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Moerman AM, Korteland S, Dilba K, van Gaalen K, Poot DHJ, van Der Lugt A, Verhagen HJM, Wentzel JJ, van Der Steen AFW, Gijsen FJH, Van der Heiden K. The Correlation Between Wall Shear Stress and Plaque Composition in Advanced Human Carotid Atherosclerosis. Front Bioeng Biotechnol 2022; 9:828577. [PMID: 35155418 PMCID: PMC8831262 DOI: 10.3389/fbioe.2021.828577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
The role of wall shear stress (WSS) in atherosclerotic plaque development is evident, but the relation between WSS and plaque composition in advanced atherosclerosis, potentially resulting in plaque destabilization, is a topic of discussion. Using our previously developed image registration pipeline, we investigated the relation between two WSS metrics, time-averaged WSS (TAWSS) and the oscillatory shear index (OSI), and the local histologically determined plaque composition in a set of advanced human carotid plaques. Our dataset of 11 carotid endarterectomy samples yielded 87 histological cross-sections, which yielded 511 radial bins for analysis. Both TAWSS and OSI values were subdivided into patient-specific low, mid, and high tertiles. This cross-sectional study shows that necrotic core (NC) size and macrophage area are significantly larger in areas exposed to high TAWSS or low OSI. Local TAWSS and OSI tertile values were generally inversely related, as described in the literature, but other combinations were also found. Investigating the relation between plaque vulnerability features and different combinations of TAWSS and OSI tertile values revealed a significantly larger cap thickness in areas exposed to both low TAWSS and low OSI. In conclusion, our study confirmed previous findings, correlating high TAWSS to larger macrophage areas and necrotic core sizes. In addition, our study demonstrated new relations, correlating low OSI to larger macrophage areas, and a combination of low TAWSS and low OSI to larger cap thickness.
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Affiliation(s)
- A. M. Moerman
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
| | - S. Korteland
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
| | - K. Dilba
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
| | - K. van Gaalen
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
| | - D. H. J. Poot
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, Netherlands
| | - A. van Der Lugt
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, Netherlands
| | | | - J. J. Wentzel
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
| | | | - F. J. H. Gijsen
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
- Department of Biomedical Engineering, Delft University of Technology, Delft, Netherlands
| | - K. Van der Heiden
- Department of Biomedical Engineering, Thorax Center, Erasmus MC, Rotterdam, Netherlands
- *Correspondence: K. Van der Heiden,
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Dilba K, van Dam-Nolen DHK, van Dijk AC, Kassem M, van der Steen AFW, Koudstaal PJ, Nederkoorn PJ, Hendrikse J, Kooi ME, Wentzel JJ, van der Lugt A. Plaque Composition as a Predictor of Plaque Ulceration in Carotid Artery Atherosclerosis: The Plaque At RISK Study. AJNR Am J Neuroradiol 2021; 42:144-151. [PMID: 33214179 DOI: 10.3174/ajnr.a6868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 08/09/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Plaque ulceration is a marker of previous plaque rupture. We studied the association between atherosclerotic plaque composition at baseline and plaque ulceration at baseline and follow-up. MATERIALS AND METHODS We included symptomatic patients with a carotid stenosis of <70% who underwent MDCTA and MR imaging at baseline (n = 180). MDCTA was repeated at 2 years (n = 73). We assessed the presence of ulceration using MDCTA. Baseline MR imaging was used to assess the vessel wall volume and the presence and volume of plaque components (intraplaque hemorrhage, lipid-rich necrotic core, and calcifications) and the fibrous cap status. Associations at baseline were evaluated with binary logistic regression and reported with an OR and its 95% CI. Simple statistical testing was performed in the follow-up analysis. RESULTS At baseline, the prevalence of plaque ulceration was 27% (49/180). Increased wall volume (OR = 12.1; 95% CI, 3.5-42.0), higher relative lipid-rich necrotic core (OR = 1.7; 95% CI, 1.3-2.2), higher relative intraplaque hemorrhage volume (OR = 1.7; 95% CI, 1.3-2.2), and a thin-or-ruptured fibrous cap (OR = 3.4; 95% CI, 1.7-6.7) were associated with the presence of ulcerations at baseline. In 8% (6/73) of the patients, a new ulcer developed. Plaques with a new ulceration at follow-up had at baseline a larger wall volume (1.04 cm3 [IQR, 0.97-1.16 cm3] versus 0.86 cm3 [IQR, 0.73-1.00 cm3]; P = .029), a larger relative lipid-rich necrotic core volume (23% [IQR, 13-31%] versus 2% [IQR, 0-14%]; P = .002), and a larger relative intraplaque hemorrhage volume (14% [IQR, 8-24%] versus 0% [IQR, 0-5%]; P < .001). CONCLUSIONS Large atherosclerotic plaques and plaques with intraplaque hemorrhage and lipid-rich necrotic cores were associated with plaque ulcerations at baseline and follow-up.
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Affiliation(s)
- K Dilba
- From the Departments of Radiology and Nuclear Medicine (K.D., D.H.K.v.D.-N., A.C.v.D., A.v.d.L.)
- Cardiology (K.D., A.F.W.v.d.S., J.J.W.)
| | - D H K van Dam-Nolen
- From the Departments of Radiology and Nuclear Medicine (K.D., D.H.K.v.D.-N., A.C.v.D., A.v.d.L.)
| | - A C van Dijk
- From the Departments of Radiology and Nuclear Medicine (K.D., D.H.K.v.D.-N., A.C.v.D., A.v.d.L.)
- Neurology (A.C.v.D., P.J.K.), Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - M Kassem
- Department of Radiology and Nuclear Medicine (M.K., M.E.K.), CARIM School for Cardiovascular Diseases, Maastricht University Medical Center+, Maastricht, the Netherlands
| | | | - P J Koudstaal
- Neurology (A.C.v.D., P.J.K.), Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - P J Nederkoorn
- Department of Neurology (P.J.N.), University Medical Center Amsterdam, Amsterdam, the Netherlands
| | - J Hendrikse
- Department of Radiology (J.H.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - M E Kooi
- Department of Radiology and Nuclear Medicine (M.K., M.E.K.), CARIM School for Cardiovascular Diseases, Maastricht University Medical Center+, Maastricht, the Netherlands
| | | | - A van der Lugt
- From the Departments of Radiology and Nuclear Medicine (K.D., D.H.K.v.D.-N., A.C.v.D., A.v.d.L.)
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Moerman AM, Dilba K, Korteland S, Poot DHJ, Klein S, van der Lugt A, Rouwet EV, van Gaalen K, Wentzel JJ, van der Steen AFW, Gijsen FJH, Van der Heiden K. An MRI-based method to register patient-specific wall shear stress data to histology. PLoS One 2019; 14:e0217271. [PMID: 31170183 PMCID: PMC6553699 DOI: 10.1371/journal.pone.0217271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/27/2019] [Indexed: 11/18/2022] Open
Abstract
Wall shear stress (WSS), the frictional force exerted on endothelial cells by blood flow, is hypothesised to influence atherosclerotic plaque growth and composition. We developed a methodology for image registration of MR and histology images of advanced human carotid plaques and corresponding WSS data, obtained by MRI and computational fluid dynamics. The image registration method requires four types of input images, in vivo MRI, ex vivo MRI, photographs of transversally sectioned plaque tissue and histology images. These images are transformed to a shared 3D image domain by applying a combination of rigid and non-rigid registration algorithms. Transformation matrices obtained from registration of these images are used to transform subject-specific WSS data to the shared 3D image domain as well. WSS values originating from the 3D WSS map are visualised in 2D on the corresponding lumen locations in the histological sections and divided into eight radial segments. In each radial segment, the correlation between WSS values and plaque composition based on histological parameters can be assessed. The registration method was successfully applied to two carotid endarterectomy specimens. The resulting matched contours from the imaging modalities had Hausdorff distances between 0.57 and 0.70 mm, which is in the order of magnitude of the in vivo MRI resolution. We simulated the effect of a mismatch in the rigid registration of imaging modalities on WSS results by relocating the WSS data with respect to the stack of histology images. A 0.6 mm relocation altered the mean WSS values projected on radial bins on average by 0.59 Pa, compared to the output of original registration. This mismatch of one image slice did not change the correlation between WSS and plaque thickness. In conclusion, we created a method to investigate correlations between WSS and plaque composition.
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Affiliation(s)
- A. M. Moerman
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
| | - K. Dilba
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - S. Korteland
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
| | - D. H. J. Poot
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Medical Informatics, Erasmus MC, Rotterdam, The Netherlands
| | - S. Klein
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Medical Informatics, Erasmus MC, Rotterdam, The Netherlands
| | - A. van der Lugt
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - E. V. Rouwet
- Department of Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - K. van Gaalen
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
| | - J. J. Wentzel
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
| | | | - F. J. H. Gijsen
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
| | - K. Van der Heiden
- Department of Biomedical Engineering, Erasmus MC, Rotterdam, The Netherlands
- * E-mail:
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Compagne KCJ, Dilba K, Postema EJ, van Es ACGM, Emmer BJ, Majoie CBLM, van Zwam WH, Dippel DWJ, Wentzel JJ, van der Lugt A, Gijsen FJH. Flow Patterns in Carotid Webs: A Patient-Based Computational Fluid Dynamics Study. AJNR Am J Neuroradiol 2019; 40:703-708. [PMID: 30872422 DOI: 10.3174/ajnr.a6012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/07/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE Carotid webs are increasingly recognized as an important cause of (recurrent) ischemic stroke in patients without other cardiovascular risk factors. Hemodynamic flow patterns induced by these lesions might be associated with thrombus formation. The aim of our study was to evaluate flow patterns of carotid webs using computational fluid dynamics. MATERIALS AND METHODS Patients with a carotid web in the Multicenter Randomized Clinical Trial of Endovascular Treatment of Acute Ischemic Stroke in the Netherlands (MR CLEAN) were selected for hemodynamic evaluation with computational fluid dynamics models based on lumen segmentations obtained from CT angiography scans. Hemodynamic parameters, including the area of recirculation zone, time-averaged wall shear stress, transverse wall shear stress, and the oscillatory shear index, were assessed and compared with the contralateral carotid bifurcation. RESULTS In our study, 9 patients were evaluated. Distal to the carotid webs, recirculation zones were significantly larger compared with the contralateral bifurcation (63 versus 43 mm2, P = .02). In the recirculation zones of the carotid webs and the contralateral carotid bifurcation, time-averaged wall shear stress values were comparable (both: median, 0.27 Pa; P = .30), while transverse wall shear stress and oscillatory shear index values were significantly higher in the recirculation zone of carotid webs (median, 0.25 versus 0.21 Pa; P = .02 and 0.39 versus 0.30 Pa; P = .04). At the minimal lumen area, simulations showed a significantly higher time-averaged wall shear stress in the web compared with the contralateral bifurcation (median, 0.58 versus 0.45 Pa; P = .01). CONCLUSIONS Carotid webs are associated with increased recirculation zones and regional increased wall shear stress metrics that are associated with disturbed flow. These findings suggest that a carotid web might stimulate thrombus formation, which increases the risk of acute ischemic stroke.
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Affiliation(s)
- K C J Compagne
- From the Departments of Radiology and Nuclear Medicine (K.C.J.C., K.D., A.C.G.M.v.E., A.v.d.L.).,Neurology (K.C.J.C., D.W.J.D.)
| | - K Dilba
- From the Departments of Radiology and Nuclear Medicine (K.C.J.C., K.D., A.C.G.M.v.E., A.v.d.L.).,Biomedical Engineering (K.D., E.J.P., J.J.W., F.J.H.G.), Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - E J Postema
- Biomedical Engineering (K.D., E.J.P., J.J.W., F.J.H.G.), Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - A C G M van Es
- From the Departments of Radiology and Nuclear Medicine (K.C.J.C., K.D., A.C.G.M.v.E., A.v.d.L.)
| | - B J Emmer
- Department of Radiology (B.J.E., C.B.L.M.M.), Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - C B L M Majoie
- Department of Radiology (B.J.E., C.B.L.M.M.), Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - W H van Zwam
- Department of Radiology (W.H.v.Z.), Maastricht University Medical Center, Maastricht, the Netherlands.,Cardiovascular Research Institute Maastricht (W.H.v.Z.), Maastricht, the Netherlands
| | | | - J J Wentzel
- Biomedical Engineering (K.D., E.J.P., J.J.W., F.J.H.G.), Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - A van der Lugt
- From the Departments of Radiology and Nuclear Medicine (K.C.J.C., K.D., A.C.G.M.v.E., A.v.d.L.)
| | - F J H Gijsen
- Biomedical Engineering (K.D., E.J.P., J.J.W., F.J.H.G.), Erasmus MC, University Medical Center, Rotterdam, the Netherlands
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