Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407398
B. Ahmadi, R. Aimrfattahi, Ehsan Negahbani, M. Mansouri, Mina Taheri
This paper proposes a combined method including adaptive segmentation and time-series Shannon entropy of electroencephalograms (EEG) to monitor depth of anesthesia (DOA). The entropy of a single channel EEG was computed through various methods of quantization. These methods are different in number of bins associated to the whole range of amplitude. The EEG data was captured in both ICU and operating room and different anesthetic drugs, including propofol and isoflurane were used. Due to the non-stationary nature of EEG signal, adaptive segmentation methods seem to have better results. Our adaptive windowing methods consist of variance and auto correlation (ACF) based methods. We have compared the results of fixed and adaptive windowing in different methods of calculating entropy in order to estimate DOA. Coefficient of determination (R ) was used as a measure of correlation between the predictors and BIS index to evaluate our proposed methods. The results show that entropy decreases with decreasing DOA. In ICU, our proposed method reveals better performance than previous works. In both ICU and operating room, the results indicate the superiority of our method, especially applying adaptive segmentation. The mixture of adaptive windowing methods with different methods of calculating entropy would result in an outstanding performance.
{"title":"Comparison of Adaptive and Fixed Segmentation in Different Calculation Methods of Electroencephalogram Time-series Entropy for Estimating Depth of Anesthesia","authors":"B. Ahmadi, R. Aimrfattahi, Ehsan Negahbani, M. Mansouri, Mina Taheri","doi":"10.1109/ITAB.2007.4407398","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407398","url":null,"abstract":"This paper proposes a combined method including adaptive segmentation and time-series Shannon entropy of electroencephalograms (EEG) to monitor depth of anesthesia (DOA). The entropy of a single channel EEG was computed through various methods of quantization. These methods are different in number of bins associated to the whole range of amplitude. The EEG data was captured in both ICU and operating room and different anesthetic drugs, including propofol and isoflurane were used. Due to the non-stationary nature of EEG signal, adaptive segmentation methods seem to have better results. Our adaptive windowing methods consist of variance and auto correlation (ACF) based methods. We have compared the results of fixed and adaptive windowing in different methods of calculating entropy in order to estimate DOA. Coefficient of determination (R ) was used as a measure of correlation between the predictors and BIS index to evaluate our proposed methods. The results show that entropy decreases with decreasing DOA. In ICU, our proposed method reveals better performance than previous works. In both ICU and operating room, the results indicate the superiority of our method, especially applying adaptive segmentation. The mixture of adaptive windowing methods with different methods of calculating entropy would result in an outstanding performance.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122291800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407400
S. Ravanshadi, M. Jahed
Over the last two decades, mathematical modeling has become a popular tool in study of blood coagulation. This paper describes the coagulation pathway and presents a mathematical model for the generation of blood clot in human vasculature. Parameters of interest in this study include procoagulants and anticoagulants whose activity may be enhanced by various activator enzymes. The process of human blood clotting involves a complex interaction between these parameters and continuous time and state processes. In this work, we propose to model these highly inter-relational processes by a set of nonlinear chemical rate equations. We have modeled this process as a dynamical system, as chemical reaction of blood clot is similar to the Michaclis-Mcntcn kinetics. Simulation result reveals that for zero concentration of certain activators, blood clot can't embark and for positive concentration of those activators, the clot is formed. In our analytical model some particular anticoagulants are studied and their role in the clotting process is evaluated. Furthermore simulation results for low concentrations of APC, the active protein C, which acts as a anticoagulant, states formation of blood clot.
{"title":"Mathematical Modeling of Human Blood Clotting Formation","authors":"S. Ravanshadi, M. Jahed","doi":"10.1109/ITAB.2007.4407400","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407400","url":null,"abstract":"Over the last two decades, mathematical modeling has become a popular tool in study of blood coagulation. This paper describes the coagulation pathway and presents a mathematical model for the generation of blood clot in human vasculature. Parameters of interest in this study include procoagulants and anticoagulants whose activity may be enhanced by various activator enzymes. The process of human blood clotting involves a complex interaction between these parameters and continuous time and state processes. In this work, we propose to model these highly inter-relational processes by a set of nonlinear chemical rate equations. We have modeled this process as a dynamical system, as chemical reaction of blood clot is similar to the Michaclis-Mcntcn kinetics. Simulation result reveals that for zero concentration of certain activators, blood clot can't embark and for positive concentration of those activators, the clot is formed. In our analytical model some particular anticoagulants are studied and their role in the clotting process is evaluated. Furthermore simulation results for low concentrations of APC, the active protein C, which acts as a anticoagulant, states formation of blood clot.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127811249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407412
D. Watanabe, K. Yamashita, T. Kiryu
We embedded control function as well as monitoring physical activity in a wearable unit for controlling several types of powered health promotion machines on standalone and on-site. The unit consisted of a Linux board with an on-board A-D converter that measures 5 channels of biosignals including surface EMG and ECG. The interfaces were wired and wireless LAN ports for connecting networks. Besides, Web-server and a LCD unit were provided for browsing the results at any place. We applied the unit for controlling the cycle ergometer workload in the room and the power-assisted bicycle in the field for live subjects, while monitoring physical activity and estimating fatigue by a fuzzy inference. The results showed a possibility for control of powered health promotion machines by heart rate and muscle activity on-site.
