| Presentation | 2013-05-24 Myocardial motion by bi-directional DP-tracking for echocardiography Kazuhisa MURAKAMI, Wataru OHYAMA, Tetsushi WAKABAYASHI, Fumitaiak KIMURA, Kiyotsugu SEKIOKA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The echocardiogram is an essential tool for diagnosis and treatment of cardiovascular diseases. The use of echocardiograms for clinical diagnosis serves multifold advantages including noninvasiveness of diagnosis and real-time imaging. Recent technical innovations of ultrasonic diagnosis equipment require tracking a specific tissue of myocardium. An automated, computer-based objective tracking of myocardium is necessary for quantitative diagnosis. Several methods have been proposed for tracking of myocardial motion and quantitative assessment of the myocardial performance. However, speckle and noise contained in echocardiograms sometimes corrupt the tracking. To eliminate such errors and improve the tracking accuracy, we proposed new tracking algorithm that employs the dynamic programming (DP) based correlation method. The proposed method assumes the cyclic movement of left ventricular myocardium. The objective function employed in correlation tracking is optimized using DP based tracking algorithm on this assumption. Tracking problems due to the effects of noise and erroneous valve has been improved by this proposed method, a new problem has occurred in the execution time and path detection.In this study, we have achieved a more stable tracking, by not only between adjacent frames, also take into account the correlation between the initial frame and the target frame. In addition, due to the implementation of GPGPU and bi-directional DP-tracking, we reduced the computation time. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | echocardiogram / myocardial motion tracking / dynamic programming / bi-directional DP-tracking / GPGPU |
| Paper # | IE2013-16,PRMU2013-9,MI2013-9 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2013/5/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Medical Imaging (MI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Myocardial motion by bi-directional DP-tracking for echocardiography |
| Sub Title (in English) | |
| Keyword(1) | echocardiogram |
| Keyword(2) | myocardial motion tracking |
| Keyword(3) | dynamic programming |
| Keyword(4) | bi-directional DP-tracking |
| Keyword(5) | GPGPU |
| 1st Author's Name | Kazuhisa MURAKAMI |
| 1st Author's Affiliation | The Graduate School of Engineering at Mie University() |
| 2nd Author's Name | Wataru OHYAMA |
| 2nd Author's Affiliation | The Graduate School of Engineering at Mie University |
| 3rd Author's Name | Tetsushi WAKABAYASHI |
| 3rd Author's Affiliation | The Graduate School of Engineering at Mie University |
| 4th Author's Name | Fumitaiak KIMURA |
| 4th Author's Affiliation | The Graduate School of Engineering at Mie University |
| 5th Author's Name | Kiyotsugu SEKIOKA |
| 5th Author's Affiliation | Sekioka Clinic |
| Date | 2013-05-24 |
| Paper # | IE2013-16,PRMU2013-9,MI2013-9 |
| Volume (vol) | vol.113 |
| Number (no) | 64 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |