A simple technique for an accurate shielding of the lungs during total body irradiation Hana Mekdash, Bilal Shahine, Wassim Jalbout, Chirine Chehab, Helena.

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Presentation transcript:

A simple technique for an accurate shielding of the lungs during total body irradiation Hana Mekdash, Bilal Shahine, Wassim Jalbout, Chirine Chehab, Helena Abdel Khalek, Bassem Youssef Technical Innovations and Patient Support in Radiation Oncology Volume 3, Pages 13-18 (September 2017) DOI: 10.1016/j.tipsro.2017.07.001 Copyright © 2017 The Authors Terms and Conditions

Fig. 1 An example of a patient in position for a TBI treatment at our institution. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 2 An example of a patient being CT simulated in the treatment position (left). Fiducial markers attached on the patient’s skin to be aligned with lasers for positioning purposes (right). Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 3 Beam’s Eye View (BEV) of the AP and PA fields created by the TPS and conforming to lung contours to be later projected on the patient’s skin. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 4 An example of a light field projected on the patient’s skin to mark the extent of the lungs. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 5 Illustration of the steps needed for marking the projection of the lungs on the patient’s skin: Room lights are turned off (a), a light field is projected on the patient’s skin (b), physician marks the light field (c) and marks are kept on the patient for the remaining treatment days (d). Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 6 A radiographic film acquired to delineate the lungs and to be later reproduced on a Styrofoam. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 7 Cerrobend shielding blocks fixed on a tray to be used for treatment. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions

Fig. 8 A comparison of the overall time of the conventional vs. new technique. Technical Innovations and Patient Support in Radiation Oncology 2017 3, 13-18DOI: (10.1016/j.tipsro.2017.07.001) Copyright © 2017 The Authors Terms and Conditions