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Pamela T Johnson, MD

Residency Program Director. Department of Radiology
Associate Professor of Radiology and Radiological Science
Appointment Phone


Main Location

The Johns Hopkins Hospital

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Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

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International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Residency Program Director. Department of Radiology
  • Associate Professor of Radiology and Radiological Science


Diagnostic Radiology

Research Interests

Protocol design and interpretation; Multidetector row CT


Dr. Pamela T. Johnson is an Associate Professor in the Johns Hopkins Medicine Department of Radiology and Radiological Science and the Radiology Residency Program Director. Her area of expertise is Body CT.

Dr. Johnson graduated from Harvard University in 1987 and earned her medical degree from Thomas Jefferson University in Philadelphia, PA in 1991. She completed her residency at The Johns Hopkins Hospital and performed a fellowship in ultrasound, computed tomography (CT), and magnetic image resonance imaging (MRI) at Jefferson University Hospital. Dr. Johnson joined the Johns Hopkins faculty in 2005.

Her research interests include multidetector row CT.

Dr. Johnson is a member of the Radiologic Society of North America, the American Roentgen Ray Society, the Association of University Radiologists, the Society of Abdominal Radiology and the American College of Radiology.


  • English


Radiologic Society of North America, 1992 
American Roentgen Ray Society, 1992
American College of Radiology, 1997

Association of University Radiologists, 2014

Society of Abdominal Radiology, 2014


Additional Resources +
  • Education +


    • Jefferson Medical College of Thomas Jefferson University (Philadelphia PA ) (1991)


    • Johns Hopkins University School of Medicine / Radiology (Baltimore MD ) (1996)


    • Thomas Jefferson University Hospital / Ultrasound (Philadelphia PA ) (1997)


    • Diagnostic Radiology, American Board of Radiology (1996)
  • Research & Publications +

    Selected Publications

    1. Northcutt BG, Raman SP, Long C, Oshmyansky AR, Siegelman SS, Fishman EK, Johnson PT. “MDCT of Adrenal Masses: Can Dual-Phase Enhancement Patterns Be Used to Differentiate Adenoma and Pheochromocytoma?” AJR Am J Roentgenol. 2013 Oct;201(4):834-9. doi: 10.2214/AJR.12.9753.
PMID: 24059372 [PubMed - in process]
Select item 24059362

    2. Chu LC, Johnson PT, Cameron DE, Fishman EK. “MDCT Evaluation of Aortic Root Surgical Complications.” AJR Am J Roentgenol. 2013 Oct;201(4):736-44. doi: 10.2214/AJR.12.10010.
PMID: 24059362 [PubMed - in process]
Select item 23770125

    3. Kruse MJ, Johnson PT, Fishman EK, Zimmerman SL. “Aortic intramural hematoma: Review of high-risk imaging features.”J Cardiovasc Comput Tomogr. 2013 May 10. doi:pii: S1934-5925(13)00105-6. 10.1016/j.jcct.2013.04.001. [Epub ahead of print]
PMID: 23770125 [PubMed - as supplied by publisher]
Select item 23642881

    4. Mahesh M, Johnson PT, Fishman EK. “Dual-energy CT: is it ready for prime time?” J Am Coll Radiol. 2013 May;10(5):383-5. doi: 10.1016/j.jacr.2013.02.001. No abstract available.
PMID: 23642881 [PubMed - in process]
Select item 23601445

    5. Pierorazio PM, Hyams ES, Tsai S, Feng Z, Trock BJ, Mullins JK, Johnson PT, Fishman EK, Allaf ME. “Multiphasic enhancement patterns of small renal masses (≤4 cm) on preoperative computed tomography: utility for distinguishing subtypes of renal cell carcinoma, angiomyolipoma, and oncocytoma.” Urology. 2013 Jun;81(6):1265-71. doi: 10.1016/j.urology.2012.12.049. Epub 2013 Apr 17.
PMID: 23601445 [PubMed - indexed for MEDLINE]
Select item 23452995
  • Academic Affiliations & Courses +
  • Activities & Honors +


    Awards, Honors (title, date, description, sponsor)
    1. AOA, 1990, Elected in Junior Year, Jefferson Medical College.
    2. Outstanding Intern Award, 1992, Presbyterian Medical Center, Internal Medicine Internship.
    3. Chief Resident, 1995-1996, Johns Hopkins Hospital, Radiology Residency.
    4. Homar Branch Award for outstanding fellow, 1997, Thomas Jefferson University Hospital, Ultrasound/CT/MRI Fellowship.
    5. Radiology Editors Award for Distinction in reviewing 1997, 1998, 1999, 2002, 2007.

  • Videos & Media +


    When Do I Need a Non-contrast CT? 2012

    Dr. Pamela T. Johnson continues her series of CT Pearls and Pitfalls. This installment discusses the specific situations that require a noncontrast study. When do you need a non-contrast CT? Not often! Efforts to reduce the radiation dose to patients require a careful look at the clinical question you as a radiologist need to answer.

    How to Dictate a Body CT

    Dr. Pamela T. Johnson offers a review of the necessary components of a Body CT report. The lecture addresses indications, techniques, findings, and the impression. Dr. Johnson shares key points to remember when assessing lymph nodes. A summary is provided for radiology residents on how best to approach a Body CT.

    What Am I Missing on a Non-Contrast CT?

    The third installment of Dr. Pamela T. Johnson's Body CT Pearls and Pitfalls explains the etiologies that can be missed if you are not using contrast appropriately. Several cases are discussed to aid in the evaluation of patients presenting with generalized abdominal pain, which may represent something other than a renal calculus.

    When Do I Need A Delayed Acquisition?

    The fourth installment of Dr. Pamela T. Johnson's Body CT Pearls and Pitfalls provides guidance in decisions regarding delayed acquisitions. When do you need delayed acquisitions? Not often! A discussion of appropriate scenarios to include correct timing parameters is included

    When Do I Perform a Gated Chest CT?

    Join Dr. Pamela T. Johnson in a discussion of cardiac gating in chest CT. ECG gating, retrospective or prospective, minimizes motion artifact from the beating heart. The use of gating enables coronary artery and aortic valve evaluation.

  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Sheikh Zayed Tower
    Baltimore, MD 21287
    Phone: 410-955-9446
    Appointment Phone: 410-955-4100
    Location Map
    Johns Hopkins Outpatient Center
    601 N. Caroline Street
    Baltimore, MD 21287
    Phone: 410-955-9446
    Appointment Phone: 410-955-4100
    Location Map


    • Radiology and Radiological Science - Body CT

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