Glyn Johnson

Search results

• 2005

  Diffuse axonal injury in mild traumatic brain injury: a diffusion tensor imaging study

  Inglese, M., Makani, S., Johnson, G., Cohen, B. A., Silver, J. A., Gonen, O. & Grossman, R. I., Aug 2005, In: Journal of Neurosurgery. 103, 2, p. 298-303. 5 p.

  Research output: Contribution to journal › Article › peer-review
  492 Citations (Scopus)

• Dynamic susceptibility contrast perfusion MR imaging of multiple sclerosis lesions: characterizing hemodynamic impairment and inflammatory activity

  Ge, Y., Law, M., Johnson, G., Herbert, J., Babb, J. S., Mannon, L. J. & Grossman, R. I., 2005, In: American Journal of Neuroradiology. 26, 6, p. 1539-1547 8 p.

  Research output: Contribution to journal › Article › peer-review
  159 Citations (Scopus)

• Novel approach to the measurement of absolute cerebral blood volume using vascular-space-occupancy magnetic resonance imaging

  Lu, H., Law, M., Johnson, G., Ge, Y., van Zijl, P. C. M. & Helpern, J. A., Dec 2005, In: Magnetic Resonance in Medicine. 54, 6, p. 1403-1411

  Research output: Contribution to journal › Article › peer-review
  100 Citations (Scopus)
• 2004

  Comparison of cerebral blood volume and vascular permeability from dynamic susceptibility contrast-enhanced perfusion MR imaging with glioma grade

  Law, M., Yang, S., Babb, J. S., Knopp, E. A., Golfinos, J. G., Zagzag, D. & Johnson, G., 2004, In: American Journal of Neuroradiology. 25, 5, p. 746-755 9 p.

  Research output: Contribution to journal › Article › peer-review
  443 Citations (Scopus)

• Conventional MR imaging with simultaneous measurements of cerebral blood volume and vascular permeability in ganglioglioma

  Law, M., Meltzer, D. E., Wetzel, S. G., Yang, S., Knopp, E. A., Golfinos, J. & Johnson, G., Jun 2004, In: Magnetic Resonance Imaging. 22, 5, p. 599-606

  Research output: Contribution to journal › Article › peer-review
  25 Citations (Scopus)

• Differentiating surgical from non-surgical lesions using perfusion MR imaging and proton MR spectroscopic imaging

  Law, M., Hamburger, M., Johnson, G., Inglese, M., Londono, A., Golfinos, J., Zagzag, D. & Knopp, E. A., Dec 2004, In: Technology in Cancer Research & Treatment. 3, 6, p. 557-565

  Research output: Contribution to journal › Article › peer-review
  40 Citations (Scopus)

• Diffusion-tensor MR imaging of intracranial neoplasia and associated peritumoral edema: introduction of the tumor infiltration index

  Lu, S., Ahn, D., Johnson, G., Law, M., Zagzag, D. & Grossman, R. I., Jul 2004, In: Radiology. 232, 1, p. 221-228 8 p.

  Research output: Contribution to journal › Article › peer-review
  290 Citations (Scopus)

• Dynamic susceptibility contrast-enhanced perfusion and conventional MR imaging findings for adult patients with cerebral primitive neuroectodermal tumors

  Law, M., Kazmi, K., Wetzel, S., Wang, E., Iacob, C., Zagzag, D., Golfinos, J. G. & Johnson, G., 2004, In: American Journal of Neuroradiology. 25, 6, p. 997-1005 9 p.

  Research output: Contribution to journal › Article › peer-review
  27 Citations (Scopus)

• Measuring blood volume and vascular transfer constant from dynamic, T*2-weighted contrast-enhanced MRI

  Johnson, G., Wetzel, S. G., Cha, S., Babb, J. & Tofts, P. S., May 2004, In: Magnetic Resonance in Medicine. 51, 5, p. 961-968

  Research output: Contribution to journal › Article › peer-review
  126 Citations (Scopus)

• Microvascular abnormality in relapsing-remitting multiple sclerosis: perfusion MR imaging findings in normal-appearing white matter

  Law, M., Saindane, A. M., Ge, Y., Babb, J. S., Johnson, G., Mannon, L. J., Herbert, J. & Grossman, R. I., Jul 2004, In: Radiology. 231, 3, p. 645-652 8 p.

