Combination of variational mode decomposition and coherent factor for ultrasound computer tomography.
Variational mode decomposition
ring array
ultrasound computer tomography
Journal
Technology and health care : official journal of the European Society for Engineering and Medicine
ISSN: 1878-7401
Titre abrégé: Technol Health Care
Pays: Netherlands
ID NLM: 9314590
Informations de publication
Date de publication:
2022
2022
Historique:
pubmed:
7
2
2022
medline:
11
3
2022
entrez:
6
2
2022
Statut:
ppublish
Résumé
Ultrasound computed tomography (USCT) is a promising technique for improving the detection of breast cancer. Image quality of USCT has a major impact on the breast cancer diagnosis. This paper investigates the combination of variational mode decomposition (VMD) and coherent factor method for USCT image quality enhancement. The signals can be decomposed into multiple intrinsic mode functions (IMFs) sifting through the frequency by VMD method. Refactoring the remaining IMFs, spatio-temporally smoothed coherence factor (STSCF) beamforming method is applied to reconstructed data for USCT. The validation of combination the VMD and STSCF is described through the breast phantom experiment and in vivo experiments. The evaluation indicators such as contrast ratio (CR), contrast to noise ratio (CNR) and signal to noise ratio (SNR) have been better improved in the experimental results. For the breast phantom, the proposed method gives a higher resolution and the better contrast properties for the hyperechoic cyst. The borders of cysts and tumors in the breast phantom can be distinguished clearly. For volunteer breast experiments, artifacts are removed more efficiently while the clutters are suppressed simultaneously. The combination of VMD and STSCF can further reduce the noise and suppress the side lobes.
Sections du résumé
BACKGROUND
BACKGROUND
Ultrasound computed tomography (USCT) is a promising technique for improving the detection of breast cancer. Image quality of USCT has a major impact on the breast cancer diagnosis.
OBJECTIVE
OBJECTIVE
This paper investigates the combination of variational mode decomposition (VMD) and coherent factor method for USCT image quality enhancement.
METHODS
METHODS
The signals can be decomposed into multiple intrinsic mode functions (IMFs) sifting through the frequency by VMD method. Refactoring the remaining IMFs, spatio-temporally smoothed coherence factor (STSCF) beamforming method is applied to reconstructed data for USCT.
RESULTS
RESULTS
The validation of combination the VMD and STSCF is described through the breast phantom experiment and in vivo experiments. The evaluation indicators such as contrast ratio (CR), contrast to noise ratio (CNR) and signal to noise ratio (SNR) have been better improved in the experimental results. For the breast phantom, the proposed method gives a higher resolution and the better contrast properties for the hyperechoic cyst. The borders of cysts and tumors in the breast phantom can be distinguished clearly. For volunteer breast experiments, artifacts are removed more efficiently while the clutters are suppressed simultaneously.
CONCLUSION
CONCLUSIONS
The combination of VMD and STSCF can further reduce the noise and suppress the side lobes.
Identifiants
pubmed: 35124594
pii: THC228016
doi: 10.3233/THC-228016
pmc: PMC9028653
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
163-171Références
IEEE Trans Ultrason Ferroelectr Freq Control. 2010;57(2):317-26
pubmed: 20178898
IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Jun;57(6):1329-46
pubmed: 20529709
IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Jul;58(7):1377-88
pubmed: 21768022