title: AP-PA field orientation followed by IMRT reduces lung exposure in comparison to conventional 3D conformal and sole IMRT in centrally located lung tumors.
abstract: Little attention has been paid to the fact that intensity modulated radiation therapy (IMRT) techniques do not easily enable treatment with opposed beams. Three treatment plans (3 D conformal, IMRT, and combined (anterior-posterior-posterio-anterior (AP-PA) + IMRT) of 7 patients with centrally-located lung cancer were compared for exposure of lung, spinal cord and esophagus. Combined IMRT and AP-PA techniques offer better lung tissue sparing compared to plans predicated solely on IMRT for centrally-located lung tumors.
authors.affiliation: Tel Aviv Sourasky Medical Center, Radiation Oncology Department, Tel Aviv, Israel. slavas2506@yahoo.com
authors.forename: Viacheslav
authors.initials: V
authors.lastname: Soyfer
authors.forename: Yaron
authors.initials: Y
authors.lastname: Meir
authors.forename: Benjamin W
authors.initials: BW
authors.lastname: Corn
authors.forename: Dan
authors.initials: D
authors.lastname: Schifter
authors.forename: Eliahu
authors.initials: E
authors.lastname: Gez
authors.forename: Haim
authors.initials: H
authors.lastname: Tempelhoff
authors.forename: Natan
authors.initials: N
authors.lastname: Shtraus
mesh_terms: D000328:Adult; D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000532:radiotherapy*; D004947:Esophagus; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008175:Lung Neoplasms / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D059351:Organ Sparing Treatments; D009949:Orientation; D011379:Prognosis; D011832:Radiation Injuries / Q000517:prevention & control*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D020266:Radiotherapy, Conformal; D050397:Radiotherapy, Intensity-Modulated; D055752:Small Cell Lung Carcinoma / Q000532:radiotherapy*; D013116:Spinal Cord