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2018
1 Citations

Intravenous Calcium-/Zinc-Diethylene Triamine Penta-Acetic Acid in Patients with Presumed Gadolinium Deposition Disease: A Preliminary Report on 25 Patients

Semelka, R. C., Ramalho, M., Jay, M., Hickey, L. & Hickey, J., Jun 1 2018, In : Investigative Radiology. 53, 6, p. 373-379 7 p.

Research output: Contribution to journalArticle

Rubiaceae
Gadolinium
Acetic Acid
Zinc
Calcium

MRI features of primary rare malignancies of the liver: A report from four university centres

Semelka, R. C., Nimojan, N., Chandana, S., Ramalho, M., Palmer, S. L., DeMulder, D., Parada Villavicencio, C., Woosley, J., Garon, B. L., Jha, R. C., Miller, F. H. & Altun, E., Apr 1 2018, In : European radiology. 28, 4, p. 1529-1539 11 p.

Research output: Contribution to journalArticle

Sarcoma
Lymphoma
Magnetic Resonance Imaging
Liver
Hemangiosarcoma

Multiple focal nodular hyperplasia: MRI features

Busireddy, K. K., Ramalho, M., AlObaidy, M., Matos, A. P., Burke, L. M., Dale, B. M. & Semelka, R. C., May 1 2018, In : Clinical Imaging. 49, p. 89-96 8 p.

Research output: Contribution to journalArticle

Focal Nodular Hyperplasia
Medical imaging
Diagnostic Imaging
Magnetic resonance imaging
Magnetic Resonance Imaging
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: Contribution to journalArticle

Adenoma
Magnetic Resonance Imaging
Sensitivity and Specificity
ROC Curve
Students

Comparação de aquisições cartesiana e radial nas sequências short tau inversion recovery (STIR) na RM de mama

Santucci, D., Lee, S. S., Hartman, H., Walgampaya, S., AlObaidy, M., Ramalho, M., Dale, B. M. & Semelka, R. C., Jul 1 2017, In : Radiologia Brasileira. 50, 4, p. 216-223 8 p.

Research output: Contribution to journalArticle

Sequence Inversion
Artifacts
Breast
Magnetic Resonance Imaging
Thoracic Wall

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: Contribution to journalArticle

Health Insurance Portability and Accountability Act
Magnets
Abdominal Aorta
Informed Consent
Cross-Over Studies
7 Citations

Gadolinium Retention and Toxicity—An Update

Ramalho, M., Ramalho, J., Burke, L. M. & Semelka, R. C., May 1 2017, In : Advances in Chronic Kidney Disease. 24, 3, p. 138-146 9 p.

Research output: Contribution to journalReview article

Gadolinium
Nephrogenic Fibrosing Dermopathy
Contrast Media
Brain
Signs and Symptoms
6 Citations

Liver imaging reporting and data system category 4 observations in MRI: Risk factors predicting upgrade to category 5

Sofue, K., Burke, L. M. B., Nilmini, V., Alagiyawanna, M., Muir, A. J., Choudhury, K. R., Jaffe, T. A., Semelka, R. C. & Bashir, M. R., Sep 1 2017, In : Journal of Magnetic Resonance Imaging. 46, 3, p. 783-792 10 p.

Research output: Contribution to journalArticle

Information Systems
Hepatocellular Carcinoma
Magnetic Resonance Imaging
Liver
Hepatitis C
4 Citations

Ressonância magnética do fígado cirrótico: Diagnóstico de carcinoma hepatocelular e avaliação da resposta ao tratamento –Parte 1

Ramalho, M., Matos, A. P., Alobaidy, M., Velloni, F., Altun, E. & Semelka, R. C., Jan 1 2017, In : Radiologia Brasileira. 50, 1, p. 38-47 10 p.

Research output: Contribution to journalReview article

Liver Cirrhosis
Hepatocellular Carcinoma
Magnetic Resonance Imaging
Liver
Liver Diseases
3 Citations

Ressonância magnética do fígado cirrótico: Diagnóstico de carcinoma hepatocelular e avaliação da resposta ao tratamento – Parte 2

Ramalho, M., Matos, A. P., Alobaidy, M., Velloni, F., Altun, E. & Semelka, R. C., Jan 1 2017, In : Radiologia Brasileira. 50, 2, p. 115-125 11 p.

