Search Results - "Lakshmanan, Karthik"

A flexible MRI coil based on a cable conductor and applied to knee imaging by Wang, Bili, Siddiq, Syed S., Walczyk, Jerzy, Bruno, Mary, Khodarahmi, Iman, Brinkmann, Inge M., Rehner, Robert, Lakshmanan, Karthik, Fritz, Jan, Brown, Ryan

“…Flexible radiofrequency coils for magnetic resonance imaging (MRI) have garnered attention in research and industrial communities because they provide improved…”
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Extracting Low-Dimensional Latent Structure from Time Series in the Presence of Delays by Lakshmanan, Karthik C, Sadtler, Patrick T, Tyler-Kabara, Elizabeth C, Batista, Aaron P, Yu, Byron M

“…Noisy, high-dimensional time series observations can often be described by a set of low-dimensional latent variables. Commonly used methods to extract these…”
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Azathioprine induced pancytopenia with pneumonia and sepsis: A rare and potentially fatal occurence with dermatologic use by Khurana, Ananta, Kumari, Ritu, Lakshmanan, Karthik, Jain, Piyush, Meena, Sumitra

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A dual‐tuned 17O/1H head array for direct brain oximetry at 3 Tesla by Lakshmanan, Karthik, Dehkharghani, Seena, Madelin, Guillaume, Brown, Ryan

“…Purpose To design and build a dual‐tuned 17O/1H coil for direct brain oximetry at 3T. Methods A dual‐tuned 17O/1H coil comprising 2 degenerate mode birdcage…”
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Three-row MRI receive array with remote circuitry to preserve radiation transparency by Lakshmanan, Karthik, Wang, Bili, Walczyk, Jerzy, Collins, Christopher M, Brown, Ryan

“…Up to this point, 1.5 T linac-compatible coil array layouts have been restricted to one or two rows of coils because of the desire to place radiation-opaque…”
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Rapid Steroid Withdrawal Unveiling Tender Nodules: A Pediatric Panniculitis Puzzle and its Management by Lakshmanan, Karthik, Khandpur, Sujay, Garg, Shivangi, Bagga, Arvind, Sinha, Aditi

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High-performance radiofrequency coils for (23)Na MRI: brain and musculoskeletal applications by Wiggins, Graham C, Brown, Ryan, Lakshmanan, Karthik

“…(23)Na RF coil design for brain and MSK applications presents a number of challenges, including poor coil loading for arrays of small coils and SNR penalties…”
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A dual-tuned 17 O/ 1 H head array for direct brain oximetry at 3 Tesla by Lakshmanan, Karthik, Dehkharghani, Seena, Madelin, Guillaume, Brown, Ryan

“…To design and build a dual-tuned O/ H coil for direct brain oximetry at 3T. A dual-tuned O/ H coil comprising 2 degenerate mode birdcage coils was constructed…”
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A nested phosphorus and proton coil array for brain magnetic resonance imaging and spectroscopy by Brown, Ryan, Lakshmanan, Karthik, Madelin, Guillaume, Parasoglou, Prodromos

“…A dual-nuclei radiofrequency coil array was constructed for phosphorus and proton magnetic resonance imaging and spectroscopy of the human brain at 7T. An…”
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Improved whole‐brain SNR with an integrated high‐permittivity material in a head array at 7T by Lakshmanan, Karthik, Carluccio, Giuseppe, Walczyk, Jerzy, Brown, Ryan, Rupprecht, Sebastian, Yang, Qing X., Lanagan, Michael T., Collins, Christopher M.

“…Purpose To demonstrate that strategic use of materials with high electric permittivity along with integrated head‐sized coil arrays can improve SNR in the…”
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A radially interleaved sodium and proton coil array for brain MRI at 7 T by Wang, Bili, Zhang, Bei, Yu, Zidan, Ianniello, Carlotta, Lakshmanan, Karthik, Paska, Jan, Madelin, Guillaume, Cloos, Martijn, Brown, Ryan

“…The objective of the current study was to design and build a dual‐tuned coil array for simultaneous 23Na/1H MRI of the human brain at 7 T. Quality factor,…”
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MR electrical properties mapping using vision transformers and canny edge detectors by Giannakopoulos, Ilias I, Carluccio, Giuseppe, Keerthivasan, Mahesh B, Koerzdoerfer, Gregor, Lakshmanan, Karthik, De Moura, Hector L, Cruz Serrallés, José E, Lattanzi, Riccardo

“…We developed a 3D vision transformer-based neural network to reconstruct electrical properties (EP) from magnetic resonance measurements. Our network uses the…”
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Transverse slot antennas for high field MRI by Alon, Leeor, Lattanzi, Riccardo, Lakshmanan, Karthik, Brown, Ryan, Deniz, Cem M., Sodickson, Daniel K., Collins, Christopher M.

“…Purpose Introduce a novel coil design using an electrically long transversely oriented slot in a conductive sheet. Theory and Methods Theoretical…”
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An eight‐channel sodium/proton coil for brain MRI at 3 T by Lakshmanan, Karthik, Brown, Ryan, Madelin, Guillaume, Qian, Yongxian, Boada, Fernando, Wiggins, Graham C.

“…The purpose of this work is to illustrate a new coil decoupling strategy and its application to a transmit/receive sodium/proton phased array for magnetic…”
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High‐performance radiofrequency coils for 23 Na MRI: brain and musculoskeletal applications by Wiggins, Graham C., Brown, Ryan, Lakshmanan, Karthik

“…23 Na RF coil design for brain and MSK applications presents a number of challenges, including poor coil loading for arrays of small coils and SNR penalties…”
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High-performance radiofrequency coils for super(23)Na MRI: brain and musculoskeletal applications by Wiggins, Graham C, Brown, Ryan, Lakshmanan, Karthik

“…super(23)Na RF coil design for brain and MSK applications presents a number of challenges, including poor coil loading for arrays of small coils and SNR…”
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A Fast Method to Estimate the SAR Distribution From Temperature Increased Maps by Carluccio, Giuseppe, Oh, Sukhoon, Kim, Sangwoo, Kim, Donghyuk, Lakshmanan, Karthik, Collins, Christopher M.

“…Objectives: Estimation of Specific energy Absorption Rate (SAR) is critical to assess RF safety for devices that rely on the transmission of electromagnetic…”
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High Performance RF Coils for 23Na MRI: Brain and Musculoskeletal Applications by Wiggins, Graham C., Brown, Ryan, Lakshmanan, Karthik

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A flexible nested sodium and proton coil array with wideband matching for knee cartilage MRI at 3T by Brown, Ryan, Lakshmanan, Karthik, Madelin, Guillaume, Alon, Leeor, Chang, Gregory, Sodickson, Daniel K., Regatte, Ravinder R., Wiggins, Graham C.

“…Purpose We describe a 2 × 6 channel sodium/proton array for knee MRI at 3T. Multielement coil arrays are desirable because of well‐known signal‐to‐noise ratio…”
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High-performance radiofrequency coils for 23Na MRI: brain and musculoskeletal applications by Wiggins, Graham C., Brown, Ryan, Lakshmanan, Karthik

“…23Na RF coil design for brain and MSK applications presents a number of challenges, including poor coil loading for arrays of small coils and SNR penalties…”
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