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Specialty: Radiology
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Total 32 results found since Jan 2013.

Efficacy and safety of thrombectomy for acute ischaemic stroke in patients with pre-stroke mRS scores of 2-3: Real-world evaluation from an open-label, prospective, multicentre, observational study
CONCLUSION: Intravenous t-PA and especially thrombectomy were safe and effective for the population with pre-stroke disabilities, particularly for patients with low NIHSS scores.PMID:37461387 | DOI:10.1177/15910199231185637
Source: Interventional Neuroradiology - July 18, 2023 Category: Radiology Authors: Shigeta Miyake Taisuke Akimoto Yasunobu Nakai Yu Amano Ryoo Yamamoto Kazumitsu Amari Tetsuya Yamamoto Masataka Takeuchi Masafumi Morimoto Yoshifumi Tsuboi Shogo Kaku Junichi Ayabe Takekazu Akiyama Daisuke Yamamoto Hidemichi Ito Hidetaka Onodera Satoshi Ta Source Type: research

Standards of practice in acute ischemic stroke intervention: International recommendations: This article was first published in JNIS. Cite this article as: Pierot L, Jayaraman MV, Szikora I, et  al. Standards of practice in acute ischemic stroke intervention: international recommendations. Journal of NeuroInterventional Surgery. Published Online First: 28 August 2018. doi: 10.1136/neurintsurg-2018-014287.
This article was first published in JNIS. Cite this article as: Pierot L, Jayaraman MV, Szikora I, et al. Standards of practice in acute ischemic stroke intervention: international recommendations. Journal of NeuroInterventional Surgery. Published Online First: 28 August 2018. doi: 10.1136/neurintsurg-2018-014287. Interv Neuroradiol. 2018 Oct 23;:1591019918800457 Authors: Pierot L, Jayaraman MV, Szikora I, Hirsch JA, Baxter B, Miyachi S, Mahadevan J, Chong W, Mitchell PJ, Coulthard A, Rowley HA, Sanelli PC, Tampieri D, Brouwer PA, Fiehler J, Kocer N, Vilela P, Rovira A, Fischer U, Caso V, van der Worp B, Saka...
Source: Interventional Neuroradiology - October 27, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Development of a deep learning model to identify hyperdense MCA sign in patients with acute ischemic stroke
ConclusionThe deep learning method appears potentially beneficial for identifying HMCAS on non-contrast CT in patients with acute ischemic stroke.
Source: Japanese Journal of Radiology - October 30, 2019 Category: Radiology Source Type: research

Characteristics of cerebral perfusion and diffusion associated with crossed cerebellar diaschisis after acute ischemic stroke
ConclusionThe occurrence and severity of CCD are related to the degree of low supratentorial perfusion and the decrease in the ADC value of infarct focus.
Source: Japanese Journal of Radiology - November 12, 2019 Category: Radiology Source Type: research

Peri-thrombus vascular hyperintensity sign: detection of intracranial thrombus location and length in acute ischemic stroke
ConclusionThe PVHS on 3D BB contrast-enhanced MRI is a highly specific tool for evaluating the location and length of a thrombus in AIS patients.
Source: Japanese Journal of Radiology - March 6, 2020 Category: Radiology Source Type: research

Direct aspiration thrombectomy experience with the SOFIA 6F catheter in acute ischemic stroke
ConclusionIn the majority of our cases, the SOFIA 6F catheter provided effective and rapid recanalization with aspiration thrombectomy.
Source: Japanese Journal of Radiology - January 19, 2021 Category: Radiology Source Type: research

Simple aspiration with balloon catheter technique (simple ABC technique) against proximal internal carotid artery occlusion in cases of cardiogenic cerebral embolism.
Conclusion The simple ABC technique is useful to deal with a large amount of thrombus, shortens procedure time, enables less invasive thrombectomy, and can shift immediately to subsequent procedures such as delivering a stent retriever or ADAPT. PMID: 29378450 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - February 1, 2018 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Effectiveness of Low-Dose Intravenous Tissue Plasminogen Activator before Stent Retriever or Aspiration Mechanical Thrombectomy
ConclusionsThis single-center retrospective study shows that lower-dose intravenous thrombolysis improves the outcomes of mechanical thrombectomy for Japanese patients with acute anterior-circulation stroke treated within 4.5 hours of onset.
Source: Journal of Vascular and Interventional Radiology - February 3, 2019 Category: Radiology Source Type: research

Safety of carotid artery stenting for elderly patients with cervical carotid artery stenosis.
CONCLUSIONS: Carotid artery stenting using dual protection and blood aspiration is equally safe for younger and elderly patients. PMID: 31969075 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - January 25, 2020 Category: Radiology Tags: Interv Neuroradiol Source Type: research

Low- and moderate-dose non-cancer effects of ionizing radiation in directly exposed individuals, especially circulatory and ocular diseases: a review of the epidemiology.
CONCLUSIONS: We document statistically significant excess risk of the major types of circulatory disease, specifically ischemic heart disease and stroke, in moderate- or low-dose exposed groups, with some not altogether consistent evidence suggesting dose response non-linearity, particularly for stroke. However, the patterns of risk reported are not straightforward. We also document evidence of excess risks at lower doses/dose-rates of posterior subcapsular and cortical cataract in the Chernobyl liquidators, US Radiologic Technologists and Russian Mayak nuclear workers, with fundamentally linear dose response. Nuclear cata...
Source: International Journal of Radiation Biology - January 22, 2021 Category: Radiology Tags: Int J Radiat Biol Source Type: research

Prominent hypointense vessel on susceptibility-weighted images accompanying hyperacute and acute large infarction
ConclusionPHV on SWI was more prominent at the portions with the large and mixed infarctions. PHV was observed both in hyperacute and acute infarction.
Source: Japanese Journal of Radiology - March 20, 2021 Category: Radiology Source Type: research

Diagnostic reference levels and median doses for common clinical indications of CT: findings from an international registry
ConclusionsDRLs for CTDIvol and DLP for EUCLID clinical indications from diverse organizations were established and can contribute to dose optimization. These values were usually significantly higher in the US than in Europe.Key Points•Registry data were used to create benchmarks for 10 common indications for CT identified by the European Society of Radiology.•Observed US radiation doses were higher than European for 9 of 10 indications (except chronic sinusitis).•The presented diagnostic reference levels and median doses highlight potentially unnecessary variation in radiation dose.
Source: European Radiology - October 13, 2021 Category: Radiology Source Type: research

Dual energy computed tomography for the head
AbstractDual energy CT (DECT) is a promising technology that provides better diagnostic accuracy in several brain diseases. DECT can generate various types of CT images from a single acquisition data set at high kV and low kV based on material decomposition algorithms. The two-material decomposition algorithm can separate bone/calcification from iodine accurately. The three-material decomposition algorithm can generate a virtual non-contrast image, which helps to identify conditions such as brain hemorrhage. A virtual monochromatic image has the potential to eliminate metal artifacts by reducing beam-hardening effects. DEC...
Source: Japanese Journal of Radiology - November 9, 2017 Category: Radiology Source Type: research

Can AI help in the fight against gadolinium deposition?
What if gadolinium-based contrast agents could be used at just 10% of current...Read more on AuntMinnie.comRelated Reading: How can radiologists prepare for future of AI? Study finds gadolinium leaks into eyes of stroke patients Artificial intelligence guides lower PET tracer dose FDA issues directive on GBCA labeling, safety research Japan requires changes in GBCA labeling information
Source: AuntMinnie.com Headlines - February 21, 2018 Category: Radiology Source Type: news