{"title":"Development of a Ubiquitous Wearable Unit and its Application to Cycling Exercise","authors":"D. Watanabe, K. Yamashita, T. Kiryu","doi":"10.1109/ITAB.2007.4407412","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407412","url":null,"abstract":"We embedded control function as well as monitoring physical activity in a wearable unit for controlling several types of powered health promotion machines on standalone and on-site. The unit consisted of a Linux board with an on-board A-D converter that measures 5 channels of biosignals including surface EMG and ECG. The interfaces were wired and wireless LAN ports for connecting networks. Besides, Web-server and a LCD unit were provided for browsing the results at any place. We applied the unit for controlling the cycle ergometer workload in the room and the power-assisted bicycle in the field for live subjects, while monitoring physical activity and estimating fatigue by a fuzzy inference. The results showed a possibility for control of powered health promotion machines by heart rate and muscle activity on-site.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126370138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407394
Y. Kato, M. Ichinoseki, T. Kamada, A. Kumagai, K. Onuma, R. Himeno
The chemical composition and tissue structure of meats determine the quality of food products. Nondestructive techniques such as magnetic resonance imaging (MRI) are ideal for monitoring meat quality. Meat organization influences the intensity and phase of MR images. In this study, the influence of meat fat content and tenderness on the intensity of MR images was evaluated using the following samples: chicken breast (CB), chicken thigh (CT), porcine fillet (PF), porcine thigh (PT), and porcine stomach (PS). Considerable differences in fat content and tenderness - parameters influenced by intramuscular connective tissue - were observed in these meat samples. Significant differences in mean image intensity were observed between the CB and CT samples of chicken meat. Further, with the exception of the PS sample, significant differences in mean intensity were also observed between the porcine meat samples. On the contrary, no significant differences in the standard deviation and standard error of the mean of image intensity were produced by meat organization. These results indicate that mean intensity may be a useful parameter to evaluate meat organization.
{"title":"Influences of Meat Organization on Intensity Distribution in Magnetic Resonance Images","authors":"Y. Kato, M. Ichinoseki, T. Kamada, A. Kumagai, K. Onuma, R. Himeno","doi":"10.1109/ITAB.2007.4407394","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407394","url":null,"abstract":"The chemical composition and tissue structure of meats determine the quality of food products. Nondestructive techniques such as magnetic resonance imaging (MRI) are ideal for monitoring meat quality. Meat organization influences the intensity and phase of MR images. In this study, the influence of meat fat content and tenderness on the intensity of MR images was evaluated using the following samples: chicken breast (CB), chicken thigh (CT), porcine fillet (PF), porcine thigh (PT), and porcine stomach (PS). Considerable differences in fat content and tenderness - parameters influenced by intramuscular connective tissue - were observed in these meat samples. Significant differences in mean image intensity were observed between the CB and CT samples of chicken meat. Further, with the exception of the PS sample, significant differences in mean intensity were also observed between the porcine meat samples. On the contrary, no significant differences in the standard deviation and standard error of the mean of image intensity were produced by meat organization. These results indicate that mean intensity may be a useful parameter to evaluate meat organization.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128956061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407370
Wong Kiing-Ing
Due to the recent active research activities in the area of wireless sensor networks (WSN), the development and realization of a light-weighted, low-cost and wireless electrocardiogram (ECG) monitor has become feasible. In this paper, we propose an ECG monitor design based on a commercially available WSN device. The device utilizes 868 MHz ISM license free frequency band and operates on TinyOS operating system. The ECG signal from patients is detected and radioed to a PC for monitoring. This paper validates our approach and suggests the feasibility of future enhancements.
