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publications - pre-1997


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journal articles:  1995-96 1993-94 1991-92 1989-90 1987-88 1985-86 1983-84 1981-82 pre-1981  

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1995-1996

RD Black, TA Early, GA Johnson: Performance of a high temperature superconducting resonator for high-field imaging. J Magn Reson Series A 113:74-80, 1995. access through Science Direct

JS MacFall, GA Johnson: The architecture of plant vasculature as seen with magnetic resonance microscopy. Can J Botany 72:1561-1573, 1995.

JS MacFall, GA Johnson: 3-dimensional root-growth, turnover, and transport as seen with magnetic resonance microscopy. Plant Physiol 108(2):31, Suppl. June 1995.

R Middleton, RD Black, BT Saam, CD Cates, GP Cofer, B Gunther, W Happer, LW Hedlund, GA Johnson, K Juvan, JS Swartz: MR imaging with hyperpolarized helium gas. Magn Reson Med 33:271-275, 1995.

A Salt, M Henson, S Gewalt, A Keating, J DeMott, O Henson: Detection and quantification of endolymphatic hydrops in the guinea pig cochlea by magnetic resonance microscopy. Hearing Research 88:79-86, 1995.

M Shattuck, R Behringer, GA Johnson, J Georgiadis: Onset of stability of convection in porous media: visualization by magnetic resonance imaging. Phys Rev Lett 75(10):1934-1937, 1995.

RM Summers, LW Hedlund, GP Cofer, MB Gottsman, JF Manibo, GA Johnson: Magnetic resonance microscopy of the rat carotid artery after balloon injury using an implanted imaging coil. Magn Reson Med 33:785–789, 1995.

X Zhou, RR Maronpot, LW Hedlund, GP Cofer, GA Johnson: Detection of bromobenzene-induced hepatocellular necrosis using magnetic resonance microscopy. Magn Reson Med 34:853-857, 1995.

X Zhou, GA Johnson: Magnetic resonance microscopy. The Biomedical Engineering Handbook 1119-1133, 1995.

L Arnder, M Shattuck, R Black: SNR comparison between surface coils and implanted coils. Magnetic Resonance in Medicine 35:727-733, 1996.

R Black, H Middleton, G Cates, G Cofer, B Driehuys, W Happer, L Hedlund, GA Johnson, M Shattuck, J Swartz: In vivo He-3 MR images of guinea pig lungs. Radiology 199:867-870, 1996.

DeGrado TR. Hanson MW. Turkington TG. Delong DM. Brezinski DA. Vallee JP. Hedlund LW. Zhang J. Cobb F. Sullivan MJ. Coleman RE. Estimation of myocardial blood flow for longitudinal studies with 13N-labeled ammonia and positron emission tomography. Journal of Nuclear Cardiology. 3(6 Pt 1):494-507, 1996 Nov-Dec.

M Delnomdedieu, L Hedlund, G Johnson, R Maronpot: Magnetic Resonance Microscopy: A New Tool for the Toxicologic Pathologist. Toxicol Pathol 24(1):36-44, 1996.

R Engelhardt, GA Johnson: Tlr relaxation and its application to MR histology. Magn Reson Med 35:781-786, 1996.

W Hall, H Benveniste, L Hedlund, GA Johnson: A new in vivo method for quantitative analysis of stroke lesions using MR microscopy. NeuroImage 3:158-166, 1996.

LW Hedlund, SL Gewalt, GP Cofer, GA Johnson: MR microscopy of the lung. in: Application of Magentic Resonance to the Study of the Lung, Armonk NY, Futura Publishing Company, Inc., Antionio G. Cutillo, Ed., 401-415, 1996. GA Johnson, LW Hedlund: Functional imaging of the lung. Nature Med 2:1192, 1996.

JR MacFall, HC Charles, RD Black, H Middleton, J Swartz, B Saam, B Dreihuys, C Erickson, W Happer, G Cates, GA Johnson, CE Ravin: Human lung air spaces: potential for MR imaging with hyperpolarized He-3. Radiology 200:553-558, 1996.

