Research Topics
| Richard SemelkaSummaryAffiliation: University of North Carolina Country: USA Publications
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Detail Information
Publications
Magnetic resonance imaging of the liver: a reviewVasco Heredia
University of North Carolina at Chapel Hill, Department of Radiology, CB 7510, 101 Manning Drive, Chapel Hill, NC 27599 7510, USA 1 919 966 4400 1 919 966 9143
Expert Opin Med Diagn 1:213-23. 2007..MRI is the most accurate imaging modality for the detection and characterization of diffuse and focal liver disease. In the expert opinion section, the authors refer to the advantages and challenges of 3.0T liver imaging...- Objective evaluation of acute adverse events and image quality of gadolinium-based contrast agents (gadobutrol and gadobenate dimeglumine) by blinded evaluation. Pilot studyRichard C Semelka
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 7510, USA
Magn Reson Imaging 31:96-101. 2013..The purpose was to objectively evaluate a recently FDA-approved gadolinium-based contrast agent (GBCA) in comparison to our standard GBCA for acute adverse events and image quality by blinded evaluation... 
The American College of Radiology white paper on radiation dose in medicine:deep impact on the practice of cardiovascular imagingEugenio Picano
CNR, Institute of Clinical Physiology, Pisa, Italy
Cardiovasc Ultrasound 5:37. 2007..Were they be enacted, these simple recommendations would determine a revolution in the contemporary way of teaching, learning and practising cardiology...- Objective determination of standard of care: use of blind readings by external radiologistsRichard C Semelka
Department of Radiology, University of North Carolina at Chapel Hill, 27599 7510, USA
AJR Am J Roentgenol 195:429-31. 2010..The purpose of this study was to determine whether specific findings determined to be critical and standard of care by expert witnesses in a legal case are identifiable by radiologists blinded to clinical outcome and litigation... - MRI findings of posttraumatic intrahepatic vascular shuntsRichard C Semelka
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 7510, USA
J Magn Reson Imaging 29:617-20. 2009..To describe the features of posttraumatic intrahepatic vascular shunts (PIVS) as seen on MRI... 
Liver metastases: comparison of current MR techniques and spiral CT during arterial portography for detection in 20 surgically staged casesR C Semelka
Department of Radiology, University of North Carolina at Chapel Hill 27599 7510, USA
Radiology 213:86-91. 1999....- Imaging strategies to reduce the risk of radiation in CT studies, including selective substitution with MRIRichard C Semelka
Department of Radiology, University of North Carolina at Chapel Hill, 101 Manning Drive, Chapel Hill, NC 27599, USA
J Magn Reson Imaging 25:900-9. 2007..To address what should be done to ensure patient safety, in this review we discuss the "as low as reasonably achievable" (ALARA) principle, and the use of MRI as an alternative to CT... - Magnetic resonance imaging of the liver: how I do itRichard C Semelka
Department of Radiology, University of North Carolina, School of Medicine, Chapel Hill, NC 27599 7510, USA
J Gastroenterol Hepatol 21:632-7. 2006..The present paper provides a brief overview of the rationale behind magnetic resonance imaging (MRI) techniques, a description of the most common sequences used, and a general approach to performing liver MRI... - Focal lesions in normal liverRichard C Semelka
Department of Radiology, University of North Carolina, School of Medicine, Chapel Hill, North Carolina 27599, USA
J Gastroenterol Hepatol 20:1478-87. 2005..Due to the high accuracy for liver lesion detection and characterization, and the intrinsic safety of the modality, MR should be considered the primary imaging tool to investigate liver diseases... - Immunoblastic large B-cell lymphoma of the peripancreatic head region: MR findingsEvlampia A Psatha
Department of Radiology of North Carolina Hospitals, Chapel Hill 27599 7510, USA
Magn Reson Imaging 22:1053-7. 2004..The tumor was closely applied to the lateral margin of the head of the pancreas. The constellation of MR findings was interpreted as consistent with the correct eventual diagnosis of lymphoma... - Contrast agents for MR imaging of the liverR C Semelka
Department of Radiology, University of North Carolina School of Medicine, CB 7510, Chapel Hill, NC 27599 7510, USA
Radiology 218:27-38. 2001..The clinical application of the different categories of contrast agents, techniques for their administration, sequences to be used, and appearances of common entities on contrast agent-enhanced studies are described... - Chronic hepatitis: correlation of early patchy and late linear enhancement patterns on gadolinium-enhanced MR images with histopathology initial experienceR C Semelka
Department of Radiology, University of North Carolina, Chapel Hill, North Carolina 27599 7510, USA
J Magn Reson Imaging 13:385-91. 2001.... - MRI findings of rapidly progressive hepatocellular carcinomaAndrea S Kierans
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 7510, USA
Magn Reson Imaging 28:790-6. 2010..The purpose of this study is to determine the magnetic resonance imaging (MRI) and patient characteristics in subjects with hepatocellular carcinoma (HCC) that exhibit rapid progression... - Enhancement of abdominal organs on hepatic arterial phase: quantitative comparison between 1.5- and 3.0-T magnetic resonance imagingJose A Goncalves Neto
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
Magn Reson Imaging 28:47-55. 2010..To compare the extent of enhancement of abdominal organs as shown on subphases of hepatic arterial phase quantitatively between 1.5- and 3.0-T MRI among patients with various abdominal conditions... - Liver MR imaging: 1.5T versus 3TMiguel Ramalho
Department of Radiology, University of North Carolina at Chapel Hill, CB 7510, 101 Manning Drive, Chapel Hill, NC 27599 7510, USA
Magn Reson Imaging Clin N Am 15:321-47, vi. 2007..Further research and development is necessary to overcome disadvantages, such as with in- and out-of phase T1-weighted gradient-echo sequences, and to minimize artifacts that appear at 3T... - Thermoablative treatments for malignant liver lesions: 10-year experience of MRI appearances of treatment responseAndrea S Kierans
Department of Radiology, University of North Carolina Hospitals and University of North Carolina at Chapel Hill, 27599 7510, USA
AJR Am J Roentgenol 194:523-9. 2010..The objective of our study was to describe our 10-year experience using MRI to evaluate response to local thermoablative interventions in the treatment of malignant liver lesions... - Early contrast enhancement of the liver: exact description of subphases using MRIJose A Goncalves Neto
Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
Magn Reson Imaging 27:792-800. 2009..The purpose of this study was to describe the subphases of early post-contrast enhancement of the liver, using vessel enhancement patterns, and correlate these findings with enhancement patterns of abdominal organs... - MR findings of lithium-related kidney disease: preliminary observations in four patientsAndreia Roque
Department of Radiology, University of North Carolina, Chapel Hill, USA
Abdom Imaging 37:140-6. 2012..To describe MR features of the kidney in patients on chronic lithium therapy and to correlate findings with the level of renal impairment...