This letter exploits fundamental characteristics of a wavelet transform image to form a progressive octave-based spatial resolution. Each wavelet subband is coded based on zeroblock and quardtree partitioning ordering...This letter exploits fundamental characteristics of a wavelet transform image to form a progressive octave-based spatial resolution. Each wavelet subband is coded based on zeroblock and quardtree partitioning ordering scheme with memory optimization technique. The method proposed in this letter is of low complexity and efficient for Internet plug-in software.展开更多
Objective: to analyze the positive rate of cervical cancer by TCT and HPV in cervical cancer screening, so as to improve the clinical screening ability of cervical cancer and provide the basis for cervical cancer scre...Objective: to analyze the positive rate of cervical cancer by TCT and HPV in cervical cancer screening, so as to improve the clinical screening ability of cervical cancer and provide the basis for cervical cancer screening in the future. Methods: 3902 women in womens health examination in our department were selected as the research objects. In the physical examination, each research object underwent HPV test and TCT test, and then the results of TCT test, HPV test and TCT combined with HPV test were compared one by one. The diagnostic gold standard was biopsy results. Results: among the 3902 cervical cancer screeners, there were 1575 cases with CIN and 2327 cases with chronic inflammation by histopathological examination. TCT was positive in 1864 cases and negative in 2038 cases, with sensitivity of 59.68%, false negative rate of 40.32%, specificity of 60.29%, false positive rate of 39.71% and correct index of 0.1997. There were 3245 positive HPV cases and 657 negative HPV cases, with sensitivity of 83.81%, false negative rate of 16.19%, specificity of 17.27%, and false positive rate of 82.72% and correct index of 0.0108. TCT+HPV was positive in 1503 cases and negative in 2399 cases, with sensitivity of 94.22%, false negative rate of 5.78%, specificity of 99.18%, false positive rate of 0.82% and correct index of 0.934. Conclusion: single HPV test and TCT test in patients with cervical cancer have high sensitivity and specificity, while TCT+HPV test has the highest sensitivity, specificity and correctness. It is helpful to improve the diagnosis rate of cervical cancer by combining the two test methods clinically.展开更多
文摘This letter exploits fundamental characteristics of a wavelet transform image to form a progressive octave-based spatial resolution. Each wavelet subband is coded based on zeroblock and quardtree partitioning ordering scheme with memory optimization technique. The method proposed in this letter is of low complexity and efficient for Internet plug-in software.
文摘Objective: to analyze the positive rate of cervical cancer by TCT and HPV in cervical cancer screening, so as to improve the clinical screening ability of cervical cancer and provide the basis for cervical cancer screening in the future. Methods: 3902 women in womens health examination in our department were selected as the research objects. In the physical examination, each research object underwent HPV test and TCT test, and then the results of TCT test, HPV test and TCT combined with HPV test were compared one by one. The diagnostic gold standard was biopsy results. Results: among the 3902 cervical cancer screeners, there were 1575 cases with CIN and 2327 cases with chronic inflammation by histopathological examination. TCT was positive in 1864 cases and negative in 2038 cases, with sensitivity of 59.68%, false negative rate of 40.32%, specificity of 60.29%, false positive rate of 39.71% and correct index of 0.1997. There were 3245 positive HPV cases and 657 negative HPV cases, with sensitivity of 83.81%, false negative rate of 16.19%, specificity of 17.27%, and false positive rate of 82.72% and correct index of 0.0108. TCT+HPV was positive in 1503 cases and negative in 2399 cases, with sensitivity of 94.22%, false negative rate of 5.78%, specificity of 99.18%, false positive rate of 0.82% and correct index of 0.934. Conclusion: single HPV test and TCT test in patients with cervical cancer have high sensitivity and specificity, while TCT+HPV test has the highest sensitivity, specificity and correctness. It is helpful to improve the diagnosis rate of cervical cancer by combining the two test methods clinically.
