Echo UW vs Congenital Calculator

The Echo app provides step-by-step instructions for performing a normal pediatric echocardiogram and uses video clips, images and illustrations to aid in instruction. The app is intended to be used by sonographers at all levels of training, pediatric cardiology fellows, as a teaching aid for pediatric cardiologists and by anyone interested in learning how to perform the normal pediatric echo exam. There are four standard views where images can be obtained: 1. Subcostal 2. Parasternal 3. Apical 4. Suprasternal The exact images and the order in which the images and views are obtained varies by institution. Each protocol (subcostal, parasternal, apical or suprasternal) can be followed in order by clicking on the next tab at the bottom of the page or you can click on an individual numbered view within the protocol list to be taken directly to that view. The name of the view and instructions will pop-up automatically at the bottom of the page. The instructions and additional notes can also be found in the “NOTE” button at the bottom of the page. About The Pediatric and Adult Congenital Heart Program at American Family Children’s Hospital The UW Health Pediatric and Adult Congenital Heart Program consists of a highly experienced team providing diagnostic, interventional and surgical services. We are committed to providing the best outcomes for children and adults with congenital heart disease as well as for children with acquired heart issues. Our goal is deliver remarkable care that exceeds expectations in partnership with our patients, families and referring physicians. You can learn more about the UW Pediatric and Adult Congenital Heart Program at uwhealthkids.org/hearts. Development The content and illustrations were created by Margaret Greco, MD. For questions regarding the app, contact: mmgreco@pediatrics.wisc.edu The mobile application was developed by Jonah Pelfrey. To reach out to the developer, please contact: pelfreyjonah@gmail.com A special thank you to J. Carter Ralphe MD, Ellen Wald MD, Catherine Allen MD, Derek Hoyme MD, Shardha Srinivasan MBBS, John Hokanson MD, Nicholas Von Bergen MD, John Hambrook MD, Matthew Smith PhD, JoAnne Weber BS, RDCS, RVT, James Bednarz RDCS, FACE, Jamie Beebe RDCS, Jennifer Lassiter RDCS, RVT, Michael Miller RDCS, and the entire Heart Program Team. The Echo app is made available to the sonography community as a service in connection with the University of Wisconsin-Madison’s outreach mission. It is intended as a training resource for sonographers, but is not a substitute for other forms of training. THE UNIVERSITY EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES IN CONNECTION WITH THE ECHO APP, INCLUDING BUT NOT LIMITED TO WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, WARRANTIES OF MERCHANTABILITY, AND WARRANTIES OF NON-INFRINGEMENT. By using the Echo app, you acknowledge and agree to the foregoing and waive any and all claims of any kind and description against the Board of Regents of the University of Wisconsin System, its officers, employees and agents, in connection with your use of the Echo app and any decisions you may make as a result of using the Echo app.

Congenital Calculator is a professional cardiac hemodynamic calculator designed for pediatric cardiologists and congenital heart disease specialists. Built on the Fick principle, it calculates pulmonary and systemic blood flow, vascular resistance, and shunt fractions during cardiac catheterization procedures. Key features: • Qp, Qs, QeP and Qp:Qs ratio — all indexed to body surface area • PVR, PVRi, SVR, SVRi — pulmonary and systemic vascular resistance • Mixed venous saturation using SVC and IVC • LaFarge & Miettinen VO₂ estimation with log₁₀ and −20% variant • 8-point saturation step-up warning for shunt detection • Full PDF report generation with patient data and results • O₂ content calculation including dissolved oxygen (pO₂ × 0.003) For use by qualified healthcare professionals only. This app is a clinical decision support tool and does not constitute medical advice, diagnosis, or treatment. All results must be interpreted and verified by a licensed physician. This app has not been evaluated by the FDA or any regulatory body. Always consult current clinical guidelines and institutional protocols. Developed by Subhrajit Lahiri, MD and Omar Abu Anza, MD.