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Patel A, Abdalla RN, Allaw S, Cantrell DR, Shaibani A, Caprio F, Hasan DM, Alaraj A, Polster SP, Carroll TJ, Ansari SA. Temporal Changes on Postgadolinium MR Vessel Wall Imaging Captures Enhancement Kinetics of Intracranial Atherosclerotic Plaques and Aneurysms. AJNR Am J Neuroradiol 2024:ajnr.A8370. [PMID: 39054289 DOI: 10.3174/ajnr.a8370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/05/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND AND PURPOSE Analysis of vessel wall contrast kinetics (ie, wash-in/washout) is a promising method for the diagnosis and risk-stratification of intracranial atherosclerotic disease plaque (ICAD-P) and the intracranial aneurysm walls (IA-W). We used black-blood MR imaging or MR vessel wall imaging to evaluate the temporal relationship of gadolinium contrast uptake kinetics in ICAD-Ps and IA-Ws compared with normal anatomic reference structures. MATERIALS AND METHODS Patients with ICAD-Ps or IAs who underwent MR vessel wall imaging with precontrast, early postcontrast (5-15 minutes), and delayed postcontrast (20-30 minutes) 3D T1-weighted TSE sequences were retrospectively studied. ROIs of a standardized diameter (2 mm) were used to measure the signal intensities of the cavernous sinus, pituitary infundibulum, temporalis muscle, and choroid plexus. Point ROIs were used for ICAD-Ps and IA-Ws. All ROI signal intensities were normalized to white matter signal intensity obtained using ROIs of 10-mm diameter. Measurements were acquired on precontrast, early postcontrast, and delayed postcontrast 3D T1 TSE sequences for each patient. RESULTS Ten patients with 17 symptomatic ICAD-Ps and 30 patients with 34 IA-Ws were included and demonstrated persisting contrast uptake (P < .001) of 7.21% and 10.54% beyond the early phase (5-15 minutes postcontrast) and in the delayed phase (20-30 minutes postcontrast) on postcontrast MR vessel wall imaging. However, normal anatomic reference structures including the pituitary infundibulum and cavernous sinus demonstrated a paradoxical contrast washout in the delayed phase. In both ICAD-Ps and IA-Ws, the greatest percentage of quantitative enhancement (>70%-90%) occurred in the early phase of postcontrast imaging, consistent with the rapid contrast uptake kinetics of neurovascular pathology. CONCLUSIONS Using standard MR vessel wall imaging techniques, our results demonstrate the effects of gadolinium contrast uptake kinetics in ICAD-Ps and IA-Ws with extended accumulating enhancement into the delayed phase (> 15 minutes) as opposed to normal anatomic reference structures that conversely exhibit decreasing enhancement. Because these relative differences are used to assess qualitative patterns of ICAD-P and IA-W enhancement, our findings highlight the importance of standardizing acquisition time points and MR vessel wall imaging protocols to interpret pathologic enhancement for the risk stratification of cerebrovascular pathologies.
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Affiliation(s)
- Abhinav Patel
- From the Department of Radiology, (A.P., R.N.A., D.R.C., A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Ramez N Abdalla
- From the Department of Radiology, (A.P., R.N.A., D.R.C., A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Radiology (R.N.A.), Ain Shams University, Cairo, Egypt
| | - Sammy Allaw
- Department of Radiology (S.A., T.J.C.), University of Chicago, Chicago, Illinois
| | - Donald R Cantrell
- From the Department of Radiology, (A.P., R.N.A., D.R.C., A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Neurology (D.R.C., A.S., F.C., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Ali Shaibani
- From the Department of Radiology, (A.P., R.N.A., D.R.C., A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Neurology (D.R.C., A.S., F.C., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Neurological Surgery (A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Frances Caprio
- Department of Neurology (D.R.C., A.S., F.C., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - David M Hasan
- Department of Neurological Surgery (D.M.H.), Duke University School of Medicine, Durham, North Carolina
| | - Ali Alaraj
- Department of Neurosurgery, College of Medicine (A.A.), University of Illinois at Chicago, Chicago, Illinois
| | - Sean P Polster
- Department of Neurological Surgery (S.P.P.), University of Chicago Pritzker School of Medicine, Chicago, Illinois
| | - Timothy J Carroll
- Department of Radiology (S.A., T.J.C.), University of Chicago, Chicago, Illinois
| | - Sameer A Ansari
