Search Results - "Frydrychowicz, A."

Quantitative 2D and 3D phase contrast MRI: Optimized analysis of blood flow and vessel wall parameters by Stalder, A.F., Russe, M.F., Frydrychowicz, A., Bock, J., Hennig, J., Markl, M.

“…Quantification of CINE phase contrast (PC)‐MRI data is a challenging task because of the limited spatiotemporal resolution and signal‐to‐noise ratio (SNR). The…”
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3D blood flow characteristics in the carotid artery bifurcation assessed by flow-sensitive 4D MRI at 3T by Harloff, A., Albrecht, F., Spreer, J., Stalder, A.F., Bock, J., Frydrychowicz, A., Schöllhorn, J., Hetzel, A., Schumacher, M., Hennig, J., Markl, M.

“…To determine three‐dimensional (3D) blood flow patterns in the carotid bifurcation, 10 healthy volunteers and nine patients with internal carotid artery (ICA)…”
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Analysis and predictability of technologists' perception of MR exam complexity by Wang, X., Uhlemann, F., Borgert, J., Chaduvula, S.C., Tellis, R., Frydrychowicz, A., Barkhausen, J., Amthor, T.

“…As MRI becomes a routine clinical diagnostic method, its complexity of techniques, protocols and scanning is growing. On the other hand, aggravated by the…”
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Comparison of radial 4D Flow-MRI with perivascular ultrasound to quantify blood flow in the abdomen and introduction of a porcine model of pre-hepatic portal hypertension by Frydrychowicz, A., Roldan-Alzate, A., Winslow, E., Consigny, D., Campo, C. A., Motosugi, U., Johnson, K. M., Wieben, O., Reeder, S. B.

“…Objectives Objectives of this study were to compare radial time-resolved phase contrast magnetic resonance imaging (4D Flow-MRI) with perivascular ultrasound…”
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Rapid study assessment in follow-up whole-body computed tomography in patients with multiple myeloma using a dedicated bone subtraction software by Sieren, M. M., Brenne, F., Hering, A., Kienapfel, H., Gebauer, N., Oechtering, T. H., Fürschke, A., Wegner, F., Stahlberg, E., Heldmann, S., Barkhausen, J., Frydrychowicz, A.

“…Objectives The diagnostic reading of follow-up low-dose whole-body computed tomography (WBCT) examinations in patients with multiple myeloma (MM) is a…”
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Correlation of the Histological ICRS II Score and the 3D MOCART Score for the Analysis of Aged Osteochondral Regenerates in a Large Animal Model by Schagemann, J.C., Galle, L., Gille, J., Frydrychowicz, A., Welsch, G., Salzmann, G., Paech, A., Mittelstaedt, H.

“…Objective Reliable outcome measures are essential to predict the success of cartilage repair techniques. Histology is probably the gold standard, but magnetic…”
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3D MR flow analysis in realistic rapid-prototyping model systems of the thoracic aorta: Comparison with in vivo data and computational fluid dynamics in identical vessel geometries by Canstein, C., Cachot, P., Faust, A., Stalder, A.F., Bock, J., Frydrychowicz, A., Küffer, J., Hennig, J., Markl, M.

“…The knowledge of local vascular anatomy and function in the human body is of high interest for the diagnosis and treatment of cardiovascular disease. A…”
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Four-dimensional velocity mapping of the hepatic and splanchnic vasculature with radial sampling at 3 tesla: A feasibility study in portal hypertension by Frydrychowicz, A., Landgraf, B.R., Niespodzany, E., Verma, R.W., Roldán-Alzate, A., Johnson, K.M., Wieben, O., Reeder, S.B.

“…Purpose: To demonstrate the feasibility of PC‐VIPR (Phase Contrast Vastly undersampled Imaging with Projection Reconstruction) for the depiction and…”
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In Vivo Assessment and Visualization of Intracranial Arterial Hemodynamics with Flow-Sensitized 4D MR Imaging at 3T by Wetzel, S, Meckel, S, Frydrychowicz, A, Bonati, L, Radue, E.-W, Scheffler, K, Hennig, J, Markl, M

“…We evaluated electrocardiogram-synchronized flow-sensitized 4-dimensional MR imaging at 3T in combination with advanced 3D visualization strategies to…”
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Rapidly progressive hepatic alveolar echinococcosis in an ABO‐incompatible renal transplant recipient by Geyer, M., Wilpert, J., Wiech, T., Theilacker, C., Stubanus, M., Kramer‐Zucker, A., Fischer, K.‐G., Drognitz, O., Frydrychowicz, A., Kern, W., Walz, G., Pisarski, P.

