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Keywords
Last Name
Institution

connectionMichael Howard Lev, M.D.

Co-Authors

This is a "connection" page, showing publications co-authored by Michael Lev and Pamela Schaefer.

 
Connection Strength
 
 
 
6.854
 
  1. Schaefer PW, Souza L, Kamalian S, Hirsch JA, Yoo AJ, Kamalian S, Gonzalez RG, Lev MH. Limited reliability of computed tomographic perfusion acute infarct volume measurements compared with diffusion-weighted imaging in anterior circulation stroke. Stroke. 2015 Feb; 46(2):419-24.
    View in: PubMed
    Score: 0.837
  2. Schaefer PW, Mui K, Kamalian S, Nogueira RG, Gonzalez RG, Lev MH. Avoiding "pseudo-reversibility" of CT-CBV infarct core lesions in acute stroke patients after thrombolytic therapy: the need for algorithmically "delay-corrected" CT perfusion map postprocessing software. Stroke. 2009 Aug; 40(8):2875-8.
    View in: PubMed
    Score: 0.570
  3. Schaefer PW, Barak ER, Kamalian S, Gharai LR, Schwamm L, Gonzalez RG, Lev MH. Quantitative assessment of core/penumbra mismatch in acute stroke: CT and MR perfusion imaging are strongly correlated when sufficient brain volume is imaged. Stroke. 2008 Nov; 39(11):2986-92.
    View in: PubMed
    Score: 0.539
  4. Schaefer PW, Roccatagliata L, Ledezma C, Hoh B, Schwamm LH, Koroshetz W, Gonzalez RG, Lev MH. First-pass quantitative CT perfusion identifies thresholds for salvageable penumbra in acute stroke patients treated with intra-arterial therapy. AJNR Am J Neuroradiol. 2006 Jan; 27(1):20-5.
    View in: PubMed
    Score: 0.449
  5. Lev MH, Schaefer PW. Subarachnoid gadolinium enhancement mimicking subarachnoid hemorrhage on FLAIR MR images. Fluid-attenuated inversion recovery. AJR Am J Roentgenol. 1999 Nov; 173(5):1414-5.
    View in: PubMed
    Score: 0.293
  6. Rehani B, Hirsch JA, Dillon WP, González RG, Lev MH, Schaefer PW. Multiple Procedure Payment Reduction: Health Policy Update. AJNR Am J Neuroradiol. 2015 Nov; 36(11):2007-9.
    View in: PubMed
    Score: 0.220
  7. Timpone VM, Lev MH, Kamalian S, Morais LT, Franceschi AM, Souza L, Schaefer PW. Percentage insula ribbon infarction of >50% identifies patients likely to have poor clinical outcome despite small DWI infarct volume. AJNR Am J Neuroradiol. 2015 Jan; 36(1):40-5.
    View in: PubMed
    Score: 0.205
  8. Payabvash S, Souza LC, Kamalian S, Wang Y, Passanese J, Kamalian S, Fung SH, Halpern EF, Schaefer PW, Gonzalez RG, Furie KL, Lev MH. Location-weighted CTP analysis predicts early motor improvement in stroke: a preliminary study. Neurology. 2012 Jun 05; 78(23):1853-9.
    View in: PubMed
    Score: 0.174
  9. Souza LC, Yoo AJ, Chaudhry ZA, Payabvash S, Kemmling A, Schaefer PW, Hirsch JA, Furie KL, González RG, Nogueira RG, Lev MH. Malignant CTA collateral profile is highly specific for large admission DWI infarct core and poor outcome in acute stroke. AJNR Am J Neuroradiol. 2012 Aug; 33(7):1331-6.
    View in: PubMed
    Score: 0.172
  10. Kamalian S, Kamalian S, Konstas AA, Maas MB, Payabvash S, Pomerantz SR, Schaefer PW, Furie KL, González RG, Lev MH. CT perfusion mean transit time maps optimally distinguish benign oligemia from true "at-risk" ischemic penumbra, but thresholds vary by postprocessing technique. AJNR Am J Neuroradiol. 2012 Mar; 33(3):545-9.
    View in: PubMed
    Score: 0.170
