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Click here or scroll down to respond to this candidate Candidate's Name , M.D.
PERSONAL DATA :
Address: Street Address Goshen Road
Gaithersburg, MD Street Address
Phone: US: Street Address PHONE NUMBER AVAILABLE, PHONE NUMBER AVAILABLE
Email: EMAIL AVAILABLE
Status: Dual U.S. citizenship and Egyptian citizenship
CAREER PROFILE
Over 20 years of experience as a diagnostic radiologist specializing in MRI, CT, Ultrasound including abdominal pelvic,
ob-gyn, breast, thyroid, prostate, trauma, Doppler ultrasound
Specialized training and experience in MRI and CT at the University of Vienna (Austria), University of North Carolina
(U.S.A.), and the National Institutes of Health (Bethesda, Maryland, U.S.A.)
Medical and specialist degrees from the School of Medicine, Ain Shams University, Cairo, Egypt,
Postgraduate fellowships from University of Vienna, Austria and University of North Carolina, Chapel Hill, NC
(USA), National Institutes of Health (USA).
Clinical research and over 30 papers and two book chapters in field of MRI at the University of North Carolina and the
U.S.A.s National Institutes of Health.
Mentors included Dr. Richard Semelka, vice-chair of the University of North Carolina, author of over 300 papers and
over ten books and Dr. Peter Choyke, Director of Molecular Imaging, renowned in the USA's National Cancer Institute
and work in nephrology and VHL disease, author of several books.
Current Egyptian Medical Licensure
Current Albanian Medical Licensure
Previous Libyan Medical Licensure, Saudi Arabian Medical Licensure
Bilingual: English and Arabic.
EDUCATIONAL HISTORY
1975-1981 M.D. School of Medicine, Ain Shams University, Cairo, Egypt
1985-1989 M.S. Master Degree of Diagnostic Radiology, School of Medicine, Ain Shams University,
Cairo, Egypt
POST DOCTORAL TRAINING
Internship, Residency, & Fellowships
1982-1984 Internship in Ain Shams University Hospital, Cairo, Egypt.
1985-1990 Senior Resident in Radiology Department, Al Mukatom Social-Insurance
Hospital Cairo, Egypt
1996 Fellowship in Diagnostic Radiology from University of Vienna, Austria
1996-1999 Fellowship in Diagnostic Radiology from University of North Carolina, USA
1999-2002 ISTP Fellowship in Diagnostic Radiology from the National Institutes of Health, USA
Career
2014-present
Job Title: Chief Consultant Radiologist at German Hospital in Tirana, Albania
( www.spitaligjerman.com )
Duties & Accomplishments:
Consultant and chief radiologist
Evaluate and report US, MR, CT, X-Ray (musculoskeletal, brain, spinal, abdominal,
pelvic, chest, bone and joint) cases
Perform and report Color-Doppler
Participates in daily conferences on radiology cases
Duties include emergency center cases
2012-2014
Job Title: Department Chairman and Chief Consultant Radiologist (St. James Hospital Group Malta
and Libya)
Duties & Accomplishments:
Consultant and chief radiologist St. James Hospital
Evaluate and report US, MR, CT, X-Ray (musculoskeletal, brain, spinal, abdominal,
pelvic, chest, bone and joint) cases
Participates in daily conferences on radiology cases
Duties include emergency/trauma cases 24-7
Reporting and diagnosing ultrasound cases in areas of abdominal, pelvic, pediatric, ob-
gyn, thyroid, breast, scrotal, superficial parts ultrasound,
Perform and report Color-Doppler
Employer's Name and Address:
St. James Hospital Group
George Borg Olivier Street
Sliema SLM 1807, Malta
2010- 2012
Job Title: Department Chairman and Chief Radiologist (Ministry of Health, KSA)
Duties & Accomplishments:
Chief radiologist at Ahad Rafidah Hospital
Evaluate and report MR (musculoskeletal, brain and spinal) and CT (abdominal, pelvic,
chest, bone and joint) cases
Participated in daily conference on radiology cases
Duties include emergency and trauma center ultrasound cases 24-7
Reporting and diagnosing ultrasound/ CT
Perform and report Color-Doppler
Presentations: Seminars and posters at Radiological International Professional meetings
Employer's Name and Address:
Ministry of Health
Asir Province
Abha, KSA
2002-2009
Job Title: Teleradiologist consultant
Duties & Accomplishments:
Evaluate and report MRI/CT/US/Color Doppler
Independent clinical radiologist consultant for teleradiology studies including analytic
reading and recommendation
Employer's Name and Address:
Maryland Radiology Online
1999-2002
Job Title: ISTP Fellow/ Clinical Radiologist
Clinical Center
Department of Radiology
National Institutes of Health
Bethesda, Maryland
Duties and Accom[lishments:
Clinical Duties: Reporting and performing MRI studies: MR angiography, MRCP,
MR spine and brain, musculoskeletal, abdominal and pelvic MRI, MR mammography, MR
head and neck, MR chest, cardiac MRI
Co-investigator in multicenter, randomized, double-blind clinical studies with
internationally renowned investigators.
