Article
Radiology, Nuclear Medicine & Medical Imaging
Junqiang Feng, Xinke Liu, Zihao Zhang, Yue Wu, Zhixin Li, Qiang Zhang, Yuhua Jiang, Wei You, Peng Liu, Yan Wang, Mahmud Mossa-Basha, David Saloner, Youxiang Li, Chengcheng Zhu
Summary: 7 T MRI offers superior visualization of intracranial aneurysm wall with higher sharpness compared to 3 T. 3 T tends to overestimate the wall thickness in comparison to 7 T. There is a positive correlation between aneurysm size and wall thickness.
EUROPEAN RADIOLOGY
(2022)
Article
Medicine, General & Internal
Lukasz Zwarzany, Ernest Tyburski, Wojciech Poncyljusz
Summary: Aneurysm wall enhancement on HR VW-MRI coexists with conventional risk factors for aneurysm rupture, with enhanced aneurysms being larger, having higher dome-to-neck ratios, and more irregular shapes. The proportion of enhanced aneurysms is higher in older patients and those with a history of aneurysmal SAH. The mean PHASES score is significantly higher for enhanced aneurysms.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Neuroimaging
Mingzi Zhang, Xiaoxi Hou, Yi Qian, Winston Chong, Xin Zhang, Chuan-Zhi Duan, Chubin Ou
Summary: This study investigates the use of flowrate-independent parameters in predicting the stability of aneurysms and compares their performance against conventional parameters. The results show that the flowrate-independent hemodynamic parameters outperform the conventional parameters in predicting aneurysm stability, and can be potentially used when real vascular boundary conditions are unavailable for assessing the risk of aneurysm rupture.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Review
Cardiac & Cardiovascular Systems
Anu Aggarwal, Courtney L. Jennings, Emily Manning, Scott J. Cameron
Summary: Platelets are small, anucleate entities that bud from megakaryocytes in the bone marrow. They play a critical role in regulating thrombosis and hemostasis, but also have important functions in inflammation, vascular remodeling, and antiplatelet medication.
CIRCULATION RESEARCH
(2023)
Review
Radiology, Nuclear Medicine & Medical Imaging
Ningdong Kang, Ye Qiao, Bruce A. Wasserman
Summary: This article reviews the clinical implementation and research progress of intracranial vessel wall MRI, aiming to help healthcare professionals improve the accurate interpretation of MRI scan results.
Article
Clinical Neurology
Hidenori Endo, Naoko Mori, Shunji Mugikura, Kuniyasu Niizuma, Shunsuke Omodaka, Kei Takase, Teiji Tominaga
Summary: This study aimed to evaluate new quantitative parameters of aneurysm wall enhancement (AWE) on magnetic resonance vessel wall imaging (VWI) in differentiating between stable and evolving unruptured intracranial aneurysms (UIAs). The results showed significant differences in shape features and AWE between the stable and evolving groups, indicating the effectiveness of quantitative combined analysis for distinguishing between these two conditions.
Article
Neuroimaging
Eytan Raz, Adam Goldman-Yassen, Anna Derman, Ahrya Derakhshani, John Grinstead, Seena Dehkharghani
Summary: This study evaluated the use of high-resolution vessel wall MRI (VWI) for surveillance of flow diverter (FD) treated aneurysms. The results showed that VWI can provide excellent depiction of FD-treated aneurysms and allow robust evaluation of the parent vessel and aneurysm wall.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Luigi Cirillo, Arianna Rustici, Francesco Toni, Matteo Zoli, Fiorina Bartiromo, Laura Ludovica Gramegna, Domenico Cicala, Caterina Tonon, Ferdinando Caranci, Raffaele Lodi
Summary: Vessel Wall MRI (VW-MRI) is an emerging MR sequence used for the diagnosis and treatment of cerebrovascular diseases. Although there is no commercially available optimized VW-MRI sequence for intracranial imaging, this technique plays an important role in the management of cerebrovascular diseases.
