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Fast cardiac magnetic resonance imag...

Herzka, Daniel Alfredo.

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Fast cardiac magnetic resonance imaging: Improvements in efficiency and resolution for the measurement of cardiac function.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fast cardiac magnetic resonance imaging: Improvements in efficiency and resolution for the measurement of cardiac function./
作者:	Herzka, Daniel Alfredo.
面頁冊數:	224 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1971.
Contained By:	Dissertation Abstracts International65-04B.
標題:	Engineering, Biomedical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3130698
ISBN:	049677946X

Fast cardiac magnetic resonance imaging: Improvements in efficiency and resolution for the measurement of cardiac function.
Herzka, Daniel Alfredo.

Fast cardiac magnetic resonance imaging: Improvements in efficiency and resolution for the measurement of cardiac function. - 224 p.

Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1971.

Thesis (Ph.D.)--The Johns Hopkins University, 2004.

Cardiovascular disease kills more people than the other top five causes of death combined. The aging of the population will undoubtedly result in an increase in the incidence of chronic cardiovascular disease. Cardiovascular magnetic resonance imaging (MRI) has grown in the last 20 years due to its ability to non-invasively study cardiac function and its potential as a diagnostic tool. As computational capacity, high field clinical magnets and gradient hardware improved, the role of cardiac MR expanded in proportion. In particular, cardiovascular MRI of heart has become the gold standard for the measurement of cardiac function in terms of ventricular volumes, ejection fractions and cardiac mass. However, it is still limited with respect to other imaging modalities in terms of achievable resolutions and signal-to-noise ratios (SNR). This work attempts to further develop cardiac MRI as a tool for the study of cardiac function by developing and implementing new techniques to increase the achievable SNR or improve on current capabilities in terms of spatial and temporal resolution through the design of more efficient data acquisition schemes. Most of the techniques developed are based on the use of a re-discovered imaging sequence, steady-state free precession (SSFP) imaging. The combination of SSFP with the presented techniques, as well as with myocardial tagging, enabled the development of an imaging sequence for the measurement of regional and global cardiac function within a single heartbeat. The technique is presented and validated by the measurement of myocardial strains during a Valsalva maneuver.

ISBN: 049677946XSubjects--Topical Terms:

1017684
Engineering, Biomedical.

Fast cardiac magnetic resonance imaging: Improvements in efficiency and resolution for the measurement of cardiac function.
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520 $a Cardiovascular disease kills more people than the other top five causes of death combined. The aging of the population will undoubtedly result in an increase in the incidence of chronic cardiovascular disease. Cardiovascular magnetic resonance imaging (MRI) has grown in the last 20 years due to its ability to non-invasively study cardiac function and its potential as a diagnostic tool. As computational capacity, high field clinical magnets and gradient hardware improved, the role of cardiac MR expanded in proportion. In particular, cardiovascular MRI of heart has become the gold standard for the measurement of cardiac function in terms of ventricular volumes, ejection fractions and cardiac mass. However, it is still limited with respect to other imaging modalities in terms of achievable resolutions and signal-to-noise ratios (SNR). This work attempts to further develop cardiac MRI as a tool for the study of cardiac function by developing and implementing new techniques to increase the achievable SNR or improve on current capabilities in terms of spatial and temporal resolution through the design of more efficient data acquisition schemes. Most of the techniques developed are based on the use of a re-discovered imaging sequence, steady-state free precession (SSFP) imaging. The combination of SSFP with the presented techniques, as well as with myocardial tagging, enabled the development of an imaging sequence for the measurement of regional and global cardiac function within a single heartbeat. The technique is presented and validated by the measurement of myocardial strains during a Valsalva maneuver.
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