Biography

Certifications

American Board of Radiology, 07/2012

Education

Medical School
Instituto de Ciencias de La Salud - CES, Medellin, Colombia, 2003
Internship and Resident
Internal Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX , 2008
Resident
Diagnostic Radiology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 2012
Fellowship
Cardiothoracic Imaging, The University of Washington Medical Center, Seattle, WA, 2013

Research Information

**Faculty profiles will only highlight current information (the last three years). Please see the faculty’s CV for more information.

 

IRB Research Projects: Washington University Medical Center

1. Predicting Optimal fluoroscopic to angulation for percutaneous aortic valve replacement: a comparison of 3-D workstation versus 2-D workstation derived cross product.
Kicska G (Principal Investigator), Ocazionez D, Dicks DL.
2. Measuring accuracy of gated and non-gated magnetic resonance angiography of the pulmonary veins with CT angiography is a gold standard.
Kicska G (Principal Investigator), Ocazionez D.
3. Prone high-resolution CT: Diagnostic value in patients with diffuse lung disease.
Sukkasem W (Principal Investigator), Stern EJ, Kicska G, Ocazionez D, Edwards RM.

 

IRB Approved Research Projects: University of Texas Health Science Center at Houston

1. Early Feasibility Study of the CardiAQ™ Transcatheter Mitral Valve Implantation (TMVI) System 2013-05C Study. Trial Sponsor: Edwards Lifesciences.
2. A prospective, randomized, controlled, multi-center study to establish the safety and effectiveness of the SAPIEN 3 transcatheter heart valve in low risk patients requiring aortic valve replacement who have severe, calcific, aortic stenosis. Trial Sponsor: Edwards Lifesciences.
3. CT Imaging Features Predict Late Adverse Events in Acute Uncomplicated Stanford Type-B Aortic Dissection: Validation Study

Publications

Publication Information

**Faculty profiles will only highlight current information (the last three years). Please see the faculty’s CV for more information.

 

PUBLICATIONS

Refereed Original Article in Journals:

  1. Leiter Herrán F, Restrepo CS, Alvarez Gómez DI, Suby-Long T, Ocazionez D, Vargas D. Hamartomas from Head to Toe: an Imaging Overview. Br J Radiol. 2017 Mar; 90 (1071). PMID: 27936889
  2. Nachiappan AC, Rahbar K, Shi X, Guy ES, Mortani Barbosa EJ Jr, Shroff GS, Ocazionez D, Schlesinger AE, Katz SI, Hammer MM. Pulmonary Tuberculosis: Role of Radiology in Diagnosis and Management. Radiographics. 2017 Jan-Feb;37(1):52-72. PMID: 28076011
  3. Nguyen TC, Thourani VH, Pham JQ, Zhao Y, Terwelp MD, Balan P, Ocazionez D, Loghin C, Smalling RW, Estrera AL, Lamelas J. Traditional Sternotomy Versus Minimally Invasive Aortic Valve Replacement in Patients Stratified by Ejection Fraction. Innovations (Phila). 2017 Jan/Feb;12(1):33-40. PMID: 28099179
  4. Cherian SV, Ocazionez D, Estrada-Y-Martin RM. Spontaneous Lung Hernia Secondary to Persistent Cough: A Rare Entity. Arch Bronchoneumol. 2017 Jul 24. Epub ahead of print. PMID: 28751132
  5. Cherian SV, Ocazionez D, Ambelil M, Estrada-Y-Martin RM. Adenolipoma of Bronchus; a Rare Entity. Am J Respir Crit Care Med. 2017 Dec 21. doi: 10.1164/rccm.201710-2003IM. [Epub ahead of print] PubMed PMID: 29266963.
  6. Shroff GS, Ocazionez D, Akkanti B, Vargas D, Garza A, Gupta P, Patel JA, Patel MK, Gregoric ID. CT Imaging of Complications Associated with Continuous-Flow Left Ventricular Assist Devices (LVADs). Semin Ultrasound CT MR. 2017 Dec;38(6):616-628. doi: 10.1053/j.sult.2017.07.005. Epub 2017 Aug 2. PubMed PMID: 29179901.
  7. Ocazionez D, Shroff GS, Vargas D, Dicks D, Chaturvedi A, Nachiappan AC, Murillo H, Baxi A, Restrepo CS. Imaging of Intrathoracic Paragangliomas. Semin Ultrasound CT MR. 2017 Dec;38(6):584-593. doi: 10.1053/j.sult.2017.07.004. Epub 2017 Aug 4. PubMed PMID: 29179898.
  8. Terwelp MD, Thourani VH, Zhao Y, Balan P, Loghin C, Ocazionez D, Estrera A, Hoffmann CT, Babaliaros VC, Lamelas J, Nguyen TC. Minimally Invasive Versus Transcatheter and Surgical Aortic Valve Replacement: A Propensity Matched Study. J Heart Valve Dis. 2017 Mar;26(2):146-154. PubMed PMID: 28820543.
  9. Chaturvedi A, Vargas D, Ocazionez D. CT for evaluation of acute pericardial emergencies in the ED. Emerg Radiol. 2018 Jun; 25(3): 321-328. PMID: 29569049
  10. Sigakis CJG, Matthai SK, Suby-Long TD, Restauri NL, Ocazionez D, Bang TJ, Restrepo CS, Sachs PB, Vargas D. Radiographic review of current therapeutic and monitoring devices in the chest. Radiographics. 2018. Jun 15:170096. {Epub ahead of print}. PMID: 29906203
  11. Restrepo CS, Vargas D, Martinez-Jimenez S, Ocazionez D. Post-operative imaging of pulmonary vessels. Cardiovasc Diagn Ther. 2018 Jun;8(3): 362-371. PMID: 30057882
  12. Escalon JG, Browne LP, Bang TJ, Restrepo CS, Ocazionez D, Vargas D. Congenital anomalies of the pulmonary arteries: an imaging overview. Br J Radiol. 2018 Aug 31:2018. PMID: 30102560
  13. Alhafez BA, Truong VTT, Ocazionez D, Sohrabi S, Sandhu H, Estrera A, Safi HJ, Evangelista A, Hurtado LD, Guala A, Prakash SK. Aortic arch tortuosity, a novel biomarker for thoracic aortic disease, is increased in adults with bicuspid aortic valve. Int J Cardiol. 2019 Jun 1;284:84-89. PMID: 30366853
  14. Salahuddin M, Karanth S, Ocazionez D, Estrada-Y-Martin RM, Cherian SV. Clinical characteristics and etiologies of miliary nodules in the US: A single center study. Am J Med. 2019 Jan 16. PMID: 30659816
  15. Aisenberg GM, Ocazionez D, Arduino Roberto C. Duration of hypoxemia in Pneumocystis Jirovecii Pneumonia.. J Microbiol Genet 4: 120. DOI: 10.29011/2574-7371.000120.
  16. Cherian SV, Kumar A, Ocazionez D, Estrada-Y-Martin RM, Restrepo CS. Developmental lung anomalies in adults: A pictorial review. Respir Med. 2019 Aug; 155:86-96. Epub 2019 Jul 11. PMID: 31326738.

OTHER PUBLICATIONS:

Educational Exhibits and Poster Presentations:

  1. Strange C, Restrepo CS, Guillory R, Ocazionez D. Unusual and Atypical Presentations of Emphysema. Educational Exhibit – American Roentgen Ray Society, New Orleans, LA. May 2017.
  2. Blair K, Restrepo CS, Ocazionez D. A Simplified Review of Truncus Arteriosus for the Radiologist. Educational Exhibit – American Roentgen Ray Society, New Orleans, LA. May 2017.
  3. Restrepo CS, Gonzalez D, Baxi A, Carrillo J, Vargas D, Ocazionez D. Bronchocentric Granulomatosis: An Overview. Educational Exhibit –World Congress of Thoracic Imaging, Boston, MA. Jun 2017.
  4. Ocazionez D, Vargas D, Balan P, Au J, Hanna M, Kicska G, Chaturvedi A, Nguyen T. Imaging of TAVR Complications. Poster Exhibit –World Congress of Thoracic Imaging, Boston, MA. Jun 2017.
  5. Baxi A, Murali B, Katre R, Saboo S, Ocazionez D, Restrepo CS. Overview of complications of acute & chronic myocardial infarction- Revisiting pathogenesis and cross sectional imaging. Educational Exhibit – Radiological Society of North America 103th annual meeting, Chicago, IL. Dec 2017.
  6. Baxi A, Vargas D, Ocazionez D, Martinez-Jimenez S, Restrepo CS. Thoracic manifestations of common inheritable immunodefiency disorders (CIID): Complete radiological spectrum. Educational Exhibit – Radiological Society of North America 103th annual meeting, Chicago, IL. Dec 2017.
  7. Alhafez, B, Truong VT, Sohrabi S, Malahfji M, Sandhu H, Estrera A, Safi H, Ocazionez D, Prakash S. Aortic Arch Tortuosity and Length are Increased in Bicuspid Aortic Valve. Oral Presentation at North America Society of Cardiovascular Imaging (NASCI) meeting 2017; San Antonio, TX, USA.
  8. Alhafez, B, Truong VT, Sohrabi S, Sandhu H, Estrera A, Safi H, Ocazionez D, Prakash S. Aortic Tortuosity in Bicuspid Aortic Valve and its Correlation with Clinical Outcomes. Poster at the American College of Cardiology (ACC) Scientific Sessions 2018; Orlando, FL, USA
  9. Rahim R, Cherian S, Estrada-Y-Martin R, Ocazionez D. Typical and atypical manifestations of intrathoracic sarcoidosis simulating other diseases. Society of Thoracic Radiology, Austin, TX. March 2018.
  10. Jain S, Restrepo CS, Hanna M, Au J, Ocazionez D. Imaging of the tricuspid valve: Understanding Congenital and Acquired Abnormalities. American Roentgen Ray Society, Washington DC, April 2018.
  11. Shroff GS, Shroff S, Shivaprasad A, Ocazionez D, et al. It’s not in your head: Thoracic Manifestations of Neurologic Diseases and Disorders. Radiological Society of North America 104th annual meeting, Chicago, IL. Dec 2018.
  12. Tripathee N, Matta E, Chua S, Aisenberg G, Ocazionez D. Imaging of AIDS Defining Conditions in the Chest and Abdomen. American Roentgen Ray Society, Hawaii, April 2019
  13. Chua S, Matta E, Restrepo CS, Ocazionez D. Demystifying the unilateral hyperlucent lung. American Roentgen Ray Society, Hawaii, April 2019
  14. Chua S, Katz N, Ucisik-Kesser F, Ocazionez D, Matta E. Gallbladder pathologies: Separating the Emergent, Chronic, Neoplastic and Benign Conditions. American Roentgen Ray Society, Hawaii, April 2019

GRAND ROUNDS, NATIONAL AND INTERNATIONAL LECTURES:

“Lung –RADS”
Texas Radiological Society (TRS)
March of 2017

“CT evaluation of coronary anomalies”
Mexican Society of Radiology (Puebla, Mexico)
May of 2017

“MR viability” North American Society of Cardiovascular Imaging (NASCI) October of 2017 “Moderator in Cardiac MRI Scientific presentations” North American Society of Cardiovascular Imaging (NASCI) October of 2017 “MR imaging of pediatric cardiac masses” American Heart Association (AHA) November of 2017 “Moderator in Cardiac MRI Scientific presentations” Radiological Society of North America December of 2017 Cardiac Imaging Refresher Course
Texas Radiological Society (TRS)
March of 2018

Cardiac Imaging Refresher Course The cancer imaging and intervention conference presented by MD Anderson April of 2018 “Imaging of Transcatheter Pulmonary Valve Replacement” North American Society of Cardiovascular Imaging (NASCI) September of 2018 “Moderator in Structural Heart Disease Course” North American Society of Cardiovascular Imaging (NASCI) September of 2018 “Imaging in Cardioncology” American Heart Association (AHA) November of 2018 “Moderator in Cardioncology scientific presentations” Radiological Society of North America December of 2018 Cardiac Imaging Refresher Course
Texas Radiological Society (TRS)
March of 2019

MEDIA AND NEWS:
UNIVISION News Houston: 12/01/2018 Topic discussed: Lung cancer.
Anchor: Arnaldo Rojas

Honors and Awards

**Faculty profiles will only highlight current information (the last three years). Please see the faculty’s CV for more information.

HONORS AND AWARDS

  1. Excellence in Teaching Award
    Awarded by the UT Houston Graduating Radiology Resident Class 2019
  2. Dean’s Teaching Excellence Award 2017-2018
    McGovern Medical School at UTHealth
  3. Certificate of Merit
    The Heart of the Matter: Imaging evaluation of the Cardiac Transplant Patient
    American Roentgen Ray Society 2018
  4. RSNA Honored Educator Award
    Award given by the RSNA board of Directors 2017
  5. Dean’s Teaching Excellence Award 2017
    McGovern Medical School at UTHealth