1
|
Pannell JS, Corey AS, Shih RY, Austin MJ, Chu S, Davis MA, Ducruet AF, Hunt CH, Ivanidze J, Kalnins A, Lacy ME, Lo BM, Setzen G, Shaines MD, Soares BP, Soderlund KA, Thaker AA, Wang LL, Burns J. ACR Appropriateness Criteria® Cerebrovascular Diseases-Stroke and Stroke-Related Conditions. J Am Coll Radiol 2024; 21:S21-S64. [PMID: 38823945 DOI: 10.1016/j.jacr.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 06/03/2024]
Abstract
Cerebrovascular disease encompasses a vast array of conditions. The imaging recommendations for stroke-related conditions involving noninflammatory steno-occlusive arterial and venous cerebrovascular disease including carotid stenosis, carotid dissection, intracranial large vessel occlusion, and cerebral venous sinus thrombosis are encompassed by this document. Additional imaging recommendations regarding complications of these conditions including intraparenchymal hemorrhage and completed ischemic strokes are also discussed. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.
Collapse
Affiliation(s)
| | - Amanda S Corey
- Panel Chair, Atlanta VA Health Care System and Emory University, Atlanta, Georgia
| | - Robert Y Shih
- Panel Vice Chair, Uniformed Services University, Bethesda, Maryland
| | | | - Sammy Chu
- University of Washington, Seattle, Washington; University of British Columbia, Vancouver, British Columbia, Canada
| | - Melissa A Davis
- Yale University School of Medicine, New Haven, Connecticut; Committee on Emergency Radiology-GSER
| | - Andrew F Ducruet
- Barrow Neurological Institute, Phoenix, Arizona, Neurosurgery expert
| | - Christopher H Hunt
- Mayo Clinic, Rochester, Minnesota; Commission on Nuclear Medicine and Molecular Imaging
| | | | | | - Mary E Lacy
- Washington State University, Spokane, Washington; American College of Physicians
| | - Bruce M Lo
- Sentara Norfolk General Hospital/Eastern Virginia Medical School, Norfolk, Virginia; American College of Emergency Physicians
| | - Gavin Setzen
- Albany ENT & Allergy Services, Albany, New York; American Academy of Otolaryngology-Head and Neck Surgery
| | - Matthew D Shaines
- Albert Einstein College of Medicine Montefiore Medical Center, Bronx, New York, Primary care physician
| | - Bruno P Soares
- Stanford University School of Medicine, Stanford, California
| | - Karl A Soderlund
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Naval Medical Center Portsmouth, Portsmouth, Virginia
| | | | - Lily L Wang
- University of Cincinnati Medical Center, Cincinnati, Ohio
| | - Judah Burns
- Specialty Chair, Montefiore Medical Center, Bronx, New York
| |
Collapse
|
2
|
Zhou J, He R, Xu X, Wei X, Li M, Wang F, Li Y. Diffusion kurtosis imaging in patients with tissue-negative transient ischemic attack. Front Neurol 2022; 13:1052310. [DOI: 10.3389/fneur.2022.1052310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022] Open
Abstract
Approximately 50–60% of patients with a clinical transient ischemic attack (TIA) do not have diffusion-weighted imaging (DWI) evidence of cerebral ischemia. The purpose of this study was to assess the added diagnostic value of diffusion kurtosis imaging (DKI) in the evaluation of patients with TIA who have normal DWI findings. From September 2014 to May 2017, a total of 179 consecutive patients with suspected TIA were eligible for enrollment in our study. The inclusion criteria were a confirmed diagnosis of TIA confirmed by a stroke neurologist, MRI (including DWI and DKI) within 24 h after symptom onset, no stroke history, and no DWI lesion. A follow-up DWI was performed to establish stroke recurrence within a period of 90 days. A total of 98 patients who had no lesions on the baseline DWI were included for data analysis. Of these 98 patients, 31 (31.6%) had positive findings on the initial DKI. In 29 of the 31 (93.5%) patients, the location of the abnormality observed on DKI was consistent with the clinical symptoms. During the 90-day follow-up period, 14 (14.3%) patients developed recurrent stroke. The prevalence of recurrent stroke was higher in the DKI-positive group than in the DKI-negative group (29.0% vs. 7.5%, p = 0.01). A comparison between the patients with and without recurrent stroke showed that an abnormality on the baseline DKI was associated with stroke recurrence. Furthermore, 8 of the 9 stroke patients in the DKI-positive group developed a new ischemic lesion in the artery territory corresponding to the initial DKI abnormality. The new findings suggest the predictive value of DKI on the recurrence of stroke in the patients with TIA who have negative findings on conventional DWI.
Collapse
|
3
|
Nouri-Vaskeh M, Khalili N, Sadighi A, Yazdani Y, Zand R. Biomarkers for Transient Ischemic Attack: A Brief Perspective of Current Reports and Future Horizons. J Clin Med 2022; 11:jcm11041046. [PMID: 35207321 PMCID: PMC8877275 DOI: 10.3390/jcm11041046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 02/05/2023] Open
Abstract
Cerebrovascular disease is the leading cause of long-term disability in the world and the third-leading cause of death in the United States. The early diagnosis of transient ischemic attack (TIA) is of great importance for reducing the mortality and morbidity of cerebrovascular diseases. Patients with TIA have a high risk of early subsequent ischemic stroke and the development of permanent nervous system lesions. The diagnosis of TIA remains a clinical diagnosis that highly relies on the patient's medical history assessment. There is a growing list of biomarkers associated with different components of the ischemic cascade in the brain. In this review, we take a closer look at the biomarkers of TIA and their validity with a focus on the more clinically important ones using recent evidence of their reliability for practical usage.
Collapse
Affiliation(s)
- Masoud Nouri-Vaskeh
- Tropical and Communicable Diseases Research Centre, Iranshahr University of Medical Sciences, Iranshahr 7618815676, Iran;
- Network of Immunity in Infection, Malignancy and Autoimmunity, Universal Scientific Education and Research Network, Tehran 1419733151, Iran
| | - Neda Khalili
- School of Medicine, Tehran University of Medical Sciences, Tehran 1449614535, Iran;
- Cancer Immunology Project (CIP), Universal Scientific Education and Research Network (USERN), Tehran 1419733151, Iran
| | - Alireza Sadighi
- Neuroscience Institute, Geisinger Health System, Danville, PA 17822, USA;
| | - Yalda Yazdani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran;
| | - Ramin Zand
- Neuroscience Institute, Geisinger Health System, Danville, PA 17822, USA;
- Neuroscience Institute, Pennsylvania State University, State College, PA 16801, USA
- Correspondence: or ; Tel.: +1-570-808-7330; Fax: +1-570-808-3209
| |
Collapse
|
4
|
Lodha N, Patel P, Harrell J, Casamento-Moran A, Zablocki V, Christou EA, Poisson SN. Motor impairments in transient ischemic attack increase the odds of a positive diffusion-weighted imaging: A meta-analysis. Restor Neurol Neurosci 2020; 37:509-521. [PMID: 31594263 DOI: 10.3233/rnn-190940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Unilateral motor impairment is a key symptom used in the diagnosis of transient ischemic attack (TIA). Diffusion-weighted imaging (DWI) is a promising diagnostic tool for detecting ischemic lesions. While both motor impairments and DWI abnormalities are linked to the diagnosis of TIA, the association between these prognostic factors is not well understood. OBJECTIVE To examine the association between unilateral motor impairments and the odds of a positive DWI in TIA. Further, to determine whether the time between symptom onset and neuroimaging (delay to scan) influences the odds of a positive DWI. METHODS We used PRISMA guidelines to conduct a systematic search from 1989 to 2018. We included studies that reported number of individuals with/without unilateral motor symptoms and a positive/negative DWI. RESULTS Twenty-four studies from North America, Australia, Asia, and Europe were submitted to a meta-analysis. A pooled odds ratio of 1.80 (95% CI, 1.45-2.24, p = 0.00; I2 = 57.38) suggested that the odds of a positive DWI are greater in TIA individuals who experience motor symptoms as compared with those who experience no motor symptoms. Further, increasing the time delay to scan from the symptom onset (>2 days) did not influence the odds of a positive DWI as compared with an earlier scan (≤2 days). CONCLUSIONS The current meta-analysis provides cumulative evidence from 6710 individuals with TIA that the presence of motor symptoms increases the odds of a positive DWI by two-folds. These findings transform the clinical perception into evidence-based knowledge that motor impairments elevate the risk for brain tissue damage. Unilateral motor impairments in a cerebrovascular event should increase a physician's suspicion of detecting brain infarctions. These findings may influence the clinical management of TIA by generating faster response to motor impairments in TIA and accelerating referral to specialized stroke clinic.
Collapse
Affiliation(s)
- Neha Lodha
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, USA
| | - Prakruti Patel
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, USA
| | - Jane Harrell
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | | | - Victoria Zablocki
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, USA
| | - Evangelos A Christou
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - Sharon N Poisson
- Department of Neurology, University of Colorado, Aurora, CO, USA
| |
Collapse
|
5
|
Wang Y, Xiao J, Luo Y, Wang S, Liang H, Jin L. Risk factors of perfusion and diffusion abnormalities on MRI in hemispheric TIA: a case-control study. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:808. [PMID: 32042824 DOI: 10.21037/atm.2019.12.69] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background To assess the prevalence and potential predictors of MR diffusion and perfusion abnormalities in a Chinese population with hemispheric transient ischemic attacks (TIA). Methods Patients with temporary (<24 hours) focal cerebral dysfunction of probable vascular origin were considered to be potential candidates for this study in the emergency room. Those who were admitted to the stroke center of Shanghai Fourth People's Hospital affiliated to Tongji University between January 2015 and December 2018 were recruited to the present study. MRI, including both diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI), was performed within 7 days after the last symptom attack. Time to maximum of the residue function (Tmax) maps were auto-evaluated using the RAPID software to determine hypoperfusion. Multivariate analysis was used to assess the correlation of MR findings with clinical variables, medical history, cardio-metabolic characteristics, and the ABCD2 scores (age, blood pressure, clinical features, symptom duration and diabetes). Results Sixty-six out of 207 patients met the inclusion criteria. Baseline MRI showed DWI lesions in 20 patients (30.3%). The prevalence of MR perfusion Tmax >4 s >0 mL and ≥10 mL were 77.3% (51/66) and 50% (33/66), respectively. Male patients tended to develop DWI lesions after a TIA. Limb weakness was an independent factor associated with MR perfusion abnormalities (Tmax >4 s ≥10 mL) in this Chinese population (adjusted OR =7.41, 95% CI: 1.57-34.89, P=0.011). Conclusions Our results suggest that limb weakness is a strong predictor of perfusion abnormalities calculated by RAPID on Tmax maps of hemispheric TIA patients without DWI positive findings. Male patients are more likely to develop cerebral infarction.
Collapse
Affiliation(s)
- Yue Wang
- Department of Neurology, Shanghai Fourth People's Hospital affiliated to Tongji University School of Medicine, Shanghai 200081, China.,Department of Neurology, Shanghai Tongji Hospital, Tongji University, Shanghai 200065, China.,Department of Neurology, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai 200081, China
| | - Jingjing Xiao
- Department of Neurology, Shanghai Fourth People's Hospital affiliated to Tongji University School of Medicine, Shanghai 200081, China
| | - Yu Luo
- Department of Radiology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai 200081, China
| | - Shaoshi Wang
- Department of Neurology, Shanghai Fourth People's Hospital affiliated to Tongji University School of Medicine, Shanghai 200081, China
| | - Huazheng Liang
- Department of Neurology, Shanghai Fourth People's Hospital affiliated to Tongji University School of Medicine, Shanghai 200081, China.,Department of Neurology, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai 200081, China
| | - Lingjing Jin
- Department of Neurology, Shanghai Tongji Hospital, Tongji University, Shanghai 200065, China
| |
Collapse
|
6
|
Lövblad KO, Bouchez L, Altrichter S, Ratib O, Machi P, Vargas MI, Sztajzel R. The role of advanced neuroimaging techniques in ischemic stroke prevention. CLINICAL AND TRANSLATIONAL NEUROSCIENCE 2019. [DOI: 10.1177/2514183x19881446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
In great part due to recent advances in medical technology, ischemic cerebral stroke has become an increasingly treatable condition, which requires urgent measures and which rely on pharmacological and/or interventional measures. Due to its high prevalence, preventive measures should also be undertaken, and this is a situation where the use of advanced neuroimaging techniques could be helpful in certain underlying diseases. What is proposed here is to discuss how modern neuroimaging techniques (advanced magnetic resonance (MR) techniques and/or nuclear medicine techniques such as positron emission tomography (PET)) could help in situations that would otherwise lead to a stroke. Since both primary and secondary prevention measures are often required, we see that the techniques can be helpful in both situations. The diseases that cause stroke that can be investigated are, among others, carotid stenosis; transient ischemic attacks (TIAs) may also be followed by a major stroke if nothing is undertaken. It has been established that carotid stenosis is to be treated in the presence of a significant lesion that has neurological symptoms. The question of how to deal with these patients often arises when the relationship between the stenosis and symptoms is not significant or the symptomatology unclear. In such situations, either PET and/or fat-saturated T1 images of the carotids can help to demonstrate the embolic nature of the plaque. We have seen that carotid plaque vulnerability, which can cause embolism, can be associated with plaque inflammation (seen on PET) or plaque haemorrhage (seen on MR images). Also, while PET and MRI will demonstrate different stages of plaque vulnerability, they can both help to demonstrate vascular lesions that are at risk of causing significant ischemic events. Diffusion-weighted imaging (DWI) has shown that some TIAs may indeed be ischemic brain lesions with a transient symptomatology. The early use of DWI can thus help treat these patients more acutely. Based on this, we have seen that newer imaging techniques can provide additional knowledge about conditions that may lead to stroke and be treated. This should have a major impact on patient outcomes and ultimately on healthcare costs related to this condition.
