1
|
Kim BK, Kim B, You SH. Differentiation of Acute Internal Carotid Artery Occlusion Etiology on Computed Tomography Angiography: Diagnostic Tree for Preparing Endovascular Treatment. Diagnostics (Basel) 2024; 14:1524. [PMID: 39061661 PMCID: PMC11276486 DOI: 10.3390/diagnostics14141524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/08/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND AND PURPOSE This study aimed to identify the imaging characteristics and discriminate the etiology of acute internal carotid artery occlusion (ICAO) on computed tomography angiography (CTA) in patients with acute ischemic stroke. MATERIALS AND METHODS We retrospectively evaluated consecutive patients who underwent endovascular thrombectomy for acute ICAO. Contrast filling of the extracranial ICA in preprocedural CTA was considered apparent ICAO. Non-contrast filling of the extracranial ICA was evaluated according to the contrast-filled lumen configuration, lumen margin and location, Hounsfield units of the non-attenuating segment, and presence of calcification or an intimal flap. Digital subtraction angiography findings were the reference standard for ICAO etiology and the occlusion site. A diagnostic tree was derived using significant variables according to pseudo-occlusion, atherosclerotic vascular disease (ASVD), thrombotic occlusion, and dissection. RESULTS A total of 114 patients showed apparent ICAO (n = 21), pseudo-occlusion (n = 51), ASVD (n = 27), thrombotic occlusion (n = 9), or dissection (n = 6). Most pseudo-occlusions (50/51, 98.0%) showed dependent locations with ill-defined contrast column margins and classic flame or beak shapes. The most common occlusion site of pseudo-occlusion was the petro-cavernous ICA (n = 32, 62.7%). Apparent ICAO mainly appeared in cases with occlusion distal to the posterior communicating artery orifice. ASVD showed beak or blunt shapes in the presence of low-density plaques or dense calcifications. Dissection revealed flame- or beak-shaped appearances with circumscribed margins. Thrombotic occlusions tended to appear blunt-shaped. The decision-tree model showed a 92.5% overall accuracy. CONCLUSIONS CTA characteristics may help diagnose ICAO etiology. We provide a simple and easy decision-making model to inform endovascular thrombectomy.
Collapse
Affiliation(s)
| | - Byungjun Kim
- Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Republic of Korea; (B.K.K.); (S.-H.Y.)
| | | |
Collapse
|
2
|
Liang W, Wang Y, Du Z, Mang J, Wang J. Intraprocedural Angiographic Signs Observed During Endovascular Thrombectomy in Patients With Acute Ischemic Stroke: A Systematic Review. Neurology 2021; 96:1080-1090. [PMID: 33893205 DOI: 10.1212/wnl.0000000000012069] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/25/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE In the real-world practice of endovascular thrombectomy (EVT) for acute ischemic stroke (AIS), the analysis of intraprocedural angiographic signs (IPASs) still challenges neurointerventionists. This review provides insights into the significance of these subtle changes for predicting underlying etiology, technical feasibility, and patient prognosis, thus promoting the potential real-time application of these signs. METHODS A systematic literature search was conducted using PubMed, Ovid Medline/Embase, and Cochrane. The search focused on studies published between January 1995 and August 2020 that reported findings related to intraprocedural angiographic manifestations in endovascular recanalization therapy for AIS. RESULTS We identified 12 IPASs in 22 studies involving 1,683 patients. The IPASs were assigned into 3 subsets according to their clinical meanings. CONCLUSION The systematic analysis of IPAS in clinical trials and practice will lead to a better understanding of treatment effects, responses, and mechanisms during EVT. Studies of larger cohorts using more robust statistical methods are needed.
Collapse
Affiliation(s)
- Wenzhao Liang
- From the Department of Neurology, China-Japan Union Hospital of Jilin University (W.L., J.M.), Changchun, Jilin, China; The Third Clinical College of Norman Bethune (Y.W.), Jilin University, Changchun, Jilin, China; and Department of Neurology, Chinese PLA General Hospital (Z.D., J.W.), Changchun, Jilin, China
| | - Yimeng Wang
- From the Department of Neurology, China-Japan Union Hospital of Jilin University (W.L., J.M.), Changchun, Jilin, China; The Third Clinical College of Norman Bethune (Y.W.), Jilin University, Changchun, Jilin, China; and Department of Neurology, Chinese PLA General Hospital (Z.D., J.W.), Changchun, Jilin, China
| | - Zhihua Du
- From the Department of Neurology, China-Japan Union Hospital of Jilin University (W.L., J.M.), Changchun, Jilin, China; The Third Clinical College of Norman Bethune (Y.W.), Jilin University, Changchun, Jilin, China; and Department of Neurology, Chinese PLA General Hospital (Z.D., J.W.), Changchun, Jilin, China
| | - Jing Mang
- From the Department of Neurology, China-Japan Union Hospital of Jilin University (W.L., J.M.), Changchun, Jilin, China; The Third Clinical College of Norman Bethune (Y.W.), Jilin University, Changchun, Jilin, China; and Department of Neurology, Chinese PLA General Hospital (Z.D., J.W.), Changchun, Jilin, China.
| | - Jun Wang
- From the Department of Neurology, China-Japan Union Hospital of Jilin University (W.L., J.M.), Changchun, Jilin, China; The Third Clinical College of Norman Bethune (Y.W.), Jilin University, Changchun, Jilin, China; and Department of Neurology, Chinese PLA General Hospital (Z.D., J.W.), Changchun, Jilin, China
| |
Collapse
|
3
|
Ota T, Shigeta K, Amano T, Kaneko J. Endovascular treatment for acute carotid T and carotid non-T occlusion: A retrospective multicentre study of 81 patients. Interv Neuroradiol 2019; 25:497-501. [PMID: 31072250 DOI: 10.1177/1591019919846568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The functional prognosis of patients with carotid T occlusion is poor, but few comprehensive studies have investigated carotid non-T occlusion, in which the terminal internal carotid artery portion is unobstructed. We aimed to elucidate the clinical features of carotid non-T occlusion by comparing patients with acute carotid T occlusion and carotid non-T occlusion. METHODS Among 362 patients who underwent thrombectomy between January 2015 and June 2018, 20 and 61 were diagnosed with carotid non-T occlusion and carotid T occlusion, respectively. We compared preoperative clinical findings, treatment strategies, treatment complications and functional outcomes between the two groups. RESULTS Age, sex, preoperative National Institutes of Health stroke scale, cerebral infarction subtypes and medical history did not significantly differ. In contrast, preoperative diffusion-weighted imaging-Alberta Stroke Program early computed tomography scores were 9 (1-11) and 6.5 (0-11) for the carotid non-T occlusion and carotid T occlusion groups, respectively (P = 0.015). The duration of treatment or the median number of passes (2.5 vs. 2.0), the numbers of patients with thrombolysis in cerebral infarction 2b/3, bleeding complications and modified Rankin scale scores of 0-2 on postoperative day 90 did not significantly differ between the two groups. Manual aspiration before, internal carotid artery arrest while crossing a lesion and injection into the contralateral side were significantly more frequent in patients with carotid non-T occlusion. Intracranial internal carotid artery stenosis was significantly more frequent in patients with carotid non-T occlusion (n = 4, 20%) than carotid T occlusion (n = 0), and 10% of patients with carotid non-T occlusion had arterial dissection. CONCLUSION Patients with carotid non-T occlusion more frequently had a background of intracranial internal carotid artery stenosis or arterial dissection than patients with carotid T occlusion. Specific treatment strategies should be developed to improve the clinical outcomes of patients with carotid non-T occlusion.
Collapse
Affiliation(s)
- Takahiro Ota
- Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Keigo Shigeta
- Department of Neurosurgery, National Hospital Organization Disaster Medical Center, Tokyo, Japan
| | - Tatsuo Amano
- Department of Stroke and Cerebrovascular Medicine, Kyorin University, Tokyo, Japan
| | - Junya Kaneko
- Department of Emergency Medicine, Nippon Medical School Tama Nagayama Hospital, Tokyo, Japan
| |
Collapse
|
4
|
Malhotra K, Goyal N, Tsivgoulis G. Internal Carotid Artery Occlusion: Pathophysiology, Diagnosis, and Management. Curr Atheroscler Rep 2017; 19:41. [PMID: 28861849 DOI: 10.1007/s11883-017-0677-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE OF REVIEW Acute internal carotid artery occlusion (ICAO) is associated with large infarcts and poor clinical outcomes and contributes to morbidity and mortality worldwide. In this review, we discuss various etiologies and pathophysiology of clinical presentations of ICAO, different radiographic patterns, and management of patients with ICAO. RECENT FINDINGS Recanalization rates remain suboptimal with systemic thrombolysis amongst patients with acute ICAO. Recent success of endovascular therapy for vessel occlusion in anterior circulation has expanded the horizons; however, few patients with cervical dissections and ICAO were included in these landmark trials. Acute ICAO responds poorly to intravenous thrombolysis and portends worse clinical outcomes. Extracranial and intracranial ICAOs have varied clinical course and imaging patterns, with discrete cervical ICAO usually associated with better clinical outcomes while tandem occlusions predispose poor outcomes. Diagnostic catheter-based angiogram is often required since appearances of ICAO using non-invasive neuroimaging modalities are often deceiving. Repeated vascular imaging in acute to subacute phase to determine recanalization of ICAO is critical for secondary prevention. Recent success of endovascular procedures will continue to expand the horizons to improve the management of ICAO.
