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Johnson MD, Palmisciano P, Yamani AS, Hoz SS, Prestigiacomo CJ. A Systematic Review and Meta-Analysis of 3-Dimensional Morphometric Parameters for Cerebral Aneurysms. World Neurosurg 2024; 183:214-226.e5. [PMID: 38160907 DOI: 10.1016/j.wneu.2023.12.131] [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: 10/21/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Imaging modalities with increased spatial resolution have allowed for more precise quantification of cerebral aneurysm shape in 3-dimensional (3D) space. We conducted a systematic review and meta-analysis to assess the correlation of individual 3D morphometric measures with cerebral aneurysm rupture status. METHODS Two independent reviewers performed a PRISMA (preferred reporting items of systematic reviews and meta-analysis)-guided literature search to identify articles reporting the association between 3D morphometric measures of intracranial aneurysms and rupture status. RESULTS A total of 15,122 articles were identified. After screening, 39 studies were included. We identified 17 3D morphometric measures, with 11 eligible for the meta-analysis. The meta-analysis showed a significant association with rupture status for the following measures: nonsphericity index (standardized mean difference [SMD], 0.66; 95% confidence interval [CI], 0.53-0.79; P < 0.0001; I2 = 55.2%), undulation index (SMD, 0.55; 95% CI, 0.26-0.85; P = 0.0017; I2 = 68.1%), ellipticity index (SMD, 0.53; 95% CI, 0.29-0.77; P = 0.0005; I2 = 70.8%), volume (SMD, 0.18; 95% CI, 0.02-0.35; P = 0.0320; I2 = 82.3%), volume/ostium ratio (SMD, 0.43; 95% CI, 0.16-0.71; P = 0.0075; I2 = 90.4%), elongation (SMD, -0.94; 95% CI, -1.12 to -0.76; P = 0.0005; I2 = 0%), flatness (SMD, -0.87; 95% CI, -1.04 to -0.71; P = 0.0005; I2 = 0%), and sphericity (SMD, -0.62; 95% CI, -1.06 to -0.17; P = 0.0215; I2 = 67.9%). A significant risk of publication bias was estimated for the ellipticity index (P = 0.0360) and volume (P = 0.0030). CONCLUSIONS Based on the results of a meta-analysis containing 39 studies, the nonsphericity index, undulation index, elongation, flatness, and sphericity demonstrated the most consistent correlation with rupture status.
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Affiliation(s)
- Mark D Johnson
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA; Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio, USA.
| | - Paolo Palmisciano
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA; Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Ali S Yamani
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Samer S Hoz
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA; Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio, USA
| | - Charles J Prestigiacomo
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA; Department of Neurosurgery, University of Cincinnati, Cincinnati, Ohio, USA
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Frączek MJ, Błoński MJ, Kliś KM, Krzyżewski RM, Polak J, Stachura K, Kwinta BM. Predictors of intraoperative intracranial aneurysm rupture in patients with subarachnoid hemorrhage: a retrospective analysis. Acta Neurol Belg 2023; 123:1717-1724. [PMID: 35759212 DOI: 10.1007/s13760-022-02005-z] [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: 04/04/2022] [Accepted: 06/09/2022] [Indexed: 11/01/2022]
Abstract
PURPOSE Intraoperative cerebral aneurysm rupture (IOR) is a common phenomenon with a frequency of around 19%. Research regarding IOR lacks an analysis of its predictors. METHODS We retrospectively examined all saccular aneurysms, in 198 patients with subarachnoid hemorrhage, surgically treated from 2013 to 2019. Operative reports, patient histories, blood test results, discharge summaries, and radiological data were reviewed. IOR was defined as any bleeding from the aneurysm during surgery, preceding putting a clip on its neck, regardless of how trivial. RESULTS The frequency of IOR was 20.20%. Patients with IOR had higher aneurysm dome size (9.43 ± 8.39 mm vs. 4.96 ± 2.57 mm; p < 0.01). The presence of blood clot on the aneurysm dome was significantly associated with IOR (12.50% vs. 2.53%; p < 0.01). We also associated lamina terminalis fenestration during surgery (7.50% vs. 21.52%; p = 0.04) and multiple aneurysms (5.00% vs. 18.35%; p = 0.038) with a lower risk of IOR. Glucose blood levels were also elevated in patients with IOR (7.47 ± 2.78 mmol/l vs. 6.90 ± 2.22 mmol/l; p = 0.04). Multivariate analysis associated that urea blood levels (OR 0.55, 0.33 to 0.81, p < 0.01) and multiple aneurysms (OR 0.04, 0.00 to 0.37, p = 0.014) were protective factors against the occurrence of IOR. CONCLUSION Large dome size of an aneurysm, a blood clot on the aneurysm dome and elevated glucose blood levels can be IOR predictive. Lamina terminalis fenestration, the appearance of multiple aneurysms, and high urea blood levels may be associated with a lower risk of such an event.
