Research Topics
| Patrick A HeinSummaryAffiliation: Humboldt University Country: Germany Publications
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Detail Information
Publications
Variability of semiautomated lung nodule volumetry on ultralow-dose CT: comparison with nodule volumetry on standard-dose CTPatrick A Hein
Department of Radiology, Charite Campus Mitte, Charite Universitatsmedizin Berlin, Chariteplatz 1, 10117, Berlin, Germany
J Digit Imaging 23:8-17. 2010..Thus, the evaluated segmentation software provides nodule volumetry that appears to be independent of the dose level with which the CT source dataset is acquired...- Linear and volume measurements of pulmonary nodules at different CT dose levels - intrascan and interscan analysisP A Hein
Institut fur Radiologie, Charite Campus Mitte, Charite Universitatsmedizin Berlin
Rofo 181:24-31. 2009.... - Images in cardiovascular medicine. Multiple thrombosis with aortic occlusion after heparin-induced thrombocytopenia demonstrated by multislice computed tomographyPatrick A Hein
Department of Radiology, , Medical School, , Berlin, Germany
Circulation 113:e80-3. 2006 - Initial experience with a chest pain protocol using 320-slice volume MDCTPatrick A Hein
Institut fur Radiologie, Charite Campus Mitte, Charite Universitatsmedizin, Chariteplatz 1, 10117 Berlin, Germany
Eur Radiol 19:1148-55. 2009..This result was achieved with less contrast material and reduced radiation exposure compared with previously investigated imaging protocols... - Computer-aided pulmonary nodule detection - performance of two CAD systems at different CT dose levelsP A Hein
Institut fur Radiologie, Charite Campus Mitte, Charite Universitatsmedizin Berlin
Rofo 181:1056-64. 2009.... - Computer-aided detection in computed tomography colonography with full fecal tagging: comparison of standalone performance of 3 automated polyp detection systemsPatrick A Hein
Department of Radiology, Charite University Hospital, Campus Mitte, Berlin, Germany
Can Assoc Radiol J 61:102-8. 2010..We sought to compare the performance of 3 computer-aided detection (CAD) polyp algorithms in computed tomography colonography (CTC) with fecal tagging... - Feasibility of contrast material volume reduction in coronary artery imaging using 320-slice volume CTPatrick A Hein
Department of Radiology, Charite University Hospital, Campus Mitte, Chariteplatz 1, 10117 Berlin, Germany
Eur Radiol 20:1337-43. 2010..To assess reduced volumes of contrast agent on image quality for coronary computed tomography angiography (CCTA) by using single-beat cardiac imaging with 320-slice CT... - Precision of forty slice spiral computed tomography for quantifying aortic valve stenosis: comparison with echocardiography and validation against cardiac catheterizationAlexander Lembcke
Department of Radiology, Heart Center University of Leipzig, Saxony, Germany
Invest Radiol 43:719-28. 2008..We evaluated the precision of multislice spiral computed tomography (MSCT) for the quantification of aortic valve stenosis in comparison with echocardiography and cardiac catheterization... - Intra- and interobserver variability of linear and volumetric measurements of brain metastases using contrast-enhanced magnetic resonance imagingHans Christian Bauknecht
Department of Radiology, Charite Campus Mitte, Charite Universitatsmedizin Berlin, Berlin, Germany
Invest Radiol 45:49-56. 2010..To compare the intra- and interobserver variability of diameter and semiautomated volume measurements of brain metastases on contrast-enhanced magnetic resonance imaging (CE-MRI) data... - Low-dose triple-rule-out using 320-row-detector volume MDCT--less contrast medium and lower radiation exposureTahir Durmus
Department of Radiology, Charite University Hospital Berlin, Campus Mitte, 10117 Berlin, Germany
Eur Radiol 21:1416-23. 2011..To investigate image quality of triple-rule-out (TRO) computed tomography (CT) using a 320-row-detector CT system with substantially reduced contrast medium volume at 100 kV... - Acute myocardial ischemia after aortic valve replacement: a comprehensive diagnostic evaluation using dynamic multislice spiral computed tomographyAlexander Lembcke
Department of Radiology, Charite Universitatsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
Eur J Radiol 57:351-5. 2006.... - Pictorial review: electron beam computed tomography and multislice spiral computed tomography for cardiac imagingAlexander Lembcke
