Virtual surgical modification for planning tetralogy of Fallot repair

Jonathan Plasencia; Haithem Babiker; Randy Richardson; Edward Rhee; Brigham Willis; John Nigro; David Cleveland; David H. Frakes

doi:10.1117/12.850773

27 January 2010 Virtual surgical modification for planning tetralogy of Fallot repair

Jonathan Plasencia, Haithem Babiker, Randy Richardson, Edward Rhee, Brigham Willis, John Nigro, David Cleveland, David H. Frakes

Author Affiliations +

Proceedings Volume 7533, Computational Imaging VIII; 75330F (2010) https://doi.org/10.1117/12.850773
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

Goals for treating congenital heart defects are becoming increasingly focused on the long-term, targeting solutions that last into adulthood. Although this shift has motivated the modification of many current surgical procedures, there remains a great deal of room for improvement. We present a new methodological component for tetralogy of Fallot (TOF) repair that aims to improve long-term outcomes. The current gold standard for TOF repair involves the use of echocardiography (ECHO) for measuring the pulmonary valve (PV) diameter. This is then used, along with other factors, to formulate a Z-score that drives surgical preparation. Unfortunately this process can be inaccurate and requires a mid-operative confirmation that the pressure gradient across the PV is not excessive. Ideally, surgeons prefer not to manipulate the PV as this can lead to valve insufficiency. However, an excessive pressure gradient across the valve necessitates surgical action. We propose the use of computational fluid dynamics (CFD) to improve preparation for TOF repair. In our study, pre-operative CT data were segmented and reconstructed, and a virtual surgical operation was then performed to simulate post-operative conditions. The modified anatomy was used to drive CFD simulation. The pressure gradient across the pulmonary valve was calculated to be 9.24mmHg, which is within the normal range. This finding indicates that CFD may be a viable tool for predicting post-operative pressure gradients for TOF repair. Our proposed methodology would remove the need for mid-operative measurements that can be both unreliable and detrimental to the patient.

Citation Download Citation

Jonathan Plasencia, Haithem Babiker, Randy Richardson, Edward Rhee, Brigham Willis, John Nigro, David Cleveland, and David H. Frakes "Virtual surgical modification for planning tetralogy of Fallot repair", Proc. SPIE 7533, Computational Imaging VIII, 75330F (27 January 2010); https://doi.org/10.1117/12.850773

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Photovoltaics

Heart

Surgery

Blood

3D modeling

Arteries

Computational fluid dynamics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years