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Your search keyword '"Edelman, R.R."' showing total 42 results
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42 results on '"Edelman, R.R."'

2. Non-contrast-enhanced magnetic resonance imaging for visualization and quantification of endovascular aortic prosthesis, their endoleaks and aneurysm sacs at 1.5 T

Author

Salehi Ravesh, M., Langguth, P., Pfarr, J.A., Schupp, J., Trentmann, J., Koktzoglou, I., Edelman, R.R., Graessner, J., Greiser, A., Hautemann, D., Hennemuth, A., Both, M., Jansen, O., Hövener, J.-B., Schäfer, J.P., and Publica

Abstract

Purpose After an endovascular aortic aneurysm repair (EVAR), a follow-up at 1, 6 and every 12 months is recommended for remainder of the patient's life. The diagnostic standard methods for diagnosing endoleaks and visualization of aneurysms in EVAR-patients are: invasive digital subtraction angiography (DSA), contrast enhanced (CE) computed tomographic angiography (CE-CTA), and magnetic resonance angiography (CE-MRA). These techniques, however, require the use of iodine- or gadolinium-based contrast agents with rare, but possibly life threatening side effects such as renal impairment, thyrotoxicosis and allergic reactions, nephrogenic systemic fibrosis, and cerebral gadolinium deposition. The aim of this prospective study was to compare a non-contrast-enhanced MRI protocol (consist of four MRI methods) with DSA and CE-CTA for visualization and quantification of endovascular aortic prosthesis, their endoleaks and aneurysms. Material and methods Eight patients (mean age 76.8 ± 4.9 years, 63% male), whose thoracic, abdominal, or iliac aneurysms were treated with different endovascular prosthesis and suffered from type I-V endoleaks, were examined on a 1.5 Tesla MR system. Quiescent-interval slice selective MR angiography (QISS-MRA), 4-dimensional (4D)-flow MRI, T1- and T2-mapping, as well as DSA and CE-CTA were used for the visualization and quantification of endoprosthesis, endoleaks, and aneurysms in these patients. Results QISS-MRA provided good visualization of endoleaks and comparable quantification of aneurysm size with respect to CE-CTA and DSA. The 4D-flow MRI provided additional information about the wall shear stress, which could not be determined using DSA. In contrast to CE-CTA, T1- and T2-mapping provided detailed information about heterogeneous areas within an aneurysm sac. Conclusions Compared to DSA and CE-CTA, the proposed MRI methods provide improved anatomical and functional information for various types of endoprostheses and endoleaks. In addition, hemodynamic parameters of the aorta and information on the content of aneurysm sac are provided as well. Within the frame of personalized medicine, the personalized diagnosis enabled by this non-CE MRI protocol is the foundation for a personalized and successful treatment.

Published
2019

12. Breath-hold 3D MR coronary angiography (MRCA)

Author

Wielopolski, Piotr, van Geuns, Robert Jan, Feijter, Pim, Bruin, Hendrik, Oudkerk, M, Oudkerk, M., Edelman, R.R., Radiology & Nuclear Medicine, and Cardiology

Published
1997

17. Pulmonary disorders: ventilation-perfusion MR imaging with animal models

Author

Chen, Q., Levin, D.L., Kim, D.S., David, V., McNicholas, M., Chen, V., Jakob, P.M., Griswold, M.A., Goldfarb, J.W., Hatabu, H., Edelman, R.R., Chen, Q., Levin, D.L., Kim, D.S., David, V., McNicholas, M., Chen, V., Jakob, P.M., Griswold, M.A., Goldfarb, J.W., Hatabu, H., and Edelman, R.R.

Abstract

Item does not contain fulltext

Published
1999

33. Evaluation of Fetal Central Nervous System Abnormalities with Ultrafast MRI

Author

Levine, D., Barnes, P.D., Madsen, J., Hulka, C., and Edelman, R.R.

Abstract

Central nervous system (CNS) abnormalities affect approximately 6000 neonates each year in the United States. The standard prenatal approach for evaluating these anomalies is ultrasonography (US). However, the sonographic evaluation of the fetal CNS is limited.41 fetuses with suspected abnormal central nervous system (CNS) underwent prenatal MRI. In each case MR allowed for visualization of the region of suspected abnormality. MR added additional information to that provided by ultrasound in 28 cases.When a CNS anomaly is detected by US, then MR may demonstrate additional findings which alter patient counseling and management.

Published
1999
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38. ADVANCES IN MRI OF PULMONARY STRUCTURE AND FUNCTION.

Author

Edelman, R.R., Chen, Q., Mai, V., and Hatabi, H.

Subjects
*LUNGS, *PERFUSION, *MAGNETIC resonance imaging
Abstract

Focuses on the magnetic resonance imaging (MRI) of pulmonary structure and function. Evaluation of pulmonary perfusion by radionuclide techniques; Feasibility of MRI of pulmonary parenchyma; Imaging of lung ventilation.

Published
2000

39. Portal vein thrombosis: A review.

Author

Cohen, J. and Edelman, R.R.

Subjects
*BLOOD diseases
Abstract

Reviews existing literature on portal vein thrombosis (PVT) with an emphasis on recent developments. Etiology; Clinical aspects; Radiology; Management.

Published
1992
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40. NEW STRATEGIES IN MR PERFUSION AND VENTILATION IMAGING OF THE LUNG.

Author

Vaninbroukx, J., Bosmans, H., Miao, Y., Edelman, R.R., Verschakelen, J., and Marchal, G.

Subjects
PNEUMOANGIOGRAPHY, PERFUSION, RESPIRATION
Abstract

Examines techniques for the magnetic resonance perfusion and ventilation angiography of the lung. Perfusion estimation; Visualization of the lung by proton-magnetic resonance imaging; Reproducibility of the techniques.

Published
2000

42. Book reviews.

Author

Edelman, R.R.

Subjects
MAGNETIC Resonance Imaging of the Brain & Spine (Book)
Abstract

Reviews the book `Magnetic Resonance Imaging of the Brain and Spine,' edited by Scott W. Atlas.

Published
1991

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