1872 Ultrasonic tissue characterization by means of cyclic variation of integrated backscatter in patients with aortic stenosis

2003 ◽  
Vol 24 (5) ◽  
pp. 359
Author(s):  
M FIJAKOWSKI
Keyword(s):  
Aortic Stenosis ◽  
Tissue Characterization ◽  
Cyclic Variation ◽  
Integrated Backscatter

Automated Determination of the Magnitude and Time Delay (“Phase”) of the Cardiac Cycle Dependent Variation of Myocardial Ultrasonic Integrated Backscatter

1989 ◽  
Vol 11 (4) ◽  
pp. 245-259 ◽  
Author(s):  
G. A. Mohr ◽  
Zvi Vered ◽  
Benico Barzilai ◽  
Julio E. Perez ◽  
Burton E. Sobel ◽  
...  
Keyword(s):  
Time Delay ◽  
Tissue Characterization ◽  
Cardiac Cycle ◽  
Quantitative Description ◽  
Automated Analysis ◽  
Cyclic Variation ◽  
Integrated Backscatter ◽  
Automated Method ◽  
Cycle Dependent

An algorithm for quantitative description of cardiac cycle dependent variation of integrated backscatter (cyclic variation) has been developed and is shown to be suitable for analysis of nonsinusoidal data typical of ultrasonic tissue characterization measurements from myocardium in vivo. The algorithm produces estimates of the magnitude of variation and of the time delay relative to the the electrocardiographically recorded QRS-complex. To validate the algorithm, 246 integrated backscatter measurements were analyzed both manually and by the automated method. The magnitude and time delay estimates from the two methods correlated closely. With a separate set of data, the algorithm produced reasonable descriptions of the cyclic variation for 89 of 101 integrated backscatter measurements. Only modest computational power is required for effective implementation of this algorithm, facilitating inclusion of online automated analysis capabilities in quantitative ultrasonic tissue characterization systems.

Ultrasonic tissue characterization with integrated backscatter during inotropic stimulation

2000 ◽  
Vol 26 (9) ◽  
pp. 1413-1420 ◽  
Author(s):  
Chau-Chung Wu ◽  
Yen-Bin Liu ◽  
Lung-Chung Lin ◽  
Yi-Lwun Ho ◽  
Chiau-Suong Liau ◽  
...  
Keyword(s):  
Tissue Characterization ◽  
Integrated Backscatter ◽  
Inotropic Stimulation

Myocardial Tissue Characterization and Aortic Stenosis

2010 ◽  
Vol 23 (10) ◽  
pp. 1067-1070 ◽  
Author(s):  
Vitantonio Di Bello ◽  
Cuono Cucco ◽  
Cristina Giannini ◽  
Maria Grazia Delle Donne
Keyword(s):  
Aortic Stenosis ◽  
Tissue Characterization ◽  
Myocardial Tissue ◽  
Myocardial Tissue Characterization

Validation of transthoracic myocardial ultrasonic tissue characterization: comparison of transthoracic and open-chest measurements of integrated backscatter

1995 ◽  
Vol 21 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Johji Naito ◽  
Tohru Masuyama ◽  
Toshiaki Mano ◽  
Kazuhiro Yamamoto ◽  
Yasuji Doi ◽  
...  
Keyword(s):  
Tissue Characterization ◽  
Integrated Backscatter ◽  
Open Chest
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