Automatic determination of aortic compliance with cine-magnetic resonance imaging: an application of fuzzy logic theory

Invest Radiol. 2002 Dec;37(12):685-91. doi: 10.1097/00004424-200212000-00008.


Rationale and objectives: Aortic compliance is defined as the relative change in aortic cross-sectional area divided by the change in arterial pressure. Magnetic resonance imaging (MRI) is a useful imaging modality for the noninvasive evaluation of aortic compliance. However, manual tracing of the aortic contour is subject to important interobserver variations. To estimate the aortic compliance from cine-MRI, a method based on fuzzy logic theory was elaborated.

Materials and methods: Seven healthy volunteers and eight patients with Marfan syndrome were examined using an ECG gated cine-MRI sequence. The aorta was imaged in the transverse plane at the level of the pulmonary trunk. A method based on fuzzy logic was developed to automatically detect the aortic contour.

Results: Through our robust automatic contouring method, the calculation of aortic cross-sectional areas allows an estimation of the aortic compliance.

Conclusion: The aortic compliance can be obtained from a fuzzy logic based automatic contouring method, thereby avoiding the important interobserver variation often associated with manual tracing.

MeSH terms

  • Adolescent
  • Adult
  • Aorta / physiopathology*
  • Case-Control Studies
  • Child
  • Fuzzy Logic*
  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging, Cine*
  • Marfan Syndrome / physiopathology*
  • Middle Aged