scholarly journals Initial Clinical Trial of Robot of Endovascular Treatment with Force Feedback and Cooperating of Catheter and Guidewire

2018 ◽  
Vol 2018 ◽  
pp. 1-10
Author(s):  
Yuhua Jiang ◽  
Keyun Liu ◽  
Youxiang Li
Keyword(s):  
Clinical Trial ◽  
Clinical Practice ◽  
Endovascular Treatment ◽  
Digital Subtraction Angiography ◽  
Cerebral Angiography ◽  
Force Feedback ◽  
Digital Subtraction ◽  
Robot System ◽  
Bilateral Carotid ◽  
Blood Routine

To evaluate the feasibility and safety of the robot of endovascular treatment (RobEnt) in clinical practice, we carried out a cerebral angiography using this robot system. We evaluated the performance of application of the robot system to clinical practice through using this robotic system to perform the digital subtraction angiography for a patient who was suspected of suffering intracranial aneurysm. At the same time, through comparing the postoperative head nuclear magnetic and blood routine with the preoperative examination, we evaluated the safety of application of the robot system to clinical practice. We performed the robot system to complete the bilateral carotid artery and bilateral vertebral arteriography. The results indicate that there was no obvious abnormality in the patient’s cerebral artery. No obvious abnormality was observed in the examination of patients’ check-up, head nuclear magnetism, and blood routine after the digital subtraction angiography. From this clinical trial, it can be observed that the robot system can perform the operation of cerebral angiography. The robot system can basically complete the related observation indexes, and its accuracy, effectiveness, stability, and safety basically meet the requirements of clinical application in neurointerventional surgery.

Intracranial Aneurysms: Clinical Value of 3D Digital Subtraction Angiography in the Therapeutic Decision and Endovascular Treatment

Radiology ◽  
2001 ◽  
Vol 218 (3) ◽  
pp. 799-808 ◽  
Author(s):  
René Anxionnat ◽  
Serge Bracard ◽  
Xavier Ducrocq ◽  
Yves Trousset ◽  
Laurent Launay ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Digital Subtraction Angiography ◽  
Intracranial Aneurysms ◽  
Digital Subtraction ◽  
Therapeutic Decision ◽  
Clinical Value

scholarly journals From Clinical Trial to Clinical Practice: Assessing the External Validity of Endovascular Treatment in Acute Ischemic Stroke

2018 ◽  
Vol 06 (06) ◽  
Author(s):  
Tia Chakraborty ◽  
Curtis G Benesch ◽  
Adil Ali ◽  
James P Klaas ◽  
Waleed Brinjikji ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Ischemic Stroke ◽  
Clinical Practice ◽  
Endovascular Treatment ◽  
Acute Ischemic Stroke ◽  
External Validity

Endovascular Treatment for Posterior Circulation Stroke in Routine Clinical Practice: Results of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry

Stroke ◽  
2021 ◽  
Author(s):  
F. Anne V. Pirson ◽  
Nikki Boodt ◽  
Josje Brouwer ◽  
Agnetha A.E. Bruggeman ◽  
Sanne J. den Hartog ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Ischemic Stroke ◽  
Clinical Practice ◽  
The Netherlands ◽  
Observational Study ◽  
Endovascular Treatment ◽  
Basilar Artery ◽  
Posterior Circulation ◽  
Modified Rankin Scale ◽  
Symptomatic Intracranial Hemorrhage

BACKGROUND AND PURPOSE: The benefit of endovascular treatment (EVT) for posterior circulation stroke (PCS) remains uncertain, and little is known on treatment outcomes in clinical practice. This study evaluates outcomes of a large PCS cohort treated with EVT in clinical practice. Simultaneous to this observational study, several intervention centers participated in the BASICS trial (Basilar Artery International Cooperation Study), which tested the efficacy of EVT for basilar artery occlusion in a randomized setting. We additionally compared characteristics and outcomes of patients treated outside BASICS in trial centers to those from nontrial centers. Methods: We included patients with PCS from the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands Registry: a prospective, multicenter, observational study of patients who underwent EVT in the Netherlands between 2014 and 2018. Primary outcome was a score of 0 to 3 on the modified Rankin Scale at 90 days. Secondary outcomes included reperfusion status and symptomatic intracranial hemorrhage. For outcome comparison between patients treated in trial versus nontrial centers, we used ordinal logistic regression analysis. Results: We included 264 patients of whom 135 (51%) had received intravenous thrombolysis. The basilar artery was most often involved (77%). Favorable outcome (modified Rankin Scale score 0–3) was observed in 115/252 (46%) patients, and 109/252 (43%) patients died. Successful reperfusion was achieved in 178/238 (75%), and symptomatic intracranial hemorrhage occurred in 9/264 (3%). The 154 nontrial patients receiving EVT in BASICS trial centers had similar characteristics and outcomes as the 110 patients treated in nontrial centers (modified Rankin Scale adjusted cOR: 0.77 [95% CI, 0.5–1.2]). Conclusions: Our study shows that high rates of favorable clinical outcome and successful reperfusion can be achieved with EVT for PCS, despite high mortality. Characteristics and outcomes of patients treated in trial versus nontrial centers were similar indicating that our cohort is representative of clinical practice in the Netherlands. Randomized studies using modern treatment approaches are needed for further insight in the benefit of EVT for PCS.

