James T. Dobbins

James T. Dobbins

Professor in Radiology

James T. Dobbins III, PhD., FAAPM
Associate Vice Provost
Director, Office of Duke Kunshan University Programs
Professor of Radiology, Biomedical Engineering, and Physics
Chair, Education Council, American Association of Physicists in Medicine
Co-founder, Society of Directors of Academic Medical Physics Programs, Inc.

I serve in senior university administration as Associate Vice Provost for DKU Programs.  In this role I oversee the academic and programmatic efforts at Duke for the establishment of the graduate and undergraduate programs at Duke Kunshan University -- Duke's joint venture university in Kunshan, China.

My research career has focused on the application of physics to medicine.  I undertake projects that range from theoretical/mathematical projects, to invention of new imaging devices, to clinical trials and implementation of new imaging modalities.  Several research projects in my lab have resulted in commercial products that are now in use in hundreds of hospitals around the world.

I also have a passion for leadership and education.   I was the founding Director of the Medical Physics Graduate Program at Duke, which includes over 50 faculty and 50 MS and PhD students in diagnostic imaging physics, radiation oncology physics, nuclear medicine physics, and medical health physics.  I co-founded the Society of Directors of Academic Medical Physics Programs, Inc, which works to strengthen medical physics education worldwide.  And I currently serve as Chair of the Education Council for the American Association of Physics in Medicine, and through this work influence major educational directions for our field.

Whether in biomedical research, education, or university leadership, the goal of my career has been to enhance the common good in our globally connected community.

Appointments and Affiliations

  • Professor in Radiology
  • Professor in the Department of Physics

Contact Information

  • Office Location: Flowers Bldg, Suite 214, Box 90036, Durham, NC 27708
  • Office Phone: (919) 684-4859
  • Email Address: james.dobbins@duke.edu

Education

  • Ph.D. University of Wisconsin at Madison, 1985
  • M.S. University of Wisconsin at Madison, 1983
  • B.S. University of North Carolina at Chapel Hill, 1978

Specialties

Medical Imaging

Awards, Honors, and Distinctions

  • Annual student leadership award named in my honor. Duke Medical Physics Graduate Program. 2017
  • Invited Commencement Speaker. Duke Kunshan University. 2016
  • Award for Outstanding Leadership. Medical Physics Graduate Program. 2015
  • Award for Exceptional Leadership of the Medical Physics Graduate Program (2005-10). Dean of School of Medicine, Dean of the Graduate School, and Medical Physics Administrative Council. 2010
  • Fellow. American Association of Physicists in Medicine. 2009
  • Recognition of Outstanding Achievement. SPIE - International Society for Optical Engineering. 2000
  • Sylvia Sorkin Greenfield Award for best scientific paper of the year. American Association of Physicists in Medicine. 1996
  • Stauffer Award for best clinical research paper of the year. Investigative Radiology journal. 1992

Courses Taught

  • MEDPHY 731: Advanced Medical Imaging Physics
  • MEDPHY 731K: Advanced Medical Imaging Physics
  • MEDPHY 732: Advanced Topics of Ionizing-based Imaging Modalities

In the News

Representative Publications

  • Kiarashi, N; Lo, JY; Lin, Y; Ikejimba, LC; Ghate, SV; Nolte, LW; Dobbins, JT; Segars, WP; Samei, E, Development and application of a suite of 4-D virtual breast phantoms for optimization and evaluation of breast imaging systems., Ieee Transactions on Medical Imaging, vol 33 no. 7 (2014), pp. 1401-1409 [10.1109/TMI.2014.2312733] [abs].
  • Segars, WP; Veress, AI; Wells, JR; Sturgeon, GM; Kiarashi, N; Lo, JY; Samei, E; Dobbins, JT, Population of 100 realistic, patient-based computerized breast phantoms for multi-modality imaging research, Progress in Biomedical Optics and Imaging Proceedings of Spie, vol 9033 (2014) [10.1117/12.2043868] [abs].
  • Dobbins, JT; Wells, JR; Segars, WP, Dose reduction in CT with correlated-polarity noise reduction: Context-dependent spatial resolution and noise properties demonstrating two-fold dose reduction with minimal artifacts, Progress in Biomedical Optics and Imaging Proceedings of Spie, vol 9033 (2014) [10.1117/12.2043685] [abs].
  • Wells, JR; Dobbins, JT, Frequency response and distortion properties of nonlinear image processing algorithms and the importance of imaging context., Medical Physics, vol 40 no. 9 (2013) [10.1118/1.4817477] [abs].
  • Kiarashi, N; Sturgeon, GM; Nolte, LW; Lo, JY; Dobbins, JT; Segars, WP; Samei, E, Development of matched virtual and physical breast phantoms based on patient data, Progress in Biomedical Optics and Imaging Proceedings of Spie, vol 8668 (2013) [10.1117/12.2008406] [abs].
  • III, JTD; Wells, JR; Segars, WP, Dose reduction in CT with correlated-polarity noise reduction: Comparable image quality at half the dose with projection space processing, Progress in Biomedical Optics and Imaging Proceedings of Spie, vol 8668 (2013) [10.1117/12.2008563] [abs].
  • Wells, JR; III, JTD, Preliminary investigation of the frequency response and distortion properties of nonlinear image processing algorithms, Progress in Biomedical Optics and Imaging Proceedings of Spie, vol 8668 (2013) [10.1117/12.2008549] [abs].
  • Lin, Y; Luo, H; Dobbins, JT; Page McAdams, H; Wang, X; Sehnert, WJ; Barski, L; Foos, DH; Samei, E, An image-based technique to assess the perceptual quality of clinical chest radiographs., Medical Physics, vol 39 no. 11 (2012), pp. 7019-7031 [10.1118/1.4760886] [abs].
  • Samei, E; Majdi-Nasab, N; Dobbins, JT; McAdams, HP, Biplane correlation imaging: a feasibility study based on phantom and human data., Journal of Digital Imaging, vol 25 no. 1 (2012), pp. 137-147 [10.1007/s10278-011-9392-z] [abs].
  • Hsu, CML; Palmeri, ML; Segars, WP; Veress, AI; Dobbins, JT, An analysis of the mechanical parameters used for finite element compression of a high-resolution 3D breast phantom., Medical Physics, vol 38 no. 10 (2011), pp. 5756-5770 [10.1118/1.3637500] [abs].
  • Samei, E; Ranger, NT; Dobbins, JT; Ravin, CE, Effective dose efficiency: an application-specific metric of quality and dose for digital radiography., Physics in Medicine and Biology, vol 56 no. 16 (2011), pp. 5099-5118 [10.1088/0031-9155/56/16/002] [abs].
  • Dobbins, JT; McAdams, HP, Chest tomosynthesis: technical principles and clinical update., European Journal of Radiology, vol 72 no. 2 (2009), pp. 244-251 [10.1016/j.ejrad.2009.05.054] [abs].
  • Samei, E; Ranger, NT; MacKenzie, A; Honey, ID; Dobbins, JT; Ravin, CE, Effective DQE (eDQE) and speed of digital radiographic systems: an experimental methodology., Medical Physics, vol 36 no. 8 (2009), pp. 3806-3817 [10.1118/1.3171690] [abs].
  • Li, CM; Segars, WP; Tourassi, GD; Boone, JM; Dobbins, JT, Methodology for generating a 3D computerized breast phantom from empirical data., Medical Physics, vol 36 no. 7 (2009), pp. 3122-3131 [10.1118/1.3140588] [abs].
  • Dobbins, JT, Tomosynthesis imaging: at a translational crossroads., Medical Physics, vol 36 no. 6 (2009), pp. 1956-1967 [10.1118/1.3120285] [abs].
  • Godfrey, DJ; McAdams, HP; Dobbins, JTT, Stochastic noise characteristics in matrix inversion tomosynthesis (MITS)., Medical Physics, vol 36 no. 5 (2009), pp. 1521-1532 [10.1118/1.3103399] [abs].
  • Samei, E; Ranger, NT; MacKenzie, A; Honey, ID; Dobbins, JT; Ravin, CE, Detector or system? Extending the concept of detective quantum efficiency to characterize the performance of digital radiographic imaging systems., Radiology, vol 249 no. 3 (2008), pp. 926-937 [10.1148/radiol.2492071734] [abs].
  • James, TD; McAdams, HP; Song, J-W; Li, CM; Godfrey, DJ; DeLong, DM; Paik, S-H; Martinez-Jimenez, S, Digital tomosynthesis of the chest for lung nodule detection: interim sensitivity results from an ongoing NIH-sponsored trial., Medical Physics, vol 35 no. 6 (2008), pp. 2554-2557 [10.1118/1.2937277] [abs].
  • Dobbins, JT; McAdams, HP; Godfrey, DJ; Li, CM, Digital tomosynthesis of the chest., Journal of Thoracic Imaging, vol 23 no. 2 (2008), pp. 86-92 [10.1097/RTI.0b013e318173e162] [abs].
  • Chen, Y; Lo, JY; Dobbins, JT, Importance of point-by-point back projection correction for isocentric motion in digital breast tomosynthesis: relevance to morphology of structures such as microcalcifications., Medical Physics, vol 34 no. 10 (2007), pp. 3885-3892 [10.1118/1.2776256] [abs].
  • Ranger, NT; Samei, E; Dobbins, JT; Ravin, CE, Assessment of detective quantum efficiency: intercomparison of a recently introduced international standard with prior methods., Radiology, vol 243 no. 3 (2007), pp. 785-795 [10.1148/radiol.2433060485] [abs].
  • Samei, E; Stebbins, SA; Dobbins, JT; McAdams, HP; Lo, JY, Multiprojection correlation imaging for improved detection of pulmonary nodules., AJR. American journal of roentgenology, vol 188 no. 5 (2007), pp. 1239-1245 [10.2214/AJR.06.0843] [abs].
  • McAdams, HP; Samei, E; Dobbins, J; Tourassi, GD; Ravin, CE, Recent advances in chest radiography., Radiology, vol 241 no. 3 (2006), pp. 663-683 [10.1148/radiol.2413051535] [abs].
  • Dobbins, JT; Samei, E; Ranger, NT; Chen, Y, Intercomparison of methods for image quality characterization. II. Noise power spectrum., Medical Physics, vol 33 no. 5 (2006), pp. 1466-1475 [10.1118/1.2188819] [abs].
  • Samei, E; Ranger, NT; Dobbins, JT; Chen, Y, Intercomparison of methods for image quality characterization. I. Modulation transfer function., Medical Physics, vol 33 no. 5 (2006), pp. 1454-1465 [10.1118/1.2188816] [abs].
  • Godfrey, DJ; McAdams, HP; Dobbins, JT, Optimization of the matrix inversion tomosynthesis (MITS) impulse response and modulation transfer function characteristics for chest imaging., Medical Physics, vol 33 no. 3 (2006), pp. 655-667 [10.1118/1.2170398] [abs].
  • Samei, E; Saunders, RS; Lo, JY; Dobbins, JT; Jesneck, JL; Floyd, CE; Ravin, CE, Fundamental imaging characteristics of a slot-scan digital chest radiographic system., Medical Physics, vol 31 no. 9 (2004), pp. 2687-2698 [10.1118/1.1783531] [abs].
