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技術を用いて心臓血管系の3D解析研究を進めている。VRでは臓器の内腔を可視化することができ、また3D構築した画像に直接介入し、従来の2D解析では評価困難であった複雑な構造も術者の視点で直観的に計測できるという利点がある。あらゆる医療画像データを三次元化し, かつ直感的な立体計測が可能なVR技術は, これまでの診断精度を上回る形態学的な情報を臨床医に提示し得ると考えられる。特に外科医にとって有用な手術支援VR画像は, 難易度が高い手術の治療成績を向上させる可能性が高い。", "subitem_description_type": "Abstract"}, {"subitem_description": "Adequate preoperative planning may facilitate successful procedures in cardiovascular surgery. We have newly developed a system the Vesalius 3D suite, combining three-dimensional (3D) image-processing software with an optic-tracking spatial navigation, allowing quick, accessible 3D image interpretation for virtual reality (VR) exploration and measurement of complex anatomy. In this review, we present a novel method of virtual imaging analysis for preoperative planning and simulation in cardiovascular operation using this 3D-VR system. Based on unimodal or multimodal medical imaging data, DICOM data sets can be reconstructed for 3D visualization. Virtually reconstructed images can be viewed on stereoscopic 3D display, revealing each patient’s specific anatomy and the internal structures in exquisite detail. Highly accessible 3D interpretation promptly permits precise and intuitive measurements of repair-relevant anatomical parameters including geometrically complex shapes. This technology may promote understanding of form and function in the cardiovascular system, and facilitate operative procedures in more challenging cases. Furthermore, this system can be especially valuable for any surgeon to gain experience in practicing for rarely-performed procedures or uncommon patient-specific preoperative surgical simulations. 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