  11. Souza LC, Payabvash S, Wang Y, Kamalian S, Schaefer P, Gonzalez RG, Furie KL, Lev MH. Admission CT perfusion is an independent predictor of hemorrhagic transformation in acute stroke with similar accuracy to DWI. Cerebrovasc Dis. 2012; 33(1):8-15.
    View in: PubMed
    Score: 0.169
  12. Yoo AJ, Hu R, Hakimelahi R, Lev MH, Nogueira RG, Hirsch JA, González RG, Schaefer PW. CT angiography source images acquired with a fast-acquisition protocol overestimate infarct core on diffusion weighted images in acute ischemic stroke. J Neuroimaging. 2012 Oct; 22(4):329-35.
    View in: PubMed
    Score: 0.166
  13. Kamalian S, Kamalian S, Maas MB, Goldmacher GV, Payabvash S, Akbar A, Schaefer PW, Furie KL, Gonzalez RG, Lev MH. CT cerebral blood flow maps optimally correlate with admission diffusion-weighted imaging in acute stroke but thresholds vary by postprocessing platform. Stroke. 2011 Jul; 42(7):1923-8.
    View in: PubMed
    Score: 0.162
  14. Payabvash S, Souza LC, Wang Y, Schaefer PW, Furie KL, Halpern EF, Gonzalez RG, Lev MH. Regional ischemic vulnerability of the brain to hypoperfusion: the need for location specific computed tomography perfusion thresholds in acute stroke patients. Stroke. 2011 May; 42(5):1255-60.
    View in: PubMed
    Score: 0.162
  15. Turkbey B, Akpinar E. CT angiography in head and neck trauma. Radiology. 2010 Jun; 255(3):1008-9; author reply 1009.
    View in: PubMed
    Score: 0.152
  16. Ozsunar Y, Mullins ME, Kwong K, Hochberg FH, Ament C, Schaefer PW, Gonzalez RG, Lev MH. Glioma recurrence versus radiation necrosis? A pilot comparison of arterial spin-labeled, dynamic susceptibility contrast enhanced MRI, and FDG-PET imaging. Acad Radiol. 2010 Mar; 17(3):282-90.
    View in: PubMed
    Score: 0.148
  17. Romero JM, Babiarz LS, Forero NP, Murphy EK, Schaefer PW, Gonzalez RG, Lev MH. Arterial wall enhancement overlying carotid plaque on CT angiography correlates with symptoms in patients with high grade stenosis. Stroke. 2009 May; 40(5):1894-6.
    View in: PubMed
    Score: 0.139
  18. Babiarz LS, Romero JM, Murphy EK, Brobeck B, Schaefer PW, González RG, Lev MH. Contrast-enhanced MR angiography is not more accurate than unenhanced 2D time-of-flight MR angiography for determining > or = 70% internal carotid artery stenosis. AJNR Am J Neuroradiol. 2009 Apr; 30(4):761-8.
    View in: PubMed
    Score: 0.139
  19. Schaefer PW, Yoo AJ, Bell D, Barak ER, Romero JM, Nogueira RG, Lev MH, Schwamm LH, Gonzalez RG, Hirsch JA. CT angiography-source image hypoattenuation predicts clinical outcome in posterior circulation strokes treated with intra-arterial therapy. Stroke. 2008 Nov; 39(11):3107-9.
    View in: PubMed
    Score: 0.135
  20. Rosenthal ES, Schwamm LH, Roccatagliata L, Coutts SB, Demchuk AM, Schaefer PW, Gonzalez RG, Hill MD, Halpern EF, Lev MH. Role of recanalization in acute stroke outcome: rationale for a CT angiogram-based "benefit of recanalization" model. AJNR Am J Neuroradiol. 2008 Sep; 29(8):1471-5.
    View in: PubMed
    Score: 0.133
  21. Lev MH, Gonzalez RG, Schaefer PW, Koroshetz WJ, Dillon WP, Wintermark M. Cerebral blood flow thresholds in acute stroke triage. Stroke. 2006 Sep; 37(9):2202; author reply 2203.
    View in: PubMed
    Score: 0.117
  22. Schaefer PW, Copen WA, Lev MH, Gonzalez RG. Diffusion-weighted imaging in acute stroke. Magn Reson Imaging Clin N Am. 2006 May; 14(2):141-68.
    View in: PubMed
    Score: 0.115