{"title":"A light-weighted, Low-cost and Wireless ECG Monitor Design based on TinyOS Operating System","authors":"Wong Kiing-Ing","doi":"10.1109/ITAB.2007.4407370","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407370","url":null,"abstract":"Due to the recent active research activities in the area of wireless sensor networks (WSN), the development and realization of a light-weighted, low-cost and wireless electrocardiogram (ECG) monitor has become feasible. In this paper, we propose an ECG monitor design based on a commercially available WSN device. The device utilizes 868 MHz ISM license free frequency band and operates on TinyOS operating system. The ECG signal from patients is detected and radioed to a PC for monitoring. This paper validates our approach and suggests the feasibility of future enhancements.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121504895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407399
M. Yarita, N. Kobayashi, S. Takeda, Toshiyo Tamura
An algorithm is proposed to interpolate the pulse wave during the measurement of SpO2 by using Kalman filter identification of autoregression (AR) coefficients, Kalman filter interpolation, and a fixed-interval smoother. This combined algorithm picks up the pulse rate smoothly from pulse waves contaminated by two specific artifact types: respiration artifact and sporadic body movement artifact.
{"title":"Compensation for two specific types of artifact in pulse wave using a Kalman filter","authors":"M. Yarita, N. Kobayashi, S. Takeda, Toshiyo Tamura","doi":"10.1109/ITAB.2007.4407399","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407399","url":null,"abstract":"An algorithm is proposed to interpolate the pulse wave during the measurement of SpO2 by using Kalman filter identification of autoregression (AR) coefficients, Kalman filter interpolation, and a fixed-interval smoother. This combined algorithm picks up the pulse rate smoothly from pulse waves contaminated by two specific artifact types: respiration artifact and sporadic body movement artifact.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131210466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407378
Yun Seong Kim, Haet Bit Lee, Jung Soo Kim, H. Baek, M. S. Ryu, K. Park
In the military environment there are many harsh working conditions compare to the normal working place. Many activity can be tiring and compromise a soldier's condition and prove fatal, not only to the individual, but to the team and their operation as well. The same principles apply to the work of Are fighters and miners. Many problems in their work places are caused by worker's mistake due to their fatigue or unconsciousness behavior like a drowsiness. So to monitor and feedback to them is very essential. Despite the importance of the monitoring the health condition, device for this purpose was seldom developed yet. In the former study we proposed helmet based system for measuring biomedical signals. In this paper detecting method for ECG, EOG will be presented using helmet based system and their differences between normal and drowsiness status.
{"title":"ECG, EOG detection from helmet based system","authors":"Yun Seong Kim, Haet Bit Lee, Jung Soo Kim, H. Baek, M. S. Ryu, K. Park","doi":"10.1109/ITAB.2007.4407378","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407378","url":null,"abstract":"In the military environment there are many harsh working conditions compare to the normal working place. Many activity can be tiring and compromise a soldier's condition and prove fatal, not only to the individual, but to the team and their operation as well. The same principles apply to the work of Are fighters and miners. Many problems in their work places are caused by worker's mistake due to their fatigue or unconsciousness behavior like a drowsiness. So to monitor and feedback to them is very essential. Despite the importance of the monitoring the health condition, device for this purpose was seldom developed yet. In the former study we proposed helmet based system for measuring biomedical signals. In this paper detecting method for ECG, EOG will be presented using helmet based system and their differences between normal and drowsiness status.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115615809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407358
Y. Noh, M. Segawa, A. Shimomura, H. Ishii, J. Solis, K. Hatake, A. Takanishi
Airway management is provided by emergency medical technicians or anesthetists in order to save unconscious patients under emergency situations. Even though airway management is basic skill, there may be some difficulties while performing airway management to patients with abnormalities. Therefore, it is important to train medical students to perform such a task on patients with abnormalities. Recently, many companies are developing airway training mannequins designed to reproduce the conditions of the airway management procedure. However, such training devices cannot provide any quantitative information of the training progress so that few amount of feedback can be provided to trainees. For this purpose, we have proposed the development of an airway management training system which has been designed to embed sensors into a conventional mannequin. As a result, we have developed the Waseda-Kyotokagaku airway No. 1 (WKA-1). In this paper, the WKA-1 was used to reproduce the airway management on patients with abnormalities on jaw opening. For this purpose, we have added an array of springs to simulate those abnormalities. Then, we proposed an experiment to detect the differences on performances among doctors (anesthetist) while performing the airway management in patients with and without abnormalities on the jaw opening. Both cases were analyzed quantitatively by using the functionalities of the WKA-1. From the experimental results, we could find a statistically significant difference between both cases.