Collapse
Affiliation(s)
- Karl-Olof Lövblad
- Division of Diagnostic and Interventional Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Laurie Bouchez
- Division of Radiology, Geneva University Hospitals, Geneva, Switzerland
| | - Stephen Altrichter
- Division of Diagnostic and Interventional Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Osman Ratib
- Division of Nuclear Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Paolo Machi
- Division of Diagnostic and Interventional Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Maria Isabel Vargas
- Division of Diagnostic and Interventional Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Roman Sztajzel
- Division of Neurology, Geneva University Hospitals, Geneva, Switzerland
| |
Collapse
|
7
|
Wang Y, Liang H, Luo Y, Zhou Y, Jin L, Wang S, Bi Y. History of Hypertension Is Associated With MR Hypoperfusion in Chinese Inpatients With DWI-Negative TIA. Front Neurol 2019; 10:867. [PMID: 31474927 PMCID: PMC6702658 DOI: 10.3389/fneur.2019.00867] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/26/2019] [Indexed: 12/28/2022] Open
Abstract
Objectives: The present study aimed to examine the prevalence of and risk factors for magnetic resonance (MR) perfusion abnormality in a Chinese population with transient ischemic attack (TIA) and normal diffusion-weighted imaging (DWI) findings. Methods: Patients with TIA admitted to our stroke center between January 2015 and October 2017 were recruited to the present study. MRI, including both DWI and perfusion-weighted imaging (PWI), was performed within 7 days of symptom onset. Time to maximum of the residue function (Tmax) maps were evaluated using the RAPID software (Ischemaview USA, Version 4.9) to determine hypoperfusion. Multivariate analysis was used to assess perfusion findings, clinical variables, medical history, cardio-metabolic, and the ABCD2 scores (age, blood pressure, clinical features, symptom duration, and diabetes). Results: Fifty-nine patients met the inclusion criteria. The prevalence of MR perfusion Tmax ≥ 4 s ≥ 0 ml and ≥ 10 mL were 72.9% (43/59) and 42.4% (25/59), respectively. Multivariate analyses revealed that history of hypertension is an independent factor associated with MR perfusion abnormality (Tmax ≥ 4 s ≥ 10 mL) for Chinese patients with TIA (P = 0.033, adjusted OR = 4.11, 95% CI = 1.12–15.11). Proximal artery stenosis (>50%) tended to lead to a larger PW lesion on MRI (p = 0.067, adjusted OR = 3.60, 95% CI = 0.91–14.20). Conclusion: Our results suggest that the prevalence of perfusion abnormality is high as assessed by RAPID using the parametric Tmax ≥ 4 s. History of hypertension is a strong predictor of focal perfusion abnormality as calculated by RAPID on Tmax map of TIA patients with negative DWI findings.
Collapse
Affiliation(s)
- Yue Wang
- Department of Neurology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Huazheng Liang
- Department of Neurology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Yu Luo
- Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Radiology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Yuan Zhou
- Department of Neurology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Lingjing Jin
- Department of Neurology, Tongji Hospital, Tongji University, Shanghai, China
| | - Shaoshi Wang
- Department of Neurology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| | - Yong Bi
- Department of Neurology, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China.,Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
8
|
Yuan J, Jia Z, Song Y, Yang S, Li Y, Yang L, Qin W, Hu W. Incidence and Predictors of Acute Ischemic Lesions on Brain Magnetic Resonance Imaging in Patients With a Clinical Diagnosis of Transient Ischemic Attack in China. Front Neurol 2019; 10:764. [PMID: 31379718 PMCID: PMC6646584 DOI: 10.3389/fneur.2019.00764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/01/2019] [Indexed: 12/18/2022] Open
Abstract
Background: The associations between the clinical characteristics and diffusion-weighted imaging (DWI) positivity in patients with a clinical diagnosis of transient ischemic attack (TIA) are still poorly understood. The purpose of our study was to determine the incidence of TIA related acute infarction by DWI, and to determine the underlying predictors of DWI positivity in TIA patients. Methods: Between Jan 2017 and Dec 2018, we retrospectively enrolled 430 patients with a clinical diagnosis of TIA who underwent DWI. Patients were divided into those with acute ischemic lesions (DWI positive group) and those without (DWI negative group). The clinical characteristics, laboratory data, and imaging parameters were compared between the two groups. Results: A total of 430 time-based TIA patients (mean age, 61.4 ± 13.0) were enrolled in this study. About 126 (29.3%) of TIA patients had a DWI positive lesion in our series. Comparing TIA patients with positive DWI to those with negative DWI, acute lesions were more likely to be more male, have higher hyperlipidemia and a smoking history, more speech abnormalities and increased motor weakness; and higher systolic and diastolic blood pressure, homocysteine, fasting blood glucose, and the scores of ABCD2, ABCD3, ABCD3-I, and Dawson. Several independent predictors of DWI positivity were identified with logistic regression analysis: motor weakness (odds ratio 4.861, P = 0.021), speech abnormalities (odds ratio 4.029, P = 0.024), and ABCD3-I (odds ratio 13.141, P = 0.001). ABCD3-I showed the greatest area under the ROC curve, with a sensitivity of 85.7% and specificity of 72.4%. Conclusion: In patients with a clinical diagnosis of TIA, 29.3% demonstrated acute DWI lesions on brain magnetic resonance imaging (MRI). They were associated with motor weakness, speech abnormalities and higher ABCD3-I score at admission.
Collapse
Affiliation(s)
- Junliang Yuan
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Zejin Jia
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yangguang Song
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Shuna Yang
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yue Li
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Lei Yang
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Wei Qin
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Wenli Hu
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
9
|
Havsteen I, Willer L, Ovesen C, Nybing JD, Ægidius K, Marstrand J, Meden P, Rosenbaum S, Folke MN, Christensen H, Christensen A. Significance of arterial spin labeling perfusion and susceptibility weighted imaging changes in patients with transient ischemic attack: a prospective cohort study. BMC Med Imaging 2018; 18:24. [PMID: 30126352 PMCID: PMC6102826 DOI: 10.1186/s12880-018-0264-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 07/30/2018] [Indexed: 11/10/2022] Open
Abstract
Background In a prospective cohort of patients with transient ischemic attack (TIA), we investigated usefulness and feasibility of arterial spin labeling (ASL) perfusion and susceptibility weighted imaging (SWI) alone and in combination with standard diffusion weighted (DWI) imaging in subacute diagnostic work-up. We investigated rates of ASL and SWI changes and their potential correlation to lasting infarction 8 weeks after ictus. Methods Patients with TIA underwent 3T-MRI including DWI, ASL and SWI within 72 h of symptom onset. We defined lasting infarction as presence of 8-week MRI T2-fluid attenuated inversion recovery (FLAIR) hyperintensity or atrophy in the area of initial DWI-lesion. Results We included 116 patients. Diffusion and perfusion together identified more patients with ischemia than either alone (59% vs. 40%, p < 0.0001). The presence of both diffusion and perfusion lesions had the highest rate of 8-week gliosis scars, 65% (p < 0.0001). In white matter, DWI-restriction was the determinant factor for scar development. However, in cortical gray matter half of lesions with perfusion deficit left a scar, while lesions without perfusion change rarely resulted in scars (56% versus 21%, p = 0.03). SWI lesions were rare (6%) and a subset of perfusion lesions. SWI-lesions with DWI-lesions were all located in cortical gray matter and showed high scar rate. Conclusions ASL perfusion increased ischemia detection in patients with TIA, and was most useful in conjunction with DWI. ASL was fast, robust and useful in a subacute clinical diagnostic setting. SWI had few positive findings and did not add information. Trial Registration. http://www.clinicaltrials.gov. Unique Identifier NCT01531946, prospectively registered February 9, 2012. Electronic supplementary material The online version of this article (10.1186/s12880-018-0264-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Inger Havsteen
- Department of Radiology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark.
| | - Lasse Willer
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Christian Ovesen
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Janus Damm Nybing
- Department of Radiology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Karen Ægidius
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Jacob Marstrand
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Per Meden
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Sverre Rosenbaum
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Marie Norsker Folke
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Hanne Christensen
- Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - Anders Christensen
- Department of Radiology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| |
Collapse
|
10
|
Nah HW. Small Vessel Transient Ischemic Attack and Lacunar Infarction Detected with Perfusion-Weighted MRI. J Stroke 2017; 19:365-366. [PMID: 29037007 PMCID: PMC5647636 DOI: 10.5853/jos.2016.00598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/14/2016] [Accepted: 08/15/2016] [Indexed: 11/21/2022] Open
Affiliation(s)
- Hyun-Wook Nah
- Cerebrovascular Center and Department of Neurology, Dong-A University College of Medicine, Busan, Korea
| |
Collapse
|
11
|
Lodha N, Harrell J, Eisenschenk S, Christou EA. Motor Impairments in Transient Ischemic Attack Increase the Odds of a Subsequent Stroke: A Meta-Analysis. Front Neurol 2017. [PMID: 28638365 PMCID: PMC5461338 DOI: 10.3389/fneur.2017.00243] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background and purpose Transient ischemic attack (TIA) increases the risk for a subsequent stroke. Typical symptoms include motor weakness, gait disturbance, and loss of coordination. The association between the presence of motor impairments during a TIA and the chances of a subsequent stroke has not been examined. In the current meta-analysis, we examine whether the odds of a stroke are greater in TIA individuals who experience motor impairments as compared with those who do not experience motor impairments. Methods We conducted a systematic search of electronic databases as well as manual searches of the reference lists of retrieved articles. The meta-analysis included studies that reported an odds ratio relating motor impairments to a subsequent stroke, or the number of individuals with or without motor impairments who experienced a subsequent stroke. We examined these studies using rigorous meta-analysis techniques including random effects model, forest and funnel plots, I2, publication bias, and fail-safe analysis. Results Twenty-four studies with 15,129 participants from North America, Australia, Asia, and Europe qualified for inclusion. An odds ratio of 2.11 (95% CI, 1.67–2.65, p = 0.000) suggested that the chances of a subsequent stroke are increased by twofolds in individuals who experience motor impairments during a TIA compared with those individuals who have no motor impairments. Conclusion The presence of motor impairments during TIA is a significantly high-risk clinical characteristic for a subsequent stroke. The current evidence for motor impairments following TIA relies exclusively on the clinical reports of unilateral motor weakness. A comprehensive examination of motor impairments in TIA will enhance TIA prognosis and restoration of residual motor impairments.
Collapse
Affiliation(s)
- Neha Lodha
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, United States
| | - Jane Harrell
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| | - Stephan Eisenschenk
- Department of Neurology, University of Florida, Gainesville, FL, United States
| | - Evangelos A Christou
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, United States
| |
Collapse
|
12
|
Long B, Koyfman A. Best Clinical Practice: Controversies in Transient Ischemic Attack Evaluation and Disposition in the Emergency Department. J Emerg Med 2017; 52:299-310. [DOI: 10.1016/j.jemermed.2016.10.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 02/07/2023]
|
13
|
Lee SH, Nah HW, Kim BJ, Ahn SH, Kim JS, Kang DW, Kwon SU. Role of Perfusion-Weighted Imaging in a Diffusion-Weighted-Imaging-Negative Transient Ischemic Attack. J Clin Neurol 2017; 13:129-137. [PMID: 28176500 PMCID: PMC5392454 DOI: 10.3988/jcn.2017.13.2.129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/08/2016] [Accepted: 10/10/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND AND PURPOSE The absence of acute ischemic lesions in diffusion-weighted imaging (DWI) in transient ischemic attack (TIA) patients makes it difficult to diagnose the true vascular etiologies. Among patients with DWI-negative TIA, we investigated whether the presence of a perfusion-weighted imaging (PWI) abnormality implied a true vascular event by identifying new acute ischemic lesions in follow-up magnetic resonance imaging (MRI) in areas corresponding to the initial PWI abnormality. METHODS The included patients underwent DWI and PWI within 72 hours of TIA and also follow-up DWI at 3 days after the initial MRI. These patients had visited the emergency room between July 2009 and May 2015. Patients who demonstrated initial DWI lesions were excluded. The initial PWI abnormalities in the corresponding vascular territory were visually classified into three patterns: no abnormality, focal abnormality, and territorial abnormality. RESULTS No DWI lesions were evident in initial MRI in 345 of the 443 TIA patients. Follow-up DWI was applied to 87 of these 345 DWI-negative TIA patients. Initial PWI abnormalities were significantly associated with follow-up DWI abnormalities: 8 of 43 patients with no PWI abnormalities (18.6%) had new ischemic lesions, whereas 13 of 16 patients with focal perfusion abnormalities (81.2%) had new ischemic lesions in the areas of initial PWI abnormalities [odds ratio (OR)=15.1, 95% confidence interval (CI)=3.6-62.9], and 14 of 28 patients with territorial perfusion abnormalities (50%) had new lesions (OR=3.7, 95% CI=1.2-11.5). CONCLUSIONS PWI is useful in defining whether or not the transient neurological symptoms in DWI-negative TIA are true vascular events, and will help to improve the understanding of the pathomechanism of TIA.
