Ulrich V. Willi, MD (1939–2026) was a pioneering leader in pediatric radiology, shaping modern diagnostic imaging through his work in Zurich, Boston, Stanford, Johns Hopkins, and at IDKD. He combined outstanding academic achievement with global humanitarian engagement, notably his long-standing support of the Kantha Bopha Children’s Hospitals in Cambodia. A perfectionist teacher, mentor, and department chair, he trained and inspired generations of pediatric radiologists worldwide. Prof. Will has been a teacher for IDKD since 1992 and became the organizer of the pediatrics precourse which he organized till 2010.  Remembered for his deep humanity, love of the arts, and enduring friendships, his legacy continues to live on in the many colleagues, students, and patients whose lives he touched.

Ulrich V. Willi, MD (1939–2026) was a pioneering leader in pediatric radiology, shaping modern diagnostic imaging through his work in Zurich, Boston, Stanford, Johns Hopkins, and at IDKD. He combined outstanding academic achievement with global humanitarian engagement, notably his long-standing support of the Kantha Bopha Children’s Hospitals in Cambodia. A perfectionist teacher, mentor, and department chair, he trained and inspired generations of pediatric radiologists worldwide. Prof. Will has been a teacher for IDKD since 1992 and became the organizer of the pediatrics precourse which he organized till 2010.  Remembered for his deep humanity, love of the arts, and enduring friendships, his legacy continues to live on in the many colleagues, students, and patients whose lives he touched.

Written by leading international experts and teachers, the IDKD Book chapters are disease-oriented and cover all relevant imaging modalities, with a focus on magnetic resonance imaging and computed tomography. It will particularly appeal to general radiologists, radiology residents, and interventional radiologists who want to update their diagnostic expertise, as well as clinicians from other specialties who are interested in imaging for their patient care.