Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • M.D., Loyola University at Chicago 2001
• 

  Duke Appointment History

  • Assistant Professor of Radiology, Radiology, Breast Imaging, Radiology 2013 - 2019
  • Medical Instructor in the Department of Radiology, Radiology, Breast Imaging, Radiology 2008 - 2013
  • Clinical Associate in the Department of Radiology, Radiology, Breast Imaging, Radiology 2006 - 2007
  • Instructor, Temporary in the Department of Radiology, Radiology, Breast Imaging, Radiology 2006
• 

  Leadership & Clinical Positions at Duke

  • Residency Program Director, Diagnostic Radiology     2016-present
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Dixon, Austin, Karen Johnson, Leah Strickland, Bhavik Patel, and Nicholas Said. “Assessing the Effectiveness of a Health Care Economics Curriculum for Radiology Residents..” Journal of the American College of Radiology : Jacr, February 25, 2019. https://doi.org/10.1016/j.jacr.2018.12.040.
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    • Johnson, K., J. Chang-Claude, A. -. M. Critchley, C. Kyriacou, S. Lavers, T. Rattay, P. Seibold, et al. “Genetic Variants Predict Optimal Timing of Radiotherapy to Reduce Side-effects in Breast Cancer Patients..” Clinical Oncology (Royal College of Radiologists (Great Britain)) 31, no. 1 (January 2019): 9–16. https://doi.org/10.1016/j.clon.2018.10.001.
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    • Goldman, Daryl T., Gail L. Peters, Aaron M. Fischman, George G. Vatakencherry, Peter R. Bream, Jonathan G. Martin, Janice M. Newsome, et al. “Best Practices From the APDR: Improving Medical Student Exposure to Interventional Radiology..” Acad Radiol 25, no. 6 (June 2018): 789–91. https://doi.org/10.1016/j.acra.2017.11.021.
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    • Grimm, Lars J., Neal K. Viradia, and Karen S. Johnson. “Normal Axillary Lymph Node Variability Between White and Black Women on Breast MRI..” Academic Radiology 25, no. 3 (March 2018): 305–8. https://doi.org/10.1016/j.acra.2017.10.007.
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    • Perlman, Katherine L., Rebecca A. Shelby, Anava A. Wren, Sarah A. Kelleher, Caroline S. Dorfman, Erin O’Connor, Connie Kim, Karen S. Johnson, and Mary Scott Soo. “Positive and negative mood following imaging-guided core needle breast biopsy and receipt of biopsy results..” Psychology, Health & Medicine 22, no. 10 (December 2017): 1149–62. https://doi.org/10.1080/13548506.2016.1271438.
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    • Grimm, Lars J., Jing Zhang, Jay A. Baker, Mary S. Soo, Karen S. Johnson, and Maciej A. Mazurowski. “Relationships Between MRI Breast Imaging-Reporting and Data System (BI-RADS) Lexicon Descriptors and Breast Cancer Molecular Subtypes: Internal Enhancement is Associated with Luminal B Subtype..” The Breast Journal 23, no. 5 (September 2017): 579–82. https://doi.org/10.1111/tbj.12799.
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    • Grimm, Lars J., David Y. Johnson, Karen S. Johnson, Jay A. Baker, Mary Scott Soo, E Shelley Hwang, and Sujata V. Ghate. “Suspicious breast calcifications undergoing stereotactic biopsy in women ages 70 and over: Breast cancer incidence by BI-RADS descriptors..” European Radiology 27, no. 6 (June 2017): 2275–81. https://doi.org/10.1007/s00330-016-4617-7.
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    • Heitkamp, Darel E., Karen S. Johnson, Robert D. Suh, Harprit S. Bedi, Sandra A. A. Oldham, Christopher P. Ho, and Angelisa M. Paladin. “Sustaining Change in Radiology Education: The Need for Universal Curricula..” Journal of the American College of Radiology : Jacr 14, no. 6 (June 2017): 804–7. https://doi.org/10.1016/j.jacr.2017.02.047.
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    • Cho, Michael W., Lars J. Grimm, and Karen S. Johnson. “Focal Breast Pain: Does Breast Density Affect the Need for Ultrasound?.” Academic Radiology 24, no. 1 (January 2017): 53–59. https://doi.org/10.1016/j.acra.2016.09.004.
