Search Results - "Thomen, Robert"

Regional ventilation changes in severe asthma after bronchial thermoplasty with (3)He MR imaging and CT by Thomen, Robert P, Sheshadri, Ajay, Quirk, James D, Kozlowski, Jim, Ellison, Henry D, Szczesniak, Rhonda D, Castro, Mario, Woods, Jason C

“…To quantify regional lung ventilation in healthy volunteers and patients with severe asthma (both before and after thermoplasty) by using a combination of…”
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Single-Session Bronchial Thermoplasty Guided by 129Xe Magnetic Resonance Imaging. A Pilot Randomized Controlled Clinical Trial by Hall, Chase S, Quirk, James D, Goss, Charles W, Lew, Daphne, Kozlowski, Jim, Thomen, Robert P, Woods, Jason C, Tustison, Nicholas J, Mugler, John P, Gallagher, Lora, Koch, Tammy, Schechtman, Ken B, Ruset, Iulian C, Hersman, F William, Castro, Mario

“…Adverse events have limited the use of bronchial thermoplasty (BT) in severe asthma. Hall et al sought to evaluate the effectiveness and safety of using 129Xe…”
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Retrospective respiratory self‐gating and removal of bulk motion in pulmonary UTE MRI of neonates and adults by Higano, Nara S., Hahn, Andrew D., Tkach, Jean A., Cao, Xuefeng, Walkup, Laura L., Thomen, Robert P., Merhar, Stephanie L., Kingma, Paul S., Fain, Sean B., Woods, Jason C.

“…Purpose To implement pulmonary three‐dimensional (3D) radial ultrashort echo‐time (UTE) MRI in non‐sedated, free‐breathing neonates and adults with…”
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Lung microstructure in adolescent idiopathic scoliosis before and after posterior spinal fusion by Thomen, Robert P, Woods, Jason C, Sturm, Peter F, Jain, Viral, Walkup, Laura L, Higano, Nara S, Quirk, James D, Varisco, Brian M

“…Adolescent idiopathic scoliosis (AIS) is associated with decreased respiratory quality of life and impaired diaphragm function. Recent hyperpolarized helium…”
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Quantitative Magnetic Resonance Imaging of Bronchopulmonary Dysplasia in the Neonatal Intensive Care Unit Environment by Walkup, Laura L, Tkach, Jean A, Higano, Nara S, Thomen, Robert P, Fain, Sean B, Merhar, Stephanie L, Fleck, Robert J, Amin, Raouf S, Woods, Jason C

“…Bronchopulmonary dysplasia (BPD) is a prevalent yet poorly characterized pulmonary complication of premature birth; the current definition is based solely on…”
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Morphological and quantitative evaluation of emphysema in chronic obstructive pulmonary disease patients: A comparative study of MRI with CT by Roach, David J., Crémillieux, Yannick, Serai, Suraj D., Thomen, Robert P., Wang, Hui, Zou, Yuanshu, Szczesniak, Rhonda D., Benzaquen, Sadia, Woods, Jason C.

“…Purpose To further validate the ability of ultrashort echo‐time (UTE) magnetic resonance imaging (MRI) in quantifying lung density in patients diagnosed with…”
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Human upper-airway respiratory airflow: In vivo comparison of computational fluid dynamics simulations and hyperpolarized 129Xe phase contrast MRI velocimetry by Xiao, Qiwei, Stewart, Neil J, Willmering, Matthew M, Gunatilaka, Chamindu C, Thomen, Robert P, Schuh, Andreas, Krishnamoorthy, Guruprasad, Wang, Hui, Amin, Raouf S, Dumoulin, Charles L, Woods, Jason C, Bates, Alister J

“…Computational fluid dynamics (CFD) simulations of respiratory airflow have the potential to change the clinical assessment of regional airway function in…”
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Quantification of neonatal lung parenchymal density via ultrashort echo time MRI with comparison to CT by Higano, Nara S., Fleck, Robert J., Spielberg, David R., Walkup, Laura L., Hahn, Andrew D., Thomen, Robert P., Merhar, Stephanie L., Kingma, Paul S., Tkach, Jean A., Fain, Sean B., Woods, Jason C.

“…Purpose To demonstrate that ultrashort echo time (UTE) magnetic resonance imaging (MRI) can achieve computed tomography (CT)‐like quantification of lung…”
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Pulmonary MRI of neonates in the intensive care unit using 3D ultrashort echo time and a small footprint MRI system by Hahn, Andrew D., Higano, Nara S., Walkup, Laura L., Thomen, Robert P., Cao, Xuefeng, Merhar, Stephanie L., Tkach, Jean A., Woods, Jason C., Fain, Sean B.

“…Purpose To determine the feasibility of pulmonary magnetic resonance imaging (MRI) of neonatal lung structures enabled by combining two novel technologies:…”
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A single-breath-hold protocol for hyperpolarized 129 Xe ventilation and gas exchange imaging by Niedbalski, Peter J, Willmering, Matthew M, Thomen, Robert P, Mugler, 3rd, John P, Choi, Jiwoong, Hall, Chase, Castro, Mario

“…Hyperpolarized Xe MRI (Xe-MRI) is increasingly used to image the structure and function of the lungs. Because Xe imaging can provide multiple contrasts…”
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A single‐breath‐hold protocol for hyperpolarized 129Xe ventilation and gas exchange imaging by Niedbalski, Peter J., Willmering, Matthew M., Thomen, Robert P., Mugler, John P., Choi, Jiwoong, Hall, Chase, Castro, Mario