Collapse
Affiliation(s)
- Sang Hun Lee
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyun Wook Nah
- Department of Neurology, Dong-A University Hospital, Dong-A University College of Medicine, Busan, Korea
| | - Bum Joon Kim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Ho Ahn
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong S Kim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong Wha Kang
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sun U Kwon
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| |
Collapse
|
14
|
Kelly PJ, Albers GW, Chatzikonstantinou A, De Marchis GM, Ferrari J, George P, Katan M, Knoflach M, Kim JS, Li L, Lee EJ, Olivot JM, Purroy F, Raposo N, Rothwell PM, Sharma VK, Song B, Tsivgoulis G, Walsh C, Xu Y, Merwick A. Validation and comparison of imaging-based scores for prediction of early stroke risk after transient ischaemic attack: a pooled analysis of individual-patient data from cohort studies. Lancet Neurol 2016; 15:1238-1247. [PMID: 27751555 DOI: 10.1016/s1474-4422(16)30236-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/25/2016] [Accepted: 08/25/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Identification of patients at highest risk of early stroke after transient ischaemic attack has been improved with imaging based scores. We aimed to compare the validity and prognostic utility of imaging-based stroke risk scores in patients after transient ischaemic attack. METHODS We did a pooled analysis of published and unpublished individual-patient data from 16 cohort studies of transient ischaemic attack done in Asia, Europe, and the USA, with early brain and vascular imaging and follow up. All patients were assessed by stroke specialists in hospital settings as inpatients, in emergency departments, or in transient ischaemic attack clinics. Inclusion criteria were stroke-specialist confirmed transient ischaemic attack, age of 18 years or older, and MRI done within 7 days of index transient ischaemic attack and before stroke recurrence. Multivariable logistic regression was done to analyse the predictive utility of abnormal diffusion-weighted MRI, carotid stenosis, and transient ischaemic attack within 1 week of index transient ischaemic attack (dual transient ischaemic attack) after adjusting for ABCD2 score. We compared the prognostic utility of the ABCD2, ABCD2-I, and ABCD3-I scores using discrimination, calibration, and risk reclassification. FINDINGS In 2176 patients from 16 cohort studies done between 2005 and 2015, after adjusting for ABCD2 score, positive diffusion-weighted imaging (odds ratio [OR] 3·8, 95% CI 2·1-7·0), dual transient ischaemic attack (OR 3·3, 95% CI 1·8-5·8), and ipsilateral carotid stenosis (OR 4·7, 95% CI 2·6-8·6) were associated with 7 day stroke after index transient ischaemic attack (p<0·001 for all). 7 day stroke risk increased with increasing ABCD2-I and ABCD3-I scores (both p<0·001). Discrimination to identify early stroke risk was improved for ABCD2-I versus ABCD2 (2 day c statistic 0·74 vs 0·64; p=0·006). However, discrimination was further improved by ABCD3-I compared with ABCD2 (2 day c statistic 0·84 vs 0·64; p<0·001) and ABCD2-I (c statistic 0·84 vs 0·74; p<0·001). Early stroke risk reclassification was improved by ABCD3-I compared with ABCD2-I score (clinical net reclassification improvement 33% at 2 days). INTERPRETATION Although ABCD2-I and ABCD3-I showed validity, the ABCD3-I score reliably identified highest-risk patients at highest risk of a stroke after transient ischaemic attack with improved risk prediction compared with ABCD2-I. Transient ischaemic attack management guided by ABCD3-I with immediate stroke-specialist assessment, urgent MRI, and vascular imaging should now be considered, with monitoring of safety and cost-effectiveness. FUNDING Health Research Board of Ireland, Irish Heart Foundation, Irish Health Service Executive, Irish National Lottery, National Medical Research Council of Singapore, Swiss National Science Foundation, Bangerter-Rhyner Foundation, Swiss National Science Foundation, Swisslife Jubiläumsstiftung for Medical Research, Swiss Neurological Society, Fondazione Dr Ettore Balli (Switzerland), Clinical Trial Unit of University of Bern, South Korea's Ministry for Health, Welfare, and Family Affairs, UK Wellcome Trust, Wolfson Foundation, UK Stroke Association, British Heart Foundation, Dunhill Medical Trust, National Institute of Health Research (NIHR), Medical Research Council, and the NIHR Oxford Biomedical Research Centre.
Collapse
Affiliation(s)
- Peter J Kelly
- Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin, Dublin Academic Medical Centre, Dublin, Ireland.
