Objective:The aim of the study was to observe the characters and differences of the inner and outer parts of prostate gland, the prostatic cancer lesions in inner and outer parts of prostate glands by transrectal cont...Objective:The aim of the study was to observe the characters and differences of the inner and outer parts of prostate gland, the prostatic cancer lesions in inner and outer parts of prostate glands by transrectal contrast enhanced ultrasonography (TRCEUS) in order to provide valuable information for diagnosing of prostatic cancers. Methods: The ultrasound contrast agent was SonoVue (from Bracco Company, Italian). Instrument adopted Esaote Company Technos DU8 (transrectal ultrasonography). We observed the starting and ending times of transrectal contrast enhancement in the normal prostate inner gland group (16 cases), normal prostate outer gland group (16 cases), and the prostatic cancer lesions in inner gland group (8 cases) as well as in outer gland group (11 cases), respectively. Results: There was no significant difference in the starting time of the normal prostate glands between the inner gland and outer gland groups (P>0.05), likewise no significant difference between the cancer lesions in the inner gland and outer gland groups (P>0.05), but starting times of the cancer lesions in both groups were earlier than those of the normal prostate inner and outer glands groups (P<0.01). The ending time of enhancement was no significant difference among all groups (P>0.05). Conclusion: The earlier starting time of contrast enhancement in prostatic cancer lesions by TRCEUS has important value of distinguishing the cancer lesions from normal prostate glands. It is helpful to diagnose the prostatic cancer lesions.展开更多
A comprehensive quantification method of fatigue degree is proposed concerning subjective and objective quantifications.Using the fatigue degree test software,fatigue degree is objectively quantified by analyzing the ...A comprehensive quantification method of fatigue degree is proposed concerning subjective and objective quantifications.Using the fatigue degree test software,fatigue degree is objectively quantified by analyzing the reaction and operation abilities of drivers about traffic signals.By comparison experiment with that EEG signal based,multivariate statistical analysis and fusion identification based on BP neural network(BPNN) results show that the experimental procedure is simple and practical,and the proposed method can reveal the correlation between fatigue feature parameters and fatigue degree in theory,and also can achieve accurate and reliable quantification of fatigue degree,especially under the associated action of multiple fatigue feature parameters.展开更多
文摘Objective:The aim of the study was to observe the characters and differences of the inner and outer parts of prostate gland, the prostatic cancer lesions in inner and outer parts of prostate glands by transrectal contrast enhanced ultrasonography (TRCEUS) in order to provide valuable information for diagnosing of prostatic cancers. Methods: The ultrasound contrast agent was SonoVue (from Bracco Company, Italian). Instrument adopted Esaote Company Technos DU8 (transrectal ultrasonography). We observed the starting and ending times of transrectal contrast enhancement in the normal prostate inner gland group (16 cases), normal prostate outer gland group (16 cases), and the prostatic cancer lesions in inner gland group (8 cases) as well as in outer gland group (11 cases), respectively. Results: There was no significant difference in the starting time of the normal prostate glands between the inner gland and outer gland groups (P>0.05), likewise no significant difference between the cancer lesions in the inner gland and outer gland groups (P>0.05), but starting times of the cancer lesions in both groups were earlier than those of the normal prostate inner and outer glands groups (P<0.01). The ending time of enhancement was no significant difference among all groups (P>0.05). Conclusion: The earlier starting time of contrast enhancement in prostatic cancer lesions by TRCEUS has important value of distinguishing the cancer lesions from normal prostate glands. It is helpful to diagnose the prostatic cancer lesions.
基金Supported by the National Nature Science Foundation of China(No.61304205,61203273,61103086,41301037)the Open Funding Project of State Key Laboratory of Virtual Reality Technology and Systems,Beihang University(No.BUAA-VR-13KF-04)+1 种基金Jiangsu Ordinary University Science Research Project(No.13KJB120007)Innovation and Entrepreneurship Training Project of College Students(No.201410300153,201410300165)
文摘A comprehensive quantification method of fatigue degree is proposed concerning subjective and objective quantifications.Using the fatigue degree test software,fatigue degree is objectively quantified by analyzing the reaction and operation abilities of drivers about traffic signals.By comparison experiment with that EEG signal based,multivariate statistical analysis and fusion identification based on BP neural network(BPNN) results show that the experimental procedure is simple and practical,and the proposed method can reveal the correlation between fatigue feature parameters and fatigue degree in theory,and also can achieve accurate and reliable quantification of fatigue degree,especially under the associated action of multiple fatigue feature parameters.