{"title":"Reproducing Difficulties of Airway Management on Patients with Restricted Mouth Opening using the WKA-1","authors":"Y. Noh, M. Segawa, A. Shimomura, H. Ishii, J. Solis, K. Hatake, A. Takanishi","doi":"10.1109/ITAB.2007.4407358","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407358","url":null,"abstract":"Airway management is provided by emergency medical technicians or anesthetists in order to save unconscious patients under emergency situations. Even though airway management is basic skill, there may be some difficulties while performing airway management to patients with abnormalities. Therefore, it is important to train medical students to perform such a task on patients with abnormalities. Recently, many companies are developing airway training mannequins designed to reproduce the conditions of the airway management procedure. However, such training devices cannot provide any quantitative information of the training progress so that few amount of feedback can be provided to trainees. For this purpose, we have proposed the development of an airway management training system which has been designed to embed sensors into a conventional mannequin. As a result, we have developed the Waseda-Kyotokagaku airway No. 1 (WKA-1). In this paper, the WKA-1 was used to reproduce the airway management on patients with abnormalities on jaw opening. For this purpose, we have added an array of springs to simulate those abnormalities. Then, we proposed an experiment to detect the differences on performances among doctors (anesthetist) while performing the airway management in patients with and without abnormalities on the jaw opening. Both cases were analyzed quantitatively by using the functionalities of the WKA-1. From the experimental results, we could find a statistically significant difference between both cases.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130057278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-12-26DOI: 10.1109/ITAB.2007.4407352
M. Kinoshita, H. Aoki, K. Koshiji
We carried out the numerical analysis in order to examine fat thickness estimation for applying the electrical bio-impedance tomography. Recently, the increase of obese subjects becomes a large social problem. For obese prevention, it is said that health care by appropriate exercise is necessary. For example, it seems to be useful for health care by knowing adhesion condition of the subcutaneous fat in the femoral region, because the metabolism rate and the exercise ability can be grasped. Electrical bio-Impedance Tomography is one of the cheapest ways in order to realize a tomography. We can obtain a conductivity distribution in human body. EIT utilizes relationship between the injection current and surface potential distribution depending on the conductivity difference. Then, we carried out the examination by finite difference method in order to establish the technique for estimating the subcutaneous fat thickness in the femoral region by application of the electrical bio-impedance tomography.
{"title":"Basic Study on Fat Thickness Estimation Using Electrical Bio-Impedance Tomography","authors":"M. Kinoshita, H. Aoki, K. Koshiji","doi":"10.1109/ITAB.2007.4407352","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407352","url":null,"abstract":"We carried out the numerical analysis in order to examine fat thickness estimation for applying the electrical bio-impedance tomography. Recently, the increase of obese subjects becomes a large social problem. For obese prevention, it is said that health care by appropriate exercise is necessary. For example, it seems to be useful for health care by knowing adhesion condition of the subcutaneous fat in the femoral region, because the metabolism rate and the exercise ability can be grasped. Electrical bio-Impedance Tomography is one of the cheapest ways in order to realize a tomography. We can obtain a conductivity distribution in human body. EIT utilizes relationship between the injection current and surface potential distribution depending on the conductivity difference. Then, we carried out the examination by finite difference method in order to establish the technique for estimating the subcutaneous fat thickness in the femoral region by application of the electrical bio-impedance tomography.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129178775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a virtual breast plastic surgery planning method is proposed, which reconstructs the breast after excision for certain diseases such as cancer. In order to achieve a rational result, we calculate shape, area, volume and depth of the skin and muscle for the reconstruction, based on the other healthy breast. The steps are as follows: 1) input breast's MRI data of patient; 2) get the healthy breast using balloon segmentation algorithm and get triangle mesh on breast surface; 3) flatten the triangulated skin of breast using deformable model to attain the shape and volume of the flap for breast reconstruction; 4) calculate the approximate curve shape of flap. Other methods such as mesh smoothing and cutting of triangulated surface are also introduced. The doctors validation and evaluation process are also provided to ensure the robust and stable result of virtual surgery planning.
{"title":"Virtual Surgery Planning of Breast Reconstruction Using Deformation Modeling and Curve Shape Approximation","authors":"Pengfei Huang, Lixu Gu, Jiarong Yan, Hua Xu, Jiasheng Dong","doi":"10.1109/ITAB.2007.4407361","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407361","url":null,"abstract":"In this paper, a virtual breast plastic surgery planning method is proposed, which reconstructs the breast after excision for certain diseases such as cancer. In order to achieve a rational result, we calculate shape, area, volume and depth of the skin and muscle for the reconstruction, based on the other healthy breast. The steps are as follows: 1) input breast's MRI data of patient; 2) get the healthy breast using balloon segmentation algorithm and get triangle mesh on breast surface; 3) flatten the triangulated skin of breast using deformable model to attain the shape and volume of the flap for breast reconstruction; 4) calculate the approximate curve shape of flap. Other methods such as mesh smoothing and cutting of triangulated surface are also introduced. The doctors validation and evaluation process are also provided to ensure the robust and stable result of virtual surgery planning.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127353155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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