Author and co-author of several novel procedures and protocols
1996-1999
Job Title: Clinical Radiologist in the Magnetic Resonance Center
Radiology Department
School of Medicine
University of North Carolina
Chapel Hill, North Carolina
Duties and Accomplishments:
Clinical Duties: Reporting and performing all X-Rays exams, CT scan, MRI studies:
MR angiography, MRCP, MR spine and brain, musculoskeletal, abdominal and pelvic MRI, MR
mammography, MR head and neck, MR chest, cardiac MRI
Co-investigator in multicenter, randomized, double-blind clinical studies to evaluate the
safety, tolerability and efficacy of MR imaging reagents for Mallinckrodt Medical Company,
clinical trial studies of Feridex I.V. (Ferumoxides injectable solution) in patients with hepatic
tumors for Advanced Magnetic and Berlex Laboratories and Teslascan; Omniscan studies for
the evaluation of focal liver lesions for Nycomed Amersham Imaging
Co-author of over 28 journal articles (eight first-author publications) along with three
book chapters.
Employer's Name and Address:
Radiology Department, School of Medicine University of North Carolina
Chapel Hill, NC 27599
Supervisors: Dr. Richard C.Semelka and Dr. Joseph KT Lee
1996
Job Title: Post-graduate Medical Fellowship
Duties and Accomplishments:
Clinical Diagnostic radiologist
Further training in pelvic, abdominal, musculoskeletal, brain, spinal MRI studies and MR
mammography
Employer:
Department of Radiology
School of Medicine
University of Vienna
Vienna, Austria
Supervisors: G. Mostbeck,M.D.; G. Schneidler,M.D.; H. Imhof, M.D.
1995-1996
Job Title: Clinical Radiologist
Duties and Accomplishments:
Visiting radiologist
CT, MRI, conventional XRAY, Ultrasound, small and large bowel studies
Employer's Name and Address
Military Armed Forces Hospital, Riyadh,
Saudi Arabia (KSA)
Supervisor: Dr. Yousef Boshra,FRCR
1990-1995
Job Title: Clinical Radiologist
Duties and Accomplishments:
Attending Clinical Radiologist
Reported all cases: Ultrasound, CT, conventional XRAY, MRI, small and large bowel
studies
Employer's Name and Address
Department of Radiology, Oleya
Medical Center
Riyadh, Saudi Arabia (KSA)
Supervisor: Dr. K. Saud
MEMBERSHIPS
Radiological Society of North America, RSNA (45606)
International Society of Magnetic Resonance in Medicine, ISMRM
JOB-RELATED SKILLS:
Languages: Arabic, English, French
Computer Skills: Word processing: WORD, WordPerfect, Excel, PowerPoint, CorelDraw,
Adobe Photoshop, 3-D imaging software, Real-time imaging and movies, Virtual Imaging,
Statistical programs (SAS); HTML and XML programming
Photography: Experience with traditional, digital, video equipment, image processing.
USMLE Step 2 (1997)
PUBLICATIONS:
- 2005 (17 NOV). JMRI. MRI evaluation of acute renal trauma. Marcos HB, Noone TC, Semelka
RC.
- 2003; 69-78: Renal Disease: Techniques and Protocols (Methods in Molecular Medicine).
Michael S. Goligorsky (Editor). Functional Studies of the Kidney with Magnetic Resonance
Imaging. (Book Chapter) Candidate's Name , Yantian Zhang, Peter L. Choyke.
- 2002; 225:751-8. Radiology. Neuroendocrine tumors of the pancreas in von Hippel-Lindau
disease: spectrum of appearances at CT and MR imaging with histopathologic comparison.
Marcos HB, Libutti SK, Alexander HR, Lubensky IA, Bartlett DL, Walther MM, et al. Radiology
2002; 225:751-8.
