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Items: 1 to 50 of 107

1.

Software updates of OCT segmentation algorithms influence longitudinal assessment of retinal atrophy.

Coric D, Petzold A, Uitdehaag BMJ, Balk LJ.

J Neurol Sci. 2018 Apr 15;387:16-20. doi: 10.1016/j.jns.2018.01.020. Epub 2018 Feb 3.

PMID:
29571856
2.

Multicenter reliability of semiautomatic retinal layer segmentation using OCT.

Oberwahrenbrock T, Traber GL, Lukas S, Gabilondo I, Nolan R, Songster C, Balk L, Petzold A, Paul F, Villoslada P, Brandt AU, Green AJ, Schippling S.

Neurol Neuroimmunol Neuroinflamm. 2018 Mar 13;5(3):e449. doi: 10.1212/NXI.0000000000000449. eCollection 2018 May.

3.

Thiamine deficiency impairs common eider (Somateria mollissima) reproduction in the field.

Mörner T, Hansson T, Carlsson L, Berg AL, Ruiz Muñoz Y, Gustavsson H, Mattsson R, Balk L.

Sci Rep. 2017 Oct 31;7(1):14451. doi: 10.1038/s41598-017-13884-1.

4.

Retinal layer segmentation in multiple sclerosis: a systematic review and meta-analysis.

Petzold A, Balcer LJ, Calabresi PA, Costello F, Frohman TC, Frohman EM, Martinez-Lapiscina EH, Green AJ, Kardon R, Outteryck O, Paul F, Schippling S, Vermersch P, Villoslada P, Balk LJ; ERN-EYE IMSVISUAL.

Lancet Neurol. 2017 Oct;16(10):797-812. doi: 10.1016/S1474-4422(17)30278-8. Epub 2017 Sep 12. Review.

PMID:
28920886
5.

Structure-function relationships in the visual system in multiple sclerosis: an MEG and OCT study.

Tewarie P, Balk LJ, Hillebrand A, Steenwijk MD, Uitdehaag BMJ, Stam CJ, Petzold A.

Ann Clin Transl Neurol. 2017 Jul 25;4(9):614-621. doi: 10.1002/acn3.415. eCollection 2017 Sep.

6.

Diagnostic accuracy of optical coherence tomography inter-eye percentage difference for optic neuritis in multiple sclerosis.

Coric D, Balk LJ, Uitdehaag BMJ, Petzold A.

Eur J Neurol. 2017 Dec;24(12):1479-1484. doi: 10.1111/ene.13443. Epub 2017 Oct 9.

PMID:
28887838
7.

Ganglion cell layer measurements correlate with disease severity in patients with Alzheimer's disease.

den Haan J, Balk LJ, Verbraak FD.

Acta Ophthalmol. 2018 Mar;96(2):e265-e266. doi: 10.1111/aos.13550. Epub 2017 Aug 22. No abstract available.

PMID:
28834252
8.

Switching natalizumab to fingolimod within 6 weeks reduces recurrence of disease activity in MS patients.

Leurs CE, van Kempen ZL, Dekker I, Balk LJ, Wattjes MP, Rispens T, Uitdehaag BM, Killestein J.

Mult Scler. 2017 Aug 1:1352458517726381. doi: 10.1177/1352458517726381. [Epub ahead of print]

PMID:
28823223
9.

Retinal atrophy in relation to visual functioning and vision-related quality of life in patients with multiple sclerosis.

Balk LJ, Coric D, Nij Bijvank JA, Killestein J, Uitdehaag BM, Petzold A.

Mult Scler. 2017 May 1:1352458517708463. doi: 10.1177/1352458517708463. [Epub ahead of print]

PMID:
28511578
10.

Cerebrospinal fluid mtDNA concentration is elevated in multiple sclerosis disease and responds to treatment.

Leurs CE, Podlesniy P, Trullas R, Balk L, Steenwijk MD, Malekzadeh A, Piehl F, Uitdehaag BM, Killestein J, van Horssen J, Teunissen CE.

Mult Scler. 2018 Apr;24(4):472-480. doi: 10.1177/1352458517699874. Epub 2017 Mar 15.

PMID:
28294696
11.

Cognitive impairment in patients with multiple sclerosis is associated with atrophy of the inner retinal layers.

Coric D, Balk LJ, Verrijp M, Eijlers A, Schoonheim MM, Killestein J, Uitdehaag BM, Petzold A.

