TY - JOUR
T1 - Enhancing the dynamic range of ultrasound imaging velocimetry using interleaved imaging
AU - Poelma, C
AU - Fraser, KH
PY - 2013/9/25
Y1 - 2013/9/25
N2 - In recent years, non-invasive velocity field measurement based on the correlation of ultrasound images was introduced as a promising technique for fundamental research into disease processes, as well as a diagnostic tool. A major drawback of the method is the relatively limited dynamic range when conventional echography equipment is used. We present a method by which the restriction of the maximum flow rates can be relaxed, while still retaining the full field-of-view. The method uses conventional hardware, but a novel read-out sequence that interleaves subsequent images. By varying the offset between two interleaved images, we re-introduce the inter-frame time as a parameter that can be optimized for velocimetry. The novel approach is demonstrated with data from an in vitro study of a reference flow.
AB - In recent years, non-invasive velocity field measurement based on the correlation of ultrasound images was introduced as a promising technique for fundamental research into disease processes, as well as a diagnostic tool. A major drawback of the method is the relatively limited dynamic range when conventional echography equipment is used. We present a method by which the restriction of the maximum flow rates can be relaxed, while still retaining the full field-of-view. The method uses conventional hardware, but a novel read-out sequence that interleaves subsequent images. By varying the offset between two interleaved images, we re-introduce the inter-frame time as a parameter that can be optimized for velocimetry. The novel approach is demonstrated with data from an in vitro study of a reference flow.
UR - http://dx.doi.org/10.1088/0957-0233/24/11/115701
U2 - 10.1088/0957-0233/24/11/115701
DO - 10.1088/0957-0233/24/11/115701
M3 - Article
SN - 0957-0233
VL - 24
SP - 115701
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 11
ER -