Abstract: Techniques are provided for automatically detecting cardiac motion using contrast markers. The contrast markers can be located in images generated by an external imaging device. The contrast markers can be used for locating regions of interest in a heart and their relative motion. The techniques for determining cardiac motion are objective, automated, and reproducible from session to session. Techniques are also provided for automatically analyzing cardiac motion using contrast markers and outputting data or commands that can be used to facilitate or to direct cardiac therapies. The cardiac motion data can be provided in a therapeutically useful output format, such as waveforms, text, and graphics. As another example, a feedback system can analyze the cardiac motion data and can generate feedback commands that cause a cardiac motion regulating device to automatically adjust heart motion in real-time.

Abstract: Devices and methods for evaluating motion of a tissue location, such as cardiac tissue location, e.g., heart wall, are provided. Devices employed in the subject methods are fiberoptic tissue motion sensors that include a light guide having a reflective element at its distal end and a light emitter/detector at its proximal end. In embodiments of the methods, a signal obtained from reflective element stably associated with the tissue location of interest is employed to evaluate movement of the tissue location. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.