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108 results on '"Sibata, Claudio H."'

11. Mobile linear accelerators for intraoperative radiation therapy

Author

Beddar, A. Sam, Domanovic, Mary Ann, Kubu, Mary Lou, Ellis, Rod J., Sibata, Claudio H., and Kinsella, Timothy J.

Subjects
Surgical nursing -- Management, Patients -- Care and treatment, Cancer -- Care and treatment, Intraoperative radiotherapy -- Evaluation, Health, Company business management, Management, Evaluation, Care and treatment
Abstract

Intraoperative radiation therapy (IORT) is becoming an increasingly common procedure for treating gross tumors or tumor beds after resection. Traditionally, IORT delivery required either heavily shielded ORs or transporting anesthetized patients to the department of radiation oncology. The availability of a self-shielded mobile electron linear accelerator has made this treatment modality accessible to institutions that otherwise would not consider performing IORT. This article describes IORT equipment and supplies and addresses perioperative nursing issues, as well as the roles of other team members involved in the delivery of IORT. AORN J 74 (Nov 2001) 700705., Editor's note: This is the second of two articles planned to help perioperative nurses understand a new approach to intraoperotive radiation therapy. Part one can be found in the October [...]

Published
2001

12. A new approach to intraoperative radiation therapy. (Home Study Program)

Author

Beddar, A. Sam, Kubu, Mary Lou, Domanovic, Mary Ann, Ellis, Rod J., Kinsella, Timothy J., and Sibata, Claudio H.

Subjects
Linear accelerators -- Health aspects -- Methods, Tumors -- Care and treatment, Cancer -- Care and treatment, Intraoperative radiotherapy -- Methods -- Health aspects, Radiotherapy -- Health aspects -- Methods, Health
Abstract

Intraoperative radiation therapy (IORT) is an adjuvant treatment in which a large single dose of radiation is delivered during a surgical procedure to resected tumor beds or to an unresectable tumor. This article discusses the implementation of an IORT program and highlights the successful collaboration needed between the OR and radiation oncology departments. A better understanding of IORT in the OR setting will contribute to smooth program implementation. AORN J 74 (Oct 2001) 500-505., Editor's note: This is the first of two articles planned to help perioperative nurses understand a new approach to intraoperative radiation therapy. Intraoperative radiation therapy (IORT) is the delivery of [...]

Published
2001

13. Total error shift patterns for daily CT on rails image-guided radiotherapy to the prostate bed

Author

Mota Helvecio C, Ferreira Maria C, Liu Jingxia, Gay Hiram A, Cavalieri Ronaldo, Sibata Claudio H, and Allison Ron R

Subjects
Post-prostatectomy radiotherapy, IGRT, CT on rails, shift total error, prostate bed, Medical physics. Medical radiology. Nuclear medicine, R895-920, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Background To evaluate the daily total error shift patterns on post-prostatectomy patients undergoing image guided radiotherapy (IGRT) with a diagnostic quality computer tomography (CT) on rails system. Methods A total of 17 consecutive post-prostatectomy patients receiving adjuvant or salvage IMRT using CT-on-rails IGRT were analyzed. The prostate bed's daily total error shifts were evaluated for a total of 661 CT scans. Results In the right-left, cranial-caudal, and posterior-anterior directions, 11.5%, 9.2%, and 6.5% of the 661 scans required no position adjustments; 75.3%, 66.1%, and 56.8% required a shift of 1 - 5 mm; 11.5%, 20.9%, and 31.2% required a shift of 6 - 10 mm; and 1.7%, 3.8%, and 5.5% required a shift of more than 10 mm, respectively. There was evidence of correlation between the x and y, x and z, and y and z axes in 3, 3, and 3 of 17 patients, respectively. Univariate (ANOVA) analysis showed that the total error pattern was random in the x, y, and z axis for 10, 5, and 2 of 17 patients, respectively, and systematic for the rest. Multivariate (MANOVA) analysis showed that the (x,y), (x,z), (y,z), and (x, y, z) total error pattern was random in 5, 1, 1, and 1 of 17 patients, respectively, and systematic for the rest. Conclusions The overall daily total error shift pattern for these 17 patients simulated with an empty bladder, and treated with CT on rails IGRT was predominantly systematic. Despite this, the temporal vector trends showed complex behaviors and unpredictable changes in magnitude and direction. These findings highlight the importance of using daily IGRT in post-prostatectomy patients.

Published
2011
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