Mult Scler. 2018 Feb;24(2):158-166. doi: 10.1177/1352458517694090. Epub 2017 Feb 1.

PMID:
28273785
12.

A rare cause for visual symptoms in multiple sclerosis: posterior internuclear ophthalmoplegia of Lutz, a historical misnomer.

Nij Bijvank JA, Balk LJ, Tan HS, Uitdehaag BM, van Rijn LJ, Petzold A.

J Neurol. 2017 Mar;264(3):600-602. doi: 10.1007/s00415-017-8412-4. Epub 2017 Feb 13. No abstract available.

PMID:
28194531
13.

Widespread episodic thiamine deficiency in Northern Hemisphere wildlife.

Balk L, Hägerroth PÅ, Gustavsson H, Sigg L, Åkerman G, Ruiz Muñoz Y, Honeyfield DC, Tjärnlund U, Oliveira K, Ström K, McCormick SD, Karlsson S, Ström M, van Manen M, Berg AL, Halldórsson HP, Strömquist J, Collier TK, Börjeson H, Mörner T, Hansson T.

Sci Rep. 2016 Dec 13;6:38821. doi: 10.1038/srep38821.

14.

The APOSTEL recommendations for reporting quantitative optical coherence tomography studies.

Cruz-Herranz A, Balk LJ, Oberwahrenbrock T, Saidha S, Martinez-Lapiscina EH, Lagreze WA, Schuman JS, Villoslada P, Calabresi P, Balcer L, Petzold A, Green AJ, Paul F, Brandt AU, Albrecht P; IMSVISUAL consortium.

Neurology. 2016 Jun 14;86(24):2303-9. doi: 10.1212/WNL.0000000000002774. Epub 2016 May 25.

15.

Timing of retinal neuronal and axonal loss in MS: a longitudinal OCT study.

Balk LJ, Cruz-Herranz A, Albrecht P, Arnow S, Gelfand JM, Tewarie P, Killestein J, Uitdehaag BM, Petzold A, Green AJ.

J Neurol. 2016 Jul;263(7):1323-31. doi: 10.1007/s00415-016-8127-y. Epub 2016 May 3.

16.

Retinal thickness measured with optical coherence tomography and risk of disability worsening in multiple sclerosis: a cohort study.

Martinez-Lapiscina EH, Arnow S, Wilson JA, Saidha S, Preiningerova JL, Oberwahrenbrock T, Brandt AU, Pablo LE, Guerrieri S, Gonzalez I, Outteryck O, Mueller AK, Albrecht P, Chan W, Lukas S, Balk LJ, Fraser C, Frederiksen JL, Resto J, Frohman T, Cordano C, Zubizarreta I, Andorra M, Sanchez-Dalmau B, Saiz A, Bermel R, Klistorner A, Petzold A, Schippling S, Costello F, Aktas O, Vermersch P, Oreja-Guevara C, Comi G, Leocani L, Garcia-Martin E, Paul F, Havrdova E, Frohman E, Balcer LJ, Green AJ, Calabresi PA, Villoslada P; IMSVISUAL consortium.

Lancet Neurol. 2016 May;15(6):574-84. doi: 10.1016/S1474-4422(16)00068-5. Epub 2016 Mar 18.

PMID:
27011339
17.

Cortical atrophy patterns in multiple sclerosis are non-random and clinically relevant.

Steenwijk MD, Geurts JJ, Daams M, Tijms BM, Wink AM, Balk LJ, Tewarie PK, Uitdehaag BM, Barkhof F, Vrenken H, Pouwels PJ.

Brain. 2016 Jan;139(Pt 1):115-26. doi: 10.1093/brain/awv337. Epub 2015 Dec 4.

PMID:
26637488
18.

Multi-parametric structural magnetic resonance imaging in relation to cognitive dysfunction in long-standing multiple sclerosis.

Daams M, Steenwijk MD, Schoonheim MM, Wattjes MP, Balk LJ, Tewarie PK, Killestein J, Uitdehaag BM, Geurts JJ, Barkhof F.

Mult Scler. 2016 Apr;22(5):608-19. doi: 10.1177/1352458515596598. Epub 2015 Jul 24.

PMID:
26209593
19.

Unraveling the neuroimaging predictors for motor dysfunction in long-standing multiple sclerosis.