  23. Mullins ME, Lev MH, Schellingerhout D, Gonzalez RG, Schaefer PW. Intracranial hemorrhage complicating acute stroke: how common is hemorrhagic stroke on initial head CT scan and how often is initial clinical diagnosis of acute stroke eventually confirmed? AJNR Am J Neuroradiol. 2005 Oct; 26(9):2207-12.
    View in: PubMed
    Score: 0.110
  24. Mullins ME, Barest GD, Schaefer PW, Hochberg FH, Gonzalez RG, Lev MH. Radiation necrosis versus glioma recurrence: conventional MR imaging clues to diagnosis. AJNR Am J Neuroradiol. 2005 Sep; 26(8):1967-72.
    View in: PubMed
    Score: 0.110
  25. Schaefer PW, Copen WA, Lev MH, Gonzalez RG. Diffusion-weighted imaging in acute stroke. Neuroimaging Clin N Am. 2005 Aug; 15(3):503-30, ix-x.
    View in: PubMed
    Score: 0.109
  26. Lev MH, Ozsunar Y, Henson JW, Rasheed AA, Barest GD, Harsh GR, Fitzek MM, Chiocca EA, Rabinov JD, Csavoy AN, Rosen BR, Hochberg FH, Schaefer PW, Gonzalez RG. Glial tumor grading and outcome prediction using dynamic spin-echo MR susceptibility mapping compared with conventional contrast-enhanced MR: confounding effect of elevated rCBV of oligodendrogliomas [corrected]. AJNR Am J Neuroradiol. 2004 Feb; 25(2):214-21.
    View in: PubMed
    Score: 0.098
  27. Sanelli PC, Lev MH, Gonzalez RG, Schaefer PW. Unique linear and nodular MR enhancement pattern in schistosomiasis of the central nervous system: report of three patients. AJR Am J Roentgenol. 2001 Dec; 177(6):1471-4.
    View in: PubMed
    Score: 0.085
  28. Leslie-Mazwi TM, Hirsch JA, Falcone GJ, Schaefer PW, Lev MH, Rabinov JD, Rost NS, Schwamm L, González RG. Endovascular Stroke Treatment Outcomes After Patient Selection Based on Magnetic Resonance Imaging and Clinical Criteria. JAMA Neurol. 2016 Jan; 73(1):43-9.
    View in: PubMed
    Score: 0.056
  29. Hirsch JA, Manchikanti L, Albuquerque FC, Leslie-Mazwi TM, Lev MH, Linfante I, Mocco J, Rai AT, Schaefer PW, Tarr RW. The peer review process: a primer for JNIS readers. J Neurointerv Surg. 2017 Jul; 9(e1):e3-e6.
    View in: PubMed
    Score: 0.053
  30. Mehan WA, González RG, Buchbinder BR, Chen JW, Copen WA, Gupta R, Hirsch JA, Hunter GJ, Hunter S, Johnson JM, Kelly HR, Larvie M, Lev MH, Pomerantz SR, Rapalino O, Rincon S, Romero JM, Schaefer PW, Shah V. Optimal brain MRI protocol for new neurological complaint. PLoS One. 2014; 9(10):e110803.
    View in: PubMed
    Score: 0.052
  31. Hakimelahi R, Vachha BA, Copen WA, Papini GD, He J, Higazi MM, Lev MH, Schaefer PW, Yoo AJ, Schwamm LH, González RG. Time and diffusion lesion size in major anterior circulation ischemic strokes. Stroke. 2014 Oct; 45(10):2936-41.
    View in: PubMed
    Score: 0.051
  32. Wintermark M, Sanelli PC, Albers GW, Bello JA, Derdeyn CP, Hetts SW, Johnson MH, Kidwell CS, Lev MH, Liebeskind DS, Rowley HA, Schaefer PW, Sunshine JL, Zaharchuk G, Meltzer CC. Imaging recommendations for acute stroke and transient ischemic attack patients: a joint statement by the American Society of Neuroradiology, the American College of Radiology and the Society of NeuroInterventional Surgery. J Am Coll Radiol. 2013 Nov; 10(11):828-32.
    View in: PubMed
    Score: 0.048
  33. Wintermark M, Sanelli PC, Albers GW, Bello J, Derdeyn C, Hetts SW, Johnson MH, Kidwell C, Lev MH, Liebeskind DS, Rowley H, Schaefer PW, Sunshine JL, Zaharchuk G, Meltzer CC. Imaging recommendations for acute stroke and transient ischemic attack patients: A joint statement by the American Society of Neuroradiology, the American College of Radiology, and the Society of NeuroInterventional Surgery. AJNR Am J Neuroradiol. 2013 Nov-Dec; 34(11):E117-27.
