keyword
https://read.qxmd.com/read/37015553/efficient-few-shot-object-detection-via-knowledge-inheritance
#21
JOURNAL ARTICLE
Ze Yang, Chi Zhang, Ruibo Li, Yi Xu, Guosheng Lin
Few-shot object detection (FSOD), which aims at learning a generic detector that can adapt to unseen tasks with scarce training samples, has witnessed consistent improvement recently. However, most existing methods ignore the efficiency issues, e.g., high computational complexity and slow adaptation speed. Notably, efficiency has become an increasingly important evaluation metric for few-shot techniques due to an emerging trend toward embedded AI. To this end, we present an efficient pretrain-transfer framework (PTF) baseline with no computational increment, which achieves comparable results with previous state-of-the-art (SOTA) methods...
December 14, 2022: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://read.qxmd.com/read/36895244/endovascular-treatment-of-a-ruptured-blister-like-aneurysm-at-an-azygos-anterior-cerebral-artery-a-case-report-and-review-of-the-literature
#22
Shirabe Matsumoto, Noriyuki Fumoto, Masahiko Tagawa, Hideo Tanaka
BACKGROUND: Endovascular treatment for a ruptured blister-like aneurysm (BLA) has recently become a hopeful approach. BLAs are usually located on the dorsal wall of the internal carotid artery, whereas one located on the azygos anterior cerebral artery (ACA) is so rare, it has never been reported. We report a case of a ruptured BLA arising at the distal bifurcation of an azygos ACA treated by stent-assisted coil embolization. CASE DESCRIPTION: A 73-year-old woman presented with a disturbance of consciousness...
2023: Surgical Neurology International
https://read.qxmd.com/read/36769737/endovascular-treatment-of-ruptured-blood-blister-like-aneurysms-using-the-lvis-evo-stents
#23
JOURNAL ARTICLE
Kinga Kubiak, Wojciech Poncyljusz
Blood blister-like aneurysms (BBAs) are rare cerebrovascular lesions that face serious challenges in surgical as well as endovascular treatment. In this paper, we present our experience in treating BBAs using the LVIS EVO stents. A total of 10 patients (mean age of 56.1 years) with 13 BBAs, who were admitted to our university hospital between April 2020 and November 2021 with a subarachnoid hemorrhage (SAH) due to aneurysm rupture, were treated using the LVIS EVO stents. Treatment of the BBAs consisted of stent-assisted coiling in four patients and stenting in six patients...
January 30, 2023: Journal of Clinical Medicine
https://read.qxmd.com/read/36751451/treatment-strategy-for-giant-thrombosed-aneurysm-of-the-basilar-artery-with-associated-obstructive-hydrocephalus
#24
JOURNAL ARTICLE
Shinichiro Yoshida, Kaisei Kamatani, Kousei Maruyama, Yoshiaki Hama, Noriaki Tashiro, Fumihiro Hiraoka, Shigetoshi Yano, Hiroshi Aikawa, Yoshinori Go, Kiyoshi Kazekawa
BACKGROUND: There is no established adequate treatment for thrombosed aneurysm of the basilar artery with obstructive hydrocephalus. We conducted coil embolization and peritoneal shunting followed by placement of a stent expected to exert flow diversion (FD) effects to treat 2 patients with giant thrombosed aneurysms of the basilar artery with associated obstructive hydrocephalus, with good results. METHODS: From April 2019 to March 2021, consecutive two cases of symptomatic hydrocephalus due to giant thrombosed aneurysms in the posterior cranial fossa at our hospital were treated...
2023: Surgical Neurology International
https://read.qxmd.com/read/36729762/the-angiographic-and-clinical-follow-up-outcomes-of-the-wide-necked-and-complex-intracranial-aneurysms-treated-with-lvis-evo-assisted-coiling
#25
JOURNAL ARTICLE
Kubilay Aydin, Mani Puthuran, Yilmaz Onal, Mehmet Barburoglu, Arun Chandran, Mynzhylky Berdikhojayev, Gilbert Gravino, Yunus Emre Senturk, Serhat Aygun, Murat Velioglu, Serra Sencer
BACKGROUND: The Low Profile Visible Intraluminal Support EVO (LVIS EVO) is a self-expandable braided stent, which was recently introduced for the treatment of intracranial aneurysms. Full visibility of the stent and a relatively high metal coverage ratio are the unique features of the LVIS EVO. OBJECTIVE: To assess the safety, efficacy, and midterm durability of LVIS EVO stent-assisted coiling for the treatment of wide-necked intracranial aneurysms. METHODS: The endovascular databases were reviewed to identify patients treated with LVIS EVO-assisted coiling...