Collapse
Affiliation(s)
- Konark Malhotra
- Department of Neurology, West Virginia University - Charleston Division, Charleston Area Medical Center, Charleston, WV, 25301, USA.
| | - Nitin Goyal
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Georgios Tsivgoulis
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.,Second Department of Neurology, "Attikon" University Hospital, National & Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
5
|
Mid-cervical flame-shaped pseudo-occlusion: diagnostic performance of mid-cervical flame-shaped extracranial internal carotid artery sign on computed tomographic angiography in hyperacute ischemic stroke. Neuroradiology 2017; 59:989-996. [PMID: 28785800 DOI: 10.1007/s00234-017-1882-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE Flame-shaped pseudo-occlusion of the extracranial internal carotid artery (ICA) is a flow-related phenomenon that creates computed tomographic angiography (CTA) and digital subtraction angiography (DSA) findings that mimic tandem intracranial-extracranial ICA occlusion or dissection. We aim to determine the diagnostic performance of mid-cervical flame-shaped extracranial ICA sign on CTA in hyperacute ischemic stroke patients. METHODS We retrospectively included consecutive anterior circulation ischemic stroke patients presenting within 6 h of symptom onset who underwent 4D brain CTA and arterial-phase neck CTA using a 320-detector CT scanner during August 2012 to July 2015. Two blinded readers independently reviewed arterial-phase neck CTA and characterized the extracranial ICA configurations into mid-cervical flame-shaped, proximal blunt/beak-shaped, and tubular-shaped groups. 4D whole brain CTA was used as a reference standard for intracranial ICA occlusion detection. Diagnostic performance of the mid-cervical flame-shaped extracranial ICA sign and interobserver reliability were calculated. RESULTS Of the 81 cases, 11 had isolated intracranial ICA occlusion, and 6 had true extracranial ICA occlusion. Mid-cervical flame-shaped extracranial ICA sign was found in 45.5% (5/11) of isolated intracranial ICA occlusions but none in the true extracranial ICA occlusion group. The sensitivity, specificity, PPV, NPV, and accuracy of the mid-cervical flame-shaped extracranial ICA sign for the detection of isolated intracranial ICA occlusion were 45.5, 100, 100, 92.1, and 92.6%, respectively. Interobserver reliability was 0.90. CONCLUSION The mid-cervical flame-shaped extracranial ICA sign may suggest the presence of isolated intracranial ICA occlusion and allow reliable exclusion of tandem extracranial-intracranial ICA occlusion in hyperacute ischemic stroke setting.
Collapse
|
6
|
Park S, Park ES, Kwak JH, Lee DG, Suh DC, Kwon SU, Lee DH. Endovascular Management of Long-Segmental Petrocavernous Internal Carotid Artery (Carotid S) Occlusion. J Stroke 2015; 17:336-43. [PMID: 26437999 PMCID: PMC4635712 DOI: 10.5853/jos.2015.17.3.336] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/05/2015] [Accepted: 07/06/2015] [Indexed: 11/25/2022] Open
Abstract
Background and Purpose Long-segmental thrombotic occlusion of the distal internal carotid artery (ICA) sparing the cervical segment proximally and the supraclinoid segment distally, which could be termed ’Carotid S occlusion’, has an unusual clinical presentation. However, endovascular management of this lesion is challenging. The purpose of our study is to report our endovascular treatment clinical experience of the disease. Methods From March 2008 to June 2013, we could identify 14 patients (average age: 62.1, median age: 62, range: 50-79) with ‘Carotid S occlusion’, who underwent endovascular recanalization procedures. Patient’s clinical presentations were collected and the imaging findings also analyzed. The technical success rate, 24-hour and follow-up imaging outcome, and the clinical outcome using the 90-day mRS (modified Rankin scale) score were evaluated. Results Patients presented with gradually progressing (n = 8), fluctuating (n = 3), transient ischemic attack (n = 2) and stationary (n = 1) symptoms. DWI showed internal and external border-zone lesions in six patients, only internal ICA border-zone lesions in three patients, and only external border-zone lesions in two patients. Underlying distal ICA stenosis was noted in 12 patients. The technical success rate was 92.8% (13/14). Luminal patency was noted in all patients (100%) after 24 hours and in nine of 10 (90%) on long-term follow-up (median: 6.5, average: 15.1, range: 1-39 months). A 90-day, good functional outcome (mRS ≤ 2) was noted in 13 of 14 patients (92.8%). Conclusions ‘Carotid S occlusion’ usually presented with border-zone infarction and endovascular management of the lesions was feasible. A relatively successful clinical outcome could be achieved after successful revascularization.
Collapse
Affiliation(s)
- Soonchan Park
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea ; Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Eun Suk Park
- Department of Neurosurgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Jae Hyuk Kwak
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Dong-Geun Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Dae Chul Suh
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Sun U Kwon
- Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Deok Hee Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| |
Collapse
|
7
|
Preprocedure change in arterial occlusion in acute ischemic stroke patients undergoing endovascular treatment by computed tomographic angiography. Am J Emerg Med 2015; 33:631-4. [DOI: 10.1016/j.ajem.2015.01.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 11/16/2022] Open
|