  • Dobbins, JT; Godfrey, DJ, Digital x-ray tomosynthesis: current state of the art and clinical potential., Physics in Medicine and Biology, vol 48 no. 19 (2003), pp. R65-106 [10.1088/0031-9155/48/19/r01] [abs].
  • Duryea, J; Dobbins, JT; Lynch, JA, Digital tomosynthesis of hand joints for arthritis assessment., Medical Physics, vol 30 no. 3 (2003), pp. 325-333 [10.1118/1.1543573] [abs].
  • Warp, RJ; Dobbins, JT, Quantitative evaluation of noise reduction strategies in dual-energy imaging., Medical Physics, vol 30 no. 2 (2003), pp. 190-198 [10.1118/1.1538232] [abs].
  • Dobbins, JT; Samei, E; Chotas, HG; Warp, RJ; Baydush, AH; Floyd, CE; Ravin, CE, Chest radiography: optimization of X-ray spectrum for cesium iodide-amorphous silicon flat-panel detector., Radiology, vol 226 no. 1 (2003), pp. 221-230 [10.1148/radiol.2261012023] [abs].
  • Floyd, CE; Warp, RJ; Dobbins, JT; Chotas, HG; Baydush, AH; Vargas-Voracek, R; Ravin, CE, Imaging characteristics of an amorphous silicon flat-panel detector for digital chest radiography., Radiology, vol 218 no. 3 (2001), pp. 683-688 [10.1148/radiology.218.3.r01fe45683] [abs].
  • Chotas, HG; Dobbins, JT; Ravin, CE, Principles of digital radiography with large-area, electronically readable detectors: a review of the basics., Radiology, vol 210 no. 3 (1999), pp. 595-599 [10.1148/radiology.210.3.r99mr15595] [abs].
  • Bradford, CD; Peppler, WW; Dobbins, JT, Performance characteristics of a Kodak computed radiography system., Medical Physics, vol 26 no. 1 (1999), pp. 27-37 [10.1118/1.598781] [abs].
  • Althof, RJ; Wind, MG; Dobbins, JT, A rapid and automatic image registration algorithm with subpixel accuracy., Ieee Transactions on Medical Imaging, vol 16 no. 3 (1997), pp. 308-316 [10.1109/42.585765] [abs].
  • Hinshaw, DA; Dobbins, JT, Plate scatter correction for improved performance in dual-energy imaging., Medical Physics, vol 23 no. 6 (1996), pp. 871-876 [10.1118/1.597855] [abs].
  • Dobbins, JT; Ergun, DL; Rutz, L; Hinshaw, DA; Blume, H; Clark, DC, DQE(f) of four generations of computed radiography acquisition devices., Medical Physics, vol 22 no. 10 (1995), pp. 1581-1593 [10.1118/1.597627] [abs].
  • Dobbins, JT, Effects of undersampling on the proper interpretation of modulation transfer function, noise power spectra, and noise equivalent quanta of digital imaging systems., Medical Physics, vol 22 no. 2 (1995), pp. 171-181 [10.1118/1.597600] [abs].
  • Dobbins, JT; Rice, JJ; Goodman, PC; Patz, EF; Ravin, CE, Variable compensation chest radiography performed with a computed radiography system: design considerations and initial clinical experience., Radiology, vol 187 no. 1 (1993), pp. 55-63 [10.1148/radiology.187.1.8451437] [abs].
  • Chotas, HG; Floyd, CE; Dobbins, JT; Ravin, CE, Digital chest radiography with photostimulable storage phosphors: signal-to-noise ratio as a function of kilovoltage with matched exposure risk., Radiology, vol 186 no. 2 (1993), pp. 395-398 [10.1148/radiology.186.2.8421741] [abs].
  • Dobbins, JT; Chotas, HG; Benveniste, H, Direct digitization of optical images using a photostimulable phosphor system., Medical Physics, vol 19 no. 4 (1992), pp. 1071-1080 [10.1118/1.596917] [abs].
  • Dobbins, JT; Rice, JJ; Beam, CA; Ravin, CE, Threshold perception performance with computed and screen-film radiography: implications for chest radiography., Radiology, vol 183 no. 1 (1992), pp. 179-187 [10.1148/radiology.183.1.1549669] [abs].
