Jornal Vascular Brasileiro
https://www.jvascbras.org/article/doi/10.1590/1677-5449.202200821
Jornal Vascular Brasileiro
Innovation

Elastografia por cisalhamento (shear wave) para placas ateroscleróticas carotídeas extracranianas: princípios técnicos e como realizar

Shear wave elastography for extracranial carotid atherosclerotic plaques: technical principles and how to do it

Pedro Luciano Mellucci Filho; Matheus Bertanha; Rodrigo Gibin Jaldin; Winston Bonetti Yoshida; Marcone Lima Sobreira

Downloads: 1
Views: 251

Resumo

Na esteira de estudos direcionados à placa aterosclerótica e em busca de variáveis quantificáveis que adicionem informações à tomada de decisão terapêutica, a avaliação a partir de elastografia shear wave (SWE) se apresenta como alternativa reprodutível e promissora. Utilizamos um único aparelho Logiq S8 (General Electric, Boston, Massachusetts, Estados Unidos) com um transdutor linear multifrequencial 8,5-11 MHz em 10 MHz em corte longitudinal. Consideramos critérios relevantes para a aquisição de imagem: adequada insonação longitudinal, diferenciação do complexo médio-intimal, delineamento de túnicas adventícias proximal e distal, lúmen vascular, boa visualização da placa aterosclerótica, ciclo em diástole ventricular e ausência de alterações incongruentes. A SWE é um método emergente e extremamente promissor no contexto da avaliação de placas carotídeas, podendo contribuir no futuro para a tomada de decisão terapêutica baseada em características relativas à placa aterosclerótica de forma reprodutível entre aparelhos e examinadores.

Palavras-chave

doenças das artérias carótidas, estenose das carótidas, ultrassonografia Doppler, interpretação de imagem assistida por computador, técnicas de imagem por elasticidade

Abstract

In the wake of studies targeting atherosclerotic plaques and searching for quantifiable variables that contribute additional information to therapeutic decision-making, plaque assessment using Shear Wave Elastography (SWE) is emerging as a reproducible and promising alternative. We used a single Logiq S8 device (General Electric, Boston, Massachusetts, United States) with an 8.5-11MHz multifrequency linear transducer at 10MHz in longitudinal section. We considered relevant criteria for image acquisition: adequate longitudinal insonation, differentiation of the intima-media complex, delineation of proximal and distal tunica adventitia and the vascular lumen, good visualization of the atherosclerotic plaque, cardiac cycle in ventricular diastole, and absence of incongruous changes. SWE is an emerging and extremely promising method for assessment of carotid plaques that may contribute to therapeutic decision-making based on characteristics related to the atherosclerotic plaque, with inter-device and inter-examiner reproducibility.

Keywords

carotid artery diseases; carotid stenosis; Doppler ultrasonography; computer-assisted image interpretation; elasticity imaging techniques

References

1 Marder VJ, Chute DJ, Starkman S, et al. Analysis of thrombi retrieved from cerebral arteries of patients with acute ischemic stroke. Stroke. 2006;37(8):2086-93. http://dx.doi.org/10.1161/01.STR.0000230307.03438.94. PMid:16794209.

2 European Carotid Surgery Trialists' Collaborative Group. Randomized trial of endarterectomy for recently symptomatic carotid stenosis: final results of the MRC European Carotid Surgery Trial (ECST). Lancet. 1998;351(9113):1379-87. http://dx.doi.org/10.1016/S0140-6736(97)09292-1. PMid:9593407.

3 North American Symptomatic Carotid Endarterectomy Trial Collaborators. Beneficial effect of carotid endarterectomy in symptomatic patients with high-grade carotid stenosis. N Engl J Med. 1991;325(7):445-53. http://dx.doi.org/10.1056/NEJM199108153250701. PMid:1852179.

4 Barnett HJ, Taylor DW, Eliasziw M, et al. Benefit of carotid endarterectomy in patients with symptomatic moderate or severe stenosis. N Engl J Med. 1998;339(20):1415-25. http://dx.doi.org/10.1056/NEJM199811123392002. PMid:9811916.

5 Executive Committee for the Asymptomatic Carotid Atherosclerosis Study. Endarterectomy for asymptomatic patients with high grade stenosis. JAMA. 1995 [citado 2022 ago 7];273:1421-8. https://www.urmc.rochester.edu/MediaLibraries/URMCMedia/neurology/documents/ACAS.pdf.

6 MRC Asymptomatic Carotid Surgery Trial (ACST) Collaborative Group. Prevention of disabling and fatal strokes by successful carotid endarterectomy in patients without recent neurological symptoms: randomised controlled trial. Lancet. 2004;363(9420):1491-502. http://dx.doi.org/10.1016/S0140-6736(04)16146-1. PMid:15135594.

7 Naylor AR, Ricco J-B, Borst GJD, et al. Editor’s choice - management of atherosclerotic carotid and vertebral artery disease: 2017 Clinical Practice Guidelines of the European Society for Vascular Surgery (ESVS). Eur J Vasc Endovasc Surg. 2018;55(1):3-81. http://dx.doi.org/10.1016/j.ejvs.2017.06.021. PMid:28851594.

