Publisher DOI: 10.1002/mp.13388
Title: Bimodal intravascular volumetric imaging combining OCT and MPI
Language: English
Authors: Latus, Sarah 
Griese, Florian 
Schlüter, Matthias 
Otte, Christoph 
Möddel, Martin 
Gräser, Matthias 
Saathoff, Thore 
Knopp, Tobias 
Schlaefer, Alexander 
Keywords: biomodal imaging;intravascular optical coherence tomography (IVOCT);luminal centerline;magnetic particle imaging (MPI);vessel phantoms
Issue Date: Mar-2019
Source: Medical physics 3 (46): 1371-1383 (2019-03)
Journal or Series Name: Medical physics 
Abstract (english): Intravascular optical coherence tomography (IVOCT) is a catheter-based image modality allowing for high-resolution imaging of vessels. It is based on a fast sequential acquisition of A-scans with an axial spatial resolution in the range of 5-10 μm, that is, one order of magnitude higher than in conventional methods like intravascular ultrasound or computed tomography angiography. However, position and orientation of the catheter in patient coordinates cannot be obtained from the IVOCT measurements alone. Hence, the pose of the catheter needs to be established to correctly reconstruct the three-dimensional vessel shape. Magnetic particle imaging (MPI) is a three-dimensional tomographic, tracer-based, and radiation-free image modality providing high temporal resolution with unlimited penetration depth. Volumetric MPI images are angiographic and hence suitable to complement IVOCT as a comodality. We study simultaneous bimodal IVOCT MPI imaging with the goal of estimating the IVOCT pullback path based on the 3D MPI data.
ISSN: 0094-2405
Institute: Biomedizinische Bildgebung E-5 
Medizintechnische Systeme E-1 
Type: (wissenschaftlicher) Artikel
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