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Whittington B, Tzolos E, Williams MC, Dweck MR, Newby DE. Imaging of intracoronary thrombus. Heart 2023; 109:740-747. [PMID: 36549679 DOI: 10.1136/heartjnl-2022-321361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022] Open
Abstract
The identification of intracoronary thrombus and atherothrombosis is central to the diagnosis of acute myocardial infarction, with the differentiation between type 1 and type 2 myocardial infarction being crucial for immediate patient management. Invasive coronary angiography has remained the principal imaging modality used in the investigation of patients with myocardial infarction. More recently developed invasive intravascular imaging approaches, such as angioscopy, intravascular ultrasound and optical coherence tomography, can be used as adjunctive imaging modalities to provide more direct visualisation of coronary atheroma and the causes of myocardial infarction as well as to improve the sensitivity of thrombus detection. However, these invasive approaches have practical and logistic constraints that limit their widespread and routine application. Non-invasive angiographic techniques, such as CT and MRI, have become more widely available and have improved the non-invasive visualisation of coronary artery disease. Although they also have a limited ability to reliably identify intracoronary thrombus, this can be overcome by combining their anatomical and structural characterisation of coronary anatomy with positron emission tomography. Specific radiotracers which bind with high specificity and sensitivity to components of thrombus, such as activated platelets, fibrin and factor XIIIa, hold promise for the non-invasive detection of intracoronary thrombus. The development of these novel non-invasive approaches has the potential to inform clinical decision making and patient management as well as to provide a non-invasive technique to assess the efficacy of novel antithrombotic therapies or interventional strategies. However, these have yet to be realised in routine clinical practice.
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Affiliation(s)
- Beth Whittington
- BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, Queen's Medical Research Institute, Edinburgh, UK
| | - Evangelos Tzolos
- BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, Queen's Medical Research Institute, Edinburgh, UK
| | - Michelle C Williams
- BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, Queen's Medical Research Institute, Edinburgh, UK
| | - Marc R Dweck
- BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, Queen's Medical Research Institute, Edinburgh, UK
| | - David E Newby
- BHF Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, UK
- Edinburgh Imaging, Queen's Medical Research Institute, Edinburgh, UK
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Goerne H, de la Fuente D, Cabrera M, Chaturvedi A, Vargas D, Young PM, Saboo SS, Rajiah P. Imaging Features of Complications after Coronary Interventions and Surgical Procedures. Radiographics 2021; 41:699-719. [PMID: 33798007 DOI: 10.1148/rg.2021200147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Coronary artery interventions and surgical procedures are used in the treatment of coronary artery disease and some congenital heart diseases. Cardiac and noncardiac complications can occur at variable times after these procedures, with the clinical presentation ranging from asymptomatic to devastating symptoms. Invasive coronary angiography is the reference standard modality used in the evaluation of coronary arteries, with intravascular US and optical coherence tomography providing high-resolution information regarding the vessel wall. CT is the mostly commonly used noninvasive imaging modality in the evaluation of coronary artery intervention complications and allows assessment of the stent, lumen of the stent, lumen of the coronary arteries, and extracoronary structures. MRI is limited to the evaluation of the proximal coronary arteries but allows comprehensive evaluation of the myocardium, including ischemia and infarction. The authors review the clinical symptoms and pathophysiologic and imaging features of various complications of coronary artery interventions and surgical procedures. Complications of percutaneous coronary interventions are discussed, including restenosis, thrombosis, dissection of coronary arteries or the aorta, coronary wall rupture or perforation, stent deployment failure, stent fracture, stent infection, stent migration or embolism, and reperfusion injury. Complications of several surgical procedures are reviewed, including coronary artery bypass grafting, coronary artery reimplantation procedure (for anomalous origin from opposite sinuses or the pulmonary artery or as part of surgical procedures such as arterial switching surgery and the Bentall and Cabrol procedures), coronary artery unroofing, and the Takeuchi procedure. Online supplemental material is available for this article. ©RSNA, 2021.