- From the Department of Radiology, (A.P., R.N.A., D.R.C., A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Neurology (D.R.C., A.S., F.C., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Department of Neurological Surgery (A.S., S.A.A.), Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Song JW, Frame MY, Sellers RT, Klahn C, Fitzgerald K, Pomponio B, Schnall MD, Kasner SE, Loevner LA. Implementation of a Clinical Vessel Wall MR Imaging Program at an Academic Medical Center. AJNR Am J Neuroradiol 2024; 45:554-561. [PMID: 38514091 PMCID: PMC11288535 DOI: 10.3174/ajnr.a8191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/12/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND AND PURPOSE The slow adoption of new advanced imaging techniques into clinical practice has been a long-standing challenge. Principles of implementation science and the reach, effectiveness, adoption, implementation, maintenance (RE-AIM) framework were used to build a clinical vessel wall imaging program at an academic medical center. MATERIALS AND METHODS Six phases for implementing a clinical vessel wall MR imaging program were contextualized to the RE-AIM framework. Surveys were designed and distributed to MR imaging technologists and clinicians. Effectiveness was measured by surveying the perceived diagnostic value of vessel wall imaging among MR imaging technologists and clinicians, trends in case volumes in the clinical vessel wall imaging examination, and the number of coauthored vessel wall imaging-focused publications and abstracts. Adoption and implementation were measured by surveying stakeholders about workflow. Maintenance was measured by surveying MR imaging technologists on the value of teaching materials and online tip sheets. The Integration dimension was measured by the number of submitted research grants incorporating vessel wall imaging protocols. Feedback during the implementation phases and solicited through the survey is qualitatively summarized. Quantitative results are reported using descriptive statistics. RESULTS Six phases of the RE-AIM framework focused on the following: 1) determining patient and disease representation, 2) matching resource availability and patient access, 3) establishing vessel MR wall imaging (VWI) expertise, 4) forming interdisciplinary teams, 5) iteratively refining workflow, and 6) integrating for maintenance and scale. Survey response rates were 48.3% (MR imaging technologists) and 71.4% (clinicians). Survey results showed that 90% of the MR imaging technologists agreed that they understood how vessel wall MR imaging adds diagnostic value to patient care. Most clinicians (91.3%) reported that vessel wall MR imaging results changed their diagnostic confidence or patient management. Case volumes of clinical vessel wall MR imaging performed from 2019 to 2022 rose from 22 to 205 examinations. Workflow challenges reported by MR imaging technologists included protocoling examinations and scan length. Feedback from ordering clinicians included the need for education about VWI indications, limitations, and availability. During the 3-year implementation period of the program, the interdisciplinary teams coauthored 27 publications and abstracts and submitted 13 research grants. CONCLUSIONS Implementation of a clinical imaging program can be successful using the principles of the RE-AIM framework. Through iterative processes and the support of interdisciplinary teams, a vessel wall MR imaging program can be integrated through a dedicated clinical pipeline, add diagnostic value, support educational and research missions at an academic medical center, and become a center for excellence.
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Affiliation(s)
- Jae W Song
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Megan Y Frame
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rob T Sellers
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Connie Klahn
- Department of Radiology, (C.K.), Penn Presbyterian Hospital, Philadelphia, Pennsylvania
| | - Kevin Fitzgerald
- Department of Radiology (K.F.), Penn Radnor, Philadelphia, Pennsylvania
| | - Bridget Pomponio
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mitchell D Schnall
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Scott E Kasner
- Department of Neurology (S.E.K.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Laurie A Loevner
- From the Department of Radiology (J.W.S., M.Y.F., R.T.S., B.P., M.D.S., L.A.L.), Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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Xiao J, Poblete RA, Lerner A, Nguyen PL, Song JW, Sanossian N, Wilcox AG, Song SS, Lyden PD, Saver JL, Wasserman BA, Fan Z. MRI in the Evaluation of Cryptogenic Stroke and Embolic Stroke of Undetermined Source. Radiology 2024; 311:e231934. [PMID: 38652031 PMCID: PMC11070612 DOI: 10.1148/radiol.231934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 04/25/2024]
Abstract
Cryptogenic stroke refers to a stroke of undetermined etiology. It accounts for approximately one-fifth of ischemic strokes and has a higher prevalence in younger patients. Embolic stroke of undetermined source (ESUS) refers to a subgroup of patients with nonlacunar cryptogenic strokes in whom embolism is the suspected stroke mechanism. Under the classifications of cryptogenic stroke or ESUS, there is wide heterogeneity in possible stroke mechanisms. In the absence of a confirmed stroke etiology, there is no established treatment for secondary prevention of stroke in patients experiencing cryptogenic stroke or ESUS, despite several clinical trials, leaving physicians with a clinical dilemma. Both conventional and advanced MRI techniques are available in clinical practice to identify differentiating features and stroke patterns and to determine or infer the underlying etiologic cause, such as atherosclerotic plaques and cardiogenic or paradoxical embolism due to occult pelvic venous thrombi. The aim of this review is to highlight the diagnostic utility of various MRI techniques in patients with cryptogenic stroke or ESUS. Future trends in technological advancement for promoting the adoption of MRI in such a special clinical application are also discussed.
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Affiliation(s)
- Jiayu Xiao
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Roy A. Poblete
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Alexander Lerner
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Peggy L. Nguyen
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Jae W. Song
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Nerses Sanossian
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Alison G. Wilcox
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Shlee S. Song
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Patrick D. Lyden
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Jeffrey L. Saver
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Bruce A. Wasserman
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
| | - Zhaoyang Fan
- From the Departments of Radiology (J.X., A.L., A.G.W., Z.F.),
Neurology (R.A.P., P.L.N., N.S., P.D.L.), Physiology and Neuroscience (P.D.L.),
Biomedical Engineering (Z.F.), and Radiation Oncology (Z.F.), University of
Southern California, 2250 Alcazar St, CSC Room 104, Los Angeles, CA 90033;
Department of Radiology, Hospital of the University of Pennsylvania,
Philadelphia, Pa (J.W.S.); Department of Neurology, Cedars-Sinai Medical Center,
Los Angeles, Calif (S.S.S.); Comprehensive Stroke Center and Department of
Neurology, David Geffen School of Medicine, University of California–Los
Angeles, Los Angeles, Calif (J.L.S.); Department of Diagnostic Radiology and
Nuclear Medicine, University of Maryland–Baltimore, Baltimore, Md
(B.A.W.); and Department of Radiology and Radiological Sciences, Johns Hopkins
University, Baltimore, Md (B.A.W.)
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Guggenberger KV, Vogt ML, Song JW, Weng AM, Fröhlich M, Schmalzing M, Venhoff N, Hillenkamp J, Pham M, Meckel S, Bley TA. Intraorbital findings in giant cell arteritis on black blood MRI. Eur Radiol 2023; 33:2529-2535. [PMID: 36394601 PMCID: PMC10017783 DOI: 10.1007/s00330-022-09256-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/25/2022] [Accepted: 10/19/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Blindness is a feared complication of giant cell arteritis (GCA). However, the spectrum of pathologic orbital imaging findings on magnetic resonance imaging (MRI) in GCA is not well understood. In this study, we assess inflammatory changes of intraorbital structures on black blood MRI (BB-MRI) in patients with GCA compared to age-matched controls. METHODS In this multicenter case-control study, 106 subjects underwent BB-MRI. Fifty-six patients with clinically or histologically diagnosed GCA and 50 age-matched controls without clinical or laboratory evidence of vasculitis were included. All individuals were imaged on a 3-T MR scanner with a post-contrast compressed-sensing (CS) T1-weighted sampling perfection with application-optimized contrasts using different flip angle evolution (SPACE) BB-MRI sequence. Imaging results were correlated with available clinical symptoms. RESULTS Eighteen of 56 GCA patients (32%) showed inflammatory changes of at least one of the intraorbital structures. The most common finding was enhancement of at least one of the optic nerve sheaths (N = 13, 72%). Vessel wall enhancement of the ophthalmic artery was unilateral in 8 and bilateral in 3 patients. Enhancement of the optic nerve was observed in one patient. There was no significant correlation between imaging features of inflammation and clinically reported orbital symptoms (p = 0.10). None of the age-matched control patients showed any inflammatory changes of intraorbital structures. CONCLUSIONS BB-MRI revealed inflammatory findings in the orbits in up to 32% of patients with GCA. Optic nerve sheath enhancement was the most common intraorbital inflammatory change on BB-MRI. MRI findings were independent of clinically reported orbital symptoms. KEY POINTS • Up to 32% of GCA patients shows signs of inflammation of intraorbital structures on BB-MRI. • Enhancement of the optic nerve sheath is the most common intraorbital finding in GCA patients on BB-MRI. • Features of inflammation of intraorbital structures are independent of clinically reported symptoms.
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Affiliation(s)
- Konstanze V Guggenberger
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Oberduerrbacher Straße 6, 97080, Wuerzburg, Germany.
| | - Marius L Vogt
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Jae W Song
- Department of Radiology, Division of Neuroradiology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Andreas M Weng
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Oberduerrbacher Straße 6, 97080, Wuerzburg, Germany
| | - Matthias Fröhlich
- Department of Internal Medicine II, Rheumatology and Clinical Immunology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Marc Schmalzing
- Department of Internal Medicine II, Rheumatology and Clinical Immunology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Nils Venhoff
- Department of Rheumatology and Clinical Immunology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jost Hillenkamp
- Department of Ophthalmology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Mirko Pham
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Stephan Meckel
- Department of Neuroradiology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,RKH Klinikum Ludwigsburg, Ludwigsburg, Germany
| | - Thorsten A Bley
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Oberduerrbacher Straße 6, 97080, Wuerzburg, Germany
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Evaluation of High Intracranial Plaque Prevalence in Type 2 Diabetes Using Vessel Wall Imaging on 7 T Magnetic Resonance Imaging. Brain Sci 2023; 13:brainsci13020217. [PMID: 36831760 PMCID: PMC9954742 DOI: 10.3390/brainsci13020217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/10/2023] [Accepted: 01/22/2023] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND While type 2 diabetes (T2D) is a major risk for ischemic stroke, the associated vessel wall characteristics remain essentially unknown. This study aimed to clarify intracranial vascular changes on three-dimensional vessel wall imaging (3D-VWI) using fast spin echo by employing 7Tesla (7T) magnetic resonance imaging (MRI) in T2D patients without advanced atherosclerosis as compared to healthy controls. METHODS In 48 T2D patients and 35 healthy controls, the prevalence of cerebral small vessel diseases and intracranial plaques were evaluated by 3D-VWI with 7T MRI. RESULTS The prevalence rate of lacunar infarction was significantly higher in T2D than in controls (n = 8 in T2D vs. n = 0 in control, p = 0.011). The mean number of intracranial plaques in both anterior and posterior circulation of each subject was significantly larger in T2D than in controls (2.23 in T2D vs. 0.94 in control, p < 0.01). In T2D patients, gender was associated with the presence of intracranial plaques. CONCLUSION This is the first study to demonstrate the high prevalence of intracranial plaque in T2D patients with neither confirmed atherosclerotic disease nor symptoms by performing intracranial 3D-VWI employing 7TMRI. Investigation of intracranial VWI with 7T MRI is expected to provide novel insights allowing early intensive risk management for prevention of ischemic stroke in T2D patients.
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Jiang B, Mackay MT, Stence N, Domi T, Dlamini N, Lo W, Wintermark M. Neuroimaging in Pediatric Stroke. Semin Pediatr Neurol 2022; 43:100989. [PMID: 36344022 DOI: 10.1016/j.spen.2022.100989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Abstract
Pediatric stroke is unfortunately not a rare condition. It is associated with severe disability and mortality because of the complexity of potential clinical manifestations, and the resulting delay in seeking care and in diagnosis. Neuroimaging plays an important role in the multidisciplinary response for pediatric stroke patients. The rapid development of adult endovascular thrombectomy has created a new momentum in health professionals caring for pediatric stroke patients. Neuroimaging is critical to make decisions of identifying appropriate candidates for thrombectomy. This review article will review current neuroimaging techniques, imaging work-up strategies and special considerations in pediatric stroke. For resources limited areas, recommendation of substitute imaging approaches will be provided. Finally, promising new techniques and hypothesis-driven research protocols will be discussed.
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Affiliation(s)
- Bin Jiang
- Department of Radiology, Neuroradiology Section, Stanford University, Stanford, CA.
| | - Mark T Mackay
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Victoria, Australia.
| | - Nicholas Stence
- Department of Radiology, pediatric Neuroradiology Section, University of Colorado School of Medicine, Aurora, CO
| | - Trish Domi
- Department of Neurology, Hospital for Sick Children, Toronto, Canada.
| | - Nomazulu Dlamini
- Department of Neurology, Hospital for Sick Children, Toronto, Canada.
| | - Warren Lo
- Department of Pediatrics and Neurology, The Ohio State University & Nationwide Children's Hospital, Columbus, OH.
| | - Max Wintermark
- Department of Neuroradiology, University of Texas MD Anderson Center, Houston, TX.
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Abstract
Vessel wall MR imaging (VW-MRI) has been introduced into clinical practice and applied to a variety of diseases, and its usefulness has been reported. High-resolution VW-MRI is essential in the diagnostic workup and provides more information than other routine MR imaging protocols. VW-MRI is useful in assessing lesion location, morphology, and severity. Additional information, such as vessel wall enhancement, which is useful in the differential diagnosis of atherosclerotic disease and vasculitis could be assessed by this special imaging technique. This review describes the VW-MRI technique and its clinical applications in arterial disease, venous disease, vasculitis, and leptomeningeal disease.
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8
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Sakai Y, Lehman VT, Eisenmenger LB, Obusez EC, Kharal GA, Xiao J, Wang GJ, Fan Z, Cucchiara BL, Song JW. Vessel wall MR imaging of aortic arch, cervical carotid and intracranial arteries in patients with embolic stroke of undetermined source: A narrative review. Front Neurol 2022; 13:968390. [PMID: 35968273 PMCID: PMC9366886 DOI: 10.3389/fneur.2022.968390] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Despite advancements in multi-modal imaging techniques, a substantial portion of ischemic stroke patients today remain without a diagnosed etiology after conventional workup. Based on existing diagnostic criteria, these ischemic stroke patients are subcategorized into having cryptogenic stroke (CS) or embolic stroke of undetermined source (ESUS). There is growing evidence that in these patients, non-cardiogenic embolic sources, in particular non-stenosing atherosclerotic plaque, may have significant contributory roles in their ischemic strokes. Recent advancements in vessel wall MRI (VW-MRI) have enabled imaging of vessel walls beyond the degree of luminal stenosis, and allows further characterization of atherosclerotic plaque components. Using this imaging technique, we are able to identify potential imaging biomarkers of vulnerable atherosclerotic plaques such as intraplaque hemorrhage, lipid rich necrotic core, and thin or ruptured fibrous caps. This review focuses on the existing evidence on the advantages of utilizing VW-MRI in ischemic stroke patients to identify culprit plaques in key anatomical areas, namely the cervical carotid arteries, intracranial arteries, and the aortic arch. For each anatomical area, the literature on potential imaging biomarkers of vulnerable plaques on VW-MRI as well as the VW-MRI literature in ESUS and CS patients are reviewed. Future directions on further elucidating ESUS and CS by the use of VW-MRI as well as exciting emerging techniques are reviewed.
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Affiliation(s)
- Yu Sakai
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Vance T. Lehman
- Department of Radiology, The Mayo Clinic, Rochester, MN, United States
| | - Laura B. Eisenmenger
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, United States
| | | | - G. Abbas Kharal
- Department of Neurology, Cerebrovascular Center, Neurological Institute, Cleveland, OH, United States
| | - Jiayu Xiao
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Grace J. Wang
- Department of Vascular Surgery and Endovascular Therapy, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Zhaoyang Fan
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Brett L. Cucchiara
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - Jae W. Song
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
- *Correspondence: Jae W. Song
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9
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Xiao J, Song SS, Schlick KH, Xia S, Jiang T, Han T, Jackson RJ, Diniz MA, Dumitrascu OM, Maya MM, Lyden PD, Li D, Yang Q, Fan Z. Disparate trends of atherosclerotic plaque evolution in stroke patients under 18-month follow-up: a 3D whole-brain magnetic resonance vessel wall imaging study. Neuroradiol J 2022; 35:42-52. [PMID: 34159814 PMCID: PMC8826292 DOI: 10.1177/19714009211026920] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE The trend of atherosclerotic plaque feature evolution is unclear in stroke patients with and without recurrence. We aimed to use three-dimensional whole-brain magnetic resonance vessel wall imaging to quantify the morphological changes of causative lesions during medical therapy in patients with symptomatic intracranial atherosclerotic disease. METHODS Patients with acute ischemic stroke attributed to intracranial atherosclerotic disease were retrospectively enrolled if they underwent both baseline and follow-up magnetic resonance vessel wall imaging. The morphological features of the causative plaque, including plaque volume, peak normalized wall index, maximum wall thickness, degree of stenosis, pre-contrast plaque-wall contrast ratio, and post-contrast plaque enhancement ratio, were quantified and compared between the non-recurrent and recurrent groups (defined as the recurrence of a vascular event within 18 months of stroke). RESULTS Twenty-nine patients were included in the final analysis. No significant differences were found in plaque features in the baseline scan between the non-recurrent (n = 22) and recurrent groups (n = 7). The changes in maximum wall thickness (-13.32% vs. 8.93%, P = 0.026), plaque-wall contrast ratio (-0.82% vs. 3.42%, P = 0.005) and plaque enhancement ratio (-11.03% vs. 9.75%, P = 0.019) were significantly different between the non-recurrent and recurrent groups. Univariable logistic regression showed that the increase in plaque-wall contrast ratio (odds ratio 3.22, 95% confidence interval 1.55-9.98, P = 0.003) was related to stroke recurrence. CONCLUSION Morphological changes of plaque features on magnetic resonance vessel wall imaging demonstrated distinct trends in symptomatic intracranial atherosclerotic disease patients with and without stroke recurrence.
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Affiliation(s)
- Jiayu Xiao
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA
| | - Shlee S Song
- Department of Neurology,
Cedars-Sinai Medical Center, USA
| | | | - Shuang Xia
- Department of Radiology, Tianjin
First Central Hospital, China
| | - Tao Jiang
- Department of Radiology, Beijing
Chaoyang Hospital, China
| | - Tong Han
- Department of Radiology, Tianjin
Huanhu Hospital, China
| | | | - Marcio A Diniz
- Biostatistics and Bioinformatics
Research Center, Cedars-Sinai Medical Center, USA
| | | | - Marcel M Maya
- Department of Imaging, Cedars-Sinai
Medical Center, USA
| | - Patrick D Lyden
- Department of Physiology and
Neuroscience, Zilkha Neurogenetic Institute, University of Southern California,
USA
| | - Debiao Li
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA,Department of Bioengineering,
University of California, Los Angeles, USA
| | - Qi Yang
- Department of Radiology, Beijing
Chaoyang Hospital, China
| | - Zhaoyang Fan
- Biomedical Imaging Research
Institute, Cedars-Sinai Medical Center, USA,Departments of Radiology and
Radiation Oncology, University of Southern California, USA,Zhaoyang Fan, 2250 Alcazar Street, Room
104, Los Angeles, CA, USA.
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10
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Mattay RR, Saucedo JF, Lehman VT, Xiao J, Obusez EC, Raymond SB, Fan Z, Song JW. Current Clinical Applications of Intracranial Vessel Wall MR Imaging. Semin Ultrasound CT MR 2021; 42:463-473. [PMID: 34537115 DOI: 10.1053/j.sult.2021.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Intracranial vessel wall MR imaging (VWI) is increasingly being used as a valuable adjunct to conventional angiographic imaging techniques. This article will provide an updated review on intracranial VWI protocols and image interpretation. We review VWI technical considerations, describe common VWI imaging features of different intracranial vasculopathies and show illustrative cases. We review the role of VWI for differentiating among steno-occlusive vasculopathies, such as intracranial atherosclerotic plaque, dissections and Moyamoya disease. We also highlight how VWI may be used for the diagnostic work-up and surveillance of patients with vasculitis of the central nervous system and cerebral aneurysms.
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Affiliation(s)
- Raghav R Mattay
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA
| | - Jose F Saucedo
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Jiayu Xiao
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | | | - Scott B Raymond
- Department of Radiology, University of Vermont Medical Center, Burlington, VT
| | - Zhaoyang Fan
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Jae W Song
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA.
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11
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Arnett N, Pavlou A, Burke MP, Cucchiara BL, Rhee RL, Song JW. Vessel wall MR imaging of central nervous system vasculitis: a systematic review. Neuroradiology 2021; 64:43-58. [PMID: 33938989 DOI: 10.1007/s00234-021-02724-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE Beyond vessel wall enhancement, little is understood about vessel wall MR imaging (VW-MRI) features of vasculitis affecting the central nervous system (CNS). We reviewed vessel wall MR imaging patterns of inflammatory versus infectious vasculitis and also compared imaging patterns for intracranial versus extracranial arteries of the head and neck. METHODS Studies reporting vasculitis of the CNS/head and neck and included MR imaging descriptions of vessel wall features were identified by searching PubMed, Scopus, Cochrane, Web of Science, and EMBASE up to June 10, 2020. From 6065 publications, 115 met the inclusion criteria. Data on study characteristics, vasculitis type, MR details, and VW-MRI descriptions were extracted. RESULTS Studies used VW-MRI for inflammatory (64%), infectious (17%), or both inflammatory and infectious vasculitides (19%). Vasculitis affecting intracranial versus extracranial arteries were reported in 58% and 39% of studies, respectively. Commonly reported VW-MRI features were vessel wall enhancement (89%), thickening (72%), edema (10%), and perivascular enhancement (16%). Inflammatory vasculitides affecting the intracranial arteries were less frequently reported to have vessel wall thickening (p = 0.006) and perivascular enhancement (p = 0.001) than extracranial arteries. Varicella zoster/herpes simplex vasculitis (VZV/HSV, 45%) and primary angiitis of the CNS (PACNS, 22%) were the most commonly reported CNS infectious and inflammatory vasculitides, respectively. Patients with VZV/HSV vasculitis more frequently showed decreased or resolution of vessel wall enhancement after therapy compared to PACNS (89% versus 59%). CONCLUSIONS To establish imaging biomarkers of vessel wall inflammation in the CNS, VW-MRI features of vasculitis accounting for disease mechanism and anatomy should be better understood.
