Artifacts

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Journal Papers

2021

Cummings, Brandon C; Ansari, Sardar; Motyka, Jonathan R; Wang, Guan; Medlin, Richard P; Kronick, Steven L; Singh, Karandeep; Park, Pauline K; Napolitano, Lena M; Dickson, Robert P; Mathis, Michael R; Sjoding, Michael W; Admon, Andrew J; Ward, Kevin R; Gillies, Christopher E

Validation and comparison of PICTURE analytic and Epic Deterioration Index for COVID-19 Journal Article

IEEE Journal of Biomedical and Health Informatics (under review), 2021.

Sjoding, Michael W; Taylor, Daniel; Motyka, Jonathan; Lee, Elizabeth; Co, Ivan; Claar, Dru; McSparron, Jakob I; Ansari, Sardar; Kerlin, Meeta Prasad; Reilly, John P; Shashaty, Michael G S; Anderson, Brian J; Jones, Tiffanie K; Drebin, Harrison M; Ittner, Caroline A G; Meyer, Nuala J; Iwashyna, Theodore J; Ward, Kevin R; Gillies, Christopher E

Deep Learning to Detect Findings of the Acute Respiratory Distress Syndrome on Chest Radiographs: A Retrospective Study with External Validation Journal Article

Lancet Digital health, 2021.

2020

Ansari, Sardar; Golbus, Jessica R; Tiba, Mohamad H; McCracken, Brendan; Wang, Lu; Aaronson, Keith D; Ward, Kevin R; Najarian, Kayvan; Oldham, Kenn R

Detection of Low Cardiac Index using a Polyvinylidene Fluoride-Based Wearable Ring and Convolutional Neural Networks Journal Article

IEEE Sensors Journal, pp. 1-1, 2020.

Gillies, Christopher E; Taylor, Daniel F; Cummings, Brandon C; Ansari, Sardar; Islim, Fadi; Kronick, Steven L; Medlin, Richard P; Ward, Kevin R

Demonstrating the consequences of learning missingness patterns in early warning systems for preventative health care: A novel simulation and solution Journal Article

Journal of Biomedical Informatics, 110 , pp. 103528, 2020, ISSN: 1532-0464.

2019

Sabeti, Elyas; Gryak, Jonathan; Derksen, Harm; Biwer, Craig; Ansari, Sardar; Isenstein, Howard; Kratz, Anna; Najarian, Kayvan

Learning Using Concave and Convex Kernels: Applications in Predicting Quality of Sleep and Level of Fatigue in Fibromyalgia Journal Article

Entropy, 21 (5), pp. 442, 2019.

2018

Zare, Fatima; Ansari, Sardar; Najarian, Kayvan; Nabavi, Sheida

Preprocessing sequence coverage data for precise detection of copy number variations Journal Article

IEEE/ACM Transactions on Computational Biology and Bioinformatics, 2018.

Coute, Ryan A; Shields, Theresa A; Cranford, James A; Ansari, Sardar; Abir, Mahshid; Tiba, Hakam M; Dunne, Robert; O'Neil, Brian; Swor, Robert; Neumar, Robert W; others,

Intrastate Variation in Treatment and Outcomes of Out-of-Hospital Cardiac Arrest Journal Article

Prehospital Emergency Care, 22 (6), pp. 743–752, 2018.

2017

Ansari, Sardar; Yoon, Soovin; Albert, Laura A

An Approximate Hypercube Model for Public Service Systems with Co-Located Servers and Multiple Response Journal Article

Transportation Research Part E: Logistics and Transportation Review, 103 , pp. 143-157, 2017, ISSN: 1366-5545.

Tiba, Mohamad H; McCracken, Brendan M; Ansari, Sardar; Belle, Ashwin; Cummings, Brandon C; Rajajee, Venkatakrishna; Patil, Parag G; Alam, Hasan B; Ward, Kevin R

Novel Noninvasive Method of Cerebrovascular Blood Volume Assessment Using Brain Bioimpedance Journal Article

Journal of Neurotrauma, 34 (22), pp. 3089-3096, 2017.