-2001 Dec;20(12):1411-21. IEEE Trans Med Imaging. Vessel surface reconstruction with a tubular
deformable model. Yim PJ, Cebral JJ, Mullick R, Marcos HB, Choyke PL. Vessel surface
reconstruction with a tubular deformable model.
- 2001 Aug;12(4):301-8. Review. Top Magn Reson Imaging. Dynamic contrast- enhanced
magnetic resonance imaging in oncology. Knopp MV, Giesel FL, Marcos H, von Tengg-Kobligk H,
Choyke P.
- 2001 Aug;12(4):283-99. Review. Top Magn Reson Imaging. Contrast-enhanced magnetic
resonance angiography: technical considerations for optimized clinical implementation . Ho VB, Foo
TK, Czum JM, Marcos H, Choyke PL, Knopp MV.
- 2001 Feb;176(2):465- 70. AJR Am J Roentgen. Hepatic MR Angiography: a multiobserver
comparison of visualization methods. Choyke PL, Yim P, Marcos HB, Ho VB, Mullick R, Summers
RM.
- 2001, 219(3):835-841. Radiology. High-spatial-resolution multistation MR imaging of lower-
extremity peripheral vasculature with segmented volume acquisition: feasibility study . Foo TKF, Ho
VB, Hood MN, Marcos HB, Hess SL, Choyke PL.
- 2001. Radiology. Neuroendocrine tumors of the pancreas in von Hippel-Lindau (VHL)
diseases: spectrum of appearances on CT and MRI with histopathological correlation . Marcos HB,
Libutti SK, Alexander RH, et al.
- 2001 Nov. Abdominal and Pelvic MRI (Wiley). Semelka RC, Marcos HB. [Book]
- 2001 Mar; 13(3):385-391. J Magn Reson Imaging. Chronic hepatitis: correlation of early
patchy and delayed linear enhancement patterns on gadolinium-enhanced MR images with
histopathology. Semelka RC, Hussain SM, Marcos HB, Woosley JT.
- 2000. Abdominal and Pelvic MRI (Springer). A.Heuck and M.Reiser (Eds.). Spleen : pp. 51-
58. Non-endocrine tumors of the Pancreas: pp. 117-124. Medical Radiology-Diagnostic
Imaging. Semelka RC, Marcos HB. [Book chapters]
- 2000 Sep; 20(5):450-455. Review. Seminars in Nephrology. MR Angiography of the kidneys.
Marcos HB, Choyke PL.
- 2000 Aug;12(2):297-305. J Magn Reson Imaging. Colon diseases: MR evaluation using
combined T2-weighted single shot echo train spin echo and gadolinium-enhanced spoiled gradient
echo sequences. Chung JJ, Semelka RC, Martin DR, Marcos HB.
- 2000 (Apr); 215(1): 89-94. Radiology. Peripheral enhancement surrounding liver metastases:
MR-histopathologic correlation-initial observation. Semelka RC, Hussain SM, Marcos HB,
Woosley JT.
- 2000 (Apr) 18(3): 263-268. Magn Reson Imaging. Evaluation of Crohn's disease using Half-
Fourier RARE and gadolinium-enhanced spoiled gradient echo sequences-initial results. Marcos
HB, Semelka RC.
- 2000 (Jan); 11(1): 51-55. J Magn Reson Imaging. Polyposis syndrome of the gastrointestinal
tract: MR findings. Semelka RC, Marcos HB.
- 1999; 213: 86-91. Radiology. Liver metastases: comparison of current MR technique and spiral
CT during arterial portography for detection in 20 surgically staged cases . Semelka RC, Cance
WG, Marcos HB, Mauro MA.
- 1999;17(6): 869-880. Magn Reson Imaging. MRI of normal and abnormal duodenum using the
Half Fourier single shot RARE and gadolinium- enhanced spoiled gradient echo sequences .
Marcos HB, Semelka RC, Noone TC, Woosley JT , Lee JKT.
- 1999; 10(2):196-201. J Magn Reson Imaging. Biliary hamartomas: solitary and multiple lesions
shown on current MR techniques including gadolinium enhancement. Semelka RC, Hussain SM,
Marcos HB, Woosley JT.
- 1999; 9(2): 362-365. J Magn Reson Imaging. Incidental detection of acute myocardial infarction
during routine performance of three- dimensional dynamic MR angiographic study with dynamic
injection of gadolinium. Semelka RC, Marcos HB, Kelekis NL, Faber GH.
