Keyword search (4,163 papers available)

"stroke" Keyword-tagged Publications:

Title Authors PubMed ID
1 Characteristics and associated weight-loss responses to the diabetes prevention program for adults with acquired brain injury: secondary analysis of two randomized control trials Quilico E; Alrawi S; Callender L; McShan E; Park S; Bennett M; Driver S; 41610975
CONCORDIA
2 Intra-individual variability in cognitive performance predicts falls in older adults with chronic stroke Dimri V; Davis JC; Boa Sorte Silva NC; Balbim GM; Eng JJ; Liu-Ambrose T; 41474479
HKAP
3 Patterns of Structural Disconnection Driving Proprioceptive Deficits in Chronic Stroke Kaeja M; Gajiyeva L; Iturria-Medina Y; Villringer A; Sehm B; Steele C; 41392885
SOH
4 BOLD Long-Range Temporal Correlations Reflect Changes in Language and Depression Across Intensive Aphasia Therapy Jäger AP; Steele CJ; Dreyer FR; Osterloh MR; Sadlon A; Nikulin V; Mohr B; Pulvermüller F; 40927858
SOH
5 The impact of lesion side on bilateral upper limb coordination after stroke Shih PC; Steele CJ; Hoepfel D; Muffel T; Villringer A; Sehm B; 38093308
PSYCHOLOGY
6 Deep learning for collateral evaluation in ischemic stroke with imbalanced data Aktar M; Reyes J; Tampieri D; Rivaz H; Xiao Y; Kersten-Oertel M; 36635594
ENCS
7 Modulation of premotor cortex response to sequence motor learning during escitalopram intake. Molloy EN; Mueller K; Beinhölzl N; Blöchl M; Piecha FA; Pampel A; Steele CJ; Scharrer U; Zheleva G; Regenthal R; Sehm B; Nikulin VV; Möller HE; Villringer A; Sacher J; 33148103
PSYCHOLOGY
8 Automatic collateral circulation scoring in ischemic stroke using 4D CT angiography with low-rank and sparse matrix decomposition. Aktar M, Tampieri D, Rivaz H, Kersten-Oertel M, Xiao Y 32662055
ENCS

 

Title:Automatic collateral circulation scoring in ischemic stroke using 4D CT angiography with low-rank and sparse matrix decomposition.
Authors:Aktar MTampieri DRivaz HKersten-Oertel MXiao Y
Link:www.ncbi.nlm.nih.gov/pubmed/32662055
DOI:10.1007/s11548-020-02216-w
Publication:International journal of computer assisted radiology and surgery
Keywords:CT angiographyCollateral supplyIschemic strokeLow-rank and sparse
PMID:32662055 Category:Int J Comput Assist Radiol Surg Date Added:2020-07-15
Dept Affiliation: ENCS
1 Department of Computer Science and Software Engineering, Concordia University, 1455 boul. De Maisonneuve O., Montreal, Québec, H3G 1M8, Canada. m_ktar@encs.concordia.ca.
2 Department of Diagnostic Radiology, Kingston Health Sciences Centre, Kingston General Hospital, Kingston, Ontario, K7L 2V7, Canada.
3 Department of Electrical and Computer Engineering, Concordia University, 1455 boul. De Maisonneuve O., Montreal, Québec, H3G 1M8, Canada.
4 Department of Computer Science and Software Engineering, Concordia University, 1455 boul. De Maisonneuve O., Montreal, Québec, H3G 1M8, Canada.
5 Robarts Research Institute, Western University, London, Ontario, N6A 5B7, Canada.

Description:

Automatic collateral circulation scoring in ischemic stroke using 4D CT angiography with low-rank and sparse matrix decomposition.



Int J Comput Assist Radiol Surg. 2020 Jul 14;:



Authors: Aktar M, Tampieri D, Rivaz H, Kersten-Oertel M, Xiao Y



Abstract

PURPOSE: Sufficient collateral blood supply is crucial for favorable outcomes with endovascular treatment. The current practice of collateral scoring relies on visual inspection and thus can suffer from inter and intra-rater inconsistency. We present a robust and automatic method to score cerebral collateral blood supply to aid ischemic stroke treatment decision making. The developed method is based on 4D dynamic CT angiography (CTA) and the ASPECTS scoring protocol.

METHODS: The proposed method, ACCESS (Automatic Collateral Circulation Evaluation in iSchemic Stroke), estimates a target patient's unfilled cerebrovasculature in contrast-enhanced CTA using the lack of contrast agent due to clotting. To do so, the fast robust matrix completion algorithm with in-face extended Frank-Wolfe optimization is applied on a cohort of healthy subjects and a target patient, to model the patient's unfilled vessels and the estimated full vasculature as sparse and low-rank components, respectively. The collateral score is computed as the ratio of the unfilled vessels to the full vasculature, mimicking existing clinical protocols.

RESULTS: ACCESS was tested with 46 stroke patients and obtained an overall accuracy of 84.78%. The optimal threshold selection was evaluated using a receiver operating characteristics curve with the leave-one-out approach, and a mean area under the curve of 85.39% was obtained.

CONCLUSION: ACCESS automates collateral scoring to mitigate the shortcomings of the standard clinical practice. It is a robust approach, which resembles how radiologists score clinical scans, and can be used to help radiologists in clinical decisions of stroke treatment.



PMID: 32662055 [PubMed - as supplied by publisher]




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