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Year Number of Results
1912 1
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1920 1
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1927 1
1946 2
1947 20
1948 120
1949 11
1950 60
1951 51
1952 55
1953 51
1954 52
1955 45
1956 6
1957 47
1958 53
1959 62
1960 62
1961 71
1962 73
1963 142
1964 159
1965 112
1966 78
1967 80
1968 75
1969 80
1970 84
1971 67
1972 57
1973 58
1974 63
1975 145
1976 147
1977 174
1978 141
1979 162
1980 216
1981 216
1982 263
1983 283
1984 366
1985 462
1986 516
1987 521
1988 545
1989 785
1990 803
1991 894
1992 966
1993 1094
1994 1199
1995 1201
1996 1298
1997 1399
1998 1447
1999 1618
2000 1532
2001 1501
2002 1457
2003 1441
2004 1588
2005 1676
2006 1868
2007 1800
2008 1960
2009 1975
2010 2088
2011 2235
2012 2278
2013 2457
2014 2605
2015 2720
2016 2710
2017 2835
2018 2927
2019 2873
2020 3042
2021 3487
2022 3389
2023 3217
2024 1485

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67,564 results

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Page 1
Gradient echo imaging.
Markl M, Leupold J. Markl M, et al. J Magn Reson Imaging. 2012 Jun;35(6):1274-89. doi: 10.1002/jmri.23638. J Magn Reson Imaging. 2012. PMID: 22588993 Review.
This is due to the different use of sequence timing and basic sequence building blocks such as spoiler gradients or specific radiofrequency (RF) pulse phase patterns. In this article the basic principles of gradient echo formation compared to spin echo imaging are r …
This is due to the different use of sequence timing and basic sequence building blocks such as spoiler gradients or specific radiofrequency …
3D Echo in Routine Clinical Practice - State of the Art in 2019.
Poon J, Leung JT, Leung DY. Poon J, et al. Heart Lung Circ. 2019 Sep;28(9):1400-1410. doi: 10.1016/j.hlc.2019.04.003. Epub 2019 Apr 19. Heart Lung Circ. 2019. PMID: 31047786 Review.
Three-dimensional (3D) echo has been around for almost five decades. Recent advances in ultrasound, electronic and computing technologies have moved 3D echo from the research environment to everyday clinical practice. ...In routine clinical practice in 2019, we reco …
Three-dimensional (3D) echo has been around for almost five decades. Recent advances in ultrasound, electronic and computing technolo …
Exercise induced changes in echo intensity within the muscle: a brief review.
Wong V, Spitz RW, Bell ZW, Viana RB, Chatakondi RN, Abe T, Loenneke JP. Wong V, et al. J Ultrasound. 2020 Dec;23(4):457-472. doi: 10.1007/s40477-019-00424-y. Epub 2020 Jan 10. J Ultrasound. 2020. PMID: 31925731 Free PMC article. Review.
Although there has been an increased interest in reporting changes in echo intensity in response to exercise, little consensus exists as to what a change in echo intensity represents physiologically. ...For example, echo intensity increases in conjunction wit …
Although there has been an increased interest in reporting changes in echo intensity in response to exercise, little consensus exists …
Echo in complex networks.
Phogat R, Sinha S, Parmananda P. Phogat R, et al. Phys Rev E. 2020 Feb;101(2-1):022216. doi: 10.1103/PhysRevE.101.022216. Phys Rev E. 2020. PMID: 32168634
Another subtle feature arises for intermediate randomness, where the system exhibits a nonmonotonic dependence of the echo size on average degree. The echo size was found to be minimum at an intermediate value of the average degree. Lastly we consider the influence …
Another subtle feature arises for intermediate randomness, where the system exhibits a nonmonotonic dependence of the echo size on av …
Direction-of-Arrival Estimation Methods in Interferometric Echo Sounding.