Article
Neuroimaging
Li-Mei Lin, Jonathan Collard de Beaufort, Alice S. Wang, Jessica K. Campos, David A. Zarrin, Benjamen M. Meyer, Geoffrey P. Colby, Alexander L. Coon
Summary: This study investigated the off-label use of the Comaneci device for improving vessel wall apposition in post-deployed flow diversion stents (FDS). The results showed that out of 74 cases, the Comaneci device was used in 22 cases (29.7%) to enhance vessel wall apposition. The deployment and retrieval of the Comaneci device were successful in all cases, with only 2 cases (9%) requiring subsequent balloon angioplasty.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Article
Clinical Neurology
Shunsuke Omodaka, Hidenori Endo, Kuniyasu Niizuma, Toshiki Endo, Kenichi Sato, Atsushi Saito, Hiroki Uchida, Yasushi Matsumoto, Teiji Tominaga
Summary: Recent studies have shown that aneurysm wall enhancement (AWE) can serve as an indicator for aneurysm evolution in unruptured intracranial aneurysms (UIAs). This study assessed the degree of AWE in unruptured posterior communicating artery (PcomA) aneurysms with oculomotor nerve palsy (ONP) and found that AWE was significantly stronger in evolving UIAs with ONP, suggesting its potential utility for risk stratification in evolving UIAs.
JOURNAL OF NEUROSURGERY
(2021)
Article
Neuroimaging
Ryan Phillip Sabotin, Alberto Varon, Jorge A. Roa, Ashrita Raghuram, Daizo Ishii, Marco Nino, Adam E. Galloy, Devanshee Patel, Madhavan L. Raghavan, David Hasan, Edgar A. Samaniego
Summary: This study utilized advanced imaging techniques and computational analysis to investigate the unique characteristics and potential mechanisms of instability in cerebral fusiform aneurysms. The results showed that enhancing fusiform aneurysms had larger volume and diameter, more enhancement of reference vessels, and were more likely to exhibit microhemorrhages compared to non-enhancing aneurysms. Computational fluid dynamics and finite element analysis provided insights into the various pathophysiological processes underlying the formation and growth of different types of fusiform aneurysms.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2021)
Article
Biophysics
Amir Sabernaeemi, M. Barzegar Gerdroodbary, Sajad Salavatidezfouli, Peiman Valipour
Summary: The use of stent-assisted coiling for intracranial aneurysms may lead to the deformation of local vasculature. This study investigates the hemodynamic features of blood flow in four different types of intracranial aneurysms with and without stent intervention. The results show that stenting decreases blood velocity, wall pressure, and wall shear stress, while it has inconsistent effects on neck inflow rate among the aneurysms.
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
(2023)
Article
Clinical Neurology
Hye Na Jung, Sang-il Suh, Inseon Ryoo, InSeong Kim
Summary: This study evaluated the clinical utility of 3D high-resolution vessel wall magnetic resonance imaging (HR-VWI) in patients with diffuse nonaneurysmal SAH, finding that most of the 17 patients had abnormal findings on HR-VWI with favorable outcomes. The 3D HR-VWI revealed various hidden pathologies and impacted the management of SAH, suggesting it can be a complementary diagnostic method for patients with diffuse nonaneurysmal SAH.
CLINICAL NEURORADIOLOGY
(2021)
Article
Clinical Neurology
Takeshi Hara, Toshinori Matsushige, Michitsura Yoshiyama, Yukishige Hashimoto, Shohei Kobayashi, Shigeyuki Sakamoto
Summary: Recent studies have shown that aneurysm wall enhancement (AWE) on MR vessel wall imaging (VWI) is related to wall degeneration and inflammatory cell infiltration. The pretreatment aneurysm wall status on VWI may be associated with recurrence after endovascular treatment.
JOURNAL OF NEUROSURGERY
(2023)
Article
Biotechnology & Applied Microbiology
Burton Carbino, Alexander Guy, Michael Durka, Rana Zakerzadeh
Summary: The objective of this study is to analyze the impact of intraluminal thrombus (ILT) presence and morphology on oxygen transport in abdominal aortic aneurysms (AAA). The study found that ILT reduces oxygen flux to the arterial wall, creating an inflammatory environment and decreasing its strength. The geometry of ILT was also found to potentially affect AAA rupture. ILT thickness and length were found to be the parameters that most significantly influence decreased oxygen flow and concentration values, while thick thrombi exacerbate hypoxic conditions in the arterial wall. Conversely, arterial wall oxygen concentration was nearly independent of the AAA bulge diameter.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Neuroimaging
Radoslav Raychev, Hamidreza Saber, Jeffrey L. Saver, Jason D. Hinman, Scott Brown, Fernando Vinuela, Gary Duckwiler, Reza Jahan, Satoshi Tateshima, Viktor Szeder, May Nour, Geoffrey P. Colby, Lucas Restrepo, Doojin Kim, Mersedeh Bahr-Hosseini, Latisha Ali, Sidney Starkman, Neal Rao, Raul G. Nogueira, David Liebeskind
Summary: Eloquent PMC-tissue reperfusion plays a key role in functional outcome, with a greater impact compared to volume-based (TICI) degree of partial reperfusion alone. PMC-targeted revascularization among patients with partial reperfusion may further decrease post-stroke disability after EVT.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2021)
Article
Clinical Neurology
Yinn Cher Ooi, Brian Behdad Miremadi, Faisal Mukarram, Naoki Kaneko, May Nour, Geoffrey Colby, Reza Jahan, Satoshi Tateshima, Gary Duckwiler, Jeffrey Saver, Viktor Szeder
Summary: The study aimed to evaluate the safety and efficacy of IVT in patients with AIS and LVO undergoing MT. Results showed that IVT treatment before MT led to reperfusion in 10% of patients, reduced mortality and severe disability at 90 days, had no impact on door-to-puncture time, and had similar incidence of hemorrhage compared to MT only.
