Heart Bounding Box Automatic Determination in Coronal Magnetic Resonance Temporal Sequences

摘要

The determination of the heart bounding box is a key task that can be used in several applications. Balanced steady-state free precession sequence without contrast produces artifacts originated from the blood flow. For this reason, very few research studies using this type of MR sequence have been conducted. However, this drawback can be used to help in the determination of the heart bounding box. The proposed algorithm is very simple, and averagely determines the heart bounding box in the entire MR temporal sequence of images. After that, it is necessary to adjust the vertical position in each image. The adjustment is a consequence of the diaphragmatic movement. The proposed algorithm is evaluated with several sets of MR temporal sequences without contrast.