B Smith, E Linney, D Huff, GA Johnson: Magnetic microscopy of embryos. CMIG 20:483-490, 1996. B Smith, Magnetic resonance microscopy with cardiovascular applications. Trends Cardiovasc Med 6:247-254, 1996.

J Wilson, M Henson, S Gewalt, A Keating, O Henson, Jr., Reconstructions and cross-sectional area measurements from magnetic resonance microscopic images of the cochlea. The American Journal of Oncology 17:347-353, 1996.

1993-1994

Beaulieu CF, Zhou X, Cofer GP, Johnson GA: Diffusion-weighted MR microscopy with fast spin-echo. Magn Reson Med 30:201-206, 1993.

Black RD, Early TA, Roemer PB, Mueller OM, Mogro-Campero A, Turner LG, Johnson GA: A high temperature superconducting receiver for nuclear magnetic resonance microscopy. Science 259:793-795, 1993.

Gewalt SL, Glover GH, Hedlund LW, Cofer GP, MacFall JR, Johnson GA: MR microscopy of the rat lung using projection reconstruction. Magn Reson Med 29(1):99-106, 1993.

Huesgen CT, Burger PC, Crain BJ, Johnson GA: In vitro MR microscopy of the hippocampus in Alzheimer's disease. Neurology, 43(1):145-152, 1993.

Johnson GA, Benveniste H, Black RD, Hedlund LW, Maronpot RR, Smith BR: Histology by magnetic resonance microscopy. Magn Reson Quarterly 9(1):1-30, 1993.

MacFall JS, Spaine P, Doudrick R, Johnson GA: “Water transport and binding in fusiform rust galls imaged by magnetic resonance microscopy.” Phytopathology 83:1411: 1993.

Veres JS, Cofer GP, Johnson GA: Magnetic resonance imaging of leaves. New Phytologist 123(4):769-774, 1993.

Zhou X, Liang Z-P, Cofer GP, Beaulieu CF, Suddarth SA, Johnson GA: Reduction of ringing and blurring artifacts in fast spin-echo images. J Magn Reson Imag 3:803-807, 1993. Zhou X, Cofer GP, Suddarth SA, Johnson GA: High-field MR microscopy using fast spin-echoes. Magn Reson Med 30:60-67, 1993.

Arnder L, Zhou X, Cofer G, Mills G, Hedlund L, Johnson GA: Magnetic resonance microscopy of the rat carotid artery at 300 MHz. Invest Radiol 29(9):822-826, 1994.

Bokyo OB, Alston SR, Fuller GN, Hulette CM, Johnson GA, Burger PC: Utility of postmortem magnetic resonance (MR) imaging in clinical neuropathology. Arch Pathol Lab Med,118(3): 219-225, 1994.

Henson MM, Henson OW, Gewalt SL, Wilson JL, Johnson GA: Imaging the cochlea by magnetic resonance microscopy. Hearing Res 75:75-80, 1994.

Hsu JC, Johnson GA, Smith WK, Reimer KA, Ideker RE: Magnetic resonance imaging of chronic myocardial infarcts in formalin-fixed human autopsy hearts. Circulation 89:2133-2140, 1994.

MacFall JS, Spaine P, Doudrick R, Johnson GA: Alterations in growth and water-transport processes in fusiform rust galls of pine, determined by magnetic resonance microscopy. Phytopathology 84(3):288-293, 1994.

Mellin AF, Cofer GP, Smith BR, Suddarth SA, Hedlund LW, Johnson GA: Three dimensional magnetic resonance microangiography of rat neurovasculature. Magn Reson Med 32:199-205, 1994.

Smith BR, Johnson GA, Groman EV, Linney E: Magnetic resonance microscopy of mouse embryos. Proc Natl Acad Sci, USA 91:3530-3533, 1994.

Zhou X, Maronpot RR, Mills GI, Cofer GP, Hedlund LW, Johnson GA: Magnetic resonance studies on bromobenzene-induced hepatoxicity. Magn Reson Med 31:619-627, 1994.

