Semi-automated segmentation of carotid artery total plaque volume from three dimensional ultrasound carotid imaging

Buchanan, Daniel; Gyacskov, Igor; Ukwatta, Eranga; Lindenmaier, Tamas J; Fenster, Aaron; Párraga, Grace

doi:10.1117/12.912880

Cited by 10 publications

(5 citation statements)

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“…20 Plaque was defined as focal thickening >1 mm of the intima-media in the longitudinal view. Briefly, a longitudinal axis was set parallel to the axis of flow in the common and internal carotid arteries.…”

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confidence: 99%

Progression of Carotid Plaque Volume Predicts Cardiovascular Events

Wannarong

Párraga

Buchanan

et al. 2013

Stroke

144

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Participants in the study were patients being followed up in the Stroke Prevention Clinic or the Premature Atherosclerosis Clinic at University Hospital, London, Ontario, Canada. Participants were screened for this study by measurement of their carotid TPA. 15 WeBackground and Purpose-Carotid ultrasound evaluation of intima-media thickness (IMT) and plaque burden has been used for risk stratification and for evaluation of antiatherosclerotic therapies. Increasing evidence indicates that measuring plaque burden is superior to measuring IMT for both purposes. We compared progression/regression of IMT, total plaque area (TPA), and total plaque volume (TPV) as predictors of cardiovascular outcomes. Methods-IMT, TPA, and TPV were measured at baseline in 349 patients attending vascular prevention clinics; they had TPA of 40 to 600 mm 2 at baseline to qualify for enrollment. Participants were followed up for ≤5 years (median, 3.17 years) to ascertain vascular death, myocardial infarction, stroke, and transient ischemic attacks. Follow-up measurements 1 year later were available in 323 cases for IMT and TPA, and in 306 for TPV. Results-Progression

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mentioning

confidence: 99%

Progression of Carotid Plaque Volume Predicts Cardiovascular Events

Wannarong

Párraga

Buchanan

et al. 2013

Stroke

144

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“…Randomized and blinded BL and FU images were simultaneously displayed on adjacent monitors to ensure identification of the same plaque in images at both time-points. For the generation of TPV measurements, custom-built software tools previously described [ 26 ] were used for evaluation of carotid plaque identified within 10 mm distal to the bifurcation in the common carotid artery (CCA) and 5 mm proximal to the BF in the internal carotid artery (ICA). TPV for each individual was calculated by summing the volume of individual plaques within the left and right carotid arteries.…”

Section: Methodsmentioning

confidence: 99%

One, two and three-dimensional ultrasound measurements of carotid atherosclerosis before and after cardiac rehabilitation: preliminary results of a randomized controlled trial

Lindenmaier

Buchanan

Pike

et al. 2013

Cardiovasc Ultrasound

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BackgroundIt is still not known how patients who are post-transient ischemic attack (TIA) or post-stroke might benefit from prospectively planned comprehensive cardiac rehabilitation (CCR). In this pilot evaluation of a larger ongoing randomized-controlled-trial, we evaluated ultrasound (US) measurements of carotid atherosclerosis in subjects following TIA or mild non-disabling stroke and their relationship with risk factors before and after 6-months of CCR.MethodsCarotid ultrasound (US) measurements of one-dimensional intima-media-thickness (IMT), two-dimensional total-plaque-area (TPA), three-dimensional total-plaque-volume (TPV) and vessel-wall-volume (VWV) were acquired before and after 6-months CCR for 39 subjects who had previously experienced a TIA and provided written informed consent to participate in this randomized controlled trial. We maintained blinding for this ongoing study by representing treatment and control groups as A or B, although we did not identify which of A or B was treatment or control. Carotid IMT, TPA, TPV and VWV were measured before and after CCR as were changes in body mass index (BMI), total cholesterol (TC), high-density lipoprotein (HDL), low-density lipoprotein (LDL), triglycerides (TG), systolic blood pressure (SBP) and diastolic blood pressure (DBP).ResultsThere were no significant differences in US measurements or risk factors between groups A and B. There was no significant change in carotid ultrasound measurements for group A (IMT, p = .728; TPA, p = .629; TPV, p = .674; VWV, p = .507) or B (IMT, p = .054; TPA, p = .567; TPV, p = .773; VWV, p = .431) at the end of CCR. There were significant but weak-to-moderate correlations between IMT and VWV (r = 0.25, p = .01), IMT and TPV (r = 0.21, p = .01), TPV and TPA (r = 0.60, p < .0001) and VWV and TPV (r = 0.22, p = .02). Subjects with improved TC/HDL ratios showed improved carotid VWV although, this was not statistically significant.ConclusionIn this preliminary evaluation, there were no significant differences in carotid US measurements in the control or CCR group; a larger sample size and/or longer duration is required to detect significant changes in US or other risk factor measurements.

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“…The disk segmentation method was not only difficult, but also required 2–3 months of preparation. Initial semi-automated techniques[2324] reduced the number of slices of the plaque that needed manual input to establish the proximal and distal ends of each plaque. The operator had to delineate slices at the midpoint, 25% and 75% of the length of the plaque, with automated interpolation of the surface of the rest of the plaque.…”

Section: Historymentioning

confidence: 99%

Three-dimensional echographic evaluation of carotid artery disease

Calogero

Fabiani

Pugliese

et al. 2018

J Cardiovasc Echography

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The introduction of three-dimensional echography (3D echo) in vascular field is not recent, but it still remains a seldom-used technique because of the costs of ultrasound probe and the need of dedicated laboratories. Therefore, despite significant prognostic implications, the high diagnostic accuracy in plaque definition, and the relative ease of use, 3D echo in vascular field is a niche technique. The purpose of this review is mainly clinical and intends to demonstrate the potential strength of a 3D approach, including technical aspects, in order to present to clinicians and imagers the appealing aspects of a noninvasive and radiation-free methodology with relevant diagnostic and prognostic correlates in the assessment of carotid atherosclerosis. A comprehensive literature search (since 1990s to date) using the PubMed, MEDLINE, and Cochrane libraries databases has been conducted. Articles written in English have been assessed, including reviews, clinical trials, meta-analyses, and interventional/observational studies. Manual cross-referencing was also performed, and relevant references from selected articles were reviewed. The search was limited to studies conducted in humans. Search terms, retrieved also with PubMed Advanced search and AND/OR Boolean operators (mainly in title and abstract), included three-dimensional, echo, stroke/transient ischemic attack, predictors, carotid, imaging, and biomarkers.

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Semi-automated segmentation of carotid artery total plaque volume from three dimensional ultrasound carotid imaging

Cited by 10 publications

References 0 publications

Progression of Carotid Plaque Volume Predicts Cardiovascular Events

Progression of Carotid Plaque Volume Predicts Cardiovascular Events

One, two and three-dimensional ultrasound measurements of carotid atherosclerosis before and after cardiac rehabilitation: preliminary results of a randomized controlled trial

Three-dimensional echographic evaluation of carotid artery disease

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