Application of Adaptive Search Window-Based Nonlocal Total Variation Filter in Low-Dose Computed Tomography Images: A Phantom Study
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作者:
Kim, Hajin
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Gachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South KoreaGachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South Korea
Kim, Hajin
[1
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Cha, Bo Kyung
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机构:
Korea Electrotechnol Res Inst KERI, Precis Med Device Res Ctr, 111 Hanggaul Ro, Ansan 15588, South KoreaGachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South Korea
Cha, Bo Kyung
[2
]
Kim, Kyuseok
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Eulji Univ, Dept Biomed Engn, 553 Sanseong Daero, Seongnam 13135, South KoreaGachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South Korea
Kim, Kyuseok
[3
]
Lee, Youngjin
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Gachon Univ, Dept Radiol Sci, 191 Hambakmoe Ro, Incheon 21936, South KoreaGachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South Korea
Lee, Youngjin
[4
]
机构:
[1] Gachon Univ, Dept Hlth Sci, Gen Grad Sch, 191 Hambakmoe Ro, Incheon 21936, South Korea
[2] Korea Electrotechnol Res Inst KERI, Precis Med Device Res Ctr, 111 Hanggaul Ro, Ansan 15588, South Korea
[3] Eulji Univ, Dept Biomed Engn, 553 Sanseong Daero, Seongnam 13135, South Korea
[4] Gachon Univ, Dept Radiol Sci, 191 Hambakmoe Ro, Incheon 21936, South Korea
Computed tomography (CT) imaging using low-dose radiation effectively reduces radiation exposure; however, it introduces noise amplification in the resulting image. This study models an adaptive nonlocal total variation (NL-TV) algorithm that efficiently reduces noise in X-ray-based images and applies it to low-dose CT images. In this study, an AAPM CT performance phantom is used, and the resulting image is obtained by applying an annotation filter and a high-pitch protocol. The adaptive NL-TV filter was designed by applying the optimal window value calculated by confirming the difference between Gaussian filtering and the basic NL-TV approach. For quantitative image quality evaluation parameters, contrast-to-noise ratio (CNR), coefficient of variation (COV), and sigma value were used to confirm the noise reduction effectiveness and spatial resolution value. The CNR and COV values in low-dose CT images using the adaptive NL-TV filter, which performed an optimization process, improved by approximately 1.29 and 1.45 times, respectively, compared with conventional NL-TV. In addition, the adaptive NL-TV filter was able to acquire spatial resolution data that were similar to a CT image without applying noise reduction. In conclusion, the proposed NL-TV filter is feasible and effective in improving the quality of low-dose CT images.
机构:
Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Hunan Univ, Coll Elect & Informat Engn, Changsha, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Fu, Jing
Feng, Fei
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Peking Univ Shenzhen Hosp, Dept Radiol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Feng, Fei
Quan, Huimin
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Hunan Univ, Coll Elect & Informat Engn, Changsha, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Quan, Huimin
Wan, Qian
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Univ Chinese Acad Sci, Shenzhen Coll Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Wan, Qian
Chen, Zixiang
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Chen, Zixiang
Liu, Xin
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Liu, Xin
Zheng, Hairong
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Zheng, Hairong
Liang, Dong
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Liang, Dong
Cheng, Guanxun
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机构:
Peking Univ Shenzhen Hosp, Dept Radiol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
Cheng, Guanxun
Hu, Zhanli
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Chinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R ChinaChinese Acad Sci, Lauterbur Res Ctr Biomed Imaging, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China
机构:
Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
Lam, W. W.
Yu, S. K.
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Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
Yu, S. K.
Geng, H.
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Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
Geng, H.
Wong, W. K. R.
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Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
Wong, W. K. R.
Ho, Y. W.
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Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
Ho, Y. W.
Liu, S. F.
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Hong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R ChinaHong Kong Sanat & Hosp, Dept Radiotherapy, Happy Valley, Hong Kong, Peoples R China
机构:
Yonsei Univ, Sch Elect & Elect Engn, 50 Yonsei Ro, Seoul, South KoreaYonsei Univ, Sch Elect & Elect Engn, 50 Yonsei Ro, Seoul, South Korea
Lee, Min Seok
Park, Sang Wook
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Daegu Gyeongbuk Med Innovat Fdn, Med Device Dev Ctr, 80 Cheombok Ro, Daegu 41061, South KoreaYonsei Univ, Sch Elect & Elect Engn, 50 Yonsei Ro, Seoul, South Korea
Park, Sang Wook
Lee, Sang Yoon
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Yonsei Univ, Sch Elect & Elect Engn, 50 Yonsei Ro, Seoul, South KoreaYonsei Univ, Sch Elect & Elect Engn, 50 Yonsei Ro, Seoul, South Korea
机构:
Erasmus MC Univ Med Ctr, Ctr Pain Med, POB 2040, NL-3000 CA Rotterdam, Netherlands
Erasmus MC Univ Med Ctr, Dept Radiol & Nucl Med, Rotterdam, NetherlandsErasmus MC Univ Med Ctr, Ctr Pain Med, POB 2040, NL-3000 CA Rotterdam, Netherlands
Delhaas, Elmar M.
van der Lugt, Aad
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Erasmus MC Univ Med Ctr, Dept Radiol & Nucl Med, Rotterdam, NetherlandsErasmus MC Univ Med Ctr, Ctr Pain Med, POB 2040, NL-3000 CA Rotterdam, Netherlands
机构:
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Higuchi K.
Nagao M.
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Department of Molecular Imaging and Diagnosis, Graduate School of Medical Sciences, Kyushu University, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Nagao M.
Matsuo Y.
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Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Matsuo Y.
Sunami S.
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Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Sunami S.
Kamitani T.
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Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Kamitani T.
Jinnouchi M.
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Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Jinnouchi M.
Yonezawa M.
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机构:
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Yonezawa M.
Yamasaki Y.
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Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Yamasaki Y.
Yabuuchi H.
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Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka-cityDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
Yabuuchi H.
Hatkenaka M.
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Department of Radiology, Sapporo Medical University, SapporoDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka-city
机构:
Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Lai, Yutian
Shen, Cheng
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Shen, Cheng
Wang, Xin
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Wang, Xin
Du, Heng
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Du, Heng
Chen, Dali
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Chen, Dali
Tian, Long
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Tian, Long
Zhou, Xudong
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China
Zhou, Xudong
Che, Guowei
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Sichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R ChinaSichuan Univ, West China Hosp, Dept Thorac Surg, Chengdu 610041, Peoples R China