Dr. Pierangelo Renella, Pediatric Cardiology

Dr. Pierangelo Renella is involved in multiple clinical research projects involving cardiac MRI and CT. He sub-specializes in fetal cardiology and advanced cardiovascular imaging, including fetal echocardiography, cardiac MRI and cardiac CT. Dr. Renella helped develop and now co-directs the Advanced Congenital Cardiovascular Imaging program at CHOC.

Dr. Renella is board certified in pediatrics and pediatric cardiology. Prior to joining CHOC, Dr. Renella attended medical school at the University of California, Irvine. He completed his pediatric residency training at Children’s Hospital Los Angeles and a fellowship in pediatric cardiology at the University of California, Los Angeles. He completed an advanced fellowship in advanced cardiovascular imaging at Boston Children’s Hospital in Massachusetts. Dr. Renella is fluent in Spanish and Italian.

Clinical Interests

Fetal cardiology, advanced cardiovascular imaging, fetal echocardiography, cardiac MRI, cardiac CT


Outpatient Heart Center
505 South Main Street, Suite 600
Orange, CA 92868
phone: 714-509-3939

CHOC Cardiodiagnostics
1201 West La Veta Avenue
Holmes Tower, 3rd Floor
Orange, CA 92868
phone: 714-509-9200

CHOC Health Center in Corona
854 Magnolia Avenue, Suite 101
Corona, CA 92879

CHOC Health Center in Mission Viejo
26691 Plaza, Suite 130
Mission Viejo, CA 92691

CHOC Health Center in Newport Beach
500 Superior Avenue, Suite 140
Newport Beach, CA 92660

CHOC Health Center at PIH Health
15725 E Whittier Blvd, #300
Whittier, CA 90603
Appointments: 888-770-2462


  • Pediatric Cardiovascular Imaging Fellowship
    Children’s Hospital Boston, Boston, Massachusetts
  • Pediatric Cardiology Fellowship
    Mattel Children’s Hospital, University of California at Los Angeles Medical Center, Los Angeles, California
  • Transesophageal and fetal echocardiology Rotation
    Children’s Hospital Los Angeles, Los Angeles, California
  • Pediatrics Residency
    Children’s Hospital Los Angeles, Los Angeles, California
  • Pediatric Internship
    Children’s Hospital Los Angeles, Los Angeles, California
  • Medical School
    University of California at Irvine, College of Medicine, Irvine, California

Administrative Appointments

  • Cardiology, CHOC Specialists

Academic Appointments

  • Assistant Clinical Professor, Pediatrics
    UC Irvine School of Medicine

Professional Organizations

  • American Heart Association
  • Society of Cardiovascular Magnetic Resonance

Editorial Boards

  • Pediatrics

Published Works

Nguyen KL, Khan SN, Moriarty JM, Mohajer K, Renella P, Satou GM, Ayad I, Patel S, Boechat MI, Finn JP. High Field MR Imaging in Pediatric Congenital Heart Disease: Initial Results. Pediatr Radiol. 2015 Jan;45(1):42-54.

Renella P, Marx GR, Zhou J, Gauvreau K, Geva T. Feasibility and Reproducibility of Three-Dimensional Echocardiographic Assessment of Right Ventricular Size and Function in Pediatric Patients. J Am Soc Echocardiogr. 2014 Aug;27(8):903-10.

Khan SN, Rapacchi S, Han, F, Renella P, Satou GM, Perens G, Levi DS, Hu P. High Resolution Non-Gadolinium CEMRA in Congenital Heart Disease: Initial Results in Infants at 3.0. Radiological Society of North America (RSNA). 2014; Abstract Poster.

Biniwale RM, Renella P, Reemtsen BL, Alejos JC. Resolution of Long-segment Aortic Stenosis following Simultaneous Heart-Liver Transplant for Familial Hypercholesterolemia. International Society for Heart and Lung Transplantation (ISHLT). 2014; Abstract Poster.

Gallotti R, Renella P, Recto MR, Morchi GS. Transcatheter Fontan Fenestration & Serial Dilation of a Gore-Tex Tube to Facilitate Stent Delivery Across a Restrictive Native Atrial Septum: Late Complication of Fontan Operation. Pediatric Interventional Cardiac Symposium. 2014; Abstract Poster.

Renella P, Phan D, Khan SN, Reemtsen B, Finn JP, Satou GM. Cost benefits of cardiovascular magnetic resonance imaging and angiography performed earlier in the diagnostic assessment of neonatal complex congenital heart disease. Society of Cardiovascular Magnetic Resonance. 2014; Abstract.

Mirsadraee S, Satou GM, Renella P, Hashmi A, Laks H, Finn JP. Magnetic Resonance Angiography in Paced Complex Heterotaxy Syndrome with Fontan Conduit Obstruction and Venovenous Collateral Decompression. Congenit Heart Dis. 2011 Mar-Apr;8(2).

Renella P, Aboulhosn J, Lohan DG, Jonnala P, Finn JP, Satou GM, Williams RJ, Child JS. Two-dimensional and Doppler echocardiography reliably predicts severe pulmonary regurgitation as quantified by cardiac magnetic resonance. J Am Soc Echocardiogr. 2010 Aug;23(8):880-6.

Bui YK, Renella P, Martinez JA, Verity A, Madikians A, Alejos JC. Danon disease with typical early onset cardiomyopathy in a male: focus on a novel LAMP-2 mutation. Pediatr Transplant. 2008 Mar;12(2):246-50.

Renella P, Chang RK, Ferry DA, Bart RD, Sklansky MS. Hypoplastic left heart syndrome: attitudes among pediatric residents and nurses towards fetal and neonatal management. Prenat Diagn. 2007 Nov;27(11):1045-55.


Lectures and Presentations

  • “Advances in Cardiac MRI and MRA”
  • “Chest Pain: When to Refer to a Pediatric Cardiologist”
  • “Advanced Non-Invasive Cardiovascular Imaging”
  • “Use Of Adjunctive Non-Invasive Imaging With Exercise Testing in Children”
  • “The Comprehensive Fetal Echocardiogram”

Book Chapters

  • Renella P, Finn JP. Introduction to Congenital Heart Disease Anatomy. Mushabbar SA, Mohiaddin RH (eds.) (2012). Magnetic Resonance Imaging of Congenital Heart Disease. Springer, London, UK.

Our cardiologists commonly treat: 

  • Congenital heart defects
  • Chest pain
  • Heart murmur
  • Family history of heart disease
  • Hypertension, obesity and lipid management
  • Syncope and palpitations
  • Sports cardiology
  • Cardiac genetics
  • Cardiomyopathy
  • Fetal cardiodiagnostics
  • Chronic lung disease

  • Pierangelo Renella MD
    • Appointments:
    • Office: 714-509-3939
    • Specialty: Cardiology
    • Board Certified: Pediatrics, Pediatric Cardiology
    • Additional Languages: Spanish, Italian
    • On Staff at: CHOC Children's Hospital and CHOC Children's at Mission Hospital


Dr. Pierangelo Renella - Cardiac MRI

Cardiac MRI: Dr. Renella

In this segment, Dr. Pierangelo Renella, CHOC, talks about Cardiac MRI, the advanced non-invasive imaging technique for diagnosing heart defects.

Dr. Renella speaking about Congenital Heart Problems

Congenital Heart Problems: Dr. Renella

In this segment from American Health Journal, Dr. Pierangelo Renella, explains the advantages of early detection of congenital heart disease.