Hun-Joo Shin

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OBJECTIVE To investigate the usefulness of the 3DVH software with an ArcCHECK 3D diode array detector in newly designed plans with various target sizes. METHODS The isocenter dose was measured with an ion-chamber and was compared with the planned and 3DVH predicted doses. The 2D gamma passing rates were evaluated at the diode level by using the ArcCHECK(More)
OBJECTIVE Boluses are used in high-energy radiotherapy in order to overcome the skin sparing effect. In practice though, commonly used flat boluses fail to make a perfect contact with the irregular surface of the patient's skin, resulting in air gaps. Hence, we fabricated a customized bolus using a 3-dimensional (3D) printer and evaluated its feasibility(More)
237 This work was supported by the fusion research program of Korea research council for industrial science and technology (B551179-12-08-00, Development of Convergent Radio Therapy Equipment with O-arm CT) funded by the Ministry of Trade, Industry&Energy (MOTIE, Korea). Submitted November, 29, 2013, Accepted December, 9, 2013 Corresponding Author:(More)
OBJECTIVE Various methods for radiation-dose calculation have been investigated over previous decades, focusing on the use of magnetic resonance imaging (MRI) only. The bulk-density-assignment method based on manual segmentation has exhibited promising results compared to dose-calculation with computed tomography (CT). However, this method cannot be easily(More)
CyberKnife Center, Seoul St.Mary’s Hospital, The Catholic University of Korea, #505 Banpo-Dong, Seocho-Gu,Seoul,137-701,Korea Department of Radiation Oncology, Seoul St.Mary’s Hospital, The Catholic University of Korea, Seoul, Korea CyberKnife Clinic, Wooridul Spine Hospital, Seoul, Korea Department of Neurosurgery, Seoul St.Mary’s Hospital, The Catholic(More)
BACKGROUND To create an arc therapy plan, certain current general calculation algorithms such as pencil-beam calculation (PBC) are based on discretizing the continuous arc into multiple fields to simulate an arc. The iPlan RT™ treatment planning system incorporates not only a PBC algorithm, but also a more recent Monte Carlo calculation (MCC) algorithm that(More)
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