December 12, 2022: Neurosurgery
https://read.qxmd.com/read/36561296/stent-assisted-coiling-vs-coiling-alone-of-ruptured-tiny-intracranial-aneurysms-a-contemporary-cohort-study-in-a-high-volume-center
#26
JOURNAL ARTICLE
Guanghao Zhang, Yina Wu, Yanpeng Wei, Gaici Xue, Rundong Chen, Nan Lv, Xiaoxi Zhang, Guoli Duan, Ying Yu, Qiang Li, Yi Xu, Qinghai Huang, Pengfei Yang, Qiao Zuo, Jianmin Liu
OBJECTIVE: This study aims to compare the safety and efficacy of stent-assisted coiling (SAC) with those of coiling alone (CA) for the treatment of ruptured tiny intracranial aneurysms. METHODS: We enrolled 245 patients with ruptured tiny intracranial aneurysms treated with coil embolization. Patients were grouped into SAC and CA groups. Baseline characteristics, periprocedural complications, clinical outcomes, and angiographic results were compared between the two groups...
2022: Frontiers in Neurology
https://read.qxmd.com/read/36527944/treatment-of-intracranial-bifurcation-aneurysms-with-x-stent-assisted-coiling-a-case-series-and-literature-review
#27
JOURNAL ARTICLE
Deyuan Zhu, Zhe Li, Chao Zou, Wei Cao, Ping Zhang, Ying Yu, Qiang Li, Rui Zhao, Qinghai Huang, Pengfei Yang, Yi Xu, Bo Hong, Jianmin Liu, Yibin Fang
PURPOSE: To clarify the safety and efficacy of "X" stent-assisted coiling (X-stenting) for the treatment of intracranial bifurcation aneurysms and to review the literature. METHODS: We retrospectively reported five consecutive patients with six intracranial bifurcation aneurysms who underwent X-stenting between June 2014 and June 2020. The clinical and angiographic results were analyzed. We also performed an extensive PubMed review of medical literature up to June 2021...
December 15, 2022: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://read.qxmd.com/read/36425266/fred-flow-diversion-with-lvis-protection-of-large-posterior-communicating-artery-aneurysm-the-frelvis-technique
#28
JOURNAL ARTICLE
Steven B Housley, Justin M Cappuzzo, Muhammad Waqas, Andre Monteiro, Elad I Levy, Adnan H Siddiqui
Treatment of wide-necked posterior communicating artery (PCoA) aneurysms is extremely challenging, especially in fetal posterior cerebral artery (PCA) configurations. This technical video demonstrates the nuances of an innovative use of flow diversion to treat a recurrent wide-necked PCoA aneurysm. This middle-aged patient presented with recurrence of a previously ruptured, coil-embolized PCoA aneurysm. Initial attempts at Comaneci-assisted coiling were unsuccessful because the coil herniated into the middle cerebral artery (MCA)...
October 2022: Neurosurgical focus: Video
https://read.qxmd.com/read/36379363/results-of-double-low-profile-visualized-intraluminal-support-lvis-blue-stenting-for-the-treatment-of-fusiform-cerebral-aneurysms
#29
JOURNAL ARTICLE
Seung Pil Ban, O-Ki Kwon, Young Deok Kim, Yongjae Lee
BACKGROUND: The flow diversion technique is increasingly used for reconstructive endovascular treatment of fusiform cerebral aneurysms. Double stenting with the Low-profile Visualized Intraluminal Support (LVIS) Blue stent is one of the flow diversion techniques. The aim of this study was to analyze the clinical and angiographic outcomes of LVIS Blue double stenting for fusiform cerebral aneurysms. METHODS: Between March 2016 and July 2020, double LVIS Blue stenting was attempted in 25 fusiform cerebral aneurysms...
November 12, 2022: World Neurosurgery
https://read.qxmd.com/read/36377272/lvis-evo-stent-through-balloon-after-hydrocoil-embolization-of-intracranial-aneurysms-one-year-results
#30
JOURNAL ARTICLE
Pascal J Mosimann, Elif Yamac, Marta Wallocha, Ahmed Ayad, René Chapot
BACKGROUND AND PURPOSE: To evaluate the durability and safety of complete intracranial aneurysm occlusion at one year using the low-profile braided intracranial LVIS EVO stent. MATERIALS AND METHODS: This is a retrospective, monocentric, observational study of unruptured wide-necked intracranial aneurysms treated with the LVIS EVO stent-through-balloon technique after balloon-assisted hydrocoil embolization. Imaging and clinical data were assessed by two blinded independent neuroradiologists and neurologists, respectively...