Research output: Contribution to journalReview article

Image Enhancement
Liver Cirrhosis
Contrast Media
Hepatocellular Carcinoma
Magnetic Resonance Imaging
2 Citations
Gadolinium
Contrast Media
gadodiamide
Association reactions
Serum
2016
1 Citations

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: Contribution to journalArticle

Hepatocellular Carcinoma
Neoplasm Metastasis
Bone and Bones
Chronic Hepatitis C
Virus Diseases
2 Citations

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: Contribution to journalArticle

Gadolinium
Chelation Therapy
Chelation
Therapeutics
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: Contribution to journalArticle

Population Surveillance
Liver Neoplasms
Liver Cirrhosis
Hepatocellular Carcinoma
Magnetic Resonance Imaging
87 Citations

Gadolinium-based contrast agent accumulation and toxicity: An update

Ramalho, J., Semelka, R. C., Ramalho, M., Nunes, R. H., AlObaidy, M. & Castillo, M., Jul 1 2016, In : American Journal of Neuroradiology. 37, 7, p. 1192-1198 7 p.

Research output: Contribution to journalReview article

Gadolinium
Contrast Media
Nephrogenic Fibrosing Dermopathy
Renal Insufficiency
Kidney
16 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: Contribution to journalArticle

Gadolinium
Contrast Media
Toxicity
gadodiamide
Pain
23 Citations

Gadolinium Deposition in Humans: When Did We Learn That Gadolinium Was Deposited in Vivo?

Huckle, J. E., Altun, E., Jay, M. & Semelka, R. C., Apr 1 2016, In : Investigative Radiology. 51, 4, p. 236-240 5 p.

Research output: Contribution to journalReview article

Gadolinium
Contrast Media
Animal Models
Kidney
Cerebellar Nuclei
21 Citations

Gadolinium in humans: A family of disorders

Semelka, R. C., Ramalho, M., AlObaidy, M. & Ramalho, J., Aug 1 2016, In : American Journal of Roentgenology. 207, 2, p. 229-233 5 p.

Research output: Contribution to journalReview article

Gadolinium
Nephrogenic Fibrosing Dermopathy
Kidney
Health
Brain
15 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: Contribution to journalArticle

Gadolinium
Toxicity
Therapeutics
Contrast Media
Brain
6 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: Contribution to journalArticle

Epithelioid Hemangioendothelioma
Liver
Magnetic Resonance Imaging
Magnetic Resonance Spectroscopy
Databases
1 Citations

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: Contribution to journalArticle

Hemangioma
Liver
Incidence
Population
4 Citations

Malignant uterine disease with concurrent myometrial contraction at mri: A possible source of overstaging

Manikkavasakar, S., Ramachandram, A., Ramalho, M., Matos, A. P. & Semelka, R. C., Sep 1 2016, In : Radiologia Brasileira. 49, 5, p. 342-343 2 p.

Research output: Contribution to journalLetter

Uterine Diseases
Uterine Contraction

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: Contribution to journalArticle

Acute Pain
Abdominal Pain
Sensitivity and Specificity
10 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: Contribution to journalArticle

Natural History
Information Systems
Health Insurance Portability and Accountability Act
Research Ethics Committees
Liver
16 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: Contribution to journalArticle

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: Contribution to journalArticle

Developed Countries
Developing Countries
Portugal
Saudi Arabia
Radiology

Radiologist Incomes: A Global Perspective

Ramalho, M., AlObaidy, M., Reinhold, C., Vogl, T., Breen, D., Leiner, T. & Semelka, R. C., Nov 1 2016, In : Current Radiology Reports. 4, 11, 58

Research output: Contribution to journalReview article

Radiology
Gross Domestic Product
Salaries and Fringe Benefits
Motivation
Economics

Radiologist Incomes: A Global Perspective

Ramalho, M., AlObaidy, M., Reinhold, C., Vogl, T., Breen, D., Leiner, T. & Semelka, R. C., Nov 1 2016, In : Current Radiology Reports. 4, 11, 58

Research output: Contribution to journalReview article

Salaries and Fringe Benefits
Radiology
Gross Domestic Product
Motivation
Economics
25 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: Contribution to journalArticle

Gadolinium
Toxicity
Contrast Media
Bone
Health Insurance Portability and Accountability Act
25 Citations

Signal intensity change on unenhanced T1-weighted images in dentate nucleus following gadobenate dimeglumine in patients with and without previous multiple administrations of gadodiamide

Ramalho, J., Semelka, R. C., AlObaidy, M., Ramalho, M., Nunes, R. H. & Castillo, M., Nov 1 2016, In : European radiology. 26, 11, p. 4080-4088 9 p.

Research output: Contribution to journalArticle

gadodiamide
Cerebellar Nuclei
Gadolinium
Contrast Media
gadobenic acid
3 Citations

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

Semelka, R. C., Ramalho, M. & Jay, M., Dec 1 2016, In : Magnetic Resonance Imaging. 34, 10, p. 1399-1401 3 p.