Wang, Lu; Ansari, Sardar; Slavin, Daniel; Ward, Kevin; Najarian, Kayvan; Oldham, Kenn R

Non-Invasive Vascular Resistance Monitoring with a Piezoelectric Sensor and Photoplethysmogram Journal Article

Sensors and Actuators A: Physical, 263 , pp. 198–208, 2017.

Ghanbari, Hamid; Ansari, Sardar; Ghannam, Michael; Lathkar-Pradhan, Sangeeta; Kratz, Anna; Oral, Hakan; Najarian, Kayvan; Clauw, Daniel; Nallamothu, Brahmajee

Feasibility and Usability of a Mobile Application to Assess Symptoms and Affect in Patients with Atrial Fibrillation: A Pilot Study Journal Article

Hypertension, 10 (2), pp. 9-12, 2017.

Ansari, Sardar; Farzaneh, Negar; Duda, Marlena; Horan, Kelsey; Andersson, Hedvig B; Goldberger, Zachary D; Nallamothu, Brahmajee K; Najarian, Kayvan

A Review of Automated Methods for Detection of Myocardial Ischemia and Infarction Using Electrocardiogram and Electronic Health Records Journal Article

IEEE Reviews in Biomedical Engineering, 10 , pp. 264-298, 2017, ISSN: 1937-3333, 1941-1189.

2016

Ghanbari, Hamid; Jani, Ronak; Hussain-Amin, Atheer; Al-Assad, Wassim; Huether, Elizabeth; Ansari, Sardar; Jongnarangsin, Krit; Crawford, Thomas; Latchamsetty, Rakesh; Bogun, Frank; Morady, Fred; Oral, Hakan; Chugh, Aman

Role of Adenosine after Antral Pulmonary Vein Isolation of Paroxysmal Atrial Fibrillation: A Randomized Controlled Trial Journal Article

Heart Rhythm, 13 (2), pp. 407-415, 2016, ISSN: 15475271.

Ansari, Sardar; Belle, Ashwin; Ghanbari, Hamid; Salamango, Mark; Najarian, Kayvan

Suppression of False Arrhythmia Alarms in the ICU: A Machine Learning Approach Journal Article

Physiological Measurement, 37 (8), pp. 1186-1203, 2016, ISSN: 0967-3334, 1361-6579.

Ansari, Sardar; Ward, Kevin; Najarian, Kayvan

Motion Artifact Suppression in Impedance Pneumography Signal for Portable Monitoring of Respiration: An Adaptive Approach Journal Article

IEEE Journal of Biomedical and Health Informatics, pp. 387-398, 2016, ISSN: 2168-2194, 2168-2208, (ulCover of the IEEE Journal of Biomedical and Health Informatics, volume 21, no 2).

Belle, Ashwin; Ansari, Sardar; Spadafore, Maxwell; Convertino, Victor A; Ward, Kevin R; Derksen, Harm; Najarian, Kayvan

A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation Journal Article

PLOS ONE, 11 (2), pp. e0148544, 2016, ISSN: 1932-6203.

2015

Ansari, Sardar; McLay, Laura Albert; Mayorga, Maria E

A Maximum Expected Covering Problem for District Design Journal Article

Transportation Science, 51 (1), pp. 376-390, 2015, ISSN: 0041-1655, 1526-5447.

Ansari, Sardar; Ward, Kevin; Najarian, Kayvan

Epsilon-Tube Filtering: Reduction of High-Amplitude Motion Artifacts from Impedance Plethysmography Signal. Journal Article

IEEE Journal of Biomedical and Health Informatics, 19 (2), pp. 406-417, 2015, ISSN: 2168-2194, 2168-2208.

