1. Credentialing for Clinical Trials - IGRT

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    from AAPM / Added

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    2010 ACMP Ying Xiao, PhD, Jefferson Medical College, Philadelphia, PA For more information about the American Association of Physicists in Medicine, visit http://www.aapm.org/

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    • Tools for IMRT Commissioning: Static and Rotating Gantries

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      from AAPM / Added

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      51st AAPM Annual Meeting Ying Xiao, PhD, Thomas Jefferson Univ Hospital, Philadelphia, PA, 19107, US For more information about the American Association of Physicists in Medicine, visit http://www.aapm.org/ AbstractID: 12033 Title: Tools for IMRT Commissioning: Static and Rotating Gantries Commissioning an IMRT system refers to the initial verification by phantom studies that treatments can be planned, prepared, and delivered with sufficient accuracy. Our profession has struggled since the inception of IMRT to define what measurements to make and what degree of accuracy is sufficient. Two AAPM task groups have been dealing with complementary issues. AAPM TG 120 is finalizing a report on dose measurement techniques for IMRT validation. AAPM TG 119 is finalizing a report that recommends a specific set of tests for IMRT commissioning and presents the results of those tests from several institutions in order to illustrate the accuracy that is achievable. The report presents a methodology for other facilities to perform the tests and determine if their achieved accuracy is comparable to this reference baseline. The TG119 tests pose a range of optimization problems requiring simple to complex modulation patterns. The tests include mock prostate, head and neck, and para-spinal geometries. Members of the group have planned and delivered the treatments using their local planning and delivery systems, and then assessed the resulting doses using broadly available dosimetry tools following a specified protocol. Measurements included ion chamber “point” doses and film dosimetry on selected planes for all fields irradiating the phantom. Institutions also evaluated dose distributions produced by individual fields using detector arrays, film, or EPID. Planar dosimetry results were analyzed with gamma criteria of 3% dose/ 3mm distance to agreement. The mean values and standard deviations of the results were used to develop confidence limits for the test results using the concept [Confidence Limit = |Mean| + 1.96 ]. Other facilities can use the test protocol and results as a basis for comparison to this group. Learning objectives for this presentation: 1. Describe the TG119 test suite, analysis protocol, and initial results. 2. Demonstrate how it can be applied by other facilities, including delivery with rotating gantries. 3. Provide examples of IMRT QA failures that can be identified and corrected using these processes.

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      • XiaoGuilin 22July2012

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        from SimplyCool / Added

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        • Tears of the Red Candle (Wang Yuesheng) - xiao solo / 紅燭淚 (王粵生) - 簫獨奏

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          from Dennis Lee / Added

          114 Plays / / 0 Comments

          紅燭淚 - 廣東小曲 (粵劇: 搖紅燭化佛前燈) Tears of the Red Candle - Cantonese Melody Composer: Wang Yuesheng / 作曲: 王粵生 Xiao (Dongxiao) solo: Dennis Kwong Thye Lee / 簫(洞簫)獨奏: 李光泰 Calligraphy: Hu Ruijun / 題字: 胡瑞君 Sound Recording / 錄音: Chris Kouzaris Director and Camera Operator: Suki Mok / 導演:莫兆基 Camera Assistant: Ikin Yum / 任偉機 Filmed in London at Kii Studios / 攝于倫敦

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          • [Visual Story Round5] Music Video by Cookie Roses

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            from Xiao Li / Added

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            by Cookie Roses: Rex Hsieh Xiao Li Ari Novick Albert Shih

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            • OVERBIT CHAOS - Trailer (kh fanfic)

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              from Rena Tasogare / Added

              100 Plays / / 0 Comments

              A trailer for a Kingdom Hearts fanfiction that I've been working the past few years. I'm releasing the chapters starting in the fall, so why not make a trailer? :D The original video (from Youtube) can be found over here: http://www.youtube.com/watch?v=AJt7E314SCY

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              • Rainboard

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                from Change Your Mind / Added

                133 Plays / / 0 Comments

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                • Lives Apart: Xiao Tang Qin

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                  from Digital Global Mail Limited / Added

                  As a child, Xiao Tang Qin taught himself to play music with instruments he made from tin cans and animal hair. He worked his way up to become a concert violinist in Beijing during the 1980s before deciding to embark on a new life in Australia in 1991. He now owns and runs one of the most renowned restaurants in Sydney's Chinatown district.

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                  • agnès b. my bag ! by Qing-Yang Xiao

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                    from agnès b. / Added

                    Created in 2001, the bag which agnès b. affectionately refers to as "my bag!" became an instant best-seller. In 2012, agnès has given carte blanche to ten artists to customize in their own way... And a true collector's edition "my bag!" was born! Créé en 2001, ce sac baptisé affectivement "my bag !" par agnès b. est un vrai best-seller. En 2012, elle offre ce sac comme carte blanche à 10 artistes … Une édition totalement collector limitée à 150 exemplaires est née ! Check on agnesb.com

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                    • 2010 test animation de marche

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                      from Weixiao Xie / Added

                      28 Plays / / 0 Comments

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