Research Output 1987 2017

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2017

Abordagem modificada na caracterização de nódulos adrenais utilizando um protocolo padrão de ressonância magnética abdominal

Matos, A. P., Semelka, R. C., Herédia, V., Alobaidiy, M., Gomes, F. V. & Ramalho, M. Jan 1 2017 In : Radiologia Brasileira. 50, 1, p. 19-25 7 p.

Research output: Research - peer-reviewArticle

Adenoma
Magnetic Resonance Imaging
Sensitivity and Specificity
ROC Curve
Students

Enhancement of abdominal structures on MRI at 1.5 and 3 T: a retrospective intraindividual crossover comparison

AlObaidy, M., Ramalho, M., Velloni, F., Matos, A. P., Herman, K. & Semelka, R. C. Apr 1 2017 In : European Radiology. 27, 4, p. 1596-1604 9 p.

Research output: Research - peer-reviewArticle

Radiologists
Health Insurance Portability and Accountability Act
Magnets
Abdominal Aorta
Informed Consent
Gadolinium
Contrast Media
Serum
Association reactions
Kinetics
2016

Bone metastases of hepatocellular carcinoma: Appearance on MRI using a standard abdominal protocol

Velloni, F., Ramalho, M., AlObaidy, M., Matos, A. P., Altun, E. & Semelka, R. C. May 1 2016 In : American Journal of Roentgenology. 206, 5, p. 1003-1012 10 p.

Research output: Research - peer-reviewArticle

Hepatocellular Carcinoma
Neoplasm Metastasis
Bone and Bones
Liver
Chronic Hepatitis C

Can gadolinium be re-chelated in vivo? Considerations from decorporation therapy

Prybylski, J. P., Semelka, R. C. & Jay, M. Dec 1 2016 In : Magnetic Resonance Imaging. 34, 10, p. 1391-1393 3 p.

Research output: Research - peer-reviewArticle

Gadolinium
Therapeutics
Chelation
Chelation Therapy
Deposits

Diagnóstico de carcinoma hepatocelular por ressonância magnética em doentes cirróticos: Onde nos encontramos?

Ramalho, M., Alobaidy, M., Matos, A. P. & Semelka, R. C. May 1 2016 In : Acta Medica Portuguesa. 29, 5, p. 293-296 4 p.

Research output: Research - peer-reviewArticle

7 Citations

Gadolinium deposition disease: Initial description of a disease that has been around for a while

Semelka, R. C., Ramalho, J., Vakharia, A., AlObaidy, M., Burke, L. M., Jay, M. & Ramalho, M. Dec 1 2016 In : Magnetic Resonance Imaging. 34, 10, p. 1383-1390 8 p.

Research output: Research - peer-reviewArticle

Gadolinium
Contrast Media
Pain
Surveys and Questionnaires
Toxicity
6 Citations

Gadolinium toxicity and treatment

Ramalho, J., Ramalho, M., Jay, M., Burke, L. M. & Semelka, R. C. Dec 1 2016 In : Magnetic Resonance Imaging. 34, 10, p. 1394-1398 5 p.

Research output: Research - peer-reviewArticle

Gadolinium
Therapeutics
Toxicity
Contrast Media
Bone and Bones
2 Citations

Hemangioendotelioma epitelioide hepático: Pesquisa em três centros universitários

Giardino, A., Miller, F. H., Kalb, B., Ramalho, M., Martin, D. R., Rodacki, K., Woosley, J. T. & Semelka, R. C. Sep 1 2016 In : Radiologia Brasileira. 49, 5, p. 288-294 7 p.

Research output: Research - peer-reviewArticle

Epithelioid Hemangioendothelioma
Liver
Magnetic Resonance Imaging
Magnetic Resonance Spectroscopy
Databases

Lobulated margination of liver hemangiomas: Is this a definitive feature?

Matos, A. P., Jeon, Y. H., Ramalho, M., AlObaidy, M. & Semelka, R. C. Jul 1 2016 In : Clinical Imaging. 40, 4, p. 801-805 5 p.

Research output: Research - peer-reviewArticle

Hemangioma
Liver
Incidence
Population

MRI Evaluation of cooperative and non-cooperative patients with non-traumatic acute abdominal pain - preliminary observations

Ramalho, M., Hithaya, I., AlObaidy, M., Kalubowila, J., Jeon, Y. H., Manikkavasakar, S. & Semelka, R. C. Jul 1 2016 In : Clinical Imaging. 40, 4, p. 707-713 7 p.

Research output: Research - peer-reviewArticle

Acute Pain
Abdominal Pain
Sensitivity and Specificity
3 Citations

Natural history of liver imaging reporting and data system category 4 nodules in MRI

Burke, L. M. B., Sofue, K., Alagiyawanna, M., Nilmini, V., Muir, A. J., Choudhury, K. R., Semelka, R. C. & Bashir, M. R. Sep 1 2016 In : Abdominal Radiology. 41, 9, p. 1758-1766 9 p.

Research output: Research - peer-reviewArticle

Natural History
Information Systems
Liver
Health Insurance Portability and Accountability Act
Research Ethics Committees
8 Citations

Presumed Gadolinium Toxicity in Subjects with Normal Renal Function: A Report of 4 Cases

Semelka, R. C., Commander, C. W., Jay, M., Burke, L. M. B. & Ramalho, M. Oct 1 2016 In : Investigative Radiology. 51, 10, p. 661-665 5 p.

Research output: Research - peer-reviewArticle

Gadolinium
Kidney
Contrast Media
Leg
Arm

Radiologist income, receipts, and academic performance: An analysis of many nations

Semelka, R. C., Busireddy, K. K., Burke, L. M. B., Ramalho, M., Martí-Bonmatí, L., Morana, G., Alobaidy, M. & Elias, J. Dec 1 2016 In : Acta Radiologica. 57, 12, p. 1497-1507 11 p.

Research output: Research - peer-reviewArticle

Radiologists
Developed Countries
Developing Countries
Portugal
Saudi Arabia
16 Citations

Self-reported gadolinium toxicity: A survey of patients with chronic symptoms

Burke, L. M. B., Ramalho, M., AlObaidy, M., Chang, E., Jay, M. & Semelka, R. C. Oct 1 2016 In : Magnetic Resonance Imaging. 34, 8, p. 1078-1080 3 p.

Research output: Research - peer-reviewArticle

Gadolinium
Surveys and Questionnaires
Toxicity
Contrast Media
Kidney
20 Citations
gadodiamide
Cerebellar Nuclei
gadobenic acid
Gadolinium
Contrast Media
2 Citations

Summary of special issue on gadolinium bioeffects and toxicity with a look to the future

Semelka, R. C., Ramalho, M. & Jay, M. Aug 27 2016 (Accepted/In press) In : Magnetic Resonance Imaging.

Research output: Research - peer-reviewArticle

Gadolinium
Toxicity

Surrogate arterial phase imaging using a long duration (≈1.5 min) radial acquisition T1-weighted sequence: An alternative in patients unable to breath-hold

AlObaidy, M., Ramalho, M., Busireddy, K. K. R., Dale, B. M., Burke, L. M., Altun, E., Liu, B. & Semelka, R. C. Jan 1 2016 In : Acta Radiologica. 57, 8, p. 955-963 9 p.

Research output: Research - peer-reviewArticle

Respiration
Magnetic Resonance Spectroscopy
Pediatrics
Injections
Liver
2 Citations

Synthesis and Physicochemical Characterization of a Diethyl Ester Prodrug of DTPA and Its Investigation as an Oral Decorporation Agent in Rats

Huckle, J. E., Sadgrove, M. P., Leed, M. G. D., Yang, Y. T., Mumper, R. J., Semelka, R. C. & Jay, M. Jul 1 2016 In : AAPS Journal. 18, 4, p. 972-980 9 p.

