Method and System for Contrast Inflow Detection in 2D Fluoroscopic Images

An apparatus for contrast inflow detection in a fluoroscopic image sequence comprising a plurality of frames, comprising:

• means for detecting vessel segments in each frame of the fluoroscopic image sequence;
• means for determining a score vector for the fluoroscopic image sequence based on the detected vessel segments in each frame of the fluoroscopic image sequence;
• means for detecting whether a contrast agent injection is present in the fluoroscopic image sequence based on the score vector;
• and
• means for detecting a contrast inflow frame at which contrast agent inflow begins in the fluoroscopic image sequence based on the score vector of the fluoroscopic image sequence.

A non-transitory computer readable medium encoded with computer executable instructions for contrast inflow detection in a fluoroscopic image sequence comprising a plurality of frames, the computer executable instructions defining a method comprising:

• detecting vessel segments in each frame of the fluoroscopic image sequence;
• determining a score vector for the fluoroscopic image sequence based on the detected vessel segments in each frame of the fluoroscopic image sequence;
• detecting whether a contrast agent injection is present in the fluoroscopic image sequence based on the score vector;
• and
• if it is determined that a contrast agent injection is present in the fluoroscopic image sequence, detecting a contrast inflow frame at which contrast agent inflow begins in the fluoroscopic image sequence based on the score vector of the fluoroscopic image sequence.