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Affiliation(s)
- Harold Goerne
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Diego de la Fuente
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Miguel Cabrera
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Abhishek Chaturvedi
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Daniel Vargas
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Phillip M Young
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Sachin S Saboo
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
| | - Prabhakar Rajiah
- From the Department of Cardiac Imaging, Imaging and Diagnostic Center CID, Americas Avenue 2016, Guadalajara, Jalisco, Mexico (H.G.); Department of Radiology, Western National Medical Center IMSS, Guadalajara, Jalisco, Mexico (H.G., D.d.l.F., M.C.); Department of Radiology, University of Rochester Medical Center, Rochester, NY (A.C.); Department of Radiology, University of Colorado Hospital, Denver, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (P.M.Y., P.R.); and Department of Radiology, UT Health Science Center, San Antonio, Tex (S.S.S.)
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Mancuso JJ, Halaney DL, Elahi S, Ho D, Wang T, Ouyang Y, Dijkstra J, Milner TE, Feldman MD. Intravascular optical coherence tomography light scattering artifacts: merry-go-rounding, blooming, and ghost struts. JOURNAL OF BIOMEDICAL OPTICS 2014; 19:126017. [PMID: 25545341 PMCID: PMC4659478 DOI: 10.1117/1.jbo.19.12.126017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 12/04/2014] [Indexed: 06/04/2023]
Abstract
We sought to elucidate the mechanisms underlying two common intravascular optical coherence tomography (IV-OCT) artifacts that occur when imaging metallic stents: “merry-go-rounding” (MGR), which is an increase in strut arc length (SAL), and “blooming,” which is an increase in the strut reflection thickness (blooming thickness). Due to uncontrollable variables that occur in vivo, we performed an in vitro assessment of MGR and blooming in stented vessel phantoms. Using Xience V and Driver stents, we examined the effects of catheter offset, intimal strut coverage, and residual blood on SAL and blooming thickness in IV-OCT images. Catheter offset and strut coverage both caused minor MGR, while the greatest MGR effect resulted from light scattering by residual blood in the vessel lumen, with 1% hematocrit (Hct) causing a more than fourfold increase in SAL compared with saline (p<0.001 ). Residual blood also resulted in blooming, with blooming thickness more than doubling when imaged in 0.5% Hct compared with saline (p<0.001 ). We demonstrate that a previously undescribed mechanism, light scattering by residual blood in the imaging field, is the predominant cause of MGR. Light scattering also results in blooming, and a newly described artifact, three-dimensional-MGR, which results in “ghost struts” in B-scans.
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Affiliation(s)
- J. Jacob Mancuso
- The University of Texas Health Science Center at San Antonio, Division of Cardiology, Department of Medicine, 7703 Floyd Curl Drive, San Antonio, Texas 78229, United States
- South Texas Veterans Health Care System, The Department of Veterans Affairs, San Antonio, Texas 78229, United States
| | - David L. Halaney
- The University of Texas Health Science Center at San Antonio, Division of Cardiology, Department of Medicine, 7703 Floyd Curl Drive, San Antonio, Texas 78229, United States
- South Texas Veterans Health Care System, The Department of Veterans Affairs, San Antonio, Texas 78229, United States
| | - Sahar Elahi
- The University of Texas at Austin, Department of Biomedical Engineering, 1 University Station C0800, Austin, Texas 78712, United States
| | - Derek Ho
- The University of Texas at Austin, Department of Biomedical Engineering, 1 University Station C0800, Austin, Texas 78712, United States
| | - Tianyi Wang
- The University of Texas at Austin, Department of Biomedical Engineering, 1 University Station C0800, Austin, Texas 78712, United States
| | - Yongjian Ouyang
- The University of Texas Health Science Center at San Antonio, Division of Cardiology, Department of Medicine, 7703 Floyd Curl Drive, San Antonio, Texas 78229, United States
| | - Jouke Dijkstra
- Leiden University Medical Center, Division of Image Processing, Department of Radiology, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
| | - Thomas E. Milner
- The University of Texas at Austin, Department of Biomedical Engineering, 1 University Station C0800, Austin, Texas 78712, United States
| | - Marc D. Feldman
- The University of Texas Health Science Center at San Antonio, Division of Cardiology, Department of Medicine, 7703 Floyd Curl Drive, San Antonio, Texas 78229, United States
- South Texas Veterans Health Care System, The Department of Veterans Affairs, San Antonio, Texas 78229, United States
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