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Affiliation(s)
- Nathan Arnett
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Athanasios Pavlou
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Morgan P Burke
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Brett L Cucchiara
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Rennie L Rhee
- Department of Rheumatology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Jae W Song
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA.
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12
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Hosur B, Bhatia V, Kumar A, Karthigeyan M. Rete middle cerebral artery: a rare association with anterior cerebral artery aneurysm rupture. BMJ Case Rep 2021; 14:14/2/e240219. [PMID: 33526539 PMCID: PMC7852965 DOI: 10.1136/bcr-2020-240219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Haemodynamic flow-related stress at the vessel curvatures is an important risk factor for intracranial aneurysmal growth and rupture. The rete middle cerebral artery (MCA) is a rare entity causing hyperdynamic blood flow into the ipsilateral anterior cerebral artery (ACA), especially when the contralateral A1-segment is non-dominant. Ruling out the clinicoradiological mimics like vasculitis, moyamoya and chronic occlusive disease with vessel wall imaging and detailed investigations helps manage the clinical entity effectively. We present a successfully managed case of ruptured ACA aneurysm at the acute curvature of the A1-A2 junction associated with ipsilateral rete MCA. Pre-emptive diagnosis of the rete MCA can aid preventive strategies to manage rupture and regrowth of the aneurysm at the points of flow-related stress.
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Affiliation(s)
- Bharat Hosur
- Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vikas Bhatia
- Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ajay Kumar
- Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhivanan Karthigeyan
- Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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13
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Song JW, Pavlou A, Xiao J, Kasner SE, Fan Z, Messé SR. Vessel Wall Magnetic Resonance Imaging Biomarkers of Symptomatic Intracranial Atherosclerosis: A Meta-Analysis. Stroke 2020; 52:193-202. [PMID: 33370193 DOI: 10.1161/strokeaha.120.031480] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Intracranial atherosclerotic disease is a common cause of stroke worldwide. Intracranial vessel wall magnetic resonance imaging may be able to identify imaging biomarkers of symptomatic plaque. We performed a meta-analysis to evaluate the strength of association of imaging features of symptomatic plaque leading to downstream ischemic events. Effects on the strength of association were also assessed accounting for possible sources of bias and variability related to study design and magnetic resonance parameters. METHODS PubMed, Scopus, Web of Science, EMBASE, and Cochrane databases were searched up to October 2019. Two independent reviewers extracted data on study design, vessel wall magnetic resonance imaging techniques, and imaging end points. Per-lesion odds ratios (OR) were calculated and pooled using a bivariate random-effects model. Subgroup analyses, sensitivity analysis, and evaluation of publication bias were also performed. RESULTS Twenty-one articles met inclusion criteria (1750 lesions; 1542 subjects). Plaque enhancement (OR, 7.42 [95% CI, 3.35-16.43]), positive remodeling (OR, 5.60 [95% CI, 2.23-14.03]), T1 hyperintensity (OR, 2.05 [95% CI, 1.27-3.32]), and surface irregularity (OR, 4.50 [95% CI, 1.39-8.57]) were significantly associated with downstream ischemic events. T2 signal intensity was not significant (P=0.59). Plaque enhancement was significantly associated with downstream ischemic events in all subgroup analyses and showed stronger associations when measured in retrospectively designed studies (P=0.02), by a radiologist as a rater (P<0.001), and on lower vessel wall magnetic resonance imaging spatial resolution sequences (P=0.02). CONCLUSIONS Plaque enhancement, positive remodeling, T1 hyperintensity, and surface irregularity emerged as strong imaging biomarkers of symptomatic plaque in patients with ischemic events. Plaque enhancement remained significant accounting for sources of bias and variability in both study design and instrument. Future studies evaluating plaque enhancement as a predictive marker for stroke recurrence with larger sample sizes would be valuable.