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Affiliation(s)
- Maciej J Frączek
- Faculty of Medicine, Jagiellonian University Medical College, Św. Anny 12 Street 31-008, Kraków, Poland.
| | - Miłosz J Błoński
- Faculty of Medicine, Jagiellonian University Medical College, Św. Anny 12 Street 31-008, Kraków, Poland
| | - Kornelia M Kliś
- Department of Neurosurgery and Neurotraumatology, Jagiellonian University Medical College, Kraków, Poland
| | - Roger M Krzyżewski
- Department of Neurosurgery and Neurotraumatology, Jagiellonian University Medical College, Kraków, Poland
| | - Jarosław Polak
- Department of Neurosurgery and Neurotraumatology, Jagiellonian University Medical College, Kraków, Poland
| | - Krzysztof Stachura
- Department of Neurosurgery and Neurotraumatology, Jagiellonian University Medical College, Kraków, Poland
| | - Borys M Kwinta
- Department of Neurosurgery and Neurotraumatology, Jagiellonian University Medical College, Kraków, Poland
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Kjeldsberg HA, Bergersen AW, Valen-Sendstad K. Automated landmarking of bends in vascular structures: a comparative study with application to the internal carotid artery. Biomed Eng Online 2021; 20:120. [PMID: 34838018 PMCID: PMC8626959 DOI: 10.1186/s12938-021-00957-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022] Open
Abstract
Automated tools for landmarking the internal carotid artery (ICA) bends have the potential for efficient and objective medical image-based morphometric analysis. The two existing algorithms rely on numerical approximations of curvature and torsion of the centerline. However, input parameters, original source code, comparability, and robustness of the algorithms remain unknown. To address the former two, we have re-implemented the algorithms, followed by sensitivity analyses. Of the input parameters, the centerline smoothing had the least impact resulting in 6-7 bends, which is anatomically realistic. In contrast, centerline resolution showed to completely over- and underestimated the number of bends varying from 3 to 33. Applying the algorithms to the same cohort revealed a variability that makes comparison of results between previous studies questionable. Assessment of robustness revealed how one algorithm is vulnerable to model smoothness and noise, but conceptually independent of application. In contrast, the other algorithm is robust and consistent, but with limited general applicability. In conclusion, both algorithms are equally valid albeit they produce vastly different results. We have provided a well-documented open-source implementation of the algorithms. Finally, we have successfully performed this study on the ICA, but application to other vascular regions should be performed with caution.
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Affiliation(s)
- Henrik A Kjeldsberg
- Department of Computational Physiology, Simula Research Laboratory AS, Kristian Augusts gate 23, 0164 Oslo, Norway
| | - Aslak W Bergersen
- Department of Computational Physiology, Simula Research Laboratory AS, Kristian Augusts gate 23, 0164 Oslo, Norway
| | - Kristian Valen-Sendstad
- Department of Computational Physiology, Simula Research Laboratory AS, Kristian Augusts gate 23, 0164 Oslo, Norway
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Zhang J, Lai PMR, Can A, Mukundan S, Castro VM, Dligach D, Finan S, Gainer VS, Shadick NA, Savova G, Murphy SN, Cai T, Weiss ST, Du R. Tobacco use and age are associated with different morphologic features of anterior communicating artery aneurysms. Sci Rep 2021; 11:4791. [PMID: 33637879 PMCID: PMC7910488 DOI: 10.1038/s41598-021-84315-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 02/09/2021] [Indexed: 11/24/2022] Open
Abstract
We present a cohort of patients with anterior communicating artery (ACoA) aneurysms to investigate morphological characteristics and clinical factors associated with rupture of the aneurysms. 505 patients with ACoA aneurysms were identified at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016, with available CT angiography (CTA). Three-dimensional (3D) reconstructions were performed to evaluate aneurysmal morphologic features, including location, projection, irregularity, the presence of daughter dome, height, height/width ratio, and relationships between surrounding vessels. Patient risk factors assessed included patient age, sex, tobacco use, alcohol use, and family history of aneurysms and aneurysmal subarachnoid hemorrhage. Logistic regression was used to build a predictive ACoA score for rupture. Morphologic features associated with ruptured ACoA aneurysms were the presence of a daughter dome (OR 21.4, 95% CI 10.6-43.1), smaller neck diameter (OR 0.55, 95% CI 0.42-0.71), larger aspect ratio (OR 3.57, 95% CI 2.05-6.24), larger flow angle (OR 1.03, 95% CI 1.02-1.05), and smaller ipsilateral A2-ACoA angle (OR 0.98, 95% CI 0.97-1.00). Tobacco use was predominantly associated with morphological factors intrinsic to the aneurysm that were associated with rupture while younger age was also associated with morphologic features extrinsic to the aneurysm that were associated with rupture. The ACoA score had good predictive capacity for rupture with AUC = 0.92 using the 0.632 bootstrap cross-validation for correction of overfitting bias. Ruptured ACoA aneurysms were associated with morphological features that are simple to assess using a simple scoring system. Tobacco use and younger age were predominantly associated with intrinsic and extrinsic morphological features characteristic of rupture, respectively.
