Ultrasound Computed Tomography of Knee Joint. Issue 4 (1st July 2020)
- Record Type:
- Journal Article
- Title:
- Ultrasound Computed Tomography of Knee Joint. Issue 4 (1st July 2020)
- Main Title:
- Ultrasound Computed Tomography of Knee Joint
- Authors:
- Li, Ruijing
Chen, Houjin
Peng, Yahui
Li, Jupeng
Li, Yanfeng - Abstract:
- Abstract : Ultrasound computed tomography (UCT) is considered to have great potential for the early diagnosis of knee joint injuries. Combining prior knowledge and sound speeds of tissues, UCT can diagnose a variety of symptoms and the extent of tissue lesion. However, no existing studies can reconstruct the sound speed distributions of knee joints in UCT. Therefore, in this study, sound speed distributions of knee joints are reconstructed to provide an imaging basis for the formulation of a treatment plan. In addition, Full waveform inversion (FWI) methods are utilized to estimate highresolution images. However, for media with large variations in sound speeds, traditional FWI methods may lead to a cycle‐skipping phenomenon and incorrect convergence direction. Hence, this study proposes a multi‐centerfrequency source based FWI method to overcome the above limitations. A penalized least‐squares optimization problem is constructed to obtain a numerical solution of the sound speed distribution. Computer simulations are conducted to prove the effectiveness and robustness of the proposed method. Furthermore, the reasons for selecting the center frequencies of sources are analyzed. Two numerical knee joint phantoms are used to evaluate the performance. The results suggest that the biases of the reconstructed images are less than 1% under a 5% noise condition.
- Is Part Of:
- Chinese journal of electronics. Volume 29:Issue 4(2020)
- Journal:
- Chinese journal of electronics
- Issue:
- Volume 29:Issue 4(2020)
- Issue Display:
- Volume 29, Issue 4 (2020)
- Year:
- 2020
- Volume:
- 29
- Issue:
- 4
- Issue Sort Value:
- 2020-0029-0004-0000
- Page Start:
- 705
- Page End:
- 716
- Publication Date:
- 2020-07-01
- Subjects:
- acoustic tomography -- biomedical ultrasonics -- bone -- computer simulation -- image reconstruction -- injuries -- least squares approximations -- medical image processing -- optimisation -- phantoms
penalized least‐squares optimization problem -- multicenterfrequency source based FWI method -- cycle‐skipping phenomenon -- knee joint injuries -- ultrasound computed tomography -- reconstructed images -- numerical knee joint phantoms -- computer simulations -- full waveform inversion methods -- sound speed distribution -- tissue lesion
Sound speed -- Knee joint -- Image reconstruction -- Ultrasound computed tomography -- Full waveform inversion
Electronics -- Periodicals
Electronics -- China -- Periodicals
Electronics
China
Periodicals
621.38105 - Journal URLs:
- https://ietresearch.onlinelibrary.wiley.com/journal/20755597 ↗
http://ieeexplore.ieee.org/servlet/opac?punumber=7479413 ↗
http://ieeexplore.ieee.org/Xplore/home.jsp ↗ - DOI:
- 10.1049/cje.2020.05.017 ↗
- Languages:
- English
- ISSNs:
- 1022-4653
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3180.317180
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 16429.xml