Search Results - "Schmidt, Ehud J"

Inversion-recovery ultrashort-echo-time (IR-UTE) MRI-based detection of radiation dose heterogeneity in gynecologic cancer patients treated with HDR brachytherapy by Sheikh, Khadija, Daniel, Bruce L, Roumeliotis, Michael, Lee, Junghoon, Hrinivich, William T, Benkert, Thomas, Bhat, Himanshu, Seethamraju, Ravi T, Viswanathan, Akila N, Schmidt, Ehud J

“…To evaluate the relationship between delivered radiation (RT) and post-RT inversion-recovery ultrashort-echo-time (IR-UTE) MRI signal-intensity (SI) in…”
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Balanced-force shim system for correcting magnetic-field inhomogeneities in the heart due to implanted cardioverter defibrillators by Hrovat, Mirko, Kolandaivelu, Aravindan, Wang, Yifan, Gunderman, Anthony, Halperin, Henry R, Chen, Yue, Schmidt, Ehud J

“…In the US, 1.4 million people have implanted ICDs for reducing the risk of sudden death due to ventricular arrhythmias. Cardiac MRI (cMR) is of particular…”
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3DQRS: A method to obtain reliable QRS complex detection within high field MRI using 12-lead electrocardiogram traces by Gregory, T. Stan, Schmidt, Ehud J., Zhang, Shelley Hualei, Ho Tse, Zion Tsz

“…Purpose To develop a technique that accurately detects the QRS complex in 1.5 Tesla (T), 3T, and 7T MRI scanners. Methods During early systole, blood is…”
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Magnetic Resonance Imaging–Guided Cardiac Interventions by Schmidt, Ehud J., PhD

“…Performing intraoperative cardiovascular procedures inside an MR imaging scanner can potentially provide substantial advantage in clinical outcomes by reducing…”
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Ablation Lesion Characterization in Scarred Substrate Assessed Using Cardiac Magnetic Resonance by Tao, Susumu, Guttman, Michael A., Fink, Sarah, Elahi, Hassan, Patil, Kaustubha D., Ashikaga, Hiroshi, Kolandaivelu, Aravindan D., Berger, Ronald D., Halushka, Marc K., Schmidt, Ehud J., Herzka, Daniel A., Halperin, Henry R.

“…This study examined radiofrequency catheter ablation (RFCA) lesions within and around scar by cardiac magnetic resonance (CMR) imaging and histology. Substrate…”
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MRI Catheter Guidance and Steering of Vascular Procedures with a Reduced Heating Risk by Schmidt, Ehud J., PhD

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Fully automated multiorgan segmentation of female pelvic magnetic resonance images with coarse‐to‐fine convolutional neural network by Zabihollahy, Fatemeh, Viswanathan, Akila N, Schmidt, Ehud J, Morcos, Marc, Lee, Junghoon

“…Purpose Brachytherapy combined with external beam radiotherapy (EBRT) is the standard treatment for cervical cancer and has been shown to improve overall…”
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Fully automated segmentation of clinical target volume in cervical cancer from magnetic resonance imaging with convolutional neural network by Zabihollahy, Fatemeh, Viswanathan, Akila N., Schmidt, Ehud J., Lee, Junghoon

“…Purpose Contouring clinical target volume (CTV) from medical images is an essential step for radiotherapy (RT) planning. Magnetic resonance imaging (MRI) is…”
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MR-Safe Cartesian Platform for Active Cardiac Shimming: Preliminary Validation by Wang, Yifan, Hrovat, Mirko, Kolandaivelu, Aravindan, Gunderman, Anthony L., Halperin, Henry R., Schmidt, Ehud J., Chen, Yue

“…Objective: Implanted Cardioverter Defibrillators (ICDs) induce a large (100 parts per million) inhomogeneous magnetic field in the magnetic resonance imaging…”
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Acute enhancement of necrotic radio-frequency ablation lesions in left atrium and pulmonary vein ostia in swine model with non-contrast-enhanced T 1 -weighted MRI by Guttman, Michael A, Tao, Susumu, Fink, Sarah, Tunin, Rick, Schmidt, Ehud J, Herzka, Daniel A, Halperin, Henry R, Kolandaivelu, Aravindan

“…To evaluate non-contrast-enhanced MRI of acute radio-frequency ablation (RFA) lesions in the left atrium (LA) and pulmonary vein (PV) ostia. The goal is to…”
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Acute enhancement of necrotic radio‐frequency ablation lesions in left atrium and pulmonary vein ostia in swine model with non‐contrast‐enhanced T1‐weighted MRI by Guttman, Michael A., Tao, Susumu, Fink, Sarah, Tunin, Rick, Schmidt, Ehud J., Herzka, Daniel A., Halperin, Henry R., Kolandaivelu, Aravindan

“…Purpose To evaluate non‐contrast‐enhanced MRI of acute radio‐frequency ablation (RFA) lesions in the left atrium (LA) and pulmonary vein (PV) ostia. The goal…”
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Image-Guided Gynecologic Brachytherapy for Cervical Cancer by Fields, Emma C., Hazell, Sarah, Morcos, Marc, Schmidt, Ehud J., Chargari, Cyrus, Viswanathan, Akila N.