  • Chotas, HG; Dobbins, JT; Floyd, CE; Ravin, CE, Single-exposure conventional and computed radiography image acquisition., Investigative Radiology, vol 26 no. 5 (1991), pp. 438-445 [abs].
  • Chotas, HG; Floyd, CE; Dobbins, JT; Lo, JY; Ravin, CE, Scatter fractions in AMBER imaging., Radiology, vol 177 no. 3 (1990), pp. 879-880 [10.1148/radiology.177.3.2244003] [abs].
  • Floyd, CE; Chotas, HG; Dobbins, JT; Ravin, CE, Quantitative radiographic imaging using a photostimulable phosphor system., Medical Physics, vol 17 no. 3 (1990), pp. 454-459 [10.1118/1.596569] [abs].
  • Dobbins, JT; Powell, AO, Variable compensation technique for digital radiography of the chest., Radiology, vol 173 no. 2 (1989), pp. 451-458 [10.1148/radiology.173.2.2798877] [abs].
  • Hasegawa, BH; Dobbins, JT; Naimuddin, S; Peppler, WW; Mistretta, CA, Geometrical properties of a digital beam attenuator system., Medical Physics, vol 14 no. 3 (1987), pp. 314-321 [10.1118/1.596086] [abs].
  • Hasegawa, BH; Naimuddin, S; Dobbins, JT; Mistretta, CA; Peppler, WW; Hangiandreou, NJ; Cusma, JT; McDermott, JC; Kudva, BV; Melbye, KM, Digital beam attenuator technique for compensated chest radiography., Radiology, vol 159 no. 2 (1986), pp. 537-543 [10.1148/radiology.159.2.3961188] [abs].
  • Dobbins, JT; Pedersen, PL; Mazess, RB; Cameron, JR; Hansen, JL; Hefner, LV, A scanning-slit x-ray videoabsorptiometric technique for bone mineral measurement., Medical Physics, vol 11 no. 5 (1984), pp. 582-588 [10.1118/1.595554] [abs].
  • Swanson, DK; Myerowitz, PD; Hasegawa, B; Van Lysel, MS; Watson, KM; Frantz, DW; Banaszak, S; Hausman-Stokes, E; Peppler, WW; Dobbins, JT, Videodensitometric quantitation of mean blood flow., Journal of Surgical Research, vol 34 no. 6 (1983), pp. 524-532 [abs].
  • Van Lysel, MS; Dobbins, JT; Peppler, WW; Hasegawa, BH; Lee, CS; Mistretta, CA; Zarnstorff, WC; Crummy, AB; Kubal, W; Bergsjordet, B; Strother, CM; Sackett, JF, Work in progress: hybrid temporal-energy subtraction in digital fluoroscopy., Radiology, vol 147 no. 3 (1983), pp. 869-874 [10.1148/radiology.147.3.6342038] [abs].
  • Shaw, CG; Ergun, DL; Lysel, MSV; Peppler, WW; Dobbins, JT; Zarnstorff, WC; Myerowitz, PD; Swanson, DK; Lasser, TA; Mistretta, CA; Dhanani, SP; Strother, CM; Crummy, AB, QUANTITATION TECHNIQUES IN DIGITAL SUBTRACTION VIDEOANGIOGRAPHY., Proceedings of SPIE - The International Society for Optical Engineering, vol 314 (1981), pp. 121-129 [abs].

Lectures and Invited Talks

  • Theoretical and practical elements of tomosynthesis imaging (invited workshop), SPIE Physics of Medical Imaging Conference,
  • Imaging in Medicine: digital radiography (keynote address), SPIE Physics of Medical Imaging Conference,
  • Digital radiography: technical foundations and contemporary research, Memphis BioImaging Symposium,
  • Advances in digital radiography -- Digital radiographic advanced methods for depth discrimination: chest tomosynthesis, Radiological Society of North America 91st Scientific Assembly,
  • Digital x-ray detectors for radiography: technical innovations (physics plenary talk), Radiological Society of North America 85th Scientific Assembly,

Selected Activities

  • Founder and Director, Duke Medical Physics Graduate Program,
  • Co-founder, Society of Directors of Academic Medical Physics Programs,
  • Former Chair, NIH Special Study Section,
  • Chair, University Misconduct in Research Committee,
  • Vice-chair, Education Council, American Association of Physicists in Medicine,