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Affiliation(s)
- Jae W Song
- Departments of Radiology (J.W.S., A.P.), Hospital of the University of Pennsylvania, Philadelphia
| | - Athanasios Pavlou
- Departments of Radiology (J.W.S., A.P.), Hospital of the University of Pennsylvania, Philadelphia
| | - Jiayu Xiao
- Department of Biomedical Sciences, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA (J.X., Z.F.)
| | - Scott E Kasner
- Neurology (S.E.K., S.R.M.), Hospital of the University of Pennsylvania, Philadelphia
| | - Zhaoyang Fan
- Department of Biomedical Sciences, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA (J.X., Z.F.)
| | - Steven R Messé
- Neurology (S.E.K., S.R.M.), Hospital of the University of Pennsylvania, Philadelphia
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14
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Song JW, Fan Z. Emerging multi-modal diagnostic approaches for moyamoya disease. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1208. [PMID: 33178740 PMCID: PMC7607114 DOI: 10.21037/atm-20-4215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jae W Song
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - Zhaoyang Fan
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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15
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Song JW, Pavlou A, Burke MP, Shou H, Atsina KB, Xiao J, Loevner LA, Mankoff D, Fan Z, Kasner SE. Imaging endpoints of intracranial atherosclerosis using vessel wall MR imaging: a systematic review. Neuroradiology 2020; 63:847-856. [PMID: 33029735 DOI: 10.1007/s00234-020-02575-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/29/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE The vessel wall MR imaging (VWI) literature was systematically reviewed to assess the criteria and measurement methods of VWI-related imaging endpoints for symptomatic intracranial plaque in patients with ischemic events. METHODS PubMed, Scopus, Web of Science, EMBASE, and Cochrane databases were searched up to October 2019. Two independent reviewers extracted data from 47 studies. A modified Guideline for Reporting Reliability and Agreement Studies was used to assess completeness of reporting. RESULTS The specific VWI-pulse sequence used to identify plaque was reported in 51% of studies. A VWI-based criterion to define plaque was reported in 38% of studies. A definition for culprit plaque was reported in 40% of studies. Frequently scored qualitative imaging endpoints were plaque quadrant (21%) and enhancement (21%). Frequently measured quantitative imaging endpoints were stenosis (19%), lumen area (15%), and remodeling index (14%). Reproducibility for all endpoints ranged from good to excellent (range: ICCT1 hyperintensity = 0.451 to ICCstenosis = 0.983). However, rater specialty and years of experience varied among studies. CONCLUSIONS Investigators are using different criteria to identify and measure VWI-imaging endpoints for culprit intracranial plaque. Early awareness of these differences to address methods of acquisition and measurement will help focus research resources and efforts in technique optimization and measurement reproducibility. Consensual definitions to detect plaque will be important to develop automatic lesion detection tools particularly in the era of radiomics.
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Affiliation(s)
- Jae W Song
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA.
| | - Athanasios Pavlou
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Morgan P Burke
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Haochang Shou
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Kofi-Buaku Atsina
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Jiayu Xiao
- Department of Biomedical Sciences, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Laurie A Loevner
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - David Mankoff
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
| | - Zhaoyang Fan
- Department of Biomedical Sciences, Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Scott E Kasner
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
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16
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Song JW, Wasserman BA. Vessel wall MR imaging of intracranial atherosclerosis. Cardiovasc Diagn Ther 2020; 10:982-993. [PMID: 32968655 DOI: 10.21037/cdt-20-470] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intracranial atherosclerotic disease (ICAD) is one of the most common causes of ischemic stroke worldwide. Along with high recurrent stroke risk from ICAD, its association with cognitive decline and dementia leads to a substantial decrease in quality of life and a high economic burden. Atherosclerotic lesions can range from slight wall thickening with plaques that are angiographically occult to severely stenotic lesions. Recent advances in intracranial high resolution vessel wall MR (VW-MR) imaging have enabled imaging beyond the lumen to characterize the vessel wall and its pathology. This technique has opened new avenues of research for identifying vulnerable plaque in the setting of acute ischemic stroke as well as assessing ICAD burden and its associations with its sequela, such as dementia. We now understand more about the intracranial arterial wall, its ability to remodel with disease and how we can use VW-MR to identify angiographically occult lesions and assess medical treatment responses, for example, to statin therapy. Our growing understanding of ICAD with intracranial VW-MR imaging can profoundly impact diagnosis, therapy, and prognosis for ischemic stroke with the possibility of lesion-based risk models to tailor and personalize treatment. In this review, we discuss the advantages of intracranial VW-MR imaging for ICAD, the potential of bioimaging markers to identify vulnerable intracranial plaque, and future directions of artificial intelligence and its utility for lesion scoring and assessment.
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Affiliation(s)
- Jae W Song
- Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
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