2013

Aghazadeh, Babak Seyed; Ansari, Sardar; Pidaparti, Ramana; Najarian, Kayvan

Non-Invasive Estimation of Intracranial Pressure in Traumatic Brain Injury (TBI) Using Fully-Anisotropic Morlet Wavelet Transform and Support Vector Regression Journal Article

Biomedical Engineering Letters, 3 (3), pp. 190-197, 2013, ISSN: 2093-9868, 2093-985X.

Full-length Peer-Reviewed Conference Papers

2020

Ansari, Sardar; Gillies, Christopher E; Cummings, Brandon; Motyka, Jonathan; Wang, Guan; Ward, Kevin R; Ghanbari, Hamid

Classification of 12-Lead Electrocardiograms Using Residual Neural Networks and Transfer Learning Inproceedings

2020 Computing in Cardiology, pp. 1-4, 2020.

2019

Wang, Lu; Ansari, Sardar; Najarian, Kayvan; Ward, Kevin R; Oldham, Kenn R

Decompensation Prediction in Hemodialysis by a Feedback Model as Identified by Miniature Wearable Sensors Inproceedings

2019 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), pp. 133–138, IEEE 2019.

2018

Zare, Fatima; Ansari, Sardar; Najarian, Kayvan; Nabavi, Sheida

Copy number variation detection using partial alignment information Inproceedings

2018 IEEE International Conference on Bioinformatics and Biomedicine (BIBM), pp. 2435–2441, IEEE 2018.

Wang, Lu; Ansari, Sardar; Ward, Kevin R; Najarian, Kayvan; Oldham, Kenn R

Identification of Compensatory Arterial Dynamics in Swine Using a Non-Invasive Sensor for Local Vascular Resistance Inproceedings

ASME 2018 Dynamic Systems and Control Conference, pp. V001T14A002–V001T14A002, American Society of Mechanical Engineers 2018.

Nguyen, An; Ansari, Sardar; Hooshmand, Mohsen; Lin, Kaiwen; Ghanbari, Hamid; Gryak, Jonathan; Najarian, Kayvan

Comparative Study on Heart Rate Variability Analysis for Atrial Fibrillation Detection in Short Single-Lead ECG Recordings Inproceedings

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 526–529, IEEE 2018.

Ansari, Sardar; Gryak, Jonathan; Najarian, Kayvan

Noise Detection in Electrocardiography Signal for Robust Heart Rate Variability Analysis: A Deep Learning Approach Inproceedings

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), pp. 5632–5635, IEEE 2018.

2017

Wang, Lu; Ansari, Sardar; Najarian, Kayvan; Ward, Kevin R; Oldham, Kenn R

Estimation of Peripheral Artery Radius Using Non-Invasive Sensors and Kalman Filtering of Local Dynamics Inproceedings

American Control Conference (ACC), 2017, pp. 807–812, IEEE, 2017.

Ansari, Sardar; Molaei, Somayeh; Oldham, Kenn; Heung, Michael; Ward, Kevin R; Najarian, Kayvan

An Extended Kalman Filter with Inequality Constraints for Real-Time Detection of Intradialytic Hypotension Inproceedings

Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE, pp. 2227–2230, IEEE, 2017.

Zare, Fatima; Ansari, Sardar; Najarian, Kayvan; Nabavi, Sheida

Bias and Noise Cancellation for Robust Copy Number Variation Detection Inproceedings

Proceedings of the 8th ACM International Conference on Bioinformatics, Computational Biology, and Health Informatics, pp. 591–591, ACM, 2017.

Zare, Fatima; Ansari, Sardar; Najarian, Kayvan; Nabavi, Sheida

Noise Cancellation for Robust Copy Number Variation Detection Using next Generation Sequencing Data Inproceedings

Bioinformatics and Biomedicine (BIBM), 2017 IEEE International Conference On, pp. 230–236, IEEE, 2017.