November 14, 2022: Interventional Neuroradiology
https://read.qxmd.com/read/36373838/exploring-communicative-competence-in-autistic-children-who-are-minimally-verbal-the-low-verbal-investigatory-survey-for-autism-lvis
#31
JOURNAL ARTICLE
Adam Naples, Elena J Tenenbaum, Richard N Jones, Giulia Righi, Stephen J Sheinkopf, Inge-Marie Eigsti
Approximately one in three autistic children is unable to communicate with language; this state is often described as minimally verbal. Despite the tremendous clinical implications, we cannot predict whether a minimally verbal child is simply delayed (but will eventually develop spoken language) or will continue to struggle with verbal language, and might therefore benefit from learning an alternative form of communication. This is important for clinicians to know, to be able to choose the most helpful interventions, such as alternative forms of communication...
November 14, 2022: Autism: the International Journal of Research and Practice
https://read.qxmd.com/read/36120259/aneurysm-perforation-due-to-advancement-of-the-coil-delivery-wire-during-stent-assisted-embolization
#32
Takuya Osuki, Hiroyuki Ikeda, Minami Uezato, Masanori Kinosada, Masaki Chin
We report a case of intraprocedural aneurysm rupture during coil embolization caused by a coil delivery wire. A 68-year-old woman underwent stent-assisted coil embolization for an unruptured aneurysm in the internal carotid artery (ICA). A low profile visible intraluminal support device was deployed at the aneurysm neck. Coil embolization was performed with a jailing technique. After deflection of the jailed microcatheter was released, a coil was placed in the aneurysm against resistance to coil insertion. The movement of the microcatheter tip was restricted with the stent...
August 2022: Curēus
https://read.qxmd.com/read/36080954/brefine-achieving-high-quality-instance-segmentation
#33
JOURNAL ARTICLE
Jimin Yu, Xiankun Yang, Shangbo Zhou, Shougang Wang, Shangguo Hu
Instance segmentation has been developing rapidly in recent years. Mask R-CNN, a two-stage instance segmentation approach, has demonstrated exceptional performance. However, the masks are still very coarse. The downsampling operation of the backbone network and the ROIAlign layer loses much detailed information, especially from large targets. The sawtooth effect of the edge mask is caused by the lower resolution. A lesser percentage of boundary pixels leads to not-fine segmentation. In this paper, we propose a new method called Boundary Refine (BRefine) that achieves high-quality segmentation...
August 29, 2022: Sensors
https://read.qxmd.com/read/35986945/usefulness-and-problems-of-y-stent-and-t-stent-assisted-coiling-for-unruptured-cerebral-aneurysms
#34
JOURNAL ARTICLE
Takuto Kuwajima, Kiyoshi Kazekawa, Kosei Maruyama, Shinichiro Yoshida, Yoshiaki Hama, Hiroya Morita, Yuichiro Ota, Noriaki Tashiro, Fumihiro Hiraoka, Hiroto Kawano, Shigetoshi Yano, Hiroshi Aikawa, Yoshinori Go, Shinichi Yoshimura
INTRODUCTION: We are going to discuss about usefulness and problems of Y-stent and T-stent assisted coiling for unruptured cerebral aneurysms. METHODS: A retrospective review was performed to identify patients who were treated using Y-stent or T-stent assisted coiling (Y-SAC, T-SAC) for 25 unruptured cerebral aneurysms from April 2017 to September 2021. Fifteen cases were treated using Y-SAC, 10 were done using T-SAC. Only a case was treated with Low-profile Visualized Intraluminal Support (LVIS; MicroVention TRUMO, Aliso Viejo, California, USA) and Neuroform ATLAS (Striker, Kalamazoo, Michigan, USA), Others were done with two Neuroform ATLAS stents...
October 2022: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://read.qxmd.com/read/35916413/intermediate-porosity-stent-for-coil-reconstruction-of-mixed-saccular-fusiform-basilar-trunk-aneurysm
#35
JOURNAL ARTICLE
Kunal P Raygor, M Travis Caton, Daniel A Tonetti, Todd B Dubnicoff, Adib A Abla
Vertebrobasilar junction and basilar trunk aneurysms are extremely difficult to treat, with significant morbidity associated with bypass-trapping procedures. As a result, endovascular techniques including flow diversion and stent-assisted coil embolization have become the mainstay of treatment.1 - 3 Traditional flow diverters pose risk of occlusion of basilar perforator arteries while traditional stents used as adjuncts for coil-embolization often have high porosity and cannot function as flow diverters. On the other hand, the LVIS stent uniquely provides more porosity than other flow diverters,4 , 5 allowing patency of perforators while also being amenable to stent-assisted coiling...