  Research output: Contribution to journal › Article › peer-review
  212 Citations (Scopus)

• Preferential occult injury of corpus callosum in multiple sclerosis measured by diffusion tensor imaging

  Ge, Y., Law, M., Johnson, G., Herbert, J., Babb, J. S., Mannon, L. J. & Grossman, R. I., Jul 2004, In: Journal of Magnetic Resonance Imaging. 20, 1, p. 1-7

  Research output: Contribution to journal › Article › peer-review
  88 Citations (Scopus)
• 2003

  Dynamic, contrast-enhanced perfusion MRI in mouse gliomas: correlation with histopathology

  Cha, S., Johnson, G., Wadghiri, Y. Z., Jin, O., Babb, J., Zagzag, D. & Turnbull, D. H., 2003, In: Magnetic Resonance in Medicine. 49, 5, p. 848-855

  Research output: Contribution to journal › Article › peer-review
  179 Citations (Scopus)

• Dynamic contrast-enhanced perfusion MR imaging measurements of endothelial permeability: differentiation between atypical and typical meningiomas

  Yang, S., Law, M., Zagzag, D., Wu, H. H., Cha, S., Golfinos, J. G., Knopp, E. A. & Johnson, G., 2003, In: American Journal of Neuroradiology. 24, 8, p. 1554-1559 6 p.

  Research output: Contribution to journal › Article › peer-review
  134 Citations (Scopus)

• Glioma grading: sensitivity, specificity, and predictive values of perfusion MR imaging and proton MR spectroscopic imaging compared with conventional MR imaging

  Law, M., Yang, S., Wang, H., Babb, J. S., Johnson, G., Cha, S., Knopp, E. A. & Zagzag, D., 2003, In: American Journal of Neuroradiology. 24, 10, p. 1989-1998

  Research output: Contribution to journal › Article › peer-review
  958 Citations (Scopus)

• Imaging of the intracranial venous system with a contrast-enhanced volumetric interpolated examination

  Wetzel, S. G., Law, M., Lee, V. S., Cha, S., Johnson, G. & Nelson, K., May 2003, In: European Radiology. 13, 5, p. 1010-1018 9 p.

  Research output: Contribution to journal › Article › peer-review
  29 Citations (Scopus)

• Peritumoral diffusion tensor imaging of high-grade gliomas and metastatic brain tumors

  Lu, S., Ahn, D., Johnson, G. & Cha, S., 2003, In: American Journal of Neuroradiology. 24, 5, p. 937-941 5 p.

  Research output: Contribution to journal › Article › peer-review
  356 Citations (Scopus)
• 2002

  Frontal white matter microstructure, aggression, and impulsivity in men with schizophrenia: a preliminary study

  Hoptman, M. J., Volavka, J., Johnson, G., Weiss, E., Bilder, R. M. & Lim, K. O., 1 Jul 2002, In: Biological Psychiatry. 52, 1, p. 9-14

  Research output: Contribution to journal › Article › peer-review
  198 Citations (Scopus)

• High-grade gliomas and solitary metastases: differentiation by using perfusion and proton spectroscopic MR imaging

  Law, M., Cha, S., Knopp, E. A., Johnson, G., Arnett, J. & Litt, A. W., Mar 2002, In: Radiology. 222, 3, p. 715-721 7 p.

  Research output: Contribution to journal › Article › peer-review
  505 Citations (Scopus)

• Intracranial mass lesions: dynamic contrast-enhanced susceptibility-weighted echo-planar perfusion MR imaging

  Cha, S., Knopp, E. A., Johnson, G., Wetzel, S. G., Litt, A. W. & Zagzag, D., Apr 2002, In: Radiology. 223, 1, p. 11-29 19 p.