Daams M, Steenwijk MD, Wattjes MP, Geurts JJ, Uitdehaag BM, Tewarie PK, Balk LJ, Pouwels PJ, Killestein J, Barkhof F.

Neurology. 2015 Jul 21;85(3):248-55. doi: 10.1212/WNL.0000000000001756. Epub 2015 Jun 26.

PMID:
26115736
20.

Visual pathway neurodegeneration winged by mitochondrial dysfunction.

Petzold A, Nijland PG, Balk LJ, Amorini AM, Lazzarino G, Wattjes MP, Gasperini C, van der Valk P, Tavazzi B, Lazzarino G, van Horssen J.

Ann Clin Transl Neurol. 2015 Feb;2(2):140-50. doi: 10.1002/acn3.157. Epub 2014 Dec 17.

21.

Re: Garcia-Martin et al.: Retinal layer segmentation in patients with multiple sclerosis using spectral domain optical coherence tomography (Ophthalmology 2014;121:573-9).

Oberwahrenbrock T, Balk L, Petzold A, Brandt AU, Albrecht P.

Ophthalmology. 2014 Nov;121(11):e63. doi: 10.1016/j.ophtha.2014.06.018. Epub 2014 Oct 24. No abstract available.

PMID:
25444947
22.

Functional brain networks: linking thalamic atrophy to clinical disability in multiple sclerosis, a multimodal fMRI and MEG study.

Tewarie P, Schoonheim MM, Schouten DI, Polman CH, Balk LJ, Uitdehaag BM, Geurts JJ, Hillebrand A, Barkhof F, Stam CJ.

Hum Brain Mapp. 2015 Feb;36(2):603-18. doi: 10.1002/hbm.22650. Epub 2014 Oct 8.

PMID:
25293505
23.

Toward the use of proxy reports for estimating long-term patient-reported outcomes in multiple sclerosis.

Sonder JM, Balk LJ, van der Linden FA, Bosma LV, Polman CH, Uitdehaag BM.

Mult Scler. 2015 Dec;21(14):1865-71. doi: 10.1177/1352458514544078. Epub 2014 Sep 25.

PMID:
25257617
24.

Distribution of retinal layer atrophy in patients with Parkinson disease and association with disease severity and duration.

Balk LJ, Petzold A, Oberwahrenbrock T, Brandt AU, Albrecht P.

Am J Ophthalmol. 2014 Oct;158(4):845. doi: 10.1016/j.ajo.2014.06.022. No abstract available.

PMID:
25220003
25.

Retinal segmentation to demonstrate hyperplasia in ataxia of Charlevoix-Saguenay: critique on study methodology and results.

Albrecht P, Balk L, Oberwahrenbrock T, Petzold A, Paul F.

Invest Ophthalmol Vis Sci. 2014 Aug 4;55(8):4728. doi: 10.1167/iovs.14-14876. No abstract available.

PMID:
25091412
26.

Pleistocene paleo-groundwater as a pristine fresh water resource in southern Germany--evidence from stable and radiogenic isotopes.

van Geldern R, Baier A, Subert HL, Kowol S, Balk L, Barth JAC.

Sci Total Environ. 2014 Oct 15;496:107-115. doi: 10.1016/j.scitotenv.2014.07.011. Epub 2014 Jul 24.

PMID:
25063917
27.

Disruption of structural and functional networks in long-standing multiple sclerosis.

Tewarie P, Steenwijk MD, Tijms BM, Daams M, Balk LJ, Stam CJ, Uitdehaag BM, Polman CH, Geurts JJ, Barkhof F, Pouwels PJ, Vrenken H, Hillebrand A.

Hum Brain Mapp. 2014 Dec;35(12):5946-61. doi: 10.1002/hbm.22596. Epub 2014 Jul 22.

PMID:
25053254
28.

Physiological variation of retinal layer thickness is not caused by hydration: a randomised trial.

Balk LJ, Oberwahrenbrock T, Uitdehaag BM, Petzold A.

J Neurol Sci. 2014 Sep 15;344(1-2):88-93. doi: 10.1016/j.jns.2014.06.031. Epub 2014 Jun 30.

PMID:
25005893
29.

Bidirectional trans-synaptic axonal degeneration in the visual pathway in multiple sclerosis.

Balk LJ, Steenwijk MD, Tewarie P, Daams M, Killestein J, Wattjes MP, Vrenken H, Barkhof F, Polman CH, Uitdehaag BM, Petzold A.