1991-1992

Benveniste H, Cofer GP, Dobbins JT, Piantadosi CA, Davis JN, Johnson GA: Quantitative proton magnetic resonance imaging in focal cerebral ischemia in rat brain. Stroke 22:259-268, 1991.

Chotas HG, Van Metter RL, Johnson GA, Ravin CE: Small-object contrast in AMBER and conventional imaging. Radiology 180:853-859, 1991.

Hedlund LW, Maronpot RR, Johnson GA, Cofer GP, Mills GI, Wheeler CT: Magnetic resonance microscopy of toxic renal injury induced by bromoethylamine in rats. Fundamental Appl Toxicol 16:787-797, 1991.

Johnson GA, Maki JH: In vivo measurement of proton diffusion in the presence of coherent motion. Invest Radiol 26(6):540-545, June 1991.

MacFall JR, Maki JH, Johnson GA, Hedlund LW, Cofer GP: Pre- and post-mortem diffusion coefficients in rat neural and muscle tissues. Magn Reson Med 20:89-99, 1991.

MacFall JS, Johnson GA, Kramer PJ: MRI study of water uptake by loblolly pine seedlings. Phytopathology 81:1173, 1991.

MacFall JR, Maki JH, Johnson GA, Hedlund L, Benveniste H, Cofer G: Diffusion/microcirculation MRI in the rat brain. Magn Reson Med 19:305-310, 1991.

Maki JH, Johnson GA: The use of gradient flow compensation to separate diffusion and microcirculatory flow in MRI. Magn Reson Med 17:95-107, 1991.

Maki JH, Benveniste H, MacFall JR, Johnson GA: Maximization of contrast to noise in the separation of diffusion and microcirculatory flow. J Magn Reson Imag 1:39-46, 1991.

Malisch TW, Hedlund LW, Suddarth SA, Johnson GA: MR microscopy at 7 T: the effects of brain iron. J Magn Reson Imag 1:301-305, 1991.

Suddarth SA, Johnson GA: Three-dimensional MR microscopy with large arrays. Magn Reson Med 18(1):132-141, 1991.

Veres JS, Cofer GP, Johnson GA: Distinguishing plant tissues with magnetic resonance microscopy. Am J Botany 78(2):1704-1711, 1991.

Veres JS, Johnson GA, Kramer PJ: In vivo magnetic resonance imaging of Blechnum Ferns: changes in T1 and N(H) during dehydration and rehydration. Am J Botany 78(1):80-88, 1991.

Werrell LM, MacFall JS, Johnson GA: The effects of aluminum toxicity on the water uptake patterns of loblolly pine (Pinus taeda) seedlings as studied by magnetic resonance microscopy (MRM). Phytopathology 81:1201, 1991.

MacFall JS, Kramer PJ, Johnson GA: Comparative water uptake by roots of varied ages of loblolly pine seedlings (Pinus taeda) seedlings. New Phytologist 119:551-560, 1991.

Maki JH, Benveniste H, MacFall JR, Piantadosi CA, Johnson GA: MR imaging of microcirculation in rat brain: correlation with carbon dioxide-induced changes in blood flow. J Magn Reson Imag 1:673-681, 1991.

Banson MB, Cofer GP, Black RD, Johnson GA: A probe for specimen magnetic resonance microscopy. Invest Radiol 27(2):157-164, 1992.

Banson ML, Cofer GP, Hedlund LW, Johnson GA: Surface coil imaging of rat spine at 7.0 T. Magn Reson Imag 10:929-934, 1992.

Benveniste H, Hedlund LW, Johnson GA: Mechanisms of detection of acute cerebral ischemia in rats by diffusion-weighted magnetic resonance microscopy. Stroke 23:746-754, 1992.

Brouwer M, Engle DW, Bonaventura J, Johnson GA: In vivo magnetic resonance imaging of the blue crab, callinectes-sapidus: effect of cadmium accumulation in tissues on proton relaxation properties. J Exp Zoology 263(1):32-40, 1992.