  Research output: Contribution to journal › Article › peer-review
  464 Citations (Scopus)

• Preoperative assessment of intracranial tumors with perfusion MR and a volumetric interpolated examination: a comparative study with DSA

  Wetzel, S. G., Cha, S., Law, M., Johnson, G., Golfinos, J., Lee, P. & Nelson, P. K., 2002, In: American Journal of Neuroradiology. 23, 10, p. 1767-1774 8 p.

  Research output: Contribution to journal › Article › peer-review
  27 Citations (Scopus)

• Relative cerebral blood volume measurements in intracranial mass lesions: interobserver and intraobserver reproducibility study

  Wetzel, S. G., Cha, S., Johnson, G., Lee, P., Law, M., Kasow, D. L., Pierce, S. D. & Xue, X., Sep 2002, In: Radiology. 224, 3, p. 797-803

  Research output: Contribution to journal › Article › peer-review
  212 Citations (Scopus)

• Three-dimensional, T1-weighted gradient-echo imaging of the brain with a volumetric interpolated examination

  Wetzel, S. G., Johnson, G., Tan, A. G. S., Cha, S., Knopp, E. A., Lee, V. S., Thomasson, D. & Rofsky, N. M., 2002, In: American Journal of Neuroradiology. 23, 6, p. 995-1002 8 p.

  Research output: Contribution to journal › Article › peer-review
  79 Citations (Scopus)
• 2001

  Dynamic contrast-enhanced T2*-weighted MR imaging of tumefactive demyelinating lesions

  Cha, S., Pierce, S., Knopp, E. A., Johnson, G., Yang, C., Ton, A., Litt, A. W. & Zagzag, D., 2001, In: American Journal of Neuroradiology. 22, 6, p. 1109-1116 8 p.

  Research output: Contribution to journal › Article › peer-review
  159 Citations (Scopus)

• MR renography with low-dose gadopentetate dimeglumine: feasibility

  Lee, V. S., Rusinek, H., Johnson, G., Rofsky, N. M., Krinsky, G. A. & Weinreb, J. C., Nov 2001, In: Radiology. 221, 2, p. 371-379

  Research output: Contribution to journal › Article › peer-review
  61 Citations (Scopus)

• Real-time interactive duplex MR measurements: application in neurovascular imaging

  Wetzel, S. G., Lee, V. S., Tan, A. G. S., Heid, O., Cha, S., Johnson, G. & Rofsky, N. M., Sep 2001, In: American Journal of Roentgenology. 177, 3, p. 703-707 5 p.

  Research output: Contribution to journal › Article › peer-review
  10 Citations (Scopus)

• Sensitivity and performance time in MRI dephasing artifact reduction methods

  Wadghiri, Y. Z., Johnson, G. & Turnbull, D. H., Mar 2001, In: Magnetic Resonance in Medicine. 45, 3, p. 470-476

  Research output: Contribution to journal › Article › peer-review
  28 Citations (Scopus)

• White matter abnormalities in HIV-1 infection: a diffusion tensor imaging study

  Pomara, N., Crandall, D. T., Choi, S. J., Johnson, G. & Lim, K. O., Feb 2001, In: Psychiatry Research. 106, 1, p. 15-24 10 p.

  Research output: Contribution to journal › Article › peer-review
  186 Citations (Scopus)
• 2000

  Angiotensin-converting enzyme inhibitor-enhanced phase-contrast MR imaging to measure renal artery velocity waveforms in patients with suspected renovascular hypertension

  Lee, V. S., Rofsky, N. M., Ton, A. T., Johnson, G., Krinsky, G. A. & Weinreb, J. C., Feb 2000, In: American Journal of Roentgenology. 174, 2, p. 499-508

  Research output: Contribution to journal › Article › peer-review
  12 Citations (Scopus)

• Dynamic contrast-enhanced T2-weighted MR imaging of recurrent malignant gliomas treated with thalidomide and carboplatin

  Cha, S., Knopp, E. A., Johnson, G., Litt, A., Glass, J., Gruber, M. L., Lu, S. & Zagzag, D., 2000, In: American Journal of Neuroradiology. 21, 5, p. 881-890 10 p.

