IschemaView wins expanded FDA nod for Rapid neuroimager

Medical imaging dev IschemaView said today that it won expanded FDA clearance for its Rapid neuroimaging platform intended for use in selecting patients likely to benefit from endovascular thrombectomy. With the clearance, the Menlo Park, Calif.-based company said that its Rapid CT-Perfusion and Rapid MR-Perfusion devices can now be used to aid in selecting acute stroke patients with known occlusions of the internal carotid artery or proximal middle cerebral artery for a clot removal procedure. IschemaView touted its Rapid system as the only imaging platform approved for selecting stroke patients for clot removal. “This FDA clearance confirms Rapid as the de facto standard in neuroimaging, not only for the automated analysis of brain images derived from CT and MRI, but now for the diagnosis and treatment of stroke. The new clearance will particularly benefit smaller community hospitals and the patients they serve. Because Rapid enables stroke treatment decisions that are based on intuitive and easily interpretable real-time views of brain perfusion, physicians will quickly and easily be able to determine which patients can be treated locally and which require urgent transfer to thrombectomy centers — bolstering the capabilities of smaller hospitals and therefore improving patient care,” CEO Don Listwin said in a press release. The post IschemaView wins expanded FDA nod for Rapid neuroimager appeared first on MassDevice.
Source: Mass Device - Category: Medical Devices Authors: Tags: Food & Drug Administration (FDA) Imaging Neurological Regulatory/Compliance ischemaview Source Type: news

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AbstractObjectivesChronic thromboembolic pulmonary hypertension (CTEPH) can be treated with balloon pulmonary angioplasty (BPA) in inoperable patients. Sensitive non-invasive imaging methods are missing to detect treatment response after a single BPA treatment session. Therefore, the aim of this study was to measure treatment response after a single BPA session using cardio-pulmonary MRI.Materials and methodsOverall, 29 patients with CTEPH were examined with cardio-pulmonary MRI before and 62 days after their initial BPA session. Pulmonary blood flow (PBF), first-pass bolus kinetic parameters, and biventricular mass and fu...
Source: European Radiology - Category: Radiology Source Type: research
Conclusions: Multimodality MRI screening for AIS symptoms for ET is feasible. Optimizing each center ’s protocol and the utilization of MRI with DWI only may be a time-saving alternative.Intervent Neurol 2019;8:135 –143
Source: Interventional Neurology - Category: Neurology Source Type: research
CONCLUSIONS: Compared with NCCT, perfusion CT doubles the sensitivity in detecting acute ischemic stroke. Focal hypoperfusion is independently predicted by stroke severity, cortical clinical deficits, nonlacunar supratentorial strokes, and shorter onset-to-imaging delays. A high proportion of patients with focal hypoperfusion developed infarction on subsequent imaging, as did some patients without focal hypoperfusion, indicating the complementarity of perfusion CT and MR imaging in acute ischemic stroke.
Source: American Journal of Neuroradiology - Category: Radiology Authors: Tags: ADULT BRAIN Source Type: research
Abstract Current national guidelines advocate intravenous thrombolysis to treat patients with acute ischaemic stroke presenting within 4.5 hours from symptom onset, and thrombectomy for patients with anterior circulation ischaemic stroke from large vessel occlusion presenting within 6 hours from onset. However, a substantial group of patients presents with acute ischaemic stroke beyond these time windows or has an unknown time of onset. Recent studies are set to revolutionise treatment for these patients. Using MRI diffusion/FLAIR (fluid-attenuated inversion recovery) mismatch, it is possible to identify patients ...
Source: Practical Neurology - Category: Neurology Authors: Tags: Pract Neurol Source Type: research
Editor ’s PerspectiveWhat We Already Know about This TopicWhether sublingual microcirculation reflects systemic preload remains unknownWhat This Article Tells Us That Is NewThirty-two preload dependent episodes were identified in 17 patientsEpisodes were accompanied by reduced arterial pressure and stroke volume, along with reduced sublingual microcirculationFluid administration improved microcirculation and stroke volume, but not blood pressureSublingual microcirculation might be an indicator of vascular volumeBackground Dynamic indices, such as pulse pressure variation, detect preload dependence and are used to pre...
Source: Anesthesiology - Category: Anesthesiology Source Type: research
CONCLUSION: FDCTA, reconstructed from VP-FDCT data, allows reliable detection of ICA or MCA M1 segment occlusion comparable to CTA and may provide information concerning the clot extent with sufficient image quality. PMID: 30862169 [PubMed - as supplied by publisher]
Source: Acta Radiologica - Category: Radiology Authors: Tags: Acta Radiol Source Type: research
Conclusions: CTP penumbra did not identify patients who would benefit from endovascular treatment when patients were selected with non-contrast CT ASPECTS ≥7. There is no correlation of CTP penumbra with good outcomes or mortality. Larger prospective trials are warranted to justify the use of CTP within 6 h of symptom onset.Intervent Neurol 2019;8:116 –122
Source: Interventional Neurology - Category: Neurology Source Type: research
Publication date: Available online 7 March 2019Source: The Annals of Thoracic SurgeryAuthor(s): Brent Keeling, David Tian, Heinz Jakob, Malakh Shrestha, Takuya Fujikawa, Joel S. Corvera, Marco Di Eusanio, Bradley Leshnower, Edward P. Chen, ARCH InvestigatorsAbstractBackgroundDuring elective aortic arch replacement, the addition of an aortic root procedure has an unknown effect on morbidity and mortality. The purpose of this study is to determine the effect of adding an aortic root procedure to elective aortic surgery using the ARCH international database.MethodsThe ARCH Database was queried for all elective aortic arch rep...
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Marco Bonato, Paola Bagnoli, Cinzia Centelleghe, Mike Maric, Ginevra Brocca, Sandro Mazzariol, and Bruno Cozzi The retia mirabilia are vascular nets composed of small vessels dispersed among numerous veins, allowing blood storage, regulation of flow and pressure damping effects. Here, we investigated their potential role during the diving phase of the bottlenose dolphin (Tursiops truncatus). To this effect, the whole vertebral retia mirabilia of a series of dolphins were removed during post-mortem analysis and examined to assess vessel diameters, and estimate vascular volume and flow rate. We formulated a new hemodynamic ...
Source: Journal of Experimental Biology - Category: Biology Authors: Tags: RESEARCH ARTICLE Source Type: research
Abstract BACKGROUND: During elective aortic arch replacement, the addition of an aortic root procedure has an unknown effect on morbidity and mortality. The purpose of this study is to determine the effect of adding an aortic root procedure to elective aortic surgery using the ARCH international database. METHODS: The ARCH Database was queried for all elective aortic arch replacements with and without aortic root replacement using moderate hypothermic circulatory arrest and antegrade cerebral perfusion from 2000-2015. Propensity score matching analysis was used to balance covariates, and a logistic regression...
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Ann Thorac Surg Source Type: research
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