Research output: Research - peer-reviewArticle

Prodrugs
Esters
Acids
Powders
Solubility
13 Citations

T1 signal-intensity increase in the dentate nucleus after multiple exposures to Gadodiamide: Intraindividual comparison between 2 commonly used sequences

Ramalho, J., Ramalho, M., AlObaidy, M., Nunes, R. H., Castillo, M. & Semelka, R. C. Aug 1 2016 In : American Journal of Neuroradiology. 37, 8, p. 1427-1431 5 p.

Research output: Research - peer-reviewArticle

gadodiamide
Cerebellar Nuclei
Middle Cerebellar Peduncle
Gadolinium
Nonparametric Statistics
2015
9 Citations

Accuracy of MRI skeletal age estimation for subjects 12–19. Potential use for subjects of unknown age

Serinelli, S., Panebianco, V., Martino, M., Battisti, S., Rodacki, K., Marinelli, E., Zaccagna, F., Semelka, R. C. & Tomei, E. May 1 2015 In : International Journal of Legal Medicine. 129, 3, p. 609-617 9 p.

Research output: Research - peer-reviewArticle

Observer Variation
Wrist
Chronic Disease
Hand
Research Personnel
6 Citations

High-resolution 3D-GRE imaging of the abdomen using controlled aliasing acceleration technique – a feasibility study

AlObaidy, M., Ramalho, M., Busireddy, K. K. R., Liu, B., Burke, L. M., Altun, E., Dale, B. M. & Semelka, R. C. Dec 1 2015 In : European Radiology. 25, 12, p. 3596-3605 10 p.

Research output: Research - peer-reviewArticle

Feasibility Studies
Abdomen
Artifacts
Fats
Liver
88 Citations

High signal intensity in globus pallidus and dentate nucleus on unenhanced T1-weighted MR images: Evaluation of two linear gadolinium-based contrast agents

Ramalho, J., Castillo, M., AlObaidy, M., Nunes, R. H., Ramalho, M., Dale, B. M. & Semelka, R. C. Sep 1 2015 In : Radiology. 276, 3, p. 836-844 9 p.

Research output: Research - peer-reviewArticle

Cerebellar Nuclei
Globus Pallidus
Gadolinium
Contrast Media
Magnetic Resonance Spectroscopy
2 Citations

Inter- and intra-individual comparative study of two gadolinium-based agents: A pilot study

Shin, K. S., AlObaidy, M., Ramalho, M., Jeon, Y. H., Burke, L. M., Altun, E., Stallings, C. G. & Semelka, R. C. Sep 16 2015 In : Abdominal Imaging. 40, 4, p. 865-874 10 p.

Research output: Research - peer-reviewArticle

Gadolinium
gadoterate meglumine
Population
gadobenic acid
Contrast Media
13 Citations

Magnetic resonance imaging of acute appendicitis in pregnancy: A 5-year multiinstitutional study

Burke, L. M. B. , Bashir, M. R. , Miller, F. H. , Siegelman, E. S. , Brown, M. , Alobaidy, M. , Jaffe, T. A. , Hussain, S. M. , Palmer, S. L. , Garon, B. L. , Oto, A. , Reinhold, C. , Ascher, S. M. , Demulder, D. K. , Thomas, S. , Best, S. , Borer, J. , Zhao, K. , Pinel-Giroux, F. , De Oliveira, I. & 2 others Resende, D. & Semelka, R. C. Nov 1 2015 In : American Journal of Obstetrics and Gynecology. 213, 5, p. 693e1-693e6

Research output: Research - peer-reviewArticle

Appendicitis
Magnetic Resonance Imaging
Pregnancy
Sensitivity and Specificity
Pelvic Pain
10 Citations

Magnetic resonance imaging of the cirrhotic liver: An update

Watanabe, A., Ramalho, M., AlObaidy, M., Kim, H. J., Velloni, F. G. & Semelka, R. C. 2015 In : World Journal of Hepatology. 7, 3, p. 468-487 20 p.