Johnson GA, Hedlund LW, Cofer GP, Suddarth SA: Magnetic resonance microscopy in the life sciences. Revs Magn Reson Med 4(2):187-219, 1992.

MacFall JS, Pfeffer P, Rolin D, MacFall JR, Johnson GA: Observation of the oxygen diffusion barrier in soybean (Glycine max) nodules with magnetic resonance microscopy. Plant Physiol 100:1691-1697, 1992.

Smith BR, Effmann EL, Johnson GA: MR microscopy - chick embryo vasculature. J Magn Reson Imag 2:237-240, 1992.

1989-1990

Baxter GW, Behringer RP, Fagert T, Johnson GA: Pattern formation and time- dependence in flowing sand. Phys Rev Let 62(24):2825-2828, 1989.

Cline HE, Lorensen WE, Herfkens RJ, Johnson GA, Glover GH: Vascular morphology by three-dimensional magnetic resonance imaging. Magnetic Resonance Imaging. 7(1):45-54, Jan-Feb, 1989.

Cofer GP, Brown JM, Johnson GA: In vivo magnetic resonance microscopy at 5 µm. J Magn Reson 83: 608-616, 1989.

Dockery SE, Suddarth SA, Johnson GA: Relaxation measurements at 300 MHz using MR microscopy. Magn Reson in Med 11(2):182-192, 1989.

Farmer THR, Johnson GA, Cofer GP, Maronpot RR, Dixon D, Hedlund LW: Implanted coil MR microscopy of renal pathology. Magn Reson Med 10:310-323, 1989.

Johnson GA, Thompson MB, Cofer GP, Campen D, Maronpot RR: Magnetic resonance imaging of hepatic neoplasms in the rat. Vet Path 26:303-308, 1989. Johnson GA, Maronpot RR: Magnetic resonance microscopy of chemically induced liver foci. Toxicol Pathol 17(4):613-616, 1989.

Maynor CH, Charles HC, Herfkens RJ, Suddarth SA, Johnson GA: Chemical shift imaging of atherosclerosis at 7.0 Tesla. Invest Radiol 24(1):52-60, 1989.

Sherrier RH, Chotas HG, Johnson GA, Chiles C, Ravin CE: Image optimization in a computed radiography/photostimulable phosphor system. J Dig Imag 2(4):212-219, 1989.

Stern, RL, Cline HE, Johnson GA, Ravin CE: Three-dimensional imaging of the thoracic cavity. Invest Radiol 24(4):282-288, 1989.

Farmer THR, Cofer GP, Johnson GA: Maximizing contrast to noise with inductively coupled implanted coils. Invest Radiol 25(5):552-558, 1990.

Brown JM, Kramer PJ, Cofer GP, Johnson GA: Use of nuclear magnetic resonance microscopy for non-invasive observations of root-soil water relations. Theor Appl Climatol 42:229-236, 1990.

Cassel DK, Brown JM, Johnson GA: Computer tomographic analysis of water distribution and flow in porous media. Theor Appl Climatol 42:223-228, 1990.

Johnson GA, Maronpot RR, Redington RW: MR microscopy as a new histologic tool. Invest Radiol 25:1361, 1990.

MacFall JS, Johnson GA, Kramer PJ: Observation of a water-depletion region surrounding loblolly pine roots by magnetic resonance imaging. Proc Natl Acad Sci USA 87:1203-1207, 1990.

MacFall JS, Johnson GA, Kramer PJ: Water content determinations of sand by MRI. Phytopathology 80:989, 1990.

Stern RL, Johnson GA, Ravin CE: Magnetic resonance imaging of the thoracic cavity using a paused 3DFT acquisition technique. Magn Reson Imag 8(6):747-753, 1990.

1987-1988

Brown JM, Fonteno WC, Cassel DK, Johnson GA: Computed tomographic analyses of water distribution in three porous foam media. Soil Sci Soc Am J 5l:1121-1125, l987.

Fram EK, Herfkens RJ, Johnson GA, Glover GH, Karis JP, Shimakawa A, Perkins TG, Pelc NJ: Rapid calculation of Tl using variable flip angle gradient refocused imaging. Magn Reson Imag 5(3):201-208, 1987.

