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Matthew D. Callister and Leonard L. Gunderson

daily imaged-guidance (ultrasound, kilovoltage x-ray, or cone-beam CT) to optimize patient setup and therefore accuracy of treatment delivery. Initial experiences with IGRT for gastric cancer were with ultrasound (B-mode acquisition and targeting) 22

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Justin Famoso, Gerald Lemole, Srinath Sundararajan and Baldassarre Stea

administered with a 5-field intensity-modulated radiation therapy technique. Image guidance was achieved with daily kilovoltage x-ray imaging using the ExacTrac system by Brainlab. On completion of RT, the patient was evaluated for systemic therapy options

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Christopher M. McPherson and Raymond Sawaya

2000 ; 47 : 1081 – 1089 ; discussion 1089–1090 . 18 Claus EB Horlacher A Hsu L . Survival rates in patients with low-grade glioma after intraoperative magnetic resonance image guidance . Cancer 2005 ; 103 : 1227 – 1233 . 19

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Puneeth Iyengar and Robert D. Timmerman

are tumor motion assessment and control, patient immobilization and positioning, target delineation and image guidance for precise radiation targeting, and class solutions in radiation treatment planning. Lung tumors, especially those in the lower

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Neil K. Taunk, Daniel E. Spratt, Mark Bilsky and Yoshiya Yamada

metastases, spinal cord compression, and brain metastases. Significant technologic advances in RT, including intensity-modulation RT, image-guidance RT, stereotactic body RT (SBRT), and stereotactic radiosurgery (SRS), have allowed radiation oncologists to

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Frederick M. Dirbas

( 1 Suppl 1 ): S173 . 29 Hasan Y Kim L Martinez A . Image guidance in external beam accelerated partial breast irradiation: comparison of surrogates for the lumpectomy cavity . Int J Radiat Oncol Biol Phys 2008 ; 70 : 619 – 625

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Joseph M. Herman and Albert C. Koong

concurrent chemoradiation often decreases the ability to give patients full-dose systemic therapy. Recently, however, advances in radiation therapy techniques, including image guidance, target delineation (ie, fiducial markers, dose constraints), and motion

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Stephen Pereira

potential therapeutic option for patients with inoperable adenocarcinomas localized to the region of the head of the pancreas. Light is delivered directly to internal tumors using fibers passed through needles positioned percutaneously under image guidance

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James L. Mohler

similar technologic explosion has improved radiation therapy. Intensity modulated radiation therapy (IMRT) using daily image guidance (IGRT) provides more focused therapy, which has allowed the delivery of higher doses of radiation therapy with less dose

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Therese B. Bevers, Mark Helvie, Ermelinda Bonaccio, Kristine E. Calhoun, Mary B. Daly, William B. Farrar, Judy E. Garber, Richard Gray, Caprice C. Greenberg, Rachel Greenup, Nora M. Hansen, Randall E. Harris, Alexandra S. Heerdt, Teresa Helsten, Linda Hodgkiss, Tamarya L. Hoyt, John G. Huff, Lisa Jacobs, Constance Dobbins Lehman, Barbara Monsees, Bethany L. Niell, Catherine C. Parker, Mark Pearlman, Liane Philpotts, Laura B. Shepardson, Mary Lou Smith, Matthew Stein, Lusine Tumyan, Cheryl Williams, Mary Anne Bergman and Rashmi Kumar

. FNA of nonpalpable lesions can be performed under imaging guidance (eg, ultrasound), although there is evidence to indicate that both core needle biopsy and excisional biopsy are more accurate than FNA in the evaluation of nonpalpable breast lesions