August 2, 2022: Interventional Neuroradiology
https://read.qxmd.com/read/35873788/hemodynamic-comparison-of-treatment-strategies-for-intracranial-vertebral-artery-fusiform-aneurysms
#36
JOURNAL ARTICLE
Yeqing Jiang, Gang Lu, Liang Ge, Rong Zou, Gaohui Li, Hailin Wan, Xiaochang Leng, Jianping Xiang, Xiaolong Zhang
Objective: This study comparatively analyzed the hemodynamic changes resulting from various simulated stent-assisted embolization treatments to explore an optimal treatment strategy for intracranial vertebral artery fusiform aneurysms. An actual vertebral fusiform aneurysm case treated by large coil post-stenting (PLCS) was used as a control. Materials and Methods: A single case of an intracranial vertebral artery fusiform aneurysm underwent a preoperative and eight postoperative finite element treatment simulations: PLCS [single and dual Low-profile Visualized Intraluminal Support (LVIS)], Jailing technique (single and dual LVIS both simulated twice, Pipeline Embolization Device (PED) with or without large coils (LCs)...
2022: Frontiers in Neurology
https://read.qxmd.com/read/35734532/vertebral-artery-perforation-as-a-periprocedural-complication-of-coronary-angiography
#37
Wael Zaher, Nicolas Brassart, Michael De Cubber, Klaus-Richard Ebinger, Antonio Sorgente
Coronary angiography is a routinely performed intervention, with radial catheterization the recommended approach. We report a unique case of perforation of the right vertebral artery following coronary angiography that was successfully treated by endovascular management. ( Level of Difficulty: Advanced. ).
June 15, 2022: JACC. Case reports
https://read.qxmd.com/read/35728979/evaluation-of-stent-apposition-in-the-lvis-blue-stent-assisted-coiling-of-distal-internal-carotid-artery-aneurysms-correlation-with-clinical-and-angiographic-outcomes
#38
JOURNAL ARTICLE
Min-Yong Kwon, Young San Ko, Sae Min Kwon, Chang-Hyun Kim, Chang-Young Lee
Objective: To evaluate the stent apposition of a low-profile visualized intraluminal support (LVIS) device in distal internal carotid artery (ICA) aneurysms, examine its correlation with clinical and angiographic outcomes, and determine the predictive factors of ischemic adverse events (IAEs) related to stent-assisted coiling. Methods: We retrospectively analyzed a prospectively maintained database of 183 patients between January 2017 and February 2020. The carotid siphon from the cavernous ICA to the ICA terminus was divided into posterior, anterior, and superior bends...
June 22, 2022: Journal of Korean Neurosurgical Society
https://read.qxmd.com/read/35673657/successful-use-of-an-lvis-device-to-treat-unruptured-distal-aneurysm-of-the-superior-cerebellar-artery-at-a-vascular-bifurcation
#39
Shinichiro Yoshida, Kousei Maruyama, Takuto Kuwajima, Yoshiaki Hama, Hiroya Morita, Yuichiro Ota, Noriaki Tashiro, Fumihiro Hiraoka, Hiroto Kawano, Shigetoshi Yano, Hiroshi Aikawa, Yoshinori Go, Kiyoshi Kazekawa
Background: Aneurysms of the distal superior cerebellar artery (SCA) account for only a small proportion of all cerebral aneurysms. Reports of the use of flow diverters (FDs) started to appear in 2013. We obtained good results from placement of a low-profile visualized intraluminal support device (LVIS) to treat unruptured distal aneurysm of the SCA at a vascular bifurcation. Case Description: A 65-year-old man presented at our hospital with sudden peripheral facial nerve palsy and suspected subarachnoid hemorrhage...
2022: Surgical Neurology International
https://read.qxmd.com/read/35636381/low-profile-visualized-intraluminal-support-stent-assisted-hydrocoil-embolization-for-acutely-ruptured-wide-necked-intracranial-aneurysms-a-propensity-score-matched-cohort-study
#40
JOURNAL ARTICLE
Wei Jiang, Qiao Zuo, Gaici Xue, Xiaoxi Zhang, Haishuang Tang, Guoli Duan, Nan Lv, Lei Zhang, Zhengzhe Feng, Yina Wu, Ying Yu, Pei Liu, Rui Zhao, Qiang Li, Yibin Fang, Pengfei Yang, Kaijun Zhao, Dongwei Dai, Bo Hong, Yi Xu, Qinghai Huang, Jianmin Liu
PURPOSE: To compare the safety and efficacy of low profile visualized intraluminal support (LVIS) stent-assisted hydrogel coil embolization and LVIS stent-assisted bare platinum coil embolization for acutely ruptured wide-necked intracranial. METHODS: 89 patients who underwent LVIS stent-assisted hydrogel coil embolization (hydrogel coil group) and 145 patients who underwent LVIS stent-assisted bare platinum coil embolization (platinum coil group) were retrospectively reviewed after 1:2 propensity score matching (PSM)...
July 2022: Clinical Neurology and Neurosurgery
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