WORLD NEUROSURGERY
(2021)
Review
Clinical Neurology
C. B. Beaman, N. Kaneko, P. M. Meyers, S. Tateshima
Summary: Robotic interventional neuroradiology is an emerging field with the potential to enhance patient safety and expand systems of care; through the use of endovascular robots, operators can control guidewires and catheters from a long distance, providing more convenient medical services for patients.
AMERICAN JOURNAL OF NEURORADIOLOGY
(2021)
Article
Clinical Neurology
Rishi Gupta, Jeffrey L. Saver, Elad Levy, Osama O. Zaidat, Dileep Yavagal, David S. Liebeskind, Ahmad Khaldi, Bradley Gross, Michael Lang, Sandra Narayanan, Brian Jankowitz, Kenneth Snyder, Adnan Siddiqui, Jason Davies, Eugene Lin, Ameer Hassan, Ricardo Hanel, Amin Aghaebrahim, Ritesh Kaushal, Ali Malek, Nils Mueller-Kronast, Robert Starke, Hormozd Bozorgchami, Gary Nesbit, Masahiro Horikawa, Ryan Priest, Jesse Liu, Ronald F. Budzik, Peter Pema, Nirav Vora, M. Asif Taqi, Edgar Samaniego, Qingliang Tony Wang, Erez Nossek, Guilherme Dabus, Italo Linfante, Ajit Puri, Eitan Abergel, Sidney Starkman, Satoshi Tateshima, Ashutosh P. Jadhav
Summary: The Tigertriever stentriever device was shown to be highly effective and safe compared to Trevo and Solitaire devices in removing thrombus in patients with large-vessel occlusive stroke eligible for mechanical thrombectomy, according to a multicenter trial.
Article
Clinical Neurology
Naoki Kaneko, Mahsa Ghovvati, Yutaro Komuro, Lea Guo, Kasra Khatibi, Lucido L. Ponce Mejia, Hamidreza Saber, Nasim Annabi, Satoshi Tateshima
Summary: The study found that clot stiffness had an impact on the success of endovascular thrombectomy using different devices. The Neurostar catheter with hydro-separator showed better recanalization rates compared to a commercially available aspiration catheter and stent retriever in experimental models.
INTERVENTIONAL NEURORADIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Gokberk Unal, Jesse Jones, Sevana Baghdasarian, Naoki Kaneko, Ehsan Shirzaei Sani, Sohyung Lee, Shima Gholizadeh, Satoshi Tateshima, Nasim Annabi
Summary: A novel approach involving gluing of arteries and transmural anastomosis from a healthy donor into an ischemic recipient was developed for the difficult treatment of cerebrovascular ischemia. Two hydrogel-based glues with distinct mechanical properties were engineered and tested to achieve stable anastomosis. Testing in vitro and in vivo demonstrated that the new two-glue system was feasible for endovascular anastomosis and showed promising results in terms of mechanical properties and biocompatibility.