- 1999(Dec); 10(6): 950-960. J Magn Reson Imaging. Stomach diseases: MR evaluation using
combined T2-weighted Half-Fourier RARE and gadolinium-enhanced spoiled gradient echo
sequences. Marcos HB, Semelka RC.
- 1998; 208(2): 525-528. Radiology. Intraperitoneal abscesses: diagnostic accuracy of and
appearances on MR imaging. Noone TC, Semelka RC, Worawattanukul S, Marcos HB.
- 1998; 208(3): 591-595. Radiology. Gastric stromal sarcomas: correlation of MR imaging and
histopathologic findings in nine patients. Hasegawa S, Semelka RC, Noone TC Woosely JT,
Marcos HB, Kenney PJ, Seigelman.
- 1998; 170 (6):1457-1463. AJR. MR imaging of the normal and abnormal small bowel using the
HASTE sequence. Lee JKT, Marcos HB, Semelka RC.
- 1998; 8(4): 989-990. J Magn Reson Imaging. MRI evaluation of acute renal trauma. Marcos
HB, Noone TC, Semelka RC.
- 1998; 16(3): 343-346. Magn Reson Imaging. Metastatic gastric leiomyoblastoma: a case report.
Sofka CM, Semelka RC, M.D, Marcos HB, Calvo Bf, Woosley JT.
- 1997; 205(2): 493-496. Radiology. Normal placenta: gadolinium-enhanced dynamic MR
imaging. Marcos HB, Semelka RC, Worawattanakul S.
- 1997; 15(7): 873-876. Magn Reson Imaging. Abdominal granulocytic sarcomas: demonstration
by MRI. Marcos HB, Semelka RC, Woosley JT.
- 1997;15(9): 1095-1098. Magn Reson Imaging. Adult intussusception: demonstration by current
MR techniques. Marcos HB, Semelka RC, Worawattanakul S.
- 1997; 15(10): 1205-1208. Magn Reson Imaging. MR imaging of metastatic pancreatic VIPoma:
a case report. Sofka CM, Semelka RC, Marcos HB, Woosley JT.
PRESENTATIONS AND ABSTRACTS
July 2010: Ahad Rafidah Hospital, Saudi Arabia. Case Studies: Ultrasound Uses in
Medicine (Lecture). Marcos H.
May 24-30, 2002: Tenth Annual Meeting of the International Society for Magnetic Resonance in
Medicine, Honolulu, Hawaii, USA, :
(1) --Continuously Acquired Moving Table MRI: A Method for Rapid Whole Body Scanning.
Choyke, P, Ho V, Marcos H, Hood M, Hess, S, Foo T.
(2) -- Detection and Localization of Proteinuria by Dynamic Contrast Enhanced MRI. Zhang Y,
Choyke P, Lu H, Marcos H, Mobaraki H, Lizak M, Despres D, Kopp J.
(3) -- MR Venography With 3-D Fiedsta: A New Approach to Renal Vein Thrombosis. Marcos H,
Ho V, Foo T, Hood M, Choyke P.
November 25-30, 2001: RSNA 87th Scientific Assembly and Annual Meeting:
(1) Marcos HB, Libutti SK, Alexander RH, et al. Neuroendocrine tumors of the pancreas in von
Hippel-Lindau (VHL) diseases: spectrum of appearances on CT and MRI with histopathological
correlation.
(2) Marcos HB, Wilcox C, Chen C, Yim PJ, Jones S, Choyke PL. MR renography and angiography
with captopril in assessment of renovascular hypertension: comparison with radionuclide captopril
renography
(3) Knopp MV, Choyke PL, Marcos HB, Giesel F, Libutti S, Yim PJ, et al. How to implement an
MRI service for functional tumor imaging. -- Yim PJ, Cebral J, Ho VB, Marcos HB, et al.
Computational Modeling of blood flow patterns from magnetic resonance imaging.
(4) Knopp MV, Choyke PL, Marcos HB, Giesel F, Wise B, Swain S, et al. Monitoring of breast
cancer therapy with MRI: A clinical review of indications, findings, and interpretation.
April 20-27, 2001: Ninth Annual Meeting of the International Society for Magnetic Resonance in
Medicine, Glasgow, Scotland, UK:
(1) Marcos HB, Choyke PL, Ho VB,, Hood, Foo TKF. Automated Real-time Multi-station
Projection MR Angiography ('Bolus Prep').