Hedlund LW, Cofer G, Johnson GA: Physiological monitoring during magnetic resonance imaging. Magn Reson Med 5:164, 1987.

Hedlund LW, Cofer G, Suddarth S, Johnson GA: Small animal anesthesia and monitoring during extended MR microscopy. Invest Radiol 22:177, 1987.

Hollett MD, Cofer GP, Johnson GA: In situ MR microscopy. Invest Radiol 22:965-968, l987.

Johnson GA, Thompson MB, Drayer BP: Three-dimensional MRI microscopy of the normal rat brain. Magn Reson Med 4(4):351-365, 1987.

Johnson GA, Brown J, Kramer PJ: Magnetic resonance microscopy of changes in water content in stems of transpiring plants. Proc Natl Acad Sci USA 84:2752-2755, 1987.

Karis JP, Johnson GA, Glover GH: Signal to noise improvements in three-dimensional MR microscopy using limited angle excitations. J Magn Reson 71:24-33, 1987.

MacFall JR, Wehrli FW, Breger RK, Johnson GA: Methodology for the measurement and analysis of relaxation times in proton imaging. Magn Reson Imag 5(3):209-220, 1987.

Matyac CA, Cofer GP, Bailey JE, Johnson GA: In-situ observations of root gall formation using nuclear magnetic resonance imaging. J Nematology, 1987.

McAdams HP, Johnson GA, Suddarth SA, Sherrier RH, Ravin CE: Implementation of adaptive filtration for digital chest imaging. Optical Engn 26:669-674, 1987.

Sherrier RH, Johnson GA: Regionally adaptive histogram equalization of the chest. IEEE-TMI MI-6:1-7, 1987.

Sherrier RH, Chiles C, Johnson GA, Ravin CE: Differentiation of benign from malignant pulmonary nodules with digitized chest radiographs. Radiology 162:645-649, 1987.

Stude RA, Hedlund LW, Johnson GA, Thompson WM: Contrast enhancement of the liver evaluation by automated contiguous pixel search. Invest Radiol 22(2):132-136, Feb. 1987.

Suddarth SA, Johnson GA, Sherrier RH, Ravin CE: Performance of high resolution monitors for digital chest imaging. Med Phys l4:253-257, 1987.

Utz JA, Herfkens RJ, Johnson D, Shimakawa A, Pelc N, Glover G, Johnson GA, Spritzer CE: Two-second magnetic resonance images: Comparison with spin-echo images in 29 patients. AJR 148:629-633, 1987.

Spritzer CE, Vogler JB, Martinez S, Garrett W, Johnson GA, McNamara MJ, Lomas J, Herfkens RJ: MRI of the knee: preliminary results with 3DFT GRASS pulse sequence. AJR 150:597-603, 1988.

Brown JM, Thomas JF, Cofer GP, Johnson GA: Magnetic resonance microscopy of stem tissues of pelargonium hortorum. Botanical Gazette 149(3):253-259, 1988.

Conner WE, Johnson GA, Cofer GP, Dittrich K: Magnetic resonance “microscopy”: In vivo sectioning of a developing insect. Experientia 44:11-12, 1988.

Dixon D, Johnson GA, Cofer GP, Hedlund LW, Maronpot RR: Magnetic resonance imaging (MRI): a new tool in experimental toxicologic pathology. Toxicologic Pathology 16(3):386-391, 1988.

Effmann EL, Johnson GA, Smith BR, Talbott GA, Cofer G: Magnetic resonance microscopy of chick embryos in ovo. Teratology 38:59-65, 1988.

Maki JH, Johnson GA, Cofer GP, MacFall JR: SNR improvement in NMR microscopy using DEFT. J Magn Reson 80:482-492, 1988.

Sherrier RH, Chiles C, Wilkinson WE, Johnson GA, Ravin CE: Effects of image processing on nodule detection rates in digitized chest radiographs: ROC study of observer performance. Radiology l66:447-450, 1988.