BIOENGINEERING & TRANSLATIONAL MEDICINE
(2021)
Article
Neuroimaging
Kasra Khatibi, Hamidreza Saber, Ramin Javahery, Naoki Kaneko, Lucido Luciano Ponce Mejia, Satoshi Tateshima
Summary: A teenager with a history of acute myeloid leukemia presented with symptoms such as headache, nausea and blurry vision. MRI findings revealed a myeloid sarcoma within the right sigmoid sinus. A biopsy confirmed the recurrence of leukemia, guiding targeted oncologic treatment.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2022)
Editorial Material
Neuroimaging
Charles Beaman, Hamidreza Saber, Satoshi Tateshima
Summary: Robotic catheter angiography is an emerging technology that can improve procedural precision and reduce occupational hazards. This study presents initial experiences with the CorPath GRX Robotic System, including technical considerations and operational challenges.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2022)
Reprint
Neuroimaging
Satoshi Tateshima, Hamidreza Saber, Geoffrey P. Colby, Dieter Enzmann, Gary Duckwiler
Summary: Robotic-assisted technology has shown promise in coronary and peripheral vascular interventions and has been demonstrated to be effective in neuro-interventions. This report demonstrates the feasibility of using the robotic-assisted platform for spinal angiography.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2023)
Article
Clinical Neurology
Naoki Kaneko, Ariel Takayanagi, Hamidreza Saber, Lea Guo, Satoshi Tateshima
Summary: The study evaluated the efficacy of the Stabilizer for navigation in challenging vascular models and found that it significantly improved success rates in handling giant aneurysms, severe tortuosity, and M1 stenosis models compared to conventional wires.
INTERVENTIONAL NEURORADIOLOGY
(2022)
Article
Neuroimaging
Hamidreza Saber, Charles Beaman, Satoshi Tateshima
Summary: In this study, we demonstrate the feasibility of robot-assisted neurointervention technology in a patient with acute epistaxis complicated by severe COVID-19.
JOURNAL OF NEUROINTERVENTIONAL SURGERY
(2022)
Article
Clinical Neurology
Hasitha Milan Samarage, Wi Jin Kim, David Zarrin, Keshav Goel, Anthony Chin-Hsiu Wang, Jeremiah Johnson, Naoki Kaneko, May Nour, Viktor Szeder, Satoshi Tateshima, Reza Jahan, Gary Duckwiler, Geoffrey Philip Colby
Summary: This retrospective case series analyzed the efficacy of middle meningeal artery (MMA) embolization in chronic subdural hematoma (CSDH) patients. The study found that older patients took longer to completely resolve CSDH, and larger pre- and post-embolization CSDH volumes were associated with longer resolution time. Distal penetration of embolic material into the falx may lead to more rapid improvement of CSDH.
Article
Clinical Neurology
Radoslav Raychev, Stanimir Sirakov, Alexander Sirakov, Hamidreza Saber, Fernando Vinuela, Reza Jahan, May Nour, Viktor Szeder, Geoffrey Colby, Gary Duckwiler, Satoshi Tateshima
Summary: This study aimed to investigate the hemodynamic changes in intracranial aneurysms and parent vessels after flow diversion (FD) treatment, as well as the occurrence of silent emboli. The results showed that the early and sustained visibility of the eclipse sign was the most reliable predictor of permanent aneurysm occlusion at 12 months. Additionally, none of the patients experienced silent emboli.
FRONTIERS IN NEUROLOGY
(2022)
Article
Clinical Neurology
Charles Beaman, Jessalyn K. Holodinsky, Mayank Goyal, Satoshi Tateshima, Michael D. Hill, Jeffrey L. Saver, Noreen Kamal
Summary: This study investigated the impact of telerobotic endovascular therapy (EVT) on stroke networks and found that it has the potential to improve care for stroke patients, particularly in rural areas. The study also revealed that a decrease in procedural success rate has a greater impact on telerobotic EVT compared to procedural time delays.
INTERVENTIONAL NEURORADIOLOGY
(2022)
Article
Clinical Neurology
Brian Tsui, Iris E. Chen, May Nour, Shingo Kihira, Elham Tavakkol, Jennifer Polson, Haoyue Zhang, Joe Qiao, Mersedeh Bahr-Hosseini, Corey Arnold, Satoshi Tateshima, Noriko Salamon, J. Pablo Villablanca, Geoffrey P. Colby, Reza Jahan, Gary Duckwiler, Jeffrey L. Saver, David S. Liebeskind, Kambiz Nael
Summary: This study compares the diagnostic performance and predictive impact of perfusion collateral index and hypoperfusion intensity ratio in collateral assessment. The results show that the perfusion collateral index outperforms the hypoperfusion intensity ratio in evaluating collateral status, infarct growth, and functional outcomes.
AMERICAN JOURNAL OF NEURORADIOLOGY
(2023)