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Article Dans Une Revue Frontiers in Physics Année : 2022

Editorial: Innovative developments in multi-modality elastography

Résumé

At the crossroads between biomechanics, medical imaging and wave physics, elastography has been widely developed over the last 30 years. These innovations go hand in hand with the tremendous expansion of knowledge and technological leaps medical imaging has undergone in the past decades. Whatever the modality, elastography relies on three key steps: 1) biological soft tissue is stressed; 2) the resulting displacement, strain or strain rate fields are encoded on images; 3) mechanical property maps are reconstructed from the previously encoded fields. Since the initial proposal of static elastography [1], numerous static [2,3], strain [4-7] and dynamic shear wave [8] imaging methods have emerged. Today, the most widely deployed, dynamic methods include vibro-acoustography [9], Acoustic Radiation Force Impulse (ARFI) [10-12], Transient Elastography (TE) [13-15], Shear Wave Elasticity Imaging (SWEI) [8,16], MRI Elastography (MRE) [17,18] and Optical Coherence Elastography (OCE) [19,20]. Reference is made here to some of the main founding studies of these different approaches, many of which have been widely extended subsequently. Each of these methods has its own advantages and disadvantages with respect to the application to which they are dedicated, and it is important to emphasize their complementarity. For example, MRE methods, even if more complex to implement, allow to obtain measurements with a contrast and an attenuation independent of the penetrated tissues when using ultrasonic or optical methods which, for their part, provide a much more "real-time" information. These aspects have been widely compared in the past in comparative studies and literature reviews [21,22]. However, and as it appears later via the different articles presented in this topic, the overlapping of these different methods
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Dates et versions

hal-03820882 , version 1 (19-10-2022)

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Simon Chatelin, Javier Brum, Philippe Garteiser, Jing Guo, Najat Salameh, et al.. Editorial: Innovative developments in multi-modality elastography. Frontiers in Physics, 2022, 10, pp.1055508. ⟨10.3389/fphy.2022.1055508⟩. ⟨hal-03820882⟩
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