    View in: PubMed
    Score: 0.047
  34. Wintermark M, Albers GW, Broderick JP, Demchuk AM, Fiebach JB, Fiehler J, Grotta JC, Houser G, Jovin TG, Lees KR, Lev MH, Liebeskind DS, Luby M, Muir KW, Parsons MW, von Kummer R, Wardlaw JM, Wu O, Yoo AJ, Alexandrov AV, Alger JR, Aviv RI, Bammer R, Baron JC, Calamante F, Campbell BC, Carpenter TC, Christensen S, Copen WA, Derdeyn CP, Haley EC, Khatri P, Kudo K, Lansberg MG, Latour LL, Lee TY, Leigh R, Lin W, Lyden P, Mair G, Menon BK, Michel P, Mikulik R, Nogueira RG, Ostergaard L, Pedraza S, Riedel CH, Rowley HA, Sanelli PC, Sasaki M, Saver JL, Schaefer PW, Schellinger PD, Tsivgoulis G, Wechsler LR, White PM, Zaharchuk G, Zaidat OO, Davis SM, Donnan GA, Furlan AJ, Hacke W, Kang DW, Kidwell C, Thijs VN, Thomalla G, Warach SJ. Acute Stroke Imaging Research Roadmap II. Stroke. 2013 Sep; 44(9):2628-39.
    View in: PubMed
    Score: 0.047
  35. González RG, Copen WA, Schaefer PW, Lev MH, Pomerantz SR, Rapalino O, Chen JW, Hunter GJ, Romero JM, Buchbinder BR, Larvie M, Hirsch JA, Gupta R. The Massachusetts General Hospital acute stroke imaging algorithm: an experience and evidence based approach. J Neurointerv Surg. 2013 May; 5 Suppl 1:i7-12.
    View in: PubMed
    Score: 0.046
  36. Hakimelahi R, Yoo AJ, He J, Schwamm LH, Lev MH, Schaefer PW, González RG. Rapid identification of a major diffusion/perfusion mismatch in distal internal carotid artery or middle cerebral artery ischemic stroke. BMC Neurol. 2012 Nov 05; 12:132.
    View in: PubMed
    Score: 0.045
  37. Yoo AJ, Chaudhry ZA, Nogueira RG, Lev MH, Schaefer PW, Schwamm LH, Hirsch JA, González RG. Infarct volume is a pivotal biomarker after intra-arterial stroke therapy. Stroke. 2012 May; 43(5):1323-30.
    View in: PubMed
    Score: 0.043
  38. Pulli B, Schaefer PW, Hakimelahi R, Chaudhry ZA, Lev MH, Hirsch JA, González RG, Yoo AJ. Acute ischemic stroke: infarct core estimation on CT angiography source images depends on CT angiography protocol. Radiology. 2012 Feb; 262(2):593-604.
    View in: PubMed
    Score: 0.042
  39. Delgado Almandoz JE, Kelly HR, Schaefer PW, Brouwers HB, Yoo AJ, Stone MJ, Goldstein JN, Rosand J, Lev MH, Gonzalez RG, Romero JM. CT angiography spot sign predicts in-hospital mortality in patients with secondary intracerebral hemorrhage. J Neurointerv Surg. 2012 Nov; 4(6):442-7.
    View in: PubMed
    Score: 0.042
  40. Delgado Almandoz JE, Su HS, Schaefer PW, Goldstein JN, Pomerantz SR, Lev MH, González RG, Romero JM. Frequency of adequate contrast opacification of the major intracranial venous structures with CT angiography in the setting of intracerebral hemorrhage: comparison of 16- and 64-section CT angiography techniques. AJNR Am J Neuroradiol. 2011 May; 32(5):839-45.
    View in: PubMed
    Score: 0.040
  41. Delgado Almandoz JE, Schaefer PW, Goldstein JN, Rosand J, Lev MH, González RG, Romero JM. Practical scoring system for the identification of patients with intracerebral hemorrhage at highest risk of harboring an underlying vascular etiology: the Secondary Intracerebral Hemorrhage Score. AJNR Am J Neuroradiol. 2010 Oct; 31(9):1653-60.
    View in: PubMed
    Score: 0.038