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Affiliation(s)
- Jian Zhang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Pui Man Rosalind Lai
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Anil Can
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
- Department of Neurosurgery, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | | | - Victor M Castro
- Research Information Systems and Computing, Massachusetts General Brigham, Boston, MA, USA
| | - Dmitriy Dligach
- Boston Children's Hospital Informatics Program, Boston, MA, USA
- Department of Computer Science, Loyola University, Chicago, IL, USA
| | - Sean Finan
- Boston Children's Hospital Informatics Program, Boston, MA, USA
| | - Vivian S Gainer
- Research Information Systems and Computing, Massachusetts General Brigham, Boston, MA, USA
| | - Nancy A Shadick
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA, USA
| | - Guergana Savova
- Boston Children's Hospital Informatics Program, Boston, MA, USA
| | - Shawn N Murphy
- Research Information Systems and Computing, Massachusetts General Brigham, Boston, MA, USA
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Tianxi Cai
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Rose Du
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA.
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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Fan T, Zhou Z, Fang W, Wang W, Xu L, Huo Y. Morphometry and hemodynamics of coronary artery aneurysms caused by atherosclerosis. Atherosclerosis 2019; 284:187-193. [DOI: 10.1016/j.atherosclerosis.2019.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 02/18/2019] [Accepted: 02/22/2019] [Indexed: 12/20/2022]
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Can A, Lai PMR, Castro VM, Yu S, Dligach D, Finan S, Gainer V, Shadick NA, Savova G, Murphy S, Cai T, Weiss ST, Du R. Decreased Total Iron Binding Capacity May Correlate with Ruptured Intracranial Aneurysms. Sci Rep 2019; 9:6054. [PMID: 30988354 PMCID: PMC6465340 DOI: 10.1038/s41598-019-42622-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 04/04/2019] [Indexed: 12/13/2022] Open
Abstract
Iron and its derivatives play a significant role in various physiological and biochemical pathways, and are influenced by a wide variety of inflammatory, infectious, and immunological disorders. We hypothesized that iron and its related factors play a role in intracranial aneurysm pathophysiology and investigated if serum iron values are associated with ruptured intracranial aneurysms. 4,701 patients with 6,411 intracranial aneurysms, including 1201 prospective patients, who were diagnosed at the Massachusetts General Hospital and Brigham and Women’s Hospital between 1990 and 2016 were evaluated. A total of 366 patients with available serum iron, ferritin and total iron binding capacity (TIBC) values were ultimately included in the analysis. 89% of included patients had anemia. Patients were categorized into ruptured and non-ruptured groups. Univariable and multivariable logistic regression analyses were performed to determine the association between ruptured aneurysms and iron, ferritin, and TIBC. TIBC values (10−3 g/L) within 1 year of diagnosis (OR 0.41, 95% CI 0.28–0.59) and between 1 and 3 years from diagnosis (OR 0.52, 95% CI 0.29–0.93) were significantly and inversely associated with intracranial aneurysm rupture. In contrast, serum iron and ferritin were not significant. In this case-control study, low TIBC was significantly associated with ruptured aneurysms, both in the short- and long term. However, this association may not apply to the general population as there may be a selection bias as iron studies were done in a subset of patients only.