(2) Marcos HB, Ho VB, Hood MN, Foo TKF, Choyke PL. 3D Steady State Free Precession (3D-
FIESTA) Imaging of The Pancreaticobiliary Ductal System.
(3) Choyke PL, Marcos HB, Ho VB, Hood MN, Foo TKF. Shoot and Scoot": A method for
improving temporal and Spatial resolution of multistation peripheral MR Angiography.
(4) Foo TKF, Ho VB, Marcos HB, Hood MN, Choyke PL. MR Angiography using Steady State
Free Precession.
April 1-7, 2000: Eighth Annual Meeting of the International Society for Magnetic Resonance in
Medicine, Denver, CO. Marcos HB:
(1) -- Use of Dynamic Enhanced Magnetic Resonance Imaging (DEMRI) to Assess the Effects of
anti-angiogenic Therapy on Tumour Associated Vasculature.
(2) -- Stomach Diseases: MR Evaluation Using Combined T2-Weighted Single Shot Echo Train
Spin Echo and Gadolinium-Enhanced Spoiled Gradient Echo Sequences.
(3) -- Skeletonized Maximum Intensity Projections for Runoff Vessels: A Method of Displaying
Magnetic Resonance Angiograms.
(4) -- High-Resolution Gd-Enhanced 3D Elliptical Centric MRA of the Infrapopliteal Arteries:
Lessons for Improving Bolus-Chase Multi-Station Peripheral MRA.
(5) -- Dual VENC Phase Contrast MR Angiography for Arterial and Venous Discrimination.
October 11, 2000: NIH Research Festival:
Marcos HB, Choyke PL, Ho VB, Hood MN, Foo TKF. Shoot and Scoot: Method for High
Resolution Multi-Station Imaging of the Peripheral Vasculature Using A Single Contrast Injection
February 12-17, 2000: SPIE's International Symposium on Medical Imaging 2000, San Diego
California: Yim PJ, Mullick R, Summers RM, Marcos HB, Cebral JR, Lohner R, Choyke PL.
Measurement of stenosis from magnetic resonance angiography using vessel skeletons.
December 1999: RSNA 85th Scientific Assembly and Annual Meeting: Hussain, SM, Semelka, RC,
Marcos, HB, Woosley JT. Chronic Hepatitis: Correlation of Enhancement Patterns on Dynamic
Gadolinium-enhanced MRI Imaging and Histopathology.
March 1999: European Congress of Radiology: Semelka RC, Cance WG, Marcos HB, Mauro
MA. Liver metastases: comparison of current MR technique and spiral CT during arterial
portography for detection in 20 surgically staged cases.
PROTOCOLS
- Assessment of Renal Artery Stenosis and Renovascular Hypertension by Contrast
Enhanced Magnetic Resonance Imaging: A Pilot Study. Investigators: Peter L. Choyke,
M.D. Candidate's Name , M.D, Christopher S. Wilcox, M.D, PhD
- A Comparison of Contrast Enhanced Magnetic Resonance Angiography (MRA) and
Conventional Angiography in the Diagnosis of Atherosclerotic Disease: A pilot study.
Investigators: Peter L. Choyke, M.D. Candidate's Name , M.D, Wayne Olan, M.D., Bradley
Dick, M.D., Andrew Arai, M.D.
CONTINUING EDUCATION:
-Certificate of Cardiopulmonary Resuscitation. Saudi Commission for Health Specialties. 2010.
- STAT 500: Statistics for Biomedical Scientists (Professor Hirsch: FAES/NIH). Fall, 1999.
- Introduction to the Principle and Practice of Clinical Research, Fall 1999.
- MR Angiography: Practical Protocols and Techniques, Spring 2000
- Using Animals in Intramural Research: Guidelines for Animal Users, Fall 2000
- Grant writing course for NCI Grants: presented by Barbara Croft, Ph.D., Program Director of -
- Diagnostic Imaging Program, Division of Cancer Treatment and Diagnosis, NCI. Fall 2000
- RSNA: Grant Writing Course: Crystal City Mariott, Fall 1999.
- Introduction to IDL. January, 2001
- Powerpoint Presentation (CIT/NIH) Spring, 2000
- Using Animals in Intramural Research: Guidelines for Animal Users. September, 2000.
- Animal Safety Course. NMR Center/NIH Animal Facilities. April, 2001.
REFERENCES
Provided upon request.
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