| | - Gregory W Albers
- Department of Neurology and Neurological Sciences, Stanford Stroke Centre, Palo Alto, CA, USA
| | | | - Gian Marco De Marchis
- Department of Neurology and Stroke Center, University Hospital of Basel, Basel, Switzerland
| | - Julia Ferrari
- Department of Neurology, Hospital Barmherzige Brueder, Vienna, Austria
| | - Paul George
- Department of Neurology and Neurological Sciences, Stanford Stroke Centre, Palo Alto, CA, USA
| | - Mira Katan
- Department of Neurology, University Hospital of Zurich, Switzerland
| | - Michael Knoflach
- Department of Neurology, Medical University of Innsbruck, Austria
| | - Jong S Kim
- Department of Neurology, University of Ulsan, Asan Medical Center, Seoul, South Korea
| | - Linxin Li
- Stroke Prevention Research Unit, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford University, Oxford, UK
| | - Eun-Jae Lee
- Department of Neurology, University of Ulsan, Asan Medical Center, Seoul, South Korea
| | - Jean-Marc Olivot
- Stroke Unit, Department of Neurology Purpan University Hospital, Toulouse, France
| | - Francisco Purroy
- Stroke Unit, Department of Neurology, Hospitalt Universitari Arnau de Vilanova de Lleida, Lleida, Spain; Universitat de Lleida, Biomedical Research Institute of Lleida, Universitat de Lleida, Lleida, Spain
| | - Nicolas Raposo
- Stroke Unit, Department of Neurology Purpan University Hospital, Toulouse, France
| | - Peter M Rothwell
- Stroke Prevention Research Unit, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford University, Oxford, UK
| | - Vijay K Sharma
- Division of Neurology, Department of Medicine, National University Hospital, Singapore; YLL School of Medicine, National University of Singapore, Singapore
| | - Bo Song
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Georgios Tsivgoulis
- Second Department of Neurology, University of Athens, School of Medicine, Athens, Greece; Department of Neurology, University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - Cathal Walsh
- Department of Statistics, University of Limerick, Ireland
| | - Yuming Xu
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Aine Merwick
- Neurovascular Clinical Science Unit, Stroke Service and Department of Neurology, Mater University Hospital/University College Dublin, Dublin Academic Medical Centre, Dublin, Ireland; Chelsea and Westminster NHS Foundation Trust, London, UK
| |
Collapse
|
15
|
Clinical Policy: Critical Issues in the Evaluation of Adult Patients With Suspected Transient Ischemic Attack in the Emergency Department. Ann Emerg Med 2016; 68:354-370.e29. [DOI: 10.1016/j.annemergmed.2016.06.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
16
|
Transient ischemic attack: management in the emergency department and impact of an outpatient neurovascular clinic. CAN J EMERG MED 2016; 18:331-9. [PMID: 26879765 DOI: 10.1017/cem.2016.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES 1) To evaluate whether transient ischemic attack (TIA) management in emergency departments (EDs) of the Nova Scotia Capital District Health Authority followed Canadian Best Practice Recommendations, and 2) to assess the impact of being followed up in a dedicated outpatient neurovascular clinic. METHODS Retrospective chart review of all patients discharged from EDs in our district from January 1, 2011 to December 31, 2012 with a diagnosis of TIA. Cox proportional hazards models, Kaplan-Meier survival curve, and propensity matched analyses were used to evaluate 90-day mortality and readmission. RESULTS Of the 686 patients seen in the ED for TIA, 88.3% received computed tomography (CT) scanning, 86.3% received an electrocardiogram (ECG), 35% received vascular imaging within 24 hours of triage, 36% were seen in a neurovascular clinic, and 4.2% experienced stroke, myocardial infarction, or vascular death within 90 days. Rates of antithrombotic use were increased in patients seen in a neurovascular clinic compared to those who were not (94% v. 86.3%, p<0.0001). After adjustment for age, sex, vascular disease risk factors, and stroke symptoms, the risk of readmission for stroke, myocardial infarction, or vascular death was lower for those seen in a neurovascular clinic compared to those who were not (adjusted hazard ratio 0.28; 95% confidence interval 0.08-0.99, p=0.048). CONCLUSION The majority of patients in our study were treated with antithrombotic agents in the ED and investigated with CT and ECG within 24 hours; however, vascular imaging and neurovascular clinic follow-up were underutilized. For those with neurovascular clinic follow-up, there was an association with reduced risk of subsequent stroke, myocardial infarction, or vascular death.
Collapse
|
17
|
Lee EJ, Kang DW, Warach S. Silent New Brain Lesions: Innocent Bystander or Guilty Party? J Stroke 2015; 18:38-49. [PMID: 26467195 PMCID: PMC4747067 DOI: 10.5853/jos.2015.01410] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 09/12/2015] [Accepted: 09/14/2015] [Indexed: 11/17/2022] Open
Abstract
With the advances in magnetic resonance imaging, previously unrecognized small brain lesions, which are mostly asymptomatic, have been increasingly detected. Diffusion-weighted imaging can identify small ischemic strokes, while gradient echo T2* imaging and susceptibility-weighted imaging can reveal tiny hemorrhagic strokes (microbleeds). In this article, we review silent brain lesions appearing soon after acute stroke events, including silent new ischemic lesions and microbleeds appearing 1) after acute ischemic stroke and 2) after acute intracerebral hemorrhage. Moreover, we briefly discuss the clinical implications of these silent new brain lesions.
Collapse
Affiliation(s)
- Eun-Jae Lee
- Department of Neurology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea
| | - Dong-Wha Kang
- Department of Neurology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea
| | - Steven Warach
- Department of Neurology, Dell Medical School, University of Texas at Austin, Austin, TX, USA
| |
Collapse
|