Segmentation of the carotid intima-media region in B-mode ultrasound images

Rocha, Rui; Campilho, Aurélio; Silva, Jorge; Azevedo, Elsa; Santos, Rosa

doi:10.1016/j.imavis.2009.09.017

Cited by 79 publications

(42 citation statements)

References 42 publications

(66 reference statements)

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“…Furthermore, it was shown in this study that the SA segmentation measurements for the IMT, the atherosclerotic plaque and D are very close to the M segmentation measurements (see Tables 2-5) as also reported in Ref. [6][7][8][9][10][11][12][13][14][15] .…”

Section: Discussionsupporting

confidence: 87%

“…The differences found in this study between the M and the SA segmentation measurements (see Table 2, Figures 5 and 6) are in general small, as also reported in other studies for the IMT [6][7][8][9]41] , the D [10,12] , and the atherosclerotic carotid plaque [13,14] . Furthermore, it was shown in this study that the SA segmentation measurements for the IMT, the atherosclerotic plaque and D are very close to the M segmentation measurements (see Tables 2-5) as also reported in Ref.…”

Section: Discussionsupporting

confidence: 79%

“…[35] and evaluated in Ref. [7,[13][14][15]18] . We present in Figure 4 the M (left column of Figure 4) and the SA segmentations (right column of Figure 4, see subsection II.D) of the CCA bifurcation after image normalization and despeckle filtering.…”

Section: Recmentioning

confidence: 99%

“…[30] the IMT w ems were eithe ages of the CCA 20 two-dimens development o ne the far-wall nt to accurately pattern on both used to measur ignificant mark e [8][9][10] and the s and follow up stenosis, are im the above me 1] . Automated for the segmen intima-media-c artery (CCA), t ustrated on the risk of stroke methods were pr plaque [13,14] , ver, no other s presented. Mo as reported whi n Ref.…”

Section: Introductionmentioning

confidence: 99%

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An integrated system for the complete segmentation of the common carotid artery bifurcation in ultrasound images

Loizou

Pantziaris

2015

JBEI

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The complete segmentation of the common carotid artery (CCA) bifurcation in ultrasound images is important for the evaluation of atherosclerosis disease and the quantification of the risk of stroke. The current research work further evaluates and validates a semi-automated (SA) snake's based segmentation system suitable for the complete segmentation of the CCA bifurcation in two-dimensional (2D) ultrasound images. The proposed system semi-automatically estimates the intima-media thickness (IMT), the atherosclerotic carotid plaque borders and dimensions, the internal carotid artery (ICA) origin's stenosis, the carotid diameter (D), as well as other geometric measurements of the atherosclerotic carotid plaque. The system was evaluated on 300 2D longitudinal ultrasound images of the CCA bifurcation with manual (M) segmentations available from a neurovascular expert. No statistical significant differences between all M and SA IMT, plaque and D segmentation measurements were found. In a future study, texture features extracted from the intima-media complex (IMC) may be used to separate subjects in high and low risk groups, which may develop a stroke. However, a larger scale study is required for evaluating the system before its application in the real clinical practice.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 79%

Section: Recmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An integrated system for the complete segmentation of the common carotid artery bifurcation in ultrasound images

Loizou

Pantziaris

2015

JBEI

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“…However, 2D probes are more widely used, because they have a higher temporal resolution. Intima-media thickness (IMT) is usually measured in longitudinal sections of the carotid [3]. The observation of the carotid from that perspective also allows to quantify the extension of the atherosclerotic plaque and to analyze the behavior of the wall's motion, but it does not provide enough data to build a good three-dimensional representation of the vessel.…”

Section: Introductionmentioning

confidence: 99%

Estimating 3D lumen centerlines of carotid arteries in free-hand acquisition ultrasound

et al. 2011

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Purpose The purpose of this paper is to present a methodology to estimate the carotid artery lumen centerlines in ultrasound (US) images obtained in a free-hand examination. Challenging aspects here are speckle noise in US images, artifacts, and the lack of contrast in the direction orthogonal to the US beam direction. Method An algorithm based on a rough lumen segmentation obtained by robust ellipse fitting was developed to deal with these conditions and estimate the lumen center in 2D B-mode scans. In a free-hand sweep examination, continuous image acquisitions are performed through time when the radiologist moves the probe on the patient's neck. The result is a series of images that show 2D cross-sections of the carotid's morphology. A tracking sensor (Flock of Birds) was attached to the probe and both were connected to a PC executing the Stradwin software, which relates spatial information to the acquisition data of the US probe. The spatial information was combined with the 2D lumen center estimates to provide a centerline in 3D. For validation, 19 carotid scans from 15 different patients were scanned, their centerlines calculated by the algorithm and compared with results acquired by manual annotations. Results The average Euclidean distance between both among all the examinations was 0.82 mm. For each examination, the percentage of these Euclidean distances below 2 mm was calculated; the average over all examinations was 92%. Conclusion Automated 3D estimation of carotid artery lumen centerlines in free-hand real-time ultrasound is feasible and can be performed with high accuracy. The algorithm is robust enough to keep the centerlines inside the vessel, even in the absence of contrast in parts of the vessel wall.

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Carotid Artery Recognition System(CARS): A Comparison of Three Automated Paradigms for Ultrasound Images

Molinari¹,

Meiburger²,

Acharya³

et al. 2013

Multi-Modality Atherosclerosis Imaging and Diagnosis

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Segmentation of the carotid intima-media region in B-mode ultrasound images

Cited by 79 publications

References 42 publications

An integrated system for the complete segmentation of the common carotid artery bifurcation in ultrasound images

An integrated system for the complete segmentation of the common carotid artery bifurcation in ultrasound images

Estimating 3D lumen centerlines of carotid arteries in free-hand acquisition ultrasound

Carotid Artery Recognition System(CARS): A Comparison of Three Automated Paradigms for Ultrasound Images

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