“…The incorporation of magnetic resonance imaging in brachytherapy has resulted in an increased use of interstitial catheters in order to create a comprehensive…”
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MR-Tracked Deflectable Stylet for Gynecologic Brachytherapy by Gunderman, Anthony L., Schmidt, Ehud J., Morcos, Marc, Tokuda, Junichi, Seethamraju, Ravi T., Halperin, Henry R., Viswanathan, Akila N., Chen, Yue

“…Brachytherapy is a radiation based treatment that is implemented by precisely placing focused radiation sources into tumors. In advanced interstitial cervical…”
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3-T MR-guided brachytherapy for gynecologic malignancies by Kapur, Tina, Egger, Jan, Damato, Antonio, Schmidt, Ehud J, Viswanathan, Akila N

“…Abstract Gynecologic malignancies are a leading cause of death in women worldwide. Standard treatment for many primary and recurrent gynecologic cancer cases…”
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Temperature-Sensitive Frozen-Tissue Imaging for Cryoablation Monitoring Using STIR-UTE MRI by Tokuda, Junichi, Wang, Qun, Tuncali, Kemal, Seethamraju, Ravi T., Tempany, Clare M., Schmidt, Ehud J.

“…PURPOSEThe aim of this study was to develop a method to delineate the lethally frozen-tissue region (temperature less than −40°C) arising from interventional…”
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MRI Conditional Actively Tracked Metallic Electrophysiology Catheters and Guidewires With Miniature Tethered Radio-Frequency Traps: Theory, Design, and Validation by Alipour, Akbar, Meyer, Eric S., Dumoulin, Charles L., Watkins, Ronald D., Elahi, Hassan, Loew, Wolfgang, Schweitzer, Jeffrey, Olson, Gregory, Chen, Yue, Tao, Susumu, Guttman, Michael, Kolandaivelu, Aravindan, Halperin, Henry R., Schmidt, Ehud J.

“…Objective: Cardiovascular interventional devices typically have long metallic braids or backbones to aid in steerability and pushability. However,…”
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An endovaginal MRI array with a forward‐looking coil for advanced gynecological cancer brachytherapy procedures: Design and initial results by Alipour, Akbar, Viswanathan, Akila N., Watkins, Ronald D., Elahi, Hassan, Loew, Wolfgang, Meyer, Eric, Morcos, Marc, Halperin, Henry R., Schmidt, Ehud J.

“…Purpose To develop an endovaginal MRI array that provides signal enhancement forward into the posterior parametrium and sideways into the vaginal wall,…”
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Voltage-based electroanatomic mapping system for MR-guided cardiac electrophysiology: preliminary swine validations by Tse, Zion, Dumoulin, Charles, Byrd, Israel, Schweitzer, Jeffrey, Watkins, Ronald, Pauly, Kim Butts, Kwong, Raymond Y, Michaud, Gregory F, Stevenson, William, Jolesz, Ferenc, Schmidt, Ehud J

“…Doc number: O88…”
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Intracardiac MR imaging (ICMRI) guiding‐sheath with amplified expandable‐tip imaging and MR‐tracking for navigation and arrythmia ablation monitoring: Swine testing at 1.5 and 3T by Schmidt, Ehud J., Olson, Gregory, Tokuda, Junichi, Alipour, Akbar, Watkins, Ronald D., Meyer, Eric M., Elahi, Hassan, Stevenson, William G., Schweitzer, Jeffrey, Dumoulin, Charles L., Johnson, Thomas, Kolandaivelu, Aravindan, Loew, Wolfgang, Halperin, Henry R.

“…Purpose Develop a deflectable intracardiac MR imaging (ICMRI) guiding‐sheath to accelerate imaging during MR‐guided electrophysiological (EP) interventions for…”
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MRI-Conditional Eccentric-Tube Injection Needle: Design, Fabrication, and Animal Trial by Gunderman, Anthony L., Schmidt, Ehud J., Xiao, Qingyu, Tokuda, Junichi, Seethamraju, Ravi T., Neri, Luca, Halperin, Henry R., Kut, Carmen, Viswanathan, Akila N., Morcos, Marc, Chen, Yue

“…Effective radiation therapy aims to maximize the radiation dose delivered to the tumor, while minimizing damage to the surrounding healthy tissues, which can…”
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