2016

Ansari, Sardar; Farzaneh, Negar; Heung, Michael; Oldham, Kenn; Derksen, Harm; Ward, Kevin R; Najarian, Kayvan

Real-Time Detection of Intradialytic Hypotension Using a Novel Polyvinylidene Fluoride Based Sensor Inproceedings

Biomedical and Health Informatics (BHI), 2016 IEEE-EMBS International Conference On, pp. 493-496, IEEE, Las Vegas, NV, 2016, ISBN: 978-1-5090-2455-1.

2015

Ansari, Sardar; Belle, Ashwin; Najarian, Kayvan

Multi-Modal Integrated Approach towards Reducing False Arrhythmia Alarms during Continuous Patient Monitoring: The Physionet Challenge 2015 Inproceedings

Computing in Cardiology Conference (CinC), 2015, pp. 1181-1184, IEEE, Nice, France, 2015, ISBN: 978-1-5090-0685-4 978-1-5090-0684-7.

2011

Ansari, Sardar; Belle, A; Hobson, Rosalyn; Ward, Kevin; Najarian, K

Reduction of Periodic Motion Artifacts from Impedance Plethysmography Inproceedings

Bioinformatics and Biomedicine Workshops (BIBMW), 2011 IEEE International Conference On, pp. 540-547, IEEE, Atlanta, GA, 2011, ISBN: 978-1-4577-1613-3 978-1-4577-1612-6.

2010

Ansari, Sardar; Najarian, Kayvan; Ward, Kevin

Adaptive Set-Membership Normalized Least Mean Squares: An Adaptive Filter for the Systems with Bounded Noise Inproceedings

Bioinformatics and Biomedicine Workshops (BIBMW), 2010 IEEE International Conference On, pp. 179-184, IEEE, Hong Kong, China, 2010, ISBN: 978-1-4244-8303-7.

Belle, Ashwin; Ji, Soo Yeon; Ansari, Sardar; Hakimzadeh, Roya; Ward, Kevin; Najarian, Kayvan

Frustration Detection with Electrocardiograph Signal Using Wavelet Transform Inproceedings

Biosciences, 2010 International Conference On, pp. 91-94, IEEE, Cancun, Mexico, 2010, ISBN: 978-1-4244-5929-2.

Ansari, Sardar; Belle, Ashwin; Najarian, Kayvan; Ward, Kevin

Impedance Plethysmography on the Arms: Respiration Monitoring Inproceedings

Bioinformatics and Biomedicine Workshops (BIBMW), 2010 IEEE International Conference On, pp. 471-472, IEEE, Hong Kong, China, 2010, ISBN: 978-1-4244-8303-7.

2009

Ansari, Sardar; Najarian, Kayvan; Ward, Kevin; Tiba, Mohamad Hakam

Extraction of Respiratory Rate from Impedance Signal Measured on Arm: A Portable Respiratory Rate Measurement Device Inproceedings

Bioinformatics and Biomedicine (BIBM), 2009 IEEE International Conference On, pp. 197-202, IEEE, Washington DC, 2009, ISBN: 978-0-7695-3885-3.

Abstract and Poster Presentations

2018

Ansari, Sardar; Golbus, Jessica R; Aaronson, Keith D; Nallamothu, Brahmajee K; Oldham, Kenn R; Ward, Kevin R; Gryak, Jonathan; Najarian, Kayvan

Stratification of Cardiac Index Using a Novel Non-Invasive Ring and Deep Learning Journal Article

Circulation, 138 (Suppl_1), pp. A16415–A16415, 2018.

2017

Kratz, A; Ansari, Sardar; Duda, M; Chen, X; Murphy, J; Williams, D; Najarian, K; Clauw, D

Feasibility of the E4 Wristband to Assess Sleep in Adults with and without Fibromyalgia Journal Article

The Journal of Pain, 18 (4), pp. S54-S54, 2017.

Kratz, A; Ansari, Sardar; Duda, M; Chen, X; Murphy, J; Bay, E; Williams, D; Clauw, D; Najarian, K

Ambulatory Heart Rate Variability Identifies Differences in Sleep between People with Fibromyalgia and Matched Controls Journal Article

The Journal of Pain, 18 (4), pp. S54-S54, 2017.