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Affiliation(s)
- Anil Can
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Pui Man Rosalind Lai
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Victor M Castro
- Research Information Systems and Computing, Partners Healthcare, Boston, MA, USA
| | - Sheng Yu
- Center for Statistical Science, Tsinghua University, Beijing, China
| | - Dmitriy Dligach
- Department of Computer Science, Loyola University, Chicago, IL, USA
| | - Sean Finan
- Boston Children's Hospital Informatics Program, Boston, MA, USA
| | - Vivian Gainer
- Research Information Systems and Computing, Partners Healthcare, Boston, MA, USA
| | - Nancy A Shadick
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA, USA
| | - Guergana Savova
- Boston Children's Hospital Informatics Program, Boston, MA, USA
| | - Shawn Murphy
- Research Information Systems and Computing, Partners Healthcare, Boston, MA, USA.,Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Tianxi Cai
- Biostatistics, Harvard School T. H. Chan of Public Health, Boston, MA, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Rose Du
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. .,Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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Larsen N, von der Brelie C, Trick D, Riedel CH, Lindner T, Madjidyar J, Jansen O, Synowitz M, Flüh C. Vessel Wall Enhancement in Unruptured Intracranial Aneurysms: An Indicator for Higher Risk of Rupture? High-Resolution MR Imaging and Correlated Histologic Findings. AJNR Am J Neuroradiol 2018; 39:1617-1621. [PMID: 30026386 DOI: 10.3174/ajnr.a5731] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 06/01/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies have suggested that wall enhancement of unruptured intracranial aneurysms in high-resolution MR imaging might serve as an imaging biomarker for higher risk of rupture. Histologic studies have revealed a possible association among inflammatory processes, degeneration, and destabilization of the aneurysm wall preceding rupture. Understanding the histologic condition underlying aneurysm wall enhancement could be an important step toward assessing the value of this method for risk stratification. We present our observations of aneurysm wall enhancement in MR vessel wall imaging and underlying histologic changes. MATERIALS AND METHODS We reviewed records of patients with an unruptured middle cerebral artery aneurysm who underwent MR vessel wall imaging before aneurysm clipping. Contrast enhancement of the aneurysm wall was dichotomized into either none/faint or strong. Histologic analysis included myeloperoxidase stain for detection of inflammatory cell invasion and CD34 stain for assessment of neovascularization and vasa vasorum. RESULTS Thirteen aneurysms were included. Five aneurysms showed strong wall enhancement. Among these, myeloperoxidase staining revealed inflammatory cell infiltration in 4. Three showed neovascularization. In 2 aneurysms, vasa vasorum were present. Seven aneurysms did not show wall enhancement; 1 had only mild enhancement. None of these bore evidence of inflammatory cell invasion or neovascularization, and they all lacked vasa vasorum. CONCLUSIONS Wall enhancement in MR vessel wall imaging is associated with inflammatory cell invasion, neovascularization, and the presence of vasa vasorum. Enhancement does not occur when histologic signs of inflammation are absent. Our results support the hypothesis that MR vessel wall imaging could provide valuable information for risk stratification.
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Affiliation(s)
- N Larsen
- From the Department of Radiology and Neuroradiology (N.L., C.H.R., T.L., J.M., O.J.)
| | - C von der Brelie
- Department of Neurosurgery (C.v.d.B., M.S., C.F.).,Department of Neurosurgery (C.v.d.B.), University Hospital Göttingen, Göttingen, Germany
| | - D Trick
- Institute of Pathology (D.T.), University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - C H Riedel
- From the Department of Radiology and Neuroradiology (N.L., C.H.R., T.L., J.M., O.J.)
| | - T Lindner
- From the Department of Radiology and Neuroradiology (N.L., C.H.R., T.L., J.M., O.J.)
| | - J Madjidyar
- From the Department of Radiology and Neuroradiology (N.L., C.H.R., T.L., J.M., O.J.)
| | - O Jansen
- From the Department of Radiology and Neuroradiology (N.L., C.H.R., T.L., J.M., O.J.)
| | - M Synowitz
- Department of Neurosurgery (C.v.d.B., M.S., C.F.)
| | - C Flüh
- Department of Neurosurgery (C.v.d.B., M.S., C.F.)
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Morphometry and hemodynamics of posterior communicating artery aneurysms: Ruptured versus unruptured. J Biomech 2018; 76:35-44. [DOI: 10.1016/j.jbiomech.2018.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 01/12/2018] [Accepted: 05/10/2018] [Indexed: 11/20/2022]
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[Clinical magnetic resonance imaging : Frequent incidental cerebral findings]. Radiologe 2017; 57:251-262. [PMID: 28280860 DOI: 10.1007/s00117-017-0229-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The increasing use of magnetic resonance imaging (MRI) in clinical diagnostics means that patients and physicians are confronted more often with incidental findings. In the literature there are fluctuating data on the incidence of such findings and guidelines concerning the further procedure exist in only very few cases, such as incidental aneurysms and pituitary adenomas. The diagnostic and therapeutic implications which can be derived from incidental findings depend on multiple factors, such as anatomical location, patient age, comorbidity and patient wishes. For this reason it often makes sense to refer patients with incidental findings to an interdisciplinary neurological center at an early stage. In this review frequent incidental cerebral findings, epidemiological data, imaging criteria and, where possible, recommendations for the further procedure are shown.
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