Research output: Research - peer-reviewArticle

Magnetic Resonance Imaging
Liver
Hepatocellular Carcinoma
Contrast Media
Information Systems
1 Citations

MR–PET co-registration in upper abdominal imaging: quantitative comparison of two different T1-weighted gradient echo sequences: initial observations

Ramalho, M., AlObaidy, M., Burke, L. M., Dale, B. M., Busireddy, K. K., Wong, T. Z., AlSugair, A. & Semelka, R. C. Aug 12 2015 In : Abdominal Imaging. 40, 6, p. 1426-1431 6 p.

Research output: Research - peer-reviewArticle

Hepatocellular Carcinoma
Respiration
Students
Liver
Population
1 Citations

MR–PET evaluation of 1-month post-ablation therapy for hepatocellular carcinoma: preliminary observations

Ramalho, M., AlObaidy, M., Burke, L. M., Dale, B. M., Gerber, D. A., Wong, T. Z. & Semelka, R. C. Aug 12 2015 In : Abdominal Imaging. 40, 6, p. 1405-1414 10 p.

Research output: Research - peer-reviewArticle

Hepatocellular Carcinoma
Therapeutics
Residual Neoplasm
Nonparametric Statistics
Population
15 Citations

Prospective cohort study of nephrogenic systemic fibrosis in patients with stage 3-5 chronic kidney disease undergoing mri with injected gadobenate dimeglumine or gadoteridol

Soulez, G., Bloomgarden, D. C., Rofsky, N. M., Smith, M. P., Abujudeh, H. H., Morgan, D. E., Lichtenstein, R. J., Schiebler, M. L., Wippold, F. J., Russo, C., Kuhn, M. J., Mennitt, K. W., Maki, J. H., Stolpen, A., Liou, J., Semelka, R. C., Kirchin, M. A., Shen, N., Pirovano, G. & Spinazzi, A. Sep 1 2015 In : American Journal of Roentgenology. 205, 3, p. 469-478 10 p.

Research output: Research - peer-reviewArticle

Nephrogenic Fibrosing Dermopathy
Chronic Renal Insufficiency
Cohort Studies
Prospective Studies
gadobenic acid
3 Citations

Quantitative and qualitative comparison of 0.025 mmol/kg gadobenate dimeglumine for abdominal MRI at 1.5 T and 3 T MRI in patients with low estimated glomerular filtration rate

Ramalho, M., Alobaidy, M., Busireddy, K. K., Altun, E., Liu, B. & Semelka, R. C. Jan 1 2015 In : European Journal of Radiology. 84, 1, p. 26-32 7 p.

Research output: Research - peer-reviewArticle

Glomerular Filtration Rate
gadobenic acid
Nonparametric Statistics
Aorta
Pancreas
2014
11 Citations

Combined chemical shift imaging with early dynamic serial gadolinium-enhanced MRI in the characterization of adrenal lesions

Rodacki, K., Ramalho, M., Dale, B. M., Battisti, S., De Campos, R. O. P., Giardino, A. & Semelka, R. C. 2014 In : American Journal of Roentgenology. 203, 1, p. 99-106 8 p.

Research output: Research - peer-reviewArticle

Gadolinium
Adenoma
Magnetic Resonance Imaging
Neoplasm Metastasis
Glandular and Epithelial Neoplasms
1 Citations
Respiration
Artifacts
Torso
Abdomen
Healthy Volunteers
2 Citations

Computed tomography utilization in the North Carolina Medicaid population with a focus on "high exposure" patients, 2007-2012.

Burke, L. M., Biola, H., Grey, L., Lahlou, R. M., Best, R. M. & Semelka, R. C. Jan 1 2014 In : North Carolina medical journal. 75, 2, p. 95-101 7 p.

