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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: J Diagn Med Sonogr. 2017 Dec 19;34(3):161–168. doi: 10.1177/8756479317747226

Figure 4.

Figure 4

Sonographic image and corresponding grayscale analysis of the arterial wall. Panel A, demonstrates the normalized and standardized B-mode image and associated tracing of the far wall of a common carotid artery for GSM. This artery is more echolucent. Panel B, demonstrates the normalized and standardized B-mode image and associated tracing of the far wall of a common carotid artery for GSM. This artery is representative of the mean GSM value of the study cohort. Panel C, demonstrates the normalized and standardized B-mode image and associated tracing of the far wall of a carotid artery for GSM. This artery is less echolucent. Image colorization (10 contours) depicts the far wall of a common carotid artery based on the local GSM value. Values of 0-25 units are displayed as black, 26-50 as blue, 51-75 as green, 76-100 as yellow, 101-125 as orange, and 126-255 as red40.