Proceedings of the Korean Society of Medical Physics Conference (한국의학물리학회:학술대회논문집)
- 2002.09a
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- Pages.506-508
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- 2002
Quantitative Measurements of 3-D Imaging with Computed Tomography using Human Skull Phantom
- Kim, Dong-Wook (BK21 Project for Medical Sciences, Yonsei University, Research Institute of Radiological Science, Yonsei University) ;
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Kim, Hee-Joung
(BK21 Project for Medical Sciences, Yonsei University, Department of Radiology, College of Medicine, Yonsei University) ;
- Haijo Jung (Research Institute of Radiological Science, Yonsei University, Department of Radiology, College of Medicine, Yonsei University) ;
- Soonil Hong (BK21 Project for Medical Sciences, Yonsei University, Research Institute of Radiological Science, Yonsei University) ;
- Yoo, Young-Il (BK21 Project for Medical Sciences, Yonsei University, Research Institute of Radiological Science, Yonsei University) ;
- Kim, Dong-Hyeon (BK21 Project for Medical Sciences, Yonsei University, Research Institute of Radiological Science, Yonsei University) ;
- Kim, Kee-Deog (Department of Dental Radiology, College of Dentistry, Yonsei University)
- Published : 2002.09.01
Abstract
As an advancement of medical imaging modalities and analyzing software with multi-function, active researches to acquire high contrast and high resolution image being done. In recently, development of medical imaging modalities like as Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) is aiming to display anatomical structure more accuracy and faster. Thus, one of the important areas in CT today is the use of CT scanner for the quantitative evaluation of 3-D reconstruction images from 2-D tomographic images. In CT system, the effective slice thickness and the quality of 3-D reconstructed image will be influenced by imaging acquisition parameters (e.g. pitch and scan mode). In diagnosis and surgical planning, the accurate distance measurements of 3-D anatomical structures play an important role and the accuracy of distance measurements will depend on the acquisition parameters such as slice thickness, pitch, and scan mode. The skull phantom was scanned with SDCT for various acquisition parameters and acquisition slice thicknesses were 3 and 5 mm, and reconstruction intervals were 1, 2, and 3 mm to each pitch. 3-D visualizations and distance measurements were performed with PC based 3-D rendering and analyzing software. Results showed that the image quality and the measurement accuracy of 3-D SDCT images are independent to the reconstruction intervals and pitches.