Sherrier RH, Suddarth SA, Johnson GA: Film-based digital tomosynthesis of the chest. Optical Engineering 27(8):69l-695, August 1988.

Stern RL, Johnson GA, Ravin CE: Three-dimensional imaging of the chest. Radiology 169:156, 1988.

1985-1986

Blinder RA, Herfkens RJ, Coleman RE, et.al.: High-resolution MRI imaging at 1.5T using surface coils. J Nucl Med 26(5):P8, 1985.

Dunnick NR, Ford KK, Johnson GA, Gunnells JC: Digital intravenous subtractionangiography for investigating renovascular hypertension: A comparison with hypertensive urography. Southern Medical Journal 78:690-693, 1985.

Johnson GA, Danieley N, Ravin CE: Processing alternatives for digital chest imaging. Radiol Clin of North America 23(2):244, 1985.

Johnson GA, Herfkens RJ, Brown MA: In vivo field dependence of tissue relaxation times. Radiology 156: 805-810, 1985.

Sostman HD, Gore JC, Flye MW, Johnson GA, Herfkens RJ: Time course and mechanism of alterations in proton relaxation during liver regeneration in the rat. Hepatology 5:538-543, 1985.

Sherrier RH, Johnson GA, Suddarth SA, Chiles C, Hulka C, Ravin CE: Digital synthesis of lung nodules. Invest Radiol 20(9):933-937, 1985.

Bone SN, Johnson GA, Thompson MB: Three-dimensional MR microscopy of the developing chick embryo. Invest Radiol 21:782-787, 1986.

Brown JM, Johnson GA, Kramer PJ: In vivo magnetic resonance microscopy of changing water content in Pelargonium hortorum roots. Plant Physiology 82:1158-1160, 1986.

Brown JM, Fonteno WC, Cassel DK, Johnson GA: Computer tomography and magnetic resonance imaging of water and root distribution for container-grown plants, Hort Science 21(3):186, 1986.

Brown JM, Fonteno WC, Cassel DK, Johnson GA: Imaging analysis of water distribution in split-root systems of chrysanthemum. Hort Science 21(3):230, 1986.

Drayer BP, Olanow W, Burger P, Johnson GA, Herfkens RJ, Riederer SJ: Parkinson plus syndrome: Diagnosis using high field MR imaging of brain iron. Radiology 159:493-498, 1986.

Drayer B, Burger P, Darwin R, Riederer S, Herfkens R, Johnson GA: Magnetic resonance imaging of brain iron. AJNR 7:373-380, 1986.

Hedlund LW, Johnson GA, Mills GI: Magnetic resonance microscopy of the rat thorax and abdomen. Invest Radiol 21:843-846, 1986.

Hedlund LW, Johnson GA, Karis JP, Effmann EL: MR “microscopy” of the rat thorax. J Comput Assist Tomogr l0(6):948-952, 1986.

Johnson GA, Thompson MB, Gewalt SL, Hayes CE: Nuclear magnetic resonance imaging at microscopic resolution, J Magn Reson 68:129-137, 1986.

Johnson GA, Thompson MB, Drayer BP, Bone SN: Magnetic resonance microscopy in neurologic models, Acta Radiologica – Supplementum 369:267-8, 1986.

McAdams HP, Johnson GA, Suddarth SA, Ravin CE: Histogram directed processing of digital chest images. Invest Radiol 21:253-259, 1986.

1983-1984

Johnson GA, Danieley N, Suddarth S, Dunnick NR: A system for digital videodensitometry. SPIE 419: 222-227, 1983.

Thompson WM, Halvorsen RA, Gedgaudas RK, Kelvin FM, Rice RP, Whitfield S, Johnson GA: High kVp vs. low kVp for T-tube and operative cholangiography. Radiology 146:635-642, 1983.

Brown MA, Johnson GA: Transition metal-chelate complexes as relaxation modifiers in nuclear magnetic resonance. Med Phys 11(1):67-71, 1984.

Brown MA, Johnson GA: Variable field studies of potential paramagnetic NRM contrast agents. Magnet Reson Med 1(2):1119-120, 1984.