2016

Ansari, Sardar; Tiba, Mohamad Hakam; Oldham, Kenn; Ward, Kevin R; Najarian, Kayvan

Noninvasive Peripheral Vascular Resistance Measured by a Polyvinylidene Fluoride Sensor Identifies Patterns of Oxygen Debt Repayment During Resuscitation After Hemorrhage Journal Article

Circulation, 134 (Suppl 1), pp. A19409-A19409, 2016, (ulreceived the Young Investigator Award from the American Heart Association, Cardiac and Trauma Resuscitation Science).

Coute, Ryan A; Shields, Theresa A; Cranford, James A; Ansari, Sardar; Tiba, Hakam M; Neumar, Robert W

Intrastate Variation in Treatment and Outcome Measures for Out-of-Hospital Cardiac Arrest Journal Article

Circulation, 134 , pp. A17194-A17194, 2016.

2015

Ansari, Sardar; Slavin, Daniel; Tiba, Mohamad H; Derksen, Harm; Oldham, Kenn; Ward, Kevin; Najarian, Kayvan

A Novel Portable Polyvinylidene Fluoride Based Sensor for Detection of Hemorrhage Journal Article

Circulation, 132 (Suppl 3), pp. A18257–A18257, 2015, ISSN: 0009-7322, (ulreceived the Best Abstract Award from the American Heart Association, Cardiac and Trauma Resuscitation Science).

2012

Ansari, Sardar

Integrated Models for Locating and Dispatching Ambulances Miscellaneous

Institute for Operations Research and the Management Sciences (INFORMS) Annual Meeting, 2012.

Ansari, Sardar

A Mixed Integer Programming Model for Locating and Dispatching Ambulances to Emergency Medical Patients Miscellaneous

Southern Regional Council on Statistics (SRCOS), 2012.

Non-Peer Reviewed Publication

2018

Vornhagen, Jay; Ansari, Sardar; Ahmed, Aqila

Secondary Mentors Boost the Postdoctoral Experience Journal Article

POSTDOCket, 16 (8), 2018.

Grants

Patents

2020

Najarian, Kayvan; Oldham, Kenn R; Slavin, Daniel; Belle, Ashwin; Ward, Kevin R; Ansari, Sardar; Daniels, Rodney C

Miniature piezoelectric cardiovascular monitoring system Patent

US10610113B2, WO2015153569A1, 2020, (ZSCC: NoCitationData[s0]).

2019

Ansari, Sardar; Ward, Kevin R; Najarian, Kayvan

Epsilon-tube filter for blunt noise removal Patent

US10349896B2, WO2015112266A2, 2019, (ZSCC: NoCitationData[s0]).

2018

Ansari, Sardar; Najarian, Kayvan; Ward, Kevin R

Adaptive epsilon-tube filter for blunt noise removal Patent

US10034638B2, WO2016160174A1, 2018, (ZSCC: NoCitationData[s0]).

Ward, Kevin R; Tiba, Mohamad Hakam; Belle, Ashwin; Ansari, Sardar; Patil, Parag G

Ocular impedance-based system for brain health monitoring Patent

WO2018213456A1, EP3624890A1, 2018, (ZSCC: NoCitationData[s0]).

0000

Ward, Kevin R; Ansari, Sardar; Wang, Lu; Najarian, Kayvan; Oldham, Kenn R

Estimation of peripheral vascular resistance using a miniature piezoelectric sensor Patent Forthcoming

US20200054221A1 (pending), Forthcoming, (ZSCC: NoCitationData[s0]).

Ward, Kevin R; Oldham, Kenn R; Wang, Lu; Ansari, Sardar

Multi-Sensor Intracranial Pressure Monitor For Cerebral Hemodynamic Monitoring Patent Forthcoming

US20200260975A1 (pending), Forthcoming, (ZSCC: NoCitationData[s0]).

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