8 AbuRahma AF, Avgerinos ED, Chang RW, et al. Society for Vascular Surgery clinical practice guidelines for management of extracranial cerebrovascular disease. J Vasc Surg. 2022;75(1 Supl):4S-22S. http://dx.doi.org/10.1016/j.jvs.2021.04.073. PMid:34153348.

9 Redgrave JN, Lovett JK, Gallagher PJ, Rothwell PM. Histological assessment of 526 symptomatic carotid plaques in relation to the nature and timing of ischemic symptoms: the Oxford Plaque Study. Circulation. 2006;113(19):2320-8. http://dx.doi.org/10.1161/CIRCULATIONAHA.105.589044. PMid:16651471.

10 Nicolaides AN, Kakkos SK, Kyriacou E, et al. Asymptomatic internal carotid artery stenosis and cerebrovascular risk stratification. J Vasc Surg. 2010;52(6):1486-96.E5. http://dx.doi.org/10.1016/j.jvs.2010.07.021. PMid:21146746.

11 Pruijssen JT, Korte CLD, Voss I, Hansen HHG. Vascular shear wave elastography in atherosclerotic arteries: a systematic review. Ultrasound Med Biol. 2020;46(9):2145-63. http://dx.doi.org/10.1016/j.ultrasmedbio.2020.05.013. PMid:32620385.

12 Sarvazyan AP, Rudenko OV, Swanson SD, Fowlkes JB, Emelianov SY. Shear wave elasticity imaging: a new ultrasonic technology of medical diagnostics. Ultrasound Med Biol. 1998;24(9):1419-35. http://dx.doi.org/10.1016/S0301-5629(98)00110-0. PMid:10385964.

13 Marlevi D, Mulvagh SL, Huang R, et al. Combined spatiotemporal and frequency-dependent shear wave elastography enables detection of vulnerable carotid plaques as validated by MRI. Sci Rep. 2020;10(1):12214. http://dx.doi.org/10.1038/s41598-020-69148-y. PMid:32678301.

14 Marais L, Pernot M, Khettab H, et al. Arterial stiffness assessment by shear wave elastography and ultrafast pulse wave imaging: comparison with reference techniques in normotensives and hypertensives. Ultrasound Med Biol. 2019;45(3):758-72. http://dx.doi.org/10.1016/j.ultrasmedbio.2018.10.032. PMid:30642659.

15 Di Leo N, Venturini L, de Soccio V, et al. Multiparametric ultrasound evaluation with CEUS and shear wave elastography for carotid plaque risk stratification. J Ultrasound. 2018;21(4):293-300. http://dx.doi.org/10.1007/s40477-018-0320-7. PMid:30378007.

16 Shang J, Wang W, Feng J, et al. Carotid plaque stiffness measured with supersonic shear imaging and its correlation with serum homocysteine level in ischemic stroke patients. Korean J Radiol. 2018;19(1):15-22. http://dx.doi.org/10.3348/kjr.2018.19.1.15. PMid:29353995.

17 Alis D, Durmaz ESM, Civcik C, et al. Assessment of the common carotid artery wall stiffness by shear wave elastography in Behcet’s disease. Med Ultrason. 2018;20(4):446-52. http://dx.doi.org/10.11152/mu-1565. PMid:30534651.

18 Lou Z, Yang J, Tang L, et al. Shear wave elastography imaging for the features of symptomatic carotid plaques: a feasibility study. J Ultrasound Med. 2017;36(6):1213-23. http://dx.doi.org/10.7863/ultra.16.04073. PMid:28218798.

19 Lei Z, Qiang Y, Tianning P, Jie L. Quantitative assessment of carotid atherosclerotic plaque: initial clinical results using ShearWave™ Elastography. Int J Clin Exp Med. 2016;9:9347-55.

20 Maksuti E, Widman E, Larsson D, Urban MW, Larsson M, Bjällmark A. Arterial stiffness estimation by shear wave elastography: validation in phantoms with mechanical testing. Ultrasound Med Biol. 2016;42(1):308-21. http://dx.doi.org/10.1016/j.ultrasmedbio.2015.08.012. PMid:26454623.

21 Garrard JW, Ummur P, Nduwayo S, et al. Shear wave elastography may be superior to greyscale median for the identification of carotid plaque vulnerability: a comparison with histology. Ultraschall Med. 2015;36(4):386-90. http://dx.doi.org/10.1055/s-0034-1399676. PMid:26091003.

22 Ramnarine KV, Garrard JW, Kanber B, Nduwayo S, Hartshorne TC, Robinson TG. Shear wave elastography imaging of carotid plaques: feasible, reproducible and of clinical potential. Cardiovasc Ultrasound. 2014;12(1):49. http://dx.doi.org/10.1186/1476-7120-12-49. PMid:25487290.

23 Steffel CN, Brown R, Korcarz CE, et al. Influence of ultrasound system and gain on grayscale median values. J Ultrasound Med. 2019;38(2):307-19. http://dx.doi.org/10.1002/jum.14690. PMid:30027550.
 


Submitted date:
08/07/2022

Accepted date:
06/12/2023

Sociedade Brasileira de Angiologia e Cirurgia Vascular (SBACV)"> Sociedade Brasileira de Angiologia e Cirurgia Vascular (SBACV)">
650b5b2da95395634326b783 jvb Articles
Links & Downloads

J Vasc Bras

Share this page
Page Sections