Experience With Intravascular Ultrasound Imaging Of Human Atherosclerotic Arteries

J. A. Mallery; J. M. Gessert; M. Maciel; J. Tobis; J. M. Griffith; M. Berns; W. L. Henry

doi:10.1117/12.952188

8 August 1989 Experience With Intravascular Ultrasound Imaging Of Human Atherosclerotic Arteries

J. A. Mallery, J. M. Gessert, M. Maciel, J. Tobis, J. M. Griffith, M. Berns, W. L. Henry

Proceedings Volume 1068, Catheter-Based Sensing and Imaging Technology; (1989) https://doi.org/10.1117/12.952188
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Normal human arteries have a well-defined structure on intravascular images. The intima appears very thin and is most likely represented by a bright reflection arising from the internal elastic lamina. The smooth muscle tunica media is echo-lucent on the ultrasound image and appears as a dark band separating the intima from the adventitia. The adventitia is a brightly reflective layer of variable thickness. The thickness of the intima, and therefore of the atherosclerotic plaque can be accurately measured from the ultrasound images and correlates well with histology. Calcification within the wall of arteries is seen as bright echo reflection with shadowing of the peripheral wall. Fibrotic regions are highly reflective but do not shadow. Necrotic liquid regions within advanced atherosclerotic plaques are seen on ultrasound images as large lucent zones surrounded by echogenic tissue. Imaging can be performed before and after interventional procedures, such as laser angioplasty, balloon angioplasty and atherectomy. Intravascular ultrasound appears to provide an imaging modality for identifying the histologic characteristics of diseased arteries and for quantifying plaque thickness. It might be possible to perform such quantification to evaluate the results of interventional procedures.

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J. A. Mallery, J. M. Gessert, M. Maciel, J. Tobis, J. M. Griffith, M. Berns, and W. L. Henry "Experience With Intravascular Ultrasound Imaging Of Human Atherosclerotic Arteries", Proc. SPIE 1068, Catheter-Based Sensing and Imaging Technology, (8 August 1989); https://doi.org/10.1117/12.952188

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KEYWORDS

Arteries

Ultrasonography

Intravascular ultrasound

Calcium

Tissues

Image segmentation

Reflectivity

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