  Research output: Contribution to journal › Article › peer-review
  118 Citations (Scopus)

• Dynamic susceptibility contrast MR imaging: Correlation of signal intensity changes with cerebral blood volume measurements

  Cha, S., Lu, S., Johnson, G. & Knopp, E. A., Feb 2000, In: Journal of Magnetic Resonance Imaging. 11, 2, p. 114-119 6 p.

  Research output: Contribution to journal › Article › peer-review
  65 Citations (Scopus)
• 1999

  2D multislice and 3D MRI sequences are often equally sensitive

  Johnson, G., Wadghiri, Y. Z. & Turnbull, D. H., Apr 1999, In: Magnetic Resonance in Medicine. 41, 4, p. 824-828 5 p.

  Research output: Contribution to journal › Article › peer-review
  42 Citations (Scopus)

• Fat suppression in MR imaging: techniques and pitfalls

  Delfaut, E. M., Beltran, J., Johnson, G., Rousseau, J., Marchandise, X. & Cotten, A., Mar 1999, In: Radiographics. 19, 2, p. 373-382 10 p.

  Research output: Contribution to journal › Article › peer-review
  359 Citations (Scopus)

• Glial neoplasms: dynamic contrast-enhanced T2*-weighted MR imaging

  Knopp, E. A., Cha, S., Johnson, G., Mazumdar, A., Golfinos, J. G., Zagzag, D., Miller, D. C., Kelly, P. J. & Kricheff, I. I., Jun 1999, In: Radiology. 211, 3, p. 791-798 8 p.

  Research output: Contribution to journal › Article › peer-review
  552 Citations (Scopus)

• MR perfusion imaging in human brain using the UNFAIR technique. Un-inverted flow-sensitive alternating inversion recovery

  Tanabe, J. L., Yongbi, M., Branch, C., Hrabe, J., Johnson, G. & Helpern, J. A., Jun 1999, In: Journal of Magnetic Resonance Imaging. 9, 6, p. 761-767 7 p.

  Research output: Contribution to journal › Article › peer-review
  25 Citations (Scopus)

• Thoracic aorta: rapid black-blood MR imaging with half-Fourier rapid acquisition with relaxation enhancement with or without electrocardiographic triggering

  Stemerman, D. H., Krinsky, G. A., Lee, V. S., Johnson, G., Yang, B. M. & Rofsky, N. M., Oct 1999, In: Radiology. 213, 1, p. 185-191

  Research output: Contribution to journal › Article › peer-review
  31 Citations (Scopus)
• 1997

  Peripheral vascular disease evaluated with reduced-dose gadolinium-enhanced MR angiography

  Rofsky, N. M., Johnson, G., Adelman, M. A., Rosen, R. J., Krinsky, G. A. & Weinreb, J. C., Oct 1997, In: Radiology. 205, 1, p. 163-169 7 p.

  Research output: Contribution to journal › Article › peer-review
  149 Citations (Scopus)

• Segmentation analysis in functional MRI: activation sensitivity and gray-matter specificity of RARE and FLASH

  Hutchinson, M., Rusinek, H., Nenov, V. I., Feinberg, D. A. & Johnson, G., 1997, In: Journal of Magnetic Resonance Imaging. 7, 2, p. 361-364 4 p.

  Research output: Contribution to journal › Article › peer-review
  5 Citations (Scopus)

• Suppression of venous signal in time-of-flight MR angiography of the lower extremities after administration of gadopentetate dimeglumine

  Rofsky, N. M., Purdy, D. E., Johnson, G., DeCorato, D. R., Earls, J. P., Krinsky, G. & Weinreb, J. C., Jan 1997, In: Radiology. 202, 1, p. 177-182 6 p.

