Feasibility study of looped-catheter-based 2D-3D image registration of CT and X-rays for cardiac catheterization procedures in a phantom experiment

TY - CHAP

T1 - Feasibility study of looped-catheter-based 2D-3D image registration of CT and X-rays for cardiac catheterization procedures in a phantom experiment

AU - Truong, Michael V N

AU - Penney, Graeme P.

AU - Rhode, Kawal S.

PY - 2013

Y1 - 2013

N2 - For X-ray guided cardiac catheterisations it is desirable to overlay pre-operative 3D-CT information for additional guidance. A common technique to obtain an overlay is to loop a catheter inside a target chamber and then manually align CT-derived surface models using multiple X-ray views. We propose and test a fully automatic algorithm for this purpose. The algorithm aligns the images by first estimating the pose of the CT relative to the X-ray table using the supine and isocentre constraints. Subsequently the pose is refined using an iterative optimisation strategy that maximises the intersection between the loop and projected target chamber, while minimising the separation between the X-ray cardiac border and the projected ventricles, in two X-ray views. Validation was carried out using a geometrically-realistic plastic heart phantom with two looped-catheter configurations formed inside the left atrium. The algorithm executes in under five minutes and yields average 3D-TREs between 2.4 and 5.4 mm over various regions of the heart, and 4.0 mm over the four chambers. Preliminary evaluation of this novel approach indicates feasibility for clinical interventional guidance and merits thorough validation using further phantom and clinical images.

AB - For X-ray guided cardiac catheterisations it is desirable to overlay pre-operative 3D-CT information for additional guidance. A common technique to obtain an overlay is to loop a catheter inside a target chamber and then manually align CT-derived surface models using multiple X-ray views. We propose and test a fully automatic algorithm for this purpose. The algorithm aligns the images by first estimating the pose of the CT relative to the X-ray table using the supine and isocentre constraints. Subsequently the pose is refined using an iterative optimisation strategy that maximises the intersection between the loop and projected target chamber, while minimising the separation between the X-ray cardiac border and the projected ventricles, in two X-ray views. Validation was carried out using a geometrically-realistic plastic heart phantom with two looped-catheter configurations formed inside the left atrium. The algorithm executes in under five minutes and yields average 3D-TREs between 2.4 and 5.4 mm over various regions of the heart, and 4.0 mm over the four chambers. Preliminary evaluation of this novel approach indicates feasibility for clinical interventional guidance and merits thorough validation using further phantom and clinical images.

KW - 2D-3D image registration

KW - cardiac imaging

KW - CT

KW - data fusion

KW - image-guided catheterisation

KW - X-ray

UR - http://www.scopus.com/inward/record.url?scp=84876231055&partnerID=8YFLogxK

U2 - 10.1007/978-3-642-36961-2_36

DO - 10.1007/978-3-642-36961-2_36

M3 - Conference paper

AN - SCOPUS:84876231055

SN - 9783642369605

VL - 7746 LNCS

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 317

EP - 325

BT - Statistical Atlases and Computational Models of the Heart. Imaging and Modelling Challenges

A2 - Camara, Oscar

A2 - Mansi, Tommaso

A2 - Pop, Mihaela

A2 - Rhode, Kawal

A2 - Sermesant, Maxime

A2 - Young, Alistair

PB - Springer Berlin Heidelberg

T2 - 3rd International Workshop on Statistical Atlases and Computational Models of the Heart: Imaging and Modelling Challenges, STACOM 2012

Y2 - 5 October 2012 through 5 October 2012

ER -