An automatic approach for estimating bolus arrival time in dynamic contrast MRI using piecewise continuous regression models

被引：45

作者：

Cheong, LH ^{[1
]}

Koh, TS

Hou, Z

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Natl Univ Singapore, Fac Sci, Dept Computat Sci, Singapore 119074, Singapore

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2003年 / 48卷 / 05期

关键词：

D O I：

10.1088/0031-9155/48/5/403

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We present two regression models for the automatic estimation of bolus arrival times (BATs) in dynamic contrast MRI datasets. Results of Monte Carlo simulation experiments show that the means and standard deviations of the estimated BATs are within the sampling interval even in the presence of significant noise.

引用

页码：N83 / N88

页数：6

共 10 条

[1] Measuring cerebral blood flow using magnetic resonance imaging techniques [J].

Calamante, F ;

Thomas, DL ;

Pell, GS ;

Wiersma, J ;

Turner, R .

JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM, 1999, 19 (07) :701-735

[2]

Calamante F, 2000, MAGN RESON MED, V44, P466, DOI 10.1002/1522-2594(200009)44:3<466::AID-MRM18>3.0.CO

[3]

2-M

[4]

Gill M., 1981, Practical Optimization

[5] The inclusion of capillary distribution in the adiabatic tissue homogeneity model of blood flow [J].

Koh, TS ;

Zeman, V ;

Darko, J ;

Lee, TY ;

Milosevic, MF ;

Haider, M ;

Warde, P ;

Yeung, IWT .

PHYSICS IN MEDICINE AND BIOLOGY, 2001, 46 (05) :1519-1538

[6] ON THE THEORY OF THE INDICATOR-DILUTION METHOD FOR MEASUREMENT OF BLOOD FLOW AND VOLUME [J].

MEIER, P ;

ZIERLER, KL .

JOURNAL OF APPLIED PHYSIOLOGY, 1954, 6 (12) :731-744

[7] High resolution measurement of cerebral blood flow using intravascular tracer bolus passages .1. Mathematical approach and statistical analysis [J].

Ostergaard, L ;

Weisskoff, RM ;

Chesler, DA ;

Gyldensted, C ;

Rosen, BR .

MAGNETIC RESONANCE IN MEDICINE, 1996, 36 (05) :715-725

[8]

Press W.H., 1992, NUMERICAL RECIPES FO

[9] An adiabatic approximation to the tissue homogeneity model for water exchange in the brain: I. Theoretical derivation [J].

St Lawrence, KS ;

Lee, TY .

JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM, 1998, 18 (12) :1365-1377

[10] EQUATIONS FOR MEASURING BLOOD FLOW BY EXTERNAL MONITORING OF RADIOISOTOPES [J].

ZIERLER, KL .

CIRCULATION RESEARCH, 1965, 16 (04) :309-&

← 1 →