Research output: Research - peer-reviewArticle

Medicaid
Tomography
Population
Neoplasms
Emergency Medical Services
4 Citations

Liver adenomatosis: Serial investigation on MRI

Srirattanapong, S., Angthong, W., Kim, B. S., Hayashi, P. H., Gerber, D. A., Woosley, J. T., Peacock, J., Ranatunga, A. & Semelka, R. C. 2014 In : Abdominal Imaging. 39, 2, p. 269-282 14 p.

Research output: Research - peer-reviewArticle

Liver
Neoplasms
Natural History
Hemorrhage
4 Citations

Mass-forming cholangiocarcinoma and adenocarcinoma of unknown primary: can they be distinguished on liver MRI?

Al Ansari, N., Kim, B. S., Srirattanapong, S., Semelka, C. T. A., Ramalho, M., Altun, E., Woosley, J. T., Calvo, B. & Semelka, R. C. Jan 1 2014 In : Abdominal Imaging. 39, 6, p. 1228-1240 13 p.

Research output: Research - peer-reviewArticle

Cholangiocarcinoma
Adenocarcinoma
Liver
Population
Radiologists
3 Citations

Modification of abdominal fat distribution after aromatase inhibitor therapy in breast cancer patients visualized using 3-D computed tomography volumetry

Battisti, S., Guida, F. M., Coppa, F., Vaccaro, D. M., Santini, D., Tonini, G., Zobel, B. B. & Semelka, R. C. Jan 1 2014 In : Clinical Breast Cancer. 14, 5, p. 365-370 6 p.

Research output: Research - peer-reviewArticle

Abdominal Fat
Aromatase Inhibitors
Intra-Abdominal Fat
Tomography
Breast Neoplasms
5 Citations

Perilesional enhancement of liver cavernous hemangiomas in magnetic resonance imaging

Sousa, M. S. C., Ramalho, M., Herédia, V., Matos, A. P., Palas, J., Jeon, Y. H., Afonso, D. & Semelka, R. C. Jan 1 2014 In : Abdominal Imaging. 39, 4, p. 722-730 9 p.

Research output: Research - peer-reviewArticle

Cavernous Hemangioma
Hemangioma
Magnetic Resonance Imaging
Liver
Research Ethics Committees
3 Citations

Post-contrast T1-weighted sequences in pediatric abdominal imaging: comparative analysis of three different sequences and imaging approach

Roque, A., Ramalho, M., AlObaidy, M., Herédia, V., Burke, L. M., de Campos, R. O. P. & Semelka, R. C. Sep 23 2014 In : Pediatric Radiology. 44, 10, p. 1258-1265 8 p.

Research output: Research - peer-reviewArticle

Pediatrics
Liver
Artifacts
Fats
Population
2 Citations

Secuencia de disparo único eco de gradiente en fase y fase opuesta con preparación de la magnetización: descripción y optimización de la técnica con equipo de 1,5 T

Ramalho, M., Herédia, V., De Campos, R. O. P., De Toni, M., Dale, B. M. & Semelka, R. C. Jan 1 2014 In : Radiologia. 56, 2, p. 136-147 12 p.

Research output: Research - peer-reviewArticle

Artifacts
Adenoma
Health Insurance Portability and Accountability Act
Research Ethics Committees
Fatty Liver
6 Citations

Trends in diagnostic CT among fee-for-service enrollees, 2000-2011

Hamra, G. B., Semelka, R. C., Burke, L. M. B., Pate, V. & Brookhart, M. A. Jan 1 2014 In : Journal of the American College of Radiology. 11, 2, p. 125-130 6 p.

Research output: Research - peer-reviewArticle

Fee-for-Service Plans
Spine
Body Regions
Pelvis
Abdomen
12 Citations

Value of MRI of the hand and the wrist in evaluation of bone age: Preliminary results

Tomei, E., Sartori, A., Nissman, D., Al Ansari, N., Battisti, S., Rubini, A., Stagnitti, A., Martino, M., Marini, M., Barbato, E. & Semelka, R. C. 2014 In : Journal of Magnetic Resonance Imaging. 39, 5, p. 1198-1205 8 p.