J Neurol Neurosurg Psychiatry. 2015 Apr;86(4):419-24. doi: 10.1136/jnnp-2014-308189. Epub 2014 Jun 27.

PMID:
24973342
30.

Quality control for retinal OCT in multiple sclerosis: validation of the OSCAR-IB criteria.

Schippling S, Balk LJ, Costello F, Albrecht P, Balcer L, Calabresi PA, Frederiksen JL, Frohman E, Green AJ, Klistorner A, Outteryck O, Paul F, Plant GT, Traber G, Vermersch P, Villoslada P, Wolf S, Petzold A.

Mult Scler. 2015 Feb;21(2):163-70. doi: 10.1177/1352458514538110. Epub 2014 Jun 16.

PMID:
24948688
31.

Current and future potential of retinal optical coherence tomography in multiple sclerosis with and without optic neuritis.

Balk LJ, Petzold A.

Neurodegener Dis Manag. 2014;4(2):165-76. doi: 10.2217/nmt.14.10. Review.

PMID:
24832034
32.

Effects of an oil spill in a harbor assessed using biomarkers of exposure in eelpout.

Sturve J, Balk L, Liewenborg B, Adolfsson-Erici M, Förlin L, Carney Almroth B.

Environ Sci Pollut Res Int. 2014 Dec;21(24):13758-68. doi: 10.1007/s11356-014-2890-z. Epub 2014 May 13.

33.

Mean upper cervical cord area (MUCCA) measurement in long-standing multiple sclerosis: relation to brain findings and clinical disability.

Daams M, Weiler F, Steenwijk MD, Hahn HK, Geurts JJ, Vrenken H, van Schijndel RA, Balk LJ, Tewarie PK, Tillema JM, Killestein J, Uitdehaag BM, Barkhof F.

Mult Scler. 2014 Dec;20(14):1860-5. doi: 10.1177/1352458514533399. Epub 2014 May 8.

PMID:
24812042
34.

What explains gray matter atrophy in long-standing multiple sclerosis?

Steenwijk MD, Daams M, Pouwels PJ, Balk LJ, Tewarie PK, Killestein J, Uitdehaag BM, Geurts JJ, Barkhof F, Vrenken H.

Radiology. 2014 Sep;272(3):832-42. doi: 10.1148/radiol.14132708. Epub 2014 Apr 23. Erratum in: Radiology. 2014 Nov;273(2):629.

PMID:
24761837
35.

Do patient and proxy agree? Long-term changes in multiple sclerosis physical impact and walking ability on patient-reported outcome scales.

Sonder JM, Balk LJ, Bosma LV, Polman CH, Uitdehaag BM.

Mult Scler. 2014 Oct;20(12):1616-23. doi: 10.1177/1352458514529173. Epub 2014 Apr 7.

PMID:
24710798
36.

Cytological and biochemical biomarkers in adult female perch (Perca fluviatilis) in a chronically polluted gradient in the Stockholm recipient (Sweden).

Hansson T, Baršienė J, Tjärnlund U, Åkerman G, Linderoth M, Zebühr Y, Sternbeck J, Järnberg U, Balk L.

Mar Pollut Bull. 2014 Apr 15;81(1):27-40. doi: 10.1016/j.marpolbul.2014.03.001. Epub 2014 Mar 18.

PMID:
24655945
37.

A dam for retrograde axonal degeneration in multiple sclerosis?

Balk LJ, Twisk JW, Steenwijk MD, Daams M, Tewarie P, Killestein J, Uitdehaag BM, Polman CH, Petzold A.

J Neurol Neurosurg Psychiatry. 2014 Jul;85(7):782-9. doi: 10.1136/jnnp-2013-306902. Epub 2014 Jan 28.

PMID:
24474822
38.

Disease course heterogeneity and OCT in multiple sclerosis.

Balk LJ, Tewarie P, Killestein J, Polman CH, Uitdehaag B, Petzold A.

Mult Scler. 2014 Aug;20(9):1198-206. doi: 10.1177/1352458513518626. Epub 2014 Jan 8.

PMID:
24402036
39.

The clinical spectrum of microcystic macular edema.

Burggraaff MC, Trieu J, de Vries-Knoppert WA, Balk L, Petzold A.

Invest Ophthalmol Vis Sci. 2014 Feb 18;55(2):952-61. doi: 10.1167/iovs.13-12912.