Grall P, Kochanska I, Marszal J. Grall P, et al. Sensors (Basel). 2020 Jun 23;20(12):3556. doi: 10.3390/s20123556. Sensors (Basel). 2020. PMID: 32585964 Free PMC article. Review.
Nowadays, there are two leading sea sounding technologies: the multibeam echo sounder and the multiphase echo sounder (also known as phase-difference side scan sonar or bathymetric side scan sonar). ...The article focuses on modifications to the interferometric sona …
Nowadays, there are two leading sea sounding technologies: the multibeam echo sounder and the multiphase echo sounder (also kn …
Towards perfect NMR: Spin-echo versus perfect-echo building blocks.
Parella T. Parella T. Magn Reson Chem. 2019 Jan;57(1):13-29. doi: 10.1002/mrc.4776. Epub 2018 Aug 1. Magn Reson Chem. 2019. PMID: 29927497 Review.
The concept of "perfect NMR" includes the design of robust pulse sequences that allow an investigator to obtain undistorted pure in-phase signals, with pure absorption lineshapes that are free of phase anomalies derived from undesired J modulations. Here, alternative NMR building …
The concept of "perfect NMR" includes the design of robust pulse sequences that allow an investigator to obtain undistorted pure in-phase si …
Photon/spin echo in a Fabry-Perot cavity.
Moiseev SA, Urmancheev RV. Moiseev SA, et al. Opt Lett. 2022 Aug 1;47(15):3812-3815. doi: 10.1364/OL.465434. Opt Lett. 2022. PMID: 35913321
The pulse area theorem is a well-known versatile analytical tool for capturing the general nonlinear nature of light propagation in a two-level medium. Here we derive the pulse area theorem for the photon/spin echo signal generated in a one-side cavity. The obtained analyt …
The pulse area theorem is a well-known versatile analytical tool for capturing the general nonlinear nature of light propagation in a two-le …
Echo-SyncNet: Self-Supervised Cardiac View Synchronization in Echocardiography.
Dezaki FT, Luong C, Ginsberg T, Rohling R, Gin K, Abolmaesumi P, Tsang T. Dezaki FT, et al. IEEE Trans Med Imaging. 2021 Aug;40(8):2092-2104. doi: 10.1109/TMI.2021.3071951. Epub 2021 Jul 30. IEEE Trans Med Imaging. 2021. PMID: 33835916
In echocardiography (echo), an electrocardiogram (ECG) is conventionally used to temporally align different cardiac views for assessing critical measurements. ...Project repository: github.com/fatemehtd/Echo-SyncNet>....
In echocardiography (echo), an electrocardiogram (ECG) is conventionally used to temporally align different cardiac views for assessi …
Echo Memory-Augmented Network for time series classification.
Ma Q, Zheng Z, Zhuang W, Chen E, Wei J, Wang J. Ma Q, et al. Neural Netw. 2021 Jan;133:177-192. doi: 10.1016/j.neunet.2020.10.015. Epub 2020 Nov 7. Neural Netw. 2021. PMID: 33220642
First, the time series is fed into the reservoir of an ESN to produce the echo states, which are all collected into an echo memory matrix along with the time steps. After that, we design an echo memory-augmented mechanism employing the sparse learnable attent …
First, the time series is fed into the reservoir of an ESN to produce the echo states, which are all collected into an echo me …
Spin echo magnetic resonance imaging.
Jung BA, Weigel M. Jung BA, et al. J Magn Reson Imaging. 2013 Apr;37(4):805-17. doi: 10.1002/jmri.24068. J Magn Reson Imaging. 2013. PMID: 23526758 Review.
The spin echo sequence is a fundamental pulse sequence in MRI. Many of today's applications in routine clinical use are based on this elementary sequence. ...The basic imaging parameters repetition time (TR) and echo time (TE) and their influence on the image contra …
The spin echo sequence is a fundamental pulse sequence in MRI. Many of today's applications in routine clinical use are based on this …
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