“…Hyperpolarized 129Xe MRI (Xe‐MRI) is increasingly used to image the structure and function of the lungs. Because 129Xe imaging can provide multiple contrasts…”
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Regional Structure-Function in Cystic Fibrosis Lung Disease Using Hyperpolarized 129Xe and Ultrashort Echo Magnetic Resonance Imaging by Thomen, Robert P, Walkup, Laura L, Roach, David J, Higano, Nara, Schapiro, Andrew, Brody, Alan, Clancy, John P, Cleveland, Zackary I, Woods, Jason C

“…Thomen discusses the study on the regional structure-function in cystic fibrosis (CF) lung disease using hyperpolarized 129 Xe and ultrashort echo magnetic…”
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Cyst Ventilation Heterogeneity and Alveolar Airspace Dilation as Early Disease Markers in Lymphangioleiomyomatosis by Walkup, Laura L, Roach, David J, Hall, Chase S, Gupta, Nishant, Thomen, Robert P, Cleveland, Zackary I, McCormack, Francis X, Woods, Jason C

“…Lymphangioleiomyomatosis (LAM) is a rare disease associated with cystic destruction of the pulmonary parenchyma and chronic respiratory failure, and there are…”
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Improving hyperpolarized 129Xe ADC mapping in pediatric and adult lungs with uncertainty propagation by Bdaiwi, Abdullah S., Niedbalski, Peter J., Hossain, Md M., Willmering, Matthew M., Walkup, Laura L., Wang, Hui, Thomen, Robert P., Ruppert, Kai, Woods, Jason C., Cleveland, Zackary I.

“…Rationale Hyperpolarized (HP) 129Xe‐MRI provides non‐invasive methods to quantify lung function and structure, with the 129Xe apparent diffusion coefficient…”
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Improving hyperpolarized 129 Xe ADC mapping in pediatric and adult lungs with uncertainty propagation by Bdaiwi, Abdullah S, Niedbalski, Peter J, Hossain, Md M, Willmering, Matthew M, Walkup, Laura L, Wang, Hui, Thomen, Robert P, Ruppert, Kai, Woods, Jason C, Cleveland, Zackary I

“…Hyperpolarized (HP) Xe-MRI provides non-invasive methods to quantify lung function and structure, with the Xe apparent diffusion coefficient (ADC) being a well…”
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Regional Structure-Function in Cystic Fibrosis Lung Disease Using Hyperpolarized 129 Xe and Ultrashort Echo Magnetic Resonance Imaging by Thomen, Robert P, Walkup, Laura L, Roach, David J, Higano, Nara, Schapiro, Andrew, Brody, Alan, Clancy, John P, Cleveland, Zackary I, Woods, Jason C

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Protocols for multi-site trials using hyperpolarized 129 Xe MRI for imaging of ventilation, alveolar-airspace size, and gas exchange: A position paper from the 129 Xe MRI clinical trials consortium by Niedbalski, Peter J, Hall, Chase S, Castro, Mario, Eddy, Rachel L, Rayment, Jonathan H, Svenningsen, Sarah, Parraga, Grace, Zanette, Brandon, Santyr, Giles E, Thomen, Robert P, Stewart, Neil J, Collier, Guilhem J, Chan, Ho-Fung, Wild, Jim M, Fain, Sean B, Miller, G Wilson, Mata, Jaime F, Mugler, 3rd, John P, Driehuys, Bastiaan, Willmering, Matthew M, Cleveland, Zackary I, Woods, Jason C

“…Hyperpolarized (HP) Xe MRI uniquely images pulmonary ventilation, gas exchange, and terminal airway morphology rapidly and safely, providing novel information…”
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Protocols for multi‐site trials using hyperpolarized 129Xe MRI for imaging of ventilation, alveolar‐airspace size, and gas exchange: A position paper from the 129Xe MRI clinical trials consortium by Niedbalski, Peter J., Hall, Chase S., Castro, Mario, Eddy, Rachel L., Rayment, Jonathan H., Svenningsen, Sarah, Parraga, Grace, Zanette, Brandon, Santyr, Giles E., Thomen, Robert P., Stewart, Neil J., Collier, Guilhem J., Chan, Ho‐Fung, Wild, Jim M., Fain, Sean B., Miller, G. Wilson, Mata, Jaime F., Mugler, John P., Driehuys, Bastiaan, Willmering, Matthew M., Cleveland, Zackary I., Woods, Jason C.

“…Hyperpolarized (HP) 129Xe MRI uniquely images pulmonary ventilation, gas exchange, and terminal airway morphology rapidly and safely, providing novel…”
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Single-Session Bronchial Thermoplasty Guided by 129 Xe Magnetic Resonance Imaging. A Pilot Randomized Controlled Clinical Trial by Hall, Chase S, Quirk, James D, Goss, Charles W, Lew, Daphne, Kozlowski, Jim, Thomen, Robert P, Woods, Jason C, Tustison, Nicholas J, Mugler, 3rd, John P, Gallagher, Lora, Koch, Tammy, Schechtman, Ken B, Ruset, Iulian C, Hersman, F William, Castro, Mario

“…Adverse events have limited the use of bronchial thermoplasty (BT) in severe asthma. We sought to evaluate the effectiveness and safety of using Xe magnetic…”
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Preclinical hyperpolarized 129Xe MRI: ventilation and T2 mapping in mouse lungs at 7 T using multi‐echo flyback UTE by Niedbalski, Peter J., Cochran, Alexander S., Akinyi, Teckla G., Thomen, Robert P., Fugate, Elizabeth M., Lindquist, Diana M., Pratt, Ronald G., Cleveland, Zackary I.

“…Fast apparent transverse relaxation (short T2*) is a common obstacle when attempting to perform quantitative 1H MRI of the lungs. While T2* times are longer…”
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