Research output: Research - peer-reviewArticle

Wrist
Hand
Bone and Bones
Osteogenesis
Cartilage

With "big data" comes big responsibility: outreach to North Carolina Medicaid patients with 10 or more computed tomography scans in 12 months.

Biola, H., Best, R. M., Lahlou, R. M., Burke, L. M., Dewar, C., Jackson, C. T., Broder, J., Grey, L., Semelka, R. C. & Dobson, A. Jan 1 2014 In : North Carolina medical journal. 75, 2, p. 102-109 8 p.

Research output: Research - peer-reviewArticle

Medicaid
Tomography
Population
Neoplasms
Ionizing Radiation
2013
4 Citations

Enhancement of liver and pancreas on late hepatic arterial phase Imaging: Quantitative comparison among multiple gadolinium-based contrast agents at 1.5 tesla MRI

Kim, M. J., Kim, S. H., Kim, H. J., Kim, B. S., Hernandes, M. & Semelka, R. C. Jul 1 2013 In : Journal of Magnetic Resonance Imaging. 38, 1, p. 102-108 7 p.

Research output: Research - peer-reviewArticle

Gadolinium
Contrast Media
Pancreas
Liver
gadobutrol
12 Citations
Contrast Media
Pancreas
Hepatocytes
Liver
gadolinium ethoxybenzyl DTPA
19 Citations

Free breathing three-dimensional gradient echo-sequence with radial data sampling (radial 3D-GRE) examination of the pancreas: Comparison with standard 3D-GRE volumetric interpolated breathhold examination (VIBE)

Bamrungchart, S., Tantaway, E. M., Midia, E. C., Hernandes, M. A., Srirattanapong, S., Dale, B. M. & Semelka, R. C. Dec 2013 In : Journal of Magnetic Resonance Imaging. 38, 6, p. 1572-1577 6 p.

Research output: Research - peer-reviewArticle

Pancreas
Respiration
Artifacts
Pancreatic Diseases
Abdomen
6 Citations

Hepatic sarcoidosis: MR appearances in patients with chronic liver disease

Ferreira, A., Ramalho, M., de Campos, R. O. P., Heredia, V., Roque, A., Vaidean, G. & Semelka, R. C. Apr 1 2013 In : Magnetic Resonance Imaging. 31, 3, p. 432-438 7 p.

Research output: Research - peer-reviewArticle

Sarcoidosis
Liver Diseases
Chronic Disease
Liver
Atrophy
9 Citations
Gadolinium
Contrast Media
gadobutrol
gadobenic acid
Image quality
3 Citations

Outcomes of patients with elevated a-fetoprotein level and initial negative findings at MR imaging

Kim, B. S., Hayashi, P. H., Kim, S. H., Angthong, W., Srirattanapong, S., Woosley, J. T. & Semelka, R. C. Jul 2013 In : Radiology. 268, 1, p. 109-119 11 p.

Research output: Research - peer-reviewArticle

Fetal Proteins
Magnetic Resonance Imaging
Magnetic Resonance Spectroscopy
Liver
Serum

Post-locoregional therapy MRI evaluation of malignant liver lesions

Santagostino, I., Al, M. O., Ramalho, M., Shin, K. S., Busireddy, K. K. R. & Semelka, R. C. Jan 1 2013 In : Current Cancer Therapy Reviews. 9, 3, p. 173-180 8 p.

Research output: Research - peer-reviewArticle

Liver
Therapeutics
Neoplasms
Cryotherapy
Laser Therapy
2012
4 Citations

A novel tool for user-friendly estimation of natural, diagnostic and professional radiation risk: Radio-Risk software

Carpeggiani, C., Paterni, M., Caramella, D., Vano, E., Semelka, R. C. & Picano, E. Nov 1 2012 In : European Journal of Radiology. 81, 11, p. 3563-3567 5 p.

Research output: Research - peer-reviewArticle

Radio
Software
Radiation
Neoplasms
Thorax