PMID:
24398089
40.

Retinal hyperaemia-related blood vessel artifacts are relevant to automated OCT layer segmentation.

Balk LJ, Mayer M, Uitdehaag BM, Petzold A.

J Neurol. 2014 Mar;261(3):511-7. doi: 10.1007/s00415-013-7226-2. Epub 2014 Jan 5.

PMID:
24390200
41.

Biomarker investigations in adult female perch (Perca fluviatilis) from industrialised areas in northern Sweden in 2003.

Hansson T, Hansen W, Tjärnlund U, Balk L, Bengtsson BE.

Arch Environ Contam Toxicol. 2014 Feb;66(2):237-47. doi: 10.1007/s00244-013-9974-5. Epub 2013 Dec 3.

PMID:
24297393
42.

Physiological variation of segmented OCT retinal layer thicknesses is short-lasting.

Balk L, Mayer M, Uitdehaag BM, Petzold A.

J Neurol. 2013 Dec;260(12):3109-14. doi: 10.1007/s00415-013-7097-6. Epub 2013 Oct 8.

PMID:
24101128
43.

Safety, anxiety and natalizumab continuation in JC virus-seropositive MS patients.

van Rossum JA, Vennegoor A, Balk L, Uitdehaag BM, Polman CH, Killestein J.

Mult Scler. 2014 Jan;20(1):108-11. doi: 10.1177/1352458513495582. Epub 2013 Jul 4.

PMID:
23828867
44.

Magnetic resonance imaging correlates of physical disability in relapse onset multiple sclerosis of long disease duration.

Kearney H, Rocca MA, Valsasina P, Balk L, Sastre-Garriga J, Reinhardt J, Ruggieri S, Rovira A, Stippich C, Kappos L, Sprenger T, Tortorella P, Rovaris M, Gasperini C, Montalban X, Geurts JJ, Polman CH, Barkhof F, Filippi M, Altmann DR, Ciccarelli O, Miller DH, Chard DT.

Mult Scler. 2014 Jan;20(1):72-80. doi: 10.1177/1352458513492245. Epub 2013 Jun 27.

45.

Influence of the eye-tracking-based follow-up function in retinal nerve fiber layer thickness using fourier-domain optical coherence tomography.

Balk LJ, Petzold A.

Invest Ophthalmol Vis Sci. 2013 Apr 30;54(4):3045. doi: 10.1167/iovs.13-12073. No abstract available.

PMID:
23633680
46.

Positive association between dietary iron intake and iron status in HIV-infected children in Johannesburg, South Africa.

Kruger HS, Balk LJ, Viljoen M, Meyers TM.

Nutr Res. 2013 Jan;33(1):50-8. doi: 10.1016/j.nutres.2012.11.008. Epub 2012 Dec 20.

PMID:
23351410
47.

Spinal cord lesions in patients with clinically isolated syndrome: a powerful tool in diagnosis and prognosis.

Sombekke MH, Wattjes MP, Balk LJ, Nielsen JM, Vrenken H, Uitdehaag BM, Polman CH, Barkhof F.

Neurology. 2013 Jan 1;80(1):69-75. doi: 10.1212/WNL.0b013e31827b1a67. Epub 2012 Dec 12.

PMID:
23243070
48.

A simple sign for recognizing off-axis OCT measurement beam placement in the context of multicentre studies.

Balk LJ, de Vries-Knoppert WA, Petzold A.

PLoS One. 2012;7(11):e48222. doi: 10.1371/journal.pone.0048222. Epub 2012 Nov 8.

49.

Microcystic macular oedema confirmed, but not specific for multiple sclerosis.

Balk LJ, Killestein J, Polman CH, Uitdehaag BM, Petzold A.

Brain. 2012 Dec;135(Pt 12):e226; author reply e227. doi: 10.1093/brain/aws216. Epub 2012 Oct 17. No abstract available.

PMID:
23078994
50.

Clinical relevance of serum natalizumab concentration and anti-natalizumab antibodies in multiple sclerosis.

Vennegoor A, Rispens T, Strijbis EM, Seewann A, Uitdehaag BM, Balk LJ, Barkhof F, Polman CH, Wolbink G, Killestein J.

Mult Scler. 2013 Apr;19(5):593-600. doi: 10.1177/1352458512460604. Epub 2012 Sep 19.

PMID:
22992450

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