On Adobe Photoshop, contours of 19 anatomical structures in the MRIs were semiautomatically drawn using MAGNETIC LASSO TOOL successively, manually corrected using either LASSO TOOL or DIRECT SELECTION TOOL to make 557 segmented images. The entire body of a volunteer was MR scanned to make 557 MRIs, which were transferred to a personal computer. To achieve this purpose, the following trials were performed. The segmented images are used for making three-dimensional images, which are helpful in medical education and research. The purpose of this research is to enable anybody to semiautomatically segment the anatomical structures in the MRIs, CTs, and other medical images on the personal computer. Park, Jin Seo Chung, Min Suk Hwang, Sung Bae Techniques on semiautomatic segmentation using the Adobe Photoshop
#PHOTOSHOP LIQUIFY TOOL CAUSING FRAGMENTS VERIFICATION#
The geometrical verification system using Adobe Photoshop is available on any PC with this software and is useful for improving the accuracy of verification. Errors of the data obtained using Adobe Photoshop were significantly smaller than those of the data obtained from films on light boxes (p < 0.007). The errors, defined as the differences between the control data and the measurement data, were assessed.
To obtain control data, lead balls were used as a fiducial point for matching the films accurately. Under the other condition, films were scanned into a computer and displayed using Adobe Photoshop, and examiners measured distances between the isocenter on simulation films and those on portal films by adjusting the bony structures. Under one condition, films were hanged on light boxes, and examiners measured distances between the isocenter on simulation films and that on portal films by adjusting the bony structures. We prepared the following two conditions for verification. The purpose of this study was to assess the accuracy of a geometrical verification system using Adobe Photoshop. It is possible to scan images and then view them simultaneously with this software. Ishiyama, Hiromichi Suzuki, Koji Niino, Keiji Hosoya, Takaaki Hayakawa, KazushigeĪdobe Photoshop is used worldwide and is useful for comparing portal films with simulation films. Geometrical verification system using Adobe Photoshop in radiotherapy.
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