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Research ArticleBRAIN

Influence of Partial Volume on Venous Output and Arterial Input Function

I. van der Schaaf, E.-J. Vonken, A. Waaijer, B. Velthuis, M. Quist and T. van Osch
American Journal of Neuroradiology January 2006, 27 (1) 46-50;
I. van der Schaaf
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E.-J. Vonken
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A. Waaijer
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B. Velthuis
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M. Quist
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T. van Osch
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    Fig 1.

    A circular region of interest with a standard size of 2.5 cm in diameter was drawn in the peripheral anterior flow territory at the level of the basal ganglia on a standard location containing both white and gray matter. The location of the measurement of the AIF (artery) and the VOF (vein) are also indicated.

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    Fig 2.

    Mean AUC for the VOF (A), AIF (B) and mean widths of the AIF (C) for 12-mm (○), 6-mm (▪), and 3-mm (•) section thickness in 10 patients. In all patients, a smaller section thickness results in an equal or larger AUC of the VOF (A) and AIF (B). The width of the AIF decreases slightly (C) with a smaller section thickness in most patients.

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    Fig 3.

    Raw attenuation curves of the optimal VOF for 12-mm (○), 6-mm (▪), and 3-mm (•) section thickness (same patient as in Fig 1).

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    Table 1:

    Difference in AUC and width in 12-, 6-, and 3-mm-thick sections

    Difference (%)P ValueDifference (%)P Value
    Mean AUC VOFAUC of optimal VOF
        6 vs 12+17.0176 vs 12+17.014
        3 vs 12+20.0043 vs 12+20.009
        3 vs 6+4.0063 vs 6+3.056
    Mean AUC AIFAUC of optimal AIF
        6 vs 12+22.0006 vs 12+25.000
        3 vs 12+34.0003 vs 12+39.000
        3 vs 6+15.0043 vs 6+19.003
    Mean width AIFWidth of optimal AIF
        6 vs 12−7.0636 vs 12−1.88
        3 vs 12−8.0073 vs 12−2.42
        3 vs 6−2.3283 vs 6−1.44
    • Note:—AUC indicates area under the curve; VOF, venous output function; AIF, arterial input function.

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    Table 2:

    Values for CBV, MT, and CBF in 12-, 6-, and 3-mm-thick sections

    Section Thickness (mm)
    CBV (mL/100 g)
        124.3 ± 1.53
        63.7 ± 1.15
        33.1 ± 0.99
    CBF (mL/100 g/min)
        1261.1 ± 15.7
        648.6 ± 12.5
        334.4 ± 8.07
    MTT (s)
        124.2 ± 0.78
        64.6 ± 0.79
        35.1 ± 0.74
    • Note:—CBV indicates cerebral blood volume; CBF, cerebral blood flow; MTT, mean transit time. Values are means ± SD.

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American Journal of Neuroradiology: 27 (1)
American Journal of Neuroradiology
Vol. 27, Issue 1
January, 2006
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Cite this article
I. van der Schaaf, E.-J. Vonken, A. Waaijer, B. Velthuis, M. Quist, T. van Osch
Influence of Partial Volume on Venous Output and Arterial Input Function
American Journal of Neuroradiology Jan 2006, 27 (1) 46-50;

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Influence of Partial Volume on Venous Output and Arterial Input Function
I. van der Schaaf, E.-J. Vonken, A. Waaijer, B. Velthuis, M. Quist, T. van Osch
American Journal of Neuroradiology Jan 2006, 27 (1) 46-50;
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