Godwin JD, Johnson GA, Fram EK: A phantom for testing ECG-gated computed tomography of the heart. Invest Radiol l9:279-283, 1984.

1981-1982

Hedlund LW, Jones DP, Effmann EL, Johnson GA, Bates WM, Beck JW, Wolfe WW, Putman CE: A computed tomographic study of the dog lung during hemorrhagic shock and resuscitation. Invest Radiol 16:466-472, 1981.

Johnson GA, Ford KK, Heinz R: Digital radiography using the Quantex DS-20. SPIE 273:114-119, 1981.

Johnson GA, Korobkin M, Heinz R: An evaluation of multiplanar imaging capabilities f 4 current CT scanners. SPIE 273:318-321, 1981.

Johnson GA, Ravin CE: Effects of vertical cassette holder design and construction on scatter-to-primary radiation ratios. Radiology 138:461-464, 1981.

O'Foghludha F, Johnson GA: Voltage waveform effects on output and penetration of W- and Mo-anode mammographic tubes. Phys Med Biol 26(2):291-303, 1981.

Ford KK, Heinz R, Johnson GA, Drayer RD, Dubois PJ: Low-cost digital subtraction angiography. Am J Neurorad 3:448-451, 1982.

Godwin GD, Speckman JM, Fram EK, Johnson GA, Putman CE, Korobkin M, Breiman RS: Distinguishing benign from malignant pulmonary nodules by computed tomography. Radiology 144:349-351, 1982.

Johnson GA, Korobkin M: Imaging techniques for multiplanar computed tomography. Radiology 144: 829-834, 1982.

Johnson GA: A practical approach to quality assurance in CT. AJR l39: 427, 1982.

Johnson GA, Godwin JD, Fram EK: Gated multiplanar computed tomography. Radiology 145:195-197, 1982.

Johnson GA: A practical approach to quality assurance in computed tomography. SPIE 347:148, 1982.

Silverman PM, Johnson GA, Korobkin M: High-resolution sagittal and coronal reformatted CT images of the larynx. Invest Radiol 17:634-637, 1982.

Silverman PM, Korobkin M, Thompson WM, Johnson GA, Cole TB, Fisher SM: High resolution, thin-section computed tomography of the larynx (Works in Progress). Radiology 145:723-725, 1982.

Thompson WM, Meyers WC, Shaw M, Bates M, Johnson GA, Hedlund LW: Gallbladder density and iodine concentration in humans during oral cholecstography. A comparison of iopanoic acid and iopronic acid. Invest Radiol 17(6):621-628, 1982.

pre-1981

Johnson GA, Holt DC, Effmann EL: Practical guidelines for specimen radiography, Invest Radiol 15(5): 377, 1980.

Johnson GA, O'Foghludha F: Simulation of mammographic X-ray spectra. Med Phys 7:189, 1980.

Johnson GA, O'Foghludha F: Investigation of transmolybdenum fluorescent anodes for mammography. SPIE 233:158-163, 1980.

Wolbarsht ML, O'Foghludha F, Sliney DH, Guy AW, Smith AA Jr., Johnson GA: Electromagnetic emission from visual display units. A non-hazard. SPIE 229:187-193, 1980.

Johnson GA, Manson EL, O'Foghludha F: Simple method of obtaining the efficiency of Si(Li) detector efficiency. Nucl Instr Methods 151:217-220, 1978.

Johnson GA, O'Foghludha F: An experimental transmolybdenum tube for mammography. Radiology 127: 511-516, 1978.

O'Foghludha F, Johnson GA: Spectral studies in mammography. Proc Soc Phot Instr Eng 96:426, 1976.

Johnson GA, Gordy W: Free radicals by exposure of pyrimidine solids to sodium atoms: an electron spin resonance study. Proc Nat Acad Sci 72:974, 1975.

Marshall SA, Johnson GA: Low field ERS spectrum of trivalent gadolinium in single crystal thorium. Physics Letters 28A, 258, 1968.

 

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