  42. Ferreira RM, Lev MH, Goldmakher GV, Kamalian S, Schaefer PW, Furie KL, Gonzalez RG, Sanelli PC. Arterial input function placement for accurate CT perfusion map construction in acute stroke. AJR Am J Roentgenol. 2010 May; 194(5):1330-6.
    View in: PubMed
    Score: 0.038
  43. Delgado Almandoz JE, Kelly HR, Schaefer PW, Lev MH, Gonzalez RG, Romero JM. Prevalence of traumatic dural venous sinus thrombosis in high-risk acute blunt head trauma patients evaluated with multidetector CT venography. Radiology. 2010 May; 255(2):570-7.
    View in: PubMed
    Score: 0.038
  44. Delgado Almandoz JE, Schaefer PW, Kelly HR, Lev MH, Gonzalez RG, Romero JM. Multidetector CT angiography in the evaluation of acute blunt head and neck trauma: a proposed acute craniocervical trauma scoring system. Radiology. 2010 Jan; 254(1):236-44.
    View in: PubMed
    Score: 0.037
  45. Delgado Almandoz JE, Yoo AJ, Stone MJ, Schaefer PW, Oleinik A, Brouwers HB, Goldstein JN, Rosand J, Lev MH, Gonzalez RG, Romero JM. The spot sign score in primary intracerebral hemorrhage identifies patients at highest risk of in-hospital mortality and poor outcome among survivors. Stroke. 2010 Jan; 41(1):54-60.
    View in: PubMed
    Score: 0.037
  46. Smith WS, Lev MH, English JD, Camargo EC, Chou M, Johnston SC, Gonzalez G, Schaefer PW, Dillon WP, Koroshetz WJ, Furie KL. Significance of large vessel intracranial occlusion causing acute ischemic stroke and TIA. Stroke. 2009 Dec; 40(12):3834-40.
    View in: PubMed
    Score: 0.036
  47. Delgado Almandoz JE, Yoo AJ, Stone MJ, Schaefer PW, Goldstein JN, Rosand J, Oleinik A, Lev MH, Gonzalez RG, Romero JM. Systematic characterization of the computed tomography angiography spot sign in primary intracerebral hemorrhage identifies patients at highest risk for hematoma expansion: the spot sign score. Stroke. 2009 Sep; 40(9):2994-3000.
    View in: PubMed
    Score: 0.036
  48. Sims JR, Gharai LR, Schaefer PW, Vangel M, Rosenthal ES, Lev MH, Schwamm LH. ABC/2 for rapid clinical estimate of infarct, perfusion, and mismatch volumes. Neurology. 2009 Jun 16; 72(24):2104-10.
    View in: PubMed
    Score: 0.036
  49. Torres-Mozqueda F, He J, Yeh IB, Schwamm LH, Lev MH, Schaefer PW, González RG. An acute ischemic stroke classification instrument that includes CT or MR angiography: the Boston Acute Stroke Imaging Scale. AJNR Am J Neuroradiol. 2008 Jun; 29(6):1111-7.
    View in: PubMed
    Score: 0.033
  50. Sorensen AG, Patel S, Harmath C, Bridges S, Synnott J, Sievers A, Yoon YH, Lee EJ, Yang MC, Lewis RF, Harris GJ, Lev M, Schaefer PW, Buchbinder BR, Barest G, Yamada K, Ponzo J, Kwon HY, Gemmete J, Farkas J, Tievsky AL, Ziegler RB, Salhus MR, Weisskoff R. Comparison of diameter and perimeter methods for tumor volume calculation. J Clin Oncol. 2001 Jan 15; 19(2):551-7.
    View in: PubMed
    Score: 0.020
  51. Hunter GJ, Hamberg LM, Ponzo JA, Huang-Hellinger FR, Morris PP, Rabinov J, Farkas J, Lev MH, Schaefer PW, Ogilvy CS, Schwamm L, Buonanno FS, Koroshetz WJ, Wolf GL, González RG. Assessment of cerebral perfusion and arterial anatomy in hyperacute stroke with three-dimensional functional CT: early clinical results. AJNR Am J Neuroradiol. 1998 Jan; 19(1):29-37.
    View in: PubMed
    Score: 0.016
Connection Strength

The connection strength for concepts is the sum of the scores for each matching publication.

Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.