“…M. Geyer, J. Wilpert, T. Wiech, C. Theilacker, M. Stubanus, A. Kramer‐Zucker, K.‐G. Fischer, O. Drognitz, A. Frydrychowicz, W. Kern, G. Walz, P. Pisarski…”
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Mural inflammatory hyperenhancement in MRI of giant cell (temporal) arteritis resolves under corticosteroid treatment by Bley, T. A., Markl, M., Schelp, M., Uhl, M., Frydrychowicz, A., Vaith, P., Peter, H.-H., Langer, M., Warnatz, K.

“…Objective. To determine the effect of corticosteroid treatment on mural inflammatory hyperenhancement in MRI in GCA. Methods. MRI of the superficial temporal…”
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Balanced left ventricular myocardial SSFP-tagging at 1.5T and 3T by Markl, M., Scherer, S., Frydrychowicz, A., Burger, D., Geibel, A., Hennig, J.

“…The purpose of the study was to evaluate the performance of steady‐state free precession (SSFP)‐tagging at 1.5T and 3T and to define the ideal settings with…”
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Reliability of aortic MRI at 3 Tesla in patients with acute cryptogenic stroke by Harloff, A, Dudler, P, Frydrychowicz, A, Strecker, C, Stroh, A L, Geibel, A, Weiller, C, Hetzel, A, Hennig, J, Markl, M

“…Objectives:To evaluate a new three dimensional (3D) MRI protocol for the reliable detection of aortic high risk plaques compared with transoesophageal…”
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Evaluation of three different measurement methods for dural ectasia in Marfan syndrome by Weigang, E., Ghanem, N., Chang, X.-C., Richter, H., Frydrychowicz, A., Szabó, G., Dudeck, O., Knirsch, W., von Samson, P., Langer, M., Beyersdorf, F.

“…Dural ectasia is a major diagnostic criterion for Marfan syndrome using the Ghent nosology. Our aim was to evaluate the efficacy of three different…”
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Influence of corticosteroid treatment on MRI findings in giant cell arteritis by Bley, T A, Ness, T, Warnatz, K, Frydrychowicz, A, Uhl, M, Hennig, J, Langer, M, Markl, M

“…Giant cell arteritis (GCA) remains a diagnostic challenge. With the use of a high-resolution MRI protocol, visualization of the superficial cranial arteries is…”
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Flow-sensitive in-vivo 4D MR imaging at 3T for the analysis of aortic hemodynamics and derived vessel wall parameters by Frydrychowicz, A, Markl, M, Harloff, A, Stalder, A F, Bock, J, Bley, T A, Berger, A, Russe, M F, Schlensak, C, Hennig, J, Langer, M

“…Modern phase contrast MR imaging at 3 Tesla allows the depiction of 3D morphology as well as the acquisition of time-resolved blood flow velocities in 3…”
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The Effect of Spatial Resolution on Wall Shear Stress Measurements Acquired Using Radial Phase Contrast Magnetic Resonance Angiography in the Middle Cerebral Arteries of Healthy Volunteers: Preliminary Results by Chang, W., Frydrychowicz, A., Kecskemeti, S., Landgraf, B., Johnson, K., Wu, Y., Wieben, O., Mistretta, C., Turski, P.

“…We have recently implemented radial phase-contrast techniques that allow high resolution angiograms with velocity information to be acquired within…”
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Functional assessment of isolated right heart failure by high resolution in-vivo cardiovascular magnetic resonance in mice by Frydrychowicz, A, Spindler, M, Rommel, E, Ertl, G, Haase, A, Neubauer, S, Wiesmann, F

“…Precise and noninvasive characterization of the development of the cardiac phenotype in murine models of heart failure has been widely demanded in modern…”
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MRI in giant cell (temporal) arteritis by Bley, T A, Uhl, M, Markl, M, Frydrychowicz, A, Langer, M

“…Giant cell (temporal) arteritis is a diagnostic challenge. Blindness is a dreaded complication, especially if high-dose steroid treatment is delayed. With an…”
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Actual management of patients with familial ascending aortic aneurysms and type-A aortic dissections by Weigang, E, Chang, X-C, Munk-Schulenburg, S, Richter, H, von Samson, P, Goebel, H, Frydrychowicz, A, Geibel, A, Ammann, S, Schwering, L, Brunner, T, Severin, T, Czerny, M, Beyersdorf, F

“…There are few families with the diagnosis of ascending aortic aneurysm and acute type-A aortic dissection inherited as an autosomal-dominant disorder in the…”
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