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    • Wang, M., J. Zhang, L. J. Grimm, S. V. Ghate, R. Walsh, K. S. Johnson, J. Y. Lo, and M. A. Mazurowski. “Predicting false negative errors in digital breast tomosynthesis among radiology trainees using a computer vision-based approach.” Expert Systems With Applications 56 (September 1, 2016): 1–8. https://doi.org/10.1016/j.eswa.2016.01.053.
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    • Soo, Mary Scott, Jennifer A. Jarosz, Anava A. Wren, Adrianne E. Soo, Yvonne M. Mowery, Karen S. Johnson, Sora C. Yoon, et al. “Imaging-Guided Core-Needle Breast Biopsy: Impact of Meditation and Music Interventions on Patient Anxiety, Pain, and Fatigue..” Journal of the American College of Radiology : Jacr 13, no. 5 (May 2016): 526–34. https://doi.org/10.1016/j.jacr.2015.12.004.
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    • Grimm, Lars J., Jing Zhang, Joseph Y. Lo, Karen S. Johnson, Sujata V. Ghate, Ruth Walsh, and Maciej A. Mazurowski. “Radiology Trainee Performance in Digital Breast Tomosynthesis: Relationship Between Difficulty and Error-Making Patterns..” Journal of the American College of Radiology : Jacr 13, no. 2 (February 2016): 198–202. https://doi.org/10.1016/j.jacr.2015.09.025.
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    • Mazurowski, Maciej A., Lars J. Grimm, Jing Zhang, P Kelly Marcom, Sora C. Yoon, Connie Kim, Sujata V. Ghate, and Karen S. Johnson. “Recurrence-free survival in breast cancer is associated with MRI tumor enhancement dynamics quantified using computer algorithms..” European Journal of Radiology 84, no. 11 (November 2015): 2117–22. https://doi.org/10.1016/j.ejrad.2015.07.012.
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    • Grimm, Lars J., Mary S. Soo, Sora Yoon, Connie Kim, Sujata V. Ghate, and Karen S. Johnson. “Abbreviated screening protocol for breast MRI: a feasibility study..” Academic Radiology 22, no. 9 (September 2015): 1157–62. https://doi.org/10.1016/j.acra.2015.06.004.
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    • Grimm, Lars J., Andy L. Anderson, Jay A. Baker, Karen S. Johnson, Ruth Walsh, Sora C. Yoon, and Sujata V. Ghate. “Frequency of Malignancy and Imaging Characteristics of Probably Benign Lesions Seen at Breast MRI..” Ajr. American Journal of Roentgenology 205, no. 2 (August 2015): 442–47. https://doi.org/10.2214/ajr.14.13530.
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    • Zhang, Jing, Lars J. Grimm, Joseph Y. Lo, Karen S. Johnson, Sujata V. Ghate, Ruth Walsh, and Maciej A. Mazurowski. “Does Breast Imaging Experience During Residency Translate Into Improved Initial Performance in Digital Breast Tomosynthesis?.” Journal of the American College of Radiology : Jacr 12, no. 7 (July 2015): 728–32. https://doi.org/10.1016/j.jacr.2015.02.025.
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    • Grimm, Lars J., Andy L. Anderson, Jay A. Baker, Karen S. Johnson, Ruth Walsh, Sora C. Yoon, and Sujata V. Ghate. “Interobserver Variability Between Breast Imagers Using the Fifth Edition of the BI-RADS MRI Lexicon..” Ajr Am J Roentgenol 204, no. 5 (May 2015): 1120–24. https://doi.org/10.2214/AJR.14.13047.
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    • Grimm, Lars J., Karen S. Johnson, P Kelly Marcom, Jay A. Baker, and Mary S. Soo. “Can breast cancer molecular subtype help to select patients for preoperative MR imaging?.” Radiology 274, no. 2 (February 2015): 352–58. https://doi.org/10.1148/radiol.14140594.
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    • Johnson, K., D. Sarma, and E. S. Hwang. “Lobular breast cancer series: Imaging.” Breast Cancer Research 17, no. 1 (2015). https://doi.org/10.1186/s13058-015-0605-0.
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    • Johnson, Karen, Deba Sarma, and E Shelley Hwang. “Lobular breast cancer series: imaging..” Breast Cancer Research : Bcr 17 (January 2015). https://doi.org/10.1186/s13058-015-0605-0.
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    • Mazurowski, M. A., L. J. Grimm, J. Zhang, P. K. Marcom, S. C. Yoon, C. Kim, S. V. Ghate, and K. S. Johnson. “Recurrence-free survival in breast cancer is associated with MRI tumor enhancement dynamics quantified using computer algorithms.” European Journal of Radiology 84, no. 11 (2015): 2117–22. https://doi.org/10.1016/j.ejrad.2015.07.012.
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    • Soo, Adrianne E., Rebecca A. Shelby, Lauren S. Miller, Melissa Hayes Balmadrid, Karen S. Johnson, Anava A. Wren, Sora C. Yoon, Francis J. Keefe, and Mary Scott Soo. “Predictors of pain experienced by women during percutaneous imaging-guided breast biopsies..” Journal of the American College of Radiology : Jacr 11, no. 7 (July 2014): 709–16. https://doi.org/10.1016/j.jacr.2014.01.013.
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    • Johnson, Karen S., Jay A. Baker, Sheila S. Lee, and Mary Scott Soo. “Cancelation of MRI guided breast biopsies for suspicious breast lesions identified at 3.0 T MRI: reasons, rates, and outcomes..” Academic Radiology 20, no. 5 (May 2013): 569–75. https://doi.org/10.1016/j.acra.2013.01.005.
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    • Johnson, K. S., J. A. Baker, S. S. Lee, and M. S. Soo. “Cancelation of MRI Guided Breast Biopsies for Suspicious Breast Lesions Identified at 3.0 T MRI. Reasons, Rates, and Outcomes.” Academic Radiology 20, no. 5 (2013): 569–75. https://doi.org/10.1016/j.acra.2013.01.005.
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    • Johnson, Karen S., Rex C. Bentley, P. Kelly Marcom, and Jay A. Baker. “Pseudoangiomatous stromal hyperplasia (PASH) causing massive breast enlargement: MRI findings..” Breast J 18, no. 6 (November 2012): 600–601. https://doi.org/10.1111/tbj.12026.
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    • Johnson, Karen S., Jay A. Baker, Sheila S. Lee, and Mary S. Soo. “Suspicious breast lesions detected at 3.0 T magnetic resonance imaging: clinical and histological outcomes..” Academic Radiology 19, no. 6 (June 2012): 667–74. https://doi.org/10.1016/j.acra.2012.02.016.
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    • Ghate, Sujata V., Jay A. Baker, Connie E. Kim, Karen S. Johnson, Ruth Walsh, and Mary Scott C. Soo. “Using the BI-RADS lexicon in a restrictive form of double reading as a strategy for minimizing screening mammography recall rates..” Ajr. American Journal of Roentgenology 198, no. 4 (April 2012): 962–70. https://doi.org/10.2214/ajr.11.6648.
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    • Khati, Nadia, Tammy Adamson, Karen S. Johnson, and Michael C. Hill. “Ultrasound of the thyroid and parathyroid glands..” Ultrasound Quarterly 19, no. 4 (December 2003): 162–76. https://doi.org/10.1097/00013644-200312000-00002.
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  • Conference Papers

    • Wang, M., J. Zhang, L. J. Grimm, S. V. Ghate, R. Walsh, K. S. Johnson, J. Y. Lo, and M. A. Mazurowski. “Identification of error making patterns in lesion detection on digital breast tomosynthesis using computer-extracted image features.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 9787, 2016. https://doi.org/10.1117/12.2201061.
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    • Grimm, L. J., J. Zhang, K. S. Johnson, J. Y. Lo, and M. A. Mazurowski. “Incorporating breast tomosynthesis into radiology residency: Does trainee experience in breast imaging translate into improved performance with this new modality?.” In Progress in Biomedical Optics and Imaging  Proceedings of Spie, Vol. 9416, 2015. https://doi.org/10.1117/12.2082810.
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