scholarly journals Three-Dimensional Digital Subtraction Angiography for Endovascular Treatment of Direct Carotid-Cavernous Fistula

2010 ◽  
Vol 50 (5) ◽  
pp. 404-406 ◽  
Author(s):  
Shinya KOHYAMA ◽  
Shoichiro ISHIHARA ◽  
Fumitaka YAMANE ◽  
Ryuzaburo KANAZAWA ◽  
Hideaki ISHIHARA ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Digital Subtraction Angiography ◽  
Three Dimensional ◽  
Digital Subtraction ◽  
Carotid Cavernous Fistula ◽  
Cavernous Fistula ◽  
Direct Carotid Cavernous Fistula

scholarly journals Feasibility of ultra-low radiation dose digital subtraction angiography: Preliminary study in a simplified cerebral angiography phantom

2019 ◽  
Vol 25 (5) ◽  
pp. 589-595 ◽  
Author(s):  
Jun Young Maeng ◽  
Yunsun Song ◽  
Yu Sub Sung ◽  
Tae-Il Kim ◽  
Deok Hee Lee ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Digital Subtraction Angiography ◽  
Cerebral Angiography ◽  
Signal To Noise Ratio ◽  
Standard Protocol ◽  
Digital Subtraction ◽  
Image Sharpness ◽  
Low Radiation Dose ◽  
Entrance Dose ◽  
Noise Ratio

Introduction The objective of this article is to evaluate the feasibility of cerebral digital subtraction angiography (DSA) using ultra-low radiation dose settings in a simplified cerebral angiography phantom. Materials and methods We created a silicone phantom capable of producing a simplified cerebral DSA. A total of 18 DSA sets were obtained with gradual six-step reduction of the detector entrance dose (DED) from 1.82 to 0.08 μGy per frame, while standard, postprocessing algorithm (PPA) and copper filter (0.3 mm) with PPA (CwP) algorithm reconstruction protocols were applied. We quantitatively compared their signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) and qualitatively analyzed the images' qualities in terms of image sharpness, contrast, and noise as investigated by five observers. Results The SNR and CNR, which decreased with lowering of the DED in the standard protocol group, were significantly compensated by using the PPA. The values were approximately double in the PPA (11.5 ± 2.9) and CwP (11.0 ± 2.5) groups compared with the standard (5.4 ± 1.1) group in the DED of 0.24 μGy per frame as well as in the other values. The total scores of the observers according to the protocols showed a tendency to decrease as the DED lowered. On average, the PPA (96.3 ± 34.6) and CwP (91.3 ± 29.9) groups yielded higher results than the standard protocol (83.7 ± 46.7). Conclusion Given that the current DED ranges from 1.82 to 3.60 μGy per frame for routine cerebral DSA, our results indicate that DED can be decreased to 15%–30% of the current dose level in vessels 2–4 mm in diameter if image-improvement algorithms are applied.

scholarly journals Transient Cortical Blindness after Digital Subtraction Angiography of Cerebral Vessels

2017 ◽  
Vol 14 (2) ◽  
pp. 36-38
Author(s):  
Shreeya Parajuli ◽  
Pravesh Rajbhandari ◽  
Sameer Acharya ◽  
Basant Pant
Keyword(s):  
Carotid Artery ◽  
Digital Subtraction Angiography ◽  
Cerebral Angiography ◽  
Carotid Artery Stenosis ◽  
Cortical Blindness ◽  
Artery Stenosis ◽  
Cerebral Vessels ◽  
Digital Subtraction ◽  
Transient Cortical Blindness ◽  
Rule Out

Transient blindness following cerebral angiography is a rare but known entity. We report a case of transient cortical blindness after cerebral angiography. The patient presented with is chemic stroke and the angiography was performed to rule out carotid artery stenosis. The patient, however, gradually regained his vision over a period of 3 days. This article is to understand one of the most unusual complications that may occur while performing angiography Nepal Journal of Neuroscience, Vol. 14, No. 2,  2017 Page: 36-38

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