An efficient method for correcting the edge artifact due to smoothing

Human Brain Mapping

Volumn 6, Issue 3, 1998, Pages 128-136

  Maisog, J Ma ^a,c   Chmielowska, J ^b  

^a NATIONAL INSTITUTE OF MENTAL HEALTH   (United States)

^b NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE   (United States)

^c MASSACHUSETTS GENERAL HOSPITAL   (United States)

Author keywords

Artifact; Convolution; Correction; Functional neuroimaging; Smoothing

Indexed keywords

ANALYTIC METHOD; ARTICLE; ARTIFACT; BRAIN FUNCTION; BRAIN MAPPING; FOURIER TRANSFORMATION; IMAGE ANALYSIS; IMAGE PROCESSING; IMAGE RECONSTRUCTION; PRIORITY JOURNAL; STATISTICAL ANALYSIS;

ARTIFACTS; BRAIN MAPPING; FOURIER ANALYSIS; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; NORMAL DISTRIBUTION; PHANTOMS, IMAGING; TOMOGRAPHY, EMISSION-COMPUTED;

EID: 0031835222     PISSN: 10659471     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-0193(1998)6:3<128::AID-HBM2>3.0.CO;2-5     Document Type: Article

References (18)

1. 2O PET cognitive activation studies. J Neuropsych Clin Neurosci 7:155-169. See in particular p 165.
2. Bailey TC, Gatrell AC (1995): Interactive Spatial Data Analysis. Essex: Longman, pp 84-85.
3. Bergstrom M, Eriksson L, Bohm C, Blomqvist G, Litton J (1983): Correction for scattered radiation in a ring detector positron camera by integral transformation of the projections. J Comput Assist Tomogr 7:42-50.
4. Chmielowska J, Maisog JM, Hallett M (1997): Analysis of single-subject data sets with low number of PET scans. Hum Brain Mapping, accepted. Hum Brain Mapping 5(6):445-453 (1997)
5. Cooley JW, Tukey JW (1965): An algorithm for the machine calculation of complex Fourier series. Math Comput 19:297-301.
6. Daube-Witherspoon ME, Carson RE (1991): Unified deadtime correction model for PET. IEEE Trans Med Imag 10:267-275.
7. Fox PT, Mintun MA, Reiman EM, Raichle ME (1988): Enhanced detection of focal brain responses using intersubject averaging and change-distribution analysis of subtracted PET images. J Cereb Blood Flow Metab 8:642-653.
8. Friston KJ, Frith CD, Liddle PF, Frackowiak RSJ (1991): Comparing functional (PET) images: The assessment of significant change J Cereb Blood Flow Metab 11:690-699.
9. Friston KJ, Worsley KJ, Frackowiak RSJ, Mazziotta JC, Evans AC (1994): Assessing the significance of focal activations using their spatial extent. Hum Brain Mapping 1:210-220.
10. Holmes AP (1994): Statistical Issues in Functional Brain Mapping. Thesis submitted to the University of Glasgow for the degree of Doctor of Philosophy, Department of Statistics. See especially sections 1.6.4.4 and 3.3.6.6 and Appendix B.
11. Poline J-B, Mazoyer BM (1993): Analysis of individual positron emission tomography activation maps by detection of high signal-to-noise pixel clusters. J Cereb Blood Flow Metab 13:425-437. See in particular Appendix I.
12. Poline J-B, Worsley KJ, Evans AC, Friston KJ (1997): Combining spatial extent and peak intensity to test for activations in functional imaging. Neuroimage 5:83-96.
13. Press WH, Teukolsky SA, Verterling WT, Flannery BP (1992): Numerical Recipes in C: The Art of Scientific Computing, 2nd ed. Cambridge: Cambridge University Press, pp 498, 521-525.
14. Priestley MB (1981): Spectral Analysis and Time Series. San Diego. Academic, pp. 210-211.
15. Rosenfeld A, Kak AC (1982): Digital Picture Processing, vol. 2. Orlando, Fla. Academic.
16. Woods RP, Cherry SR, Mazziotta JC (1992): Rapid automated algorithm for aligning and reslicing PET images. J Comput Assist Tomogr 16:620-633.
17. Worsley KJ, Evans AC, Marrett S, Neelin P (1992): A three-dimensional statistical analysis for CBF activation studies in human brain. J Cereb Blood Flow Metab 12:900-918.
18. Worsley KJ, Marrett S, Neelin P, Evans AC (1996): Searching scale space for activation in PET images. Hum Brain Mapping 4:74-90.