This edition is dedicated to the readers who will find this edition useful as this has been the goal of our efforts to complete this revision, especially an era of COVID where everything has been more difficult, but new important knowledge has been emerging and important. I primarily dedicate this to my co-editor, friend and colleague, Bob Hendel, who has had such an important role in all four editions bringing important comments, revisions, and humor to the process.
For my colleagues-past, present, and future, who have provided me with inspiration throughout my career. Additionally, this book is also dedicated to those “behind the scenes,” such as our dedicated and passionate technologists, thoughtful administrators, and societal/regulatory personnel who help optimize the value of nuclear cardiology. And of course, to Gary Heller, the instigator and inspirator for Nuclear Cardiology: Practical Applications and kayaker extraordinaire.