  Research output: Contribution to journal › Article › peer-review
  12 Citations (Scopus)

• Venous aneurysms: MR diagnosis with the "layered gadolinium" sign

  Krinsky, G., Johnson, G., Rofsky, N., Shapiro, R., Yang, B. & Weinreb, J., Aug 1997, In: Journal of Computer Assisted Tomography. 21, 4, p. 623-627 5 p.

  Research output: Contribution to journal › Article › peer-review
  21 Citations (Scopus)
• 1996

  A comparison of phase encoding ordering schemes in T2-weighted GRASE imaging

  Johnson, G., Feinberg, D. A. & Venkataraman, V., Sep 1996, In: Magnetic Resonance in Medicine. 36, 3, p. 427-435

  Research output: Contribution to journal › Article › peer-review
  21 Citations (Scopus)

• Multiple-window spectrum estimation applied to in vivo NMR spectroscopy

  Johnson, G., Thomson, D. J., Wu, E. X. & Williams, S. C. R., Feb 1996, In: Journal of Magnetic Resonance, Series B. 110, 2, p. 138-149 12 p.

  Research output: Contribution to journal › Article › peer-review
  9 Citations (Scopus)

• Single-shot GRASE imaging with short effective TEs

  Johnson, G., Feinberg, D. A. & Venkataraman, V., 1996, In: Journal of Magnetic Resonance Imaging. 6, 6, p. 944-947

  Research output: Contribution to journal › Article › peer-review

  10 Citations (Scopus)
• 1995

  A methodology for co-registering abdominal MR images over multiple breath-holds

  Feinberg, D. A. & Johnson, G., Nov 1995, In: Magnetic Resonance in Medicine. 34, 5, p. 770-774

  Research output: Contribution to journal › Article › peer-review
  6 Citations (Scopus)

• GRASE improves spatial resolution in single shot imaging

  Feinberg, D. A., Kiefer, B. & Johnson, G., Apr 1995, In: Magnetic Resonance in Medicine. 33, 4, p. 529-533 5 p.

  Research output: Contribution to journal › Article › peer-review
  40 Citations (Scopus)

• Increased flexibility in GRASE imaging by k space-banded phase encoding

  Feinberg, D. A., Johnson, G. & Kiefer, B., Aug 1995, In: Magnetic Resonance in Medicine. 34, 2, p. 149-155 7 p.

  Research output: Contribution to journal › Article › peer-review
  21 Citations (Scopus)

• Multiple breath-hold averaging (MBA) method for increased SNR in abdominal MRI

  Feinberg, D. A., Rofsky, N. M. & Johnson, G., Dec 1995, In: Magnetic Resonance in Medicine. 34, 6, p. 905-909 5 p.

  Research output: Contribution to journal › Article › peer-review
  13 Citations (Scopus)
• 1994

  A new 3D localization technique using quadratic field gradients

  Wu, E. X., Johnson, G., Hilal, S. K. & Cho, Z. H., Aug 1994, In: Magnetic Resonance in Medicine. 32, 2, p. 242-245

  Research output: Contribution to journal › Article › peer-review
  8 Citations (Scopus)

• Magnetic resonance imaging in degenerative ataxic disorders

  Ormerod, I. E., Harding, A. E., Miller, D. H., Johnson, G., MacManus, D., du Boulay, E. P., Kendall, B. E., Moseley, I. F. & McDonald, W. I., 1994, In: Journal of Neurology, Neurosurgery and Psychiatry. 57, 1, p. 51-57

  Research output: Contribution to journal › Article › peer-review
  76 Citations (Scopus)

• Optimized phase scrambling for RF phase encoding

  Johnson, G., Wu, E. X. & Hilal, S. K., Jan 1994, In: Journal of Magnetic Resonance, Series B. 103, 1, p. 59-63

  Research output: Contribution to journal › Article › peer-review
  8 Citations (Scopus)

• Sensitivity optimization of echo times and data sampling times for spin-echo spectroscopy

  Johnson, G. & Wu, E. X., Nov 1994, In: Journal of Magnetic Resonance, Series B. 105, 3, p. 238-241

  Research output: Contribution to journal › Article › peer-review
  2 Citations (Scopus)