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_______ as largely replaced tissue Doppler imaging for determination of myocardial strain.
Speckle tracking
T/F: when using Tissue Doppler, sonographer must turn ON wall filter and turn gain up.
False (turn off WF and gain down)
T/F: Speckle Tracking is largely angle dependent.
True
T/F: strain is preload dependent.
True
What is the most commonly used strain?
GLS
What is normal longitudinal strain?
-20%
What does negative strain imply?
Shortening of a segment (contraction)
What is strain?
It is a measure of deformation.
What is shown in this image
Reduced apical strain in apical variant in Apical Infarct
What is shown in the image?
Reduced apical strain in apical variant in HCM
what is shown in this image?
Reduced septal variant HCM
What does cherry on the top signify in strain?
Cardiac Amyloidosis
What are the approaches for 3D echo
1. Multiplane 2. Multibeat 3. Real time
What is an advantage of 3D?
Superior chamber dimensions and function...Planning and peri-operative guidance... Automated analysis.... Can image 2D with 3D TRANSDUCER.....
What is one of the common disadvantages/ artifacts of 3D ?
Stitch Artifact
(T/F) Multiplane is NOT considered real time imaging.
False. It is
What is the major difference between 2D and 3D?
Transducer (2D transducers, in which the piezoelectric crystals are arranged linearly (in a row), 3D probes, the individual elements are arranged in a rectan)