Research output: Contribution to journalArticle

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: Contribution to journalArticle

Respiration
Magnetic Resonance Spectroscopy
Pediatrics
Image Enhancement
Injections
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: Contribution to journalArticle

Prodrugs
Esters
Powders
Solubility
Acids
18 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: Contribution to journalArticle

gadodiamide
Cerebellar Nuclei
Gadolinium
Nonparametric Statistics
Research
6 Citations

Technical aspects of MRI signal change quantification after gadolinium-based contrast agents' administration

Ramalho, J., Ramalho, M., AlObaidy, M. & Semelka, R. C., Dec 1 2016, In : Magnetic Resonance Imaging. 34, 10, p. 1355-1358 4 p.

Research output: Contribution to journalArticle

Brain mapping
Image Enhancement
Contrast media
Brain Mapping
Gadolinium DTPA
2015
12 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: Contribution to journalArticle

Observer Variation
Wrist
Chronic Disease
Hand
Research Personnel
3 Citations

An overview of imaging techniques for liver metastases management

Matos, A. P., Altun, E., Ramalho, M., Velloni, F., AlObaidy, M. & Semelka, R. C., Sep 25 2015, In : Expert Review of Gastroenterology and Hepatology. 9, 12, p. 1561-1576 16 p.

Research output: Contribution to journalReview article

Neoplasm Metastasis
Liver
Ultrasonography
Tomography
Therapeutics

Benign solid liver lesions

Altun, E., El-Azzazi, M., Semelka, R. C. & Alobaidy, M., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 101-136 36 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Liver Cell Adenoma
Focal Nodular Hyperplasia
Angiomyolipoma
Mononuclear Phagocyte System
Liver

Cholangiocarcinoma

Altun, E., El-Azzazi, M., Semelka, R. C. & Ramalho, M., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 193-200 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Cholangiocarcinoma
Hepatocellular Carcinoma
Hepatic Tuberculosis
Neoplasms
Sclerosing Cholangitis

Chronic hepatitis and liver cirrhosis

Altun, E., El-Azzazi, M., Semelka, R. C. & Alobaidy, M., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 219-240 22 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Chronic Hepatitis
Liver Cirrhosis
Fibrosis
Gallbladder
Liver Diseases

Cystic diseases of the liver

Altun, E., El-Azzazi, M., Semelka, R. C. & Ramalho, M., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 73-100 28 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Caroli Disease
Cystic Kidney Diseases
Liver Diseases
Liver
Cysts
3 Citations

Debriefing the brief: It is time for the provision of informed consent before pediatric CT

Armao, D. M., Smith, J. K. & Semelka, R. C., Jan 1 2015, In : Radiology. 275, 2, p. 326-330 5 p.

Research output: Contribution to journalComment/debate

Radiation-Induced Neoplasms
Radiation Dosage
X Ray Computed Tomography
Informed Consent
Pediatrics
13 Citations

Focal liver lesions: Practical magnetic resonance imaging approach

Matos, A. P., Velloni, F., Ramalho, M., Alobaidy, M., Rajapaksha, A. & Semelka, R. C., Jan 1 2015, In : World Journal of Hepatology. 7, 16, p. 1987-2008 22 p.

Research output: Contribution to journalReview article

Magnetic Resonance Imaging
Liver
Contrast Media
Ionizing Radiation
Hepatocytes

Hepatic fat and iron deposition

Altun, E., El-Azzazi, M. & Semelka, R. C., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 241-254 14 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Iron
Fats
Magnetic Resonance Imaging
Liver Diseases
Liver

Hepatocellular carcinoma

Altun, E., El-Azzazi, M., Semelka, R. C. & Alobaidy, M., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 161-180 20 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hepatocellular Carcinoma
Fibrosis
Liver
Cholangiocarcinoma
Chronic Hepatitis B
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: Contribution to journalArticle

Feasibility Studies
Abdomen
Artifacts
Fats
Image Enhancement
112 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: Contribution to journalArticle

gadodiamide
Cerebellar Nuclei
Globus Pallidus
Gadolinium
Contrast Media

Infectious diseases of the liver

Altun, E., El-Azzazi, M. & Semelka, R. C., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 201-218 18 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Cholangitis
Echinococcosis
Portal Vein
Communicable Diseases
Liver Diseases

Inflammatory liver diseases

Altun, E., El-Azzazi, M. & Semelka, R. C., Apr 10 2015, Liver Imaging: MRI with CT Correlation. wiley, p. 255-266 12 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Autoimmune Hepatitis
Sclerosing Cholangitis
Biliary Liver Cirrhosis
Sarcoidosis
Liver Diseases
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: Contribution to journalArticle

Gadolinium
Population
Contrast Media
Liver
Vomiting