A catheter for removing plaque in a blood vessel and a medical apparatus having a catheter of this kind are proposed. The catheter has a catheter sheath, a cutter for removing plaque disposed in the region of the distal end of the catheter sheath, a catheter tip disposed in the region of the distal end of the catheter sheath and bendable relative to the catheter sheath, and at least one imaging sensor arranged in the region of the distal end of the catheter sheath or in the bendable catheter tip. The image signals recorded by the catheter are transmitted for display purposes to an image processing and playback device. A method for assisting a minimally invasive intervention to remove plaque in a blood vessel by the catheter is also provided.