Department of Radiology, Charite Universitatsmedizin Berlin, Campus Mitte, Freie Universität Berlin and Humboldt Universität zu Berlin, Germany
Eur J Radiol 57:356-67. 2006..However, technical developments are still needed to further improve the temporal resolution in MSCT and to reduce the substantial radiation exposure... - Planimetry of the aortic valve orifice area: comparison of multislice spiral computed tomography and magnetic resonance imagingYvonne Westermann
Department of Radiology, Charite University Medicine, Berlin, Germany
Eur J Radiol 77:426-35. 2011..We sought to determine the comparability of multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) for measuring the aortic valve orifice area (AVA) and grading aortic valve stenosis... - CT technology overview: 64-slice and beyondPatrik Rogalla
Department of Radiology, Campus Charite Mitte, Charite Universitatsmedizin Berlin, Chariteplatz 1, 10117 Berlin, Germany
Radiol Clin North Am 47:1-11. 2009..The latest innovations-new detector materials, dual-layer detector, dual-source and dynamic volume CT-represent the pinnacles in CT imaging, pursuing different directions to further clinical applications of CT... - Free-breathing echo-planar imaging based diffusion-weighted magnetic resonance imaging of the liver with prospective acquisition correctionPatrick Asbach
Department of Radiology, Charite Universitatsmedizin Berlin, Chariteplatz 1, Berlin, Germany
J Comput Assist Tomogr 32:372-8. 2008..To evaluate soft tissue contrast and image quality of a respiratory-triggered echo-planar imaging based diffusion-weighted sequence (EPI-DWI) with different b values for magnetic resonance imaging (MRI) of the liver... - Quantification of aortic valve stenosis: head-to-head comparison of 64-slice spiral computed tomography with transesophageal and transthoracic echocardiography and cardiac catheterizationAlexander Lembcke
Department of Radiology, Charite University Medicine Berlin, Berlin, Germany
Invest Radiol 44:7-14. 2009.... - First-pass whole-body magnetic resonance angiography (MRA) using the blood-pool contrast medium gadofosveset trisodium: comparison to gadopentetate dimeglumineChristian Klessen
Department of Radiology, Charite Universitatsmedizin Berlin, Chariteplatz 1, 10117 Berlin, Germany
Invest Radiol 42:659-64. 2007..To evaluate gadofosveset trisodium for first-pass magnetic resonance angiography (MRA) in the setting of whole-body MRA (WB-MRA)... - Does ultra-low-dose CT with a radiation dose equivalent to that of KUB suffice to detect renal and ureteral calculi?Claudia Kluner
Department of Radiology, Charite Universitatsmedizin Berlin, Campus Mitte, Berlin, Germany
J Comput Assist Tomogr 30:44-50. 2006..001). With regard to published data for standard-dose CT, the present CT protocol seems to be comparable in its diagnostic yield in assessing patients with calculi, and its radiation dose is equivalent to that of KUB... - Importance of protocol target definition on the ability to spare normal tissue: an IMRT and 3D-CRT planning comparison for intraorbital tumorsPatrick A Hein
Section of Radiation Oncology, Dartmouth-Hitchcock Medical Center and Norris Cotton Cancer Center, Lebanon, NH 03756, USA
Int J Radiat Oncol Biol Phys 62:1540-8. 2005..Our results can add to the ongoing discussion in the design of future 3D-CRT/IMRT protocols... - Tumor microcirculation and diffusion predict therapy outcome for primary rectal carcinomaAlexander F DeVries
Department of Radiotherapy and Radiooncology, Ludwig Franzens Universität Innsbruck, Innsbruck, Austria
Int J Radiat Oncol Biol Phys 56:958-65. 2003..The aim of our study was to correlate perfusion indices and apparent diffusion coefficients with therapy outcome after chemoradiation... - Diffusion-weighted magnetic resonance imaging for monitoring diffusion changes in rectal carcinoma during combined, preoperative chemoradiation: preliminary results of a prospective studyPatrick A Hein
Department of Radiotherapy and Radiooncology, University of Innsbruck, Innsbruck, Austria
Eur J Radiol 45:214-22. 2003..To evaluate the clinical value of diffusion-weighted magnetic resonance imaging (DW-MRI) to monitor response of primary carcinoma of the rectum to preoperative chemoradiation by measuring tumor apparent diffusion coefficient (ADC)...