Technical Advance

Vitreous Image Enhancement in an Ophthalmic Sonographic Imaging System Using Golay Coded Excitation

Corresponding Author

Kai Liu MS

[email protected]

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China

Address correspondence and reprint requests to Kai Liu, MS, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 10084, China.Search for more papers by this author

Qiyu Peng PhD,

Qiyu Peng PhD

Department of Urology, School of Medicine, Stanford University, Stanford, California USA

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Xueqiao Wang MS,

Xueqiao Wang MS

Tianjin Suoer Electronics Co, Ltd, Tianjin, China.

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Shangkai Gao MS,

Shangkai Gao MS

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China

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Kai Liu MS,

Corresponding Author

Kai Liu MS

[email protected]

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China

Address correspondence and reprint requests to Kai Liu, MS, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 10084, China.Search for more papers by this author

Qiyu Peng PhD,

Qiyu Peng PhD

Department of Urology, School of Medicine, Stanford University, Stanford, California USA

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Xueqiao Wang MS,

Xueqiao Wang MS

Tianjin Suoer Electronics Co, Ltd, Tianjin, China.

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Shangkai Gao MS,

Shangkai Gao MS

Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China

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First published: 01 September 2005

https://doi.org/10.7863/jum.2005.24.9.1251

Citations: 2

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Abstract

Objectives

The purpose of this study was to enhance the weak echoes of low reflective vitreous opacities on ophthalmic sonography.

Methods

A simulation study on a vitreous enhancement algorithm based on coded excitation was performed, with the analysis of the transmit efficiency and motion effects. On the basis of the simulation results, we have implemented a 10-MHz B-mode experimental sonographic platform with coded excitation. In the experimental platform, a field programmable gated array is used to apply a real-time signal-processing and imaging algorithm.

Results

A high-frequency ophthalmic sonographic imaging system based on Golay complementary sequence coded excitation is presented. The images of human eyes show appreciable improvement of the contrast resolution of low reflective vitreous opacities while suppressing the noise level.

Conclusions

The images show the effectiveness of the vitreous enhancement algorithm and its potential clinical application.

References

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Citing Literature

Volume24, Issue9

September 2005

Pages 1251-1259

Vitreous Image Enhancement in an Ophthalmic Sonographic Imaging System Using Golay Coded Excitation

Abstract

Objectives

Methods

Results

Conclusions

References

Citing Literature

References

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Vitreous Image Enhancement in an Ophthalmic Sonographic Imaging System Using Golay Coded Excitation

Abstract

Objectives

Methods

Results

Conclusions

References

Citing Literature

References

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