on the simulator couch, and body casts or molds were impractical. Using an on-line portal imaging device, treatment fields were established during the first session, and intratreatment verification was used before every subsequent treatment to measure and, when necessary, to correct the patient setup. Two courses of treatment were prescribed with a total dose of 60 Gy delivered by a four field box technique (A/P, P/A, and two lateral fields). Out of a total of 108 treatment fields monitored, 12 anterior fields and 1 posterior field were corrected (exclusive of the first, or simulation fraction). Without corrections, 10% of the initial setup displacements would have had displacements greater than 10 mm, 21% greater than 7 mm, and 41% greater than 5 mm. With the application of intratreatment corrections, only 2% of the displacements were greater than 10 mm, 11% were greater than 7 mm, and 32% were greater than 5 mm. It was also found that the second field treated in a parallel opposed ...Continue Reading

Citations

Aug 30, 2003·Urology·Judd Boczko, Arnold Melman
Feb 13, 2001·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·C W HurkmansB J Mijnheer
Dec 21, 2000·International Journal of Radiation Oncology, Biology, Physics·J C RoeskeA J Mundt
Dec 31, 2002·International Journal of Radiation Oncology, Biology, Physics·Sasa MuticDaniel A Low
Feb 8, 2000·International Journal of Radiation Oncology, Biology, Physics·J C StroomA G Visser
Jan 11, 2003·Medical Dosimetry : Official Journal of the American Association of Medical Dosimetrists·Kenneth D Sweigart
Apr 6, 2004·Brachytherapy·Jason RockhillSandra Arthurs
Sep 28, 2005·Obstetrical & Gynecological Survey·Susan C Modesitt, John R van Nagell
Dec 20, 2007·American Journal of Clinical Oncology·Gregory S MerrickEdward Adamovich
Mar 29, 2014·Practical Radiation Oncology·Tracy S BrayJohn C Roeske
Feb 24, 2009·Brachytherapy·Nikhilesh PatilClement Ma
Sep 23, 2008·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Mehee ChoiMartin Fuss
Jul 1, 2011·Practical Radiation Oncology·Christine M FisherPatricia J Eifel
Oct 25, 2001·Journal of Applied Clinical Medical Physics·M G HermanC R Hagness
Jan 20, 2006·Journal of Applied Clinical Medical Physics·Michael H WittmerMichael G Herman
Mar 7, 2020·Reports of Practical Oncology and Radiotherapy : Journal of Greatpoland Cancer Center in Poznań and Polish Society of Radiation Oncology·Avinash BadajenaAnjali Sachan

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