Gene Johnston

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Richard Eugene Johnston, Ph.D.



Dept:    Radiology Department, UNC.  Chapel Hill, NC

Title:    Professor, Department of Radiology

Date & Place of Birth:   November 7, 1934,   Doylestown, Ohio

Undergraduate Work:

University of Akron, Ohio

B.S. In Physics, 1956

Graduate Work:

Vanderbilt University

M.S. in Physics, 1958

Ph.D. in Physics, 1968


5/88- Retirement. Professor, Department of Radiology, UNC

Member Graduate Faculty, The University of NC.                             Adjunct Professor, School of Public Health,  Department of   Environmental Sciences and Engi­neering.

1973-1988       Associate Professor, Department of Radiology, UNC.  Associate Profes­sor, School of Public Health,                                                  Department of Environmental Sciences and Engineering.

8/72-12/72     On leave: Hammersmith Hospital, London, UK

Semicon­ductor research:  Professor H. I. Glass, Medical Physics.

1968-73            Research Physicist at V.A. Hospital, Nashville, TN.

1969-73             Assistant Professor, Department of Radiology and                                         Assistant Director  of the Radioisotope Center,

1973   Associate Professor Radiology  Vanderbilt University

1967-69        Instructor, Department of Radiology and Assistant Director  of Radioiso­tope Center, Vanderbilt University.

1962-65       Pre-doctorate trainee in Radiological Health, Vanderbilt

1959-62       University of Oklahoma Medical Center, Oklahoma City,                            Instructor in Department of Radiology, RSO;                             Physicist and Super­visor clinical radioisotope Lab                             Physics consult to Oklahoma City V.A. Hospital in                                 radiation therapy.  Physics consultant to  Federal  Aviation  Agency, Oklahoma City.

1958-59         Atomics International, Conoga Park, California.  Engineer, Reactor Shielding Division.  Calculate and analyze                    shielding requirements for reactor systems including                            determination of neutron and gamma-ray distributions.

1956-58      Special fellowship in Radiological Physics academic work at   Vanderbilt University, summer session at Oak Ridge National        Laboratory in applied health physics.  One semester as lab                     assistant at Vanderbilt.


1.         American Association of Physicists in Medicine

2.         American Physics Society

3.         Society of Nuclear Medicine

4.         Society Photo-optical Instrumentation Engineers

5.         Society for Computer Applications in Radiology

6.         Association of University Radiologists


1.         Medical Internal Radiation Dosimetry Committee, Society of Nuclear Medicine, 1966-76, Vice Chairman 1970-72.

2.         Council member, Southeastern Chapter Society of Nuclear Medicine, 1970-73, 1977-               78.  Treasurer 1980-83 Finance Chairman 1983-85. Pres. Elect 1988-89, Pres. 1990-91.

3.         Subcommittee #32, National Council on Radiation Protection and Measurements,                   1970-present.

4.         Representative of Southeastern Chapter to the Board of Directors of The American                Association of Physicists in Medicine, 1970-72.

5.         Member Summer School Committee AAPM 1976-79.

6.         Local arrangements chairman for 1979 AAPM Summer School, 1976-79.

7.         Member Committee on Training of Medical Physicists, AAPM 1976-79.

8.         Member Instrumentation Council, SNM, Secretary 1978-79, Program Chairman 1983.

9.         Member Computer Council, Society Nuclear Medicine

10.       Member Hospital Radiation Safety Committee, Chairman 1982-present.

11.       Member Committee on Low Level Radiation Effects, Society Nuclear Medicine, 1984 to 1988.


1.         Veterans Administration Hospital, Research Physicist, 1968-73.


1.         Frye WF, Johnston RE, Hopkins JJ: K-Series fluorescence yields of vanadium, manga­nese, and neon.  Phys Rev 1959; 113:4.

2.         Ridings GR, Johnston RE:  X-ray dose measurements with a locally constructed water  phantom.  J of Okla State Med Assn 1963; 334-337.

3.         Johnston RE, Waite DA: Mossbauer resonance in iron-containing biochemicals.  Bul Am Phys Soc 1965; 10:253.

4.         Johnston RE, Douglas JH, Albridge RG:  The K-Auger spectrum of arsenic.  Nuc Phy 1967; 505-512.

5.         Patton J, Brill AB, Erickson J, Cook WE, Johnston RE:  A new approach to mapping  three-dimensional radionuclide distribution.  J Nucl Med 1969; 10(6):383.

6.         Brill AB, Williams H, Cook WE, Watts JR, Johnston RE, Nash R and Staab EV:  Analysis of imaging techniques using digitally simulated scans.  J Nucl Med 1969;10(6):389.

7.         Watts, JR, Johnston RE, Brill AB:  Methods of approach to problems of absolute quantitation ofradioactivity distributions in humans.  J Nucl Med 1970; 11(6):374.

8.         Brill AB, Johnston RE: Exposure of man to radiation.  Chapter 7 in  Late   Effects of   Radiation, Fry RJM, Graham D. Griem ML, Rust JH (eds): Taylor and Francis Ltd,  1970.

9.         Hide G, Johnston RE: Absorbed dose from radionuclides.  J Nucl Med 1970; ll(7):468-  469.

10.       Price R, Johnston RE, Brill AB, McKee LC: Methodology for quantitative measurements of radioiron distribution in normal subjects.  J Nucl Med 1971; 12(6):387.

11.       Erickson JJ, Watts JR, Kramer CE, Johnston RE, Lagan JE, Baglan RJ, Brill AB  Design  and evaluation of a scanning-bed whole-body counter for use in clinical studies.               Health Physics 1972; 23:63-66.

12.       Lathrop KA, Johnston RE,  Monte Blau, Rothschild EO: Radiation dose to humans  from 75-Se-L-Selenomethionine.  J Nucl Med 1972; Suppl. 6, Pamphlet 9.

13.       Johnston RE, Staab EV, Allen J, Brill AB: Radiation dosimetry associated with the  intrathecal administration of 131-I human serum albumin.  Brit J of Radiology 1972;                      45-444-451.

14.       Brill AB, Sandstead HH, Price RR, Johnston RE, Law DH, Scott WH Jr.: Changes in  body composition after jejunoileal bypass in morbidly obese patients.  The Am J of Surg 1972; 125(1).

15.       McKee LC Jr., Price R, Johnston RE, Heyssel RM, Johnson LE, Brill AB: Longterm studies of iron metabolism in normal males:  Comparison of red blood cell radioac­tivity with while-body counter data.  J Nucl Med 1974; 15(3):156.

16.         Johnston RE, Staab EV:  Radiation dose to the brain from 169-Yb DPTA  in  cisternography.  J Nucl Med 1975; 16(1):101.

17.         Jones JP, Brill AB, Johnston RE:  The validity of an equivalent point source (EPS) assumption used in a quantitative scanning.  Phy Med Biol 1975; 20(3):455.

18.         Behan M, Hudson FR, Ostrowski ST, Johnston RE, Tan KP, Glass HI, Lavender JP:  A  comparison of clinical results in brain scanning using germanium semiconductor                                        detectors and sodium iodide detectors.  Brit J Radiol 1976; 49:618-623.

19.         Pizer SM, Chan FH, Fullton JM, Johnston RE, Lane HH Jr.: A medical imaging   display system – ultrasonography.  Application of Optical Instrumentation in  Medicine V. Vol. 96, 1976, Society of Photo-Optical Instr. Engineers, 354-360.

20.         Kowalsky RJ, Johnston RE, Chan FH:  Dose calibration performance and quality con­trol.  J Nucl Med Technology 1977, 35-40.

21.         Partain CL, Wu.Hai P, Staab EV, Johnston RE: A Multiregional Kinetics Model for Cerebrospinal Fluid.  Radiology, 1978, 127, 705-711.

22.         Shirkhoda A, Johnston RE, Staab EV, and McCartney WH:  Optimal Computerized  Tomogr­phy (CT) Technique for Bone Evaluation, J Computer Assisted Tomography    1979; 3(1):134-139.

23.         Johnston RE:  Moire Patterns in Gamma Camera Images.  Journal of Nuclear  Medicine, 1979, Vol 20, No. 10, Page 1100.

24.         Perry JR, Thompson BG.  Staab EV, Pizer SM, Johnston RE:  Performance features for a PACS display console, Computer 1983; 16(8)51-57.

25.         Rogers DC, Johnston RE, and Pizer SM:  Effect of Ambient Light on Electronically Displayed Medical Images as Measured by Luminance Discrimination Thresholds, J.   Opt. Soc. Am A/Vol 4, No 5, May 1987, 976-983.

26.         Johnston RE:  Display Monitors in Image Communication and Image Analysis.  AAPM monograph, eds. J. Mulvaney, A. Haus, J. Windham,  American Institute of Physics, Inc., 1988, 12 pages.

27.         Creasy JL, Clark RL, Renner JB, Jaques PF, Scatliff JH, Thompson BG, Johnston RE,   and Rogers DC.  Teleradiology in an Academic Setting:  Preliminary Results and  Implications Concerning Resident Teaching and Supervision.   Investiga­tive Radiology, July 1987, 10 pages.

28.         Pizer S, Rogers D, Johnston R, and Beard D:  Effective Presentation of Medical Images on an Electronic Display Station.  RadioGraphics, Nov. 1987, Vol. 7, No. 6, 1274-1276.

29.         Beard DV, Johnston RE, Toki O, Wilcox C: A Study of Radiologists Viewing Multiple Computed Tomography Examinations Using an Eyetracking Device.  J. Digital Imaging, Vol 3, No 4, pp 230-237, Nov. 1990.

30.         Klymenko V, Pizer SM, & Johnston RE.   Visual Psychophysics and Medical Imaging: A Non-parametric Adaptive Method for Rapid Threshold Estimation in Visual Sensitivity Experiments.  IEEE Transactions on Medical Imaging, Vol 9, No 4, pp 353-365, Dec. 1990.

31.         Klymenko V, Johnston RE, Pizer SM: Visual Increment and Decrement Threshold  Curves as a Function of Luminance Range and Noise in Simulated Computed  Tomography Scans. Investigative Radiology, Vol 27, No 8, pp 598-604, August, 1992.

32.         Beard DV, Hemminger BM, Denelsbeck KM, Johnston RE.  How many screens does a   CT  workstation need?  J. Dig. Imag. 1994; 6(1):1-9.

33.            Puff DT, Pisano ED, Johnston RE, Hemminger BM, Muller KE, Burbeck CA, McLelland R, and Pizer SM.  A Method for Determination of Optimal Image Enhancement for the Detection of Mammographic Abnormalities.  J. Dig. Imaging 7(4), 1994: 161-171.

34.            Tsui BMW, Frey EC, Zhao X, Laluch OS, Johnston RE, McCartney WH.  The importance and implementation of accurate 3D compensation methods for quantitative SPECT.  Phy Med Biol 1994; 39, 509-530.

35.            Beard DV, Pisano ED, Denelsbeck KM & Johnston RE.  Eye-Movement During CT Interpretation: Eyetracker Results & Image-Display-Time Implications.  J. Digital Imaging.  Nov 1994: 7(2):189.

36.            Hemminger BM, Johnston RE, Rolland JR, Muller KE.  “Introduction to Perceptual Linearization for Video Display Systems for Medical Image Presentation”.  J Digital Imaging.  Vol 8, No 1, Feb 1995, pp:21-34.

37.            Johnston RE, Mukherji SK, Perry JR, Stabin MG.  “Radiation dose from breast feeding  following administration of Tl-201”. J Nuc Med 37, 12, pp 2079-2082, 1996.

38.            Johnston RE, Washburn D, Pisano E, Burns C, Thomlinson WC, Chapman LD, Arfelli F,  Gmur NF, Zhong Z, Sayers D. “Mammography Phantom Studies with Synchrotron   Radiation”. Radiology 200, 3 Sept 1996, p659-663.

39.            Chapman D, Thomlinson W, Arefeli F, Gmur N, Zhong Z, Menk R, Johnston E,   Washburn D, Pisano E, Sayers D. “Mammography Imaging Studies Using a Laue Analyzer Crystal”. Rev. Sci. Instrum. 1996, 67(9), CD-ROM.

40.            Beard D, Bream P, Pisano E, Conroy P, Johnston E, Braeuning P, McLelland R, Clark R.   “A Pilot Study of Eye Movement During Mammography Interpretation: Eyetracker     Results and Workstation Design Imlications”. J. D. I. 10,1, pp 14-20, 1997.

41.            Pisano ED, Chandramouli J, Hemminger MP,  DeLuca M, Glueck D, Johnston RE,        Muller K, Braeuning MP, Pizer S. “Does Intensity Windowing Improve the Detection of    Simulated Calcifications in Dense Mammograms”? J.D.I. 10(2), p79-84, 1997.

42.            Pisano ED, Chandramouli J, Hemminger BM, Glueck D, Johnston RE, Muller K,  Braeuning PM, Puff, D, Garrett W, Pizer S. “The effect of intensity windowing on the    detection of simulated masses embedded in dense portions of digitized mammograms            In a laboratory setting”. Accepted fro publication by JDI, 1997.

43.            Chapman D, Thomlinson W, Johnston RE, Washburn D, Pisano E, Bmur N, Zhong Z,  Menk R, Arfeli F, Sayers D. “ Diffraction Enhanced X-ray Imaging”. Physics in Medicine    